Huge fan of what you guys do. One of the only real negative comments that I've been seeing consistently about the Model S Plaid is the brakes being not strong enough for a vehicle as fast as it is. Since you asked what we would like to see in detail on the vehicle, I'd love to hear you guys go over the braking system on the car, whether you also found the brakes lacking when driving it on the track, and a comparison between what the plaid uses in its braking system and what is found on other high performance vehicles. Thanks!
Think of it this way, the car is expensive to some of us, but it is a bargain for being as good as a 2M dollar super car. Ceramic brakes is optional for the Plaid and cost $20k from Tesla. Tesla can include the brakes, charge people 20k more and it’ll still be a bargain, but they deemed that most people won’t be driving on a race track all day. I don’t see this decision as a negative.
@@AudiTTQuattro2003 Car and Driver review said the brakes SUCK a vehicle with 1000HP and it can't stop at speeds, advertised it can do, at 161 mph, car and driver said it's horrible steering, wanders, UNSTABLE, and it doesn't stop. Read the review, $140,000 POS, spend $140K on an audi RS series or a Porsche, rock solid at same speeds, cus it's properly designed, with better parts, My $45K VW golf r can do 155mph and is rock steady and it STOPS the Mk 8 new version VW golf r did 171 MPH on the autobahn, stable, quiet, like it was nothing, and it stops perfectly from such speeds. tesla is a goof
@@cengeb Anyone can see from who your subbed too your a ford & VW fan boy, and a Tesla hater... Try and hide it a little better next time, when spinning BS...
That rear subframe is incredibly elegant and light, wait until you see the top of it. Check the passenger rear air spring harness for tight proximity to the rear tire. Notice how the rear motors on the Plaid have an almost polished finish (to eliminate cracking) compared to the old ones. The rear motor in the Plaid was taken directly from the (yet to be built) Tesla Roadster. Also cut the drive unit oil filters open to see how much (if any) carbon fiber wore off of the rotors. Unfortunately no steer by wire yet as the system apparently couldn't pass NVH testing.
If only I was about 20 years younger I would volunteer to work at Munro just to part of all this super interesting engineering environment. Keep up the great videos guys!
One of the best features of the Model Y climate system is that you can control it with software (on the screen or with the app). I can start the climate system from the house before I go out to the car. They also just added a scheduled charging feature where I can tell the car to charge overnight and be ready at a certain time (like 7:00 AM). This includes turning on the climate system so it is ready at 7:00 AM as well. Warm car + full battery = great way to start your day. The other great feature is Dog Mode. Dogs just love to go for a drive but if it is too hot or too cold to leave the dog in the car then they have to stay home. But with Dog Mode you can leave the climate system running and the dog safely in the car when you go into the store. The monitor says "Don't worry, my owner will be right back. It's 72 degrees inside" Really nice!
I am so excited to use this on my Model Y when it arrives. My garage is not heated but I can't start my ICE vehicles inside due to the CO2. No more cold car for the first 10 minutes of my 12 minute drive! Also way fewer times pumping gas when its -15F like I have now done 3 times in the past month. Might not be the road tripper in the frozen tundra but as a daily driver its going to be great.
@@cengeb You're REALLY not gonna want to remote start an ICE vehicle if it's in an enclosed space. Also, the cheapest Tesla (less than $40K) has remote start, not just the expensive ones. How far away from the car do you have to be for remote start to work on a Honda? With a Tesla, you can do it wherever you are if both you and the car can connect to the Internet.
@@RichTeer If the car is in an enclosed space, it won't need to be warmed up!!! My neighbor starts their Honda from inside the house, car is out on the driveway, startles me every time..there is no tesla under $40K. and i don't want my car connected to the internet, stuff is tracked quite well now, with cell phones, cameras, etc. The biggest connection is ME driving my VW Golf R, connected to DRIVING it, manual stick of course...
@@oof_Dad the car’s HVAC works really fast also. Times when I sat in my car and though “brrrrr” and in a minute I forgot that I was cold. It’s not often praised as a feature
thank you for the teardown! Earlier models had 2 PTC heaters: one for coolant for the battery, another was a standalone HV PTC air heater for the cabin . Earlier model 3, one PTC air heater just for the cabin, and used the heat from INV/MOT to heat the coolant that was pumped to heat the battery. (2018-2021 M3 AWD) Approximately ~2.5kW loss from the front induction motor/system to the coolant everytime they wanted to precondition or warm up the battery.
When I still had my ICE vehicle I used to have a small electric heater in the car while car was in the driveway in the cold. Plugged it in before I had breakfast (there was a socket outside the house). Car was nice, warm and ice-free when drove off. The heat from the electric heater remained in the car until the engine became warm after which I use the heater from the car. This is better for the environment and better for the engine.
I was watching another video and the notification for Munro popped up needless to say I’m here. Thanks Sandy and all the gang the work you guys do is appreciated.
Every episode is like an advent Christmas calendar... you never know what new wonderful thing will be revealed. Every new upload is a much watch and brings geeky joy!
No, you do not have to wait for the thermostat on an ICE. The coolant flows through the engine and into the heater core in the cabin. it always flow there. So for each degree the colant goes up, another degree is going up in the heater core. The thermostat only opens to the radiator in the front, if needed. That is why the temperature is gradually going up in the cabin air outlet.
That's interesting, thanks for the clear explanation. A few other similar comments, but not as clearly stated. I do always remember though how much I loved that my LS1 camaro with the aluminum engine block always got cabin heat so quickly, always attributed it to the aluminum block heating up so much quicker than if iron.
This is true, the heater core gets coolant directly from the back of cylinder heads. The EV heat pump is still much faster at heating the cabin than an average ICE engine.
@@towlie911 That is why there are auxilliry heaters in ICE cars too today. To help heat, and to preheat. Remember that the battery also needs heating in a BEV. Start a Tesla with a battery that is -20 or -30 C and see how long it takes for it to heat up.....
Love love love these, so informative. And so glad to have another Tesla series, the 3 and Y were my hands down favorite YT series of 2020/2021. One side note, I get a slight negative vibe from Cory, the way he corrects Sandy, interrupts him, or tries to steer him. Sort of like "ok grandpa, you're forgetting again, let me help you". Sandy is great, have a slice of humble pie Cory and let him lead.
Model S/X castings are similar to Megacasting used by model Y, but smaller, and mod S/X only have front Corner casting, unlike Total front casting in model Y. should also be similar material.
@@cengeb Wow you're an extremely motivated Tesla troll lol. I hope they are paying you well, whoever they are, because if you're doing this much dedicated trolling on your own time then wow... Musk, created paypal, awesome, led Tesla to be more valuable than all other car companies in the world combined, made spacex the greatest space launch company in the world even over all governments, boring company, neuralink...It's amazing to me that people are so focused on hate instead of greatness that they troll like this.
@@jaya8352 Musk did it with YOUR taxes, lots of gov't subsidiary, and without NASA, a gov't project, there is no space X, he did nothing, that wasn't there already, Nothing. The mkt cap of Tesla is unsustainable, stay put for the big CRASH, I guess you don't remember Enron, MCI Worldcom, Bernie Madoff, and on and on, or the lady with the fake blood test scam Theron...wake up..GERMANY will teach Musk how a car factory is run, he has skirted lots of regulations, which he ain't gonna get away with in Europe...He also pays his people 20% LESS than other auto makers employees in Germany, tesla won't survive doing that to employees. Look it up.
@First Last Not proven, you just assume, it's a dumb design, when Tesla become uninsurable cus of high costs of no repair, the car will fade away, it's impractical, and a poor design, leave car making to car companies....tesla is a hobby
Team Munro is exactly what this world needs more of, straight forward, direct, factual information without any of the bias that is typically inserted. I truly hope that you find all of the help you need to be able to perform more of this essential content! If only I were younger and closer to your location…
Please show us the front lower control arms and knuckles while turning the steering wheel from lock to lock. There's a lot more complexity in those knuckles than a typical car, and we'd love to see how they move with those double lower joints.
I have to admit, I am extremely impressed with the scope of knowledge that Cory has in not only these vehicles, but obviously a variety of others, in order to be able to not be confused by the array of new designs you’re finding in these Tesla‘s. I thought I saw in one of your videos what his previous work history or background was, but it would be interesting to know how he came about such an impressive understanding of what he’s doing. Thanks for a great video again
I also love multiple use parts. You should see an 80s Honda Accord power steering pump/fuel pump and speedo drive assemble in a few ounce pump bolted into the top of the transmission. That blew my mind. Using the transmission to drive all 3 and using the trans fluid. So many parts saved here.
At 19:33 when Corey is holding the cable for the DC to DC converter there is a square of silver tape on the on the structure behind. There is a matching one on the other side behind Sandy. What’s that tape for?
Question regarding removal of the air intake: 16:06 "here is what was causing it, we had these hooks, those hooks are pretty aggressive we couldn't get it out". If you had know about these hooks, would you have been able to remove the air intake, without removing the small batteri first?
I'd like to see some in-depth coverage of the ADAS, info-tainment and safety/security components. 1) Where are the antennas (BT, wifi and cellular)? 2) What are the cameras' resolutions and FoV? 3) Any word on FLIR or IR cameras getting added to these cars? 4) Do the rear doors have an emergency release like the fronts? 5) How does AP/FSD interact with the steering assembly? 6) What are specs on the display screens? 7) What about V2L (vehicle-to-load) capability. Great job! Keep up the good work. Nobody else is fine-toothing these cars like Munro.
Really enjoying the series so far. Can definitely tell this is a more structured series than the Model Y teardown. The camera work was really great too, showing us Sandy and Cory discussing stuff without missing out any of the gorgeous mechanical stuff.
from what I heard Sandy, the main reason why smaller lithium battery aren`t use in gas powered car is because the CCA (Cold Crank Amp) isn't enough to start a gas powered engine in cold climate. Nowadays with better chemistry I can't say if it`s still a valid reason, but from what I can tell the price is also still not there compare to traditional lead acid battery, a car lithium battery seems to cost 5x to 6x when having similar CCA specs while advertising only a 2 to 3 times longer lifespan. Awesome video like always, will you considere looking again at a tesla model Y from Giga Texas that will feature the 4680 cells with structural battery pack?
I REALLY want to understand the air suspension, specifically how you think it might be both similar and different from Cybertruck as well as compared to other air suspensions (both OEM and aftermarket if there’s a difference). I also am very curious how the dampening/rebound control and feel compare to high quality hydraulic suspensions. Lastly, though it’s more about Cybertruck, how do you see wheel travel being effected by air suspension. I’ve read that one reason air suspension isn’t as popular for off-road is around wheel travel characteristics.
@Cybertruck Truck Guy: you should take a look at the air suspension on the Ram trucks in production now. I believe they use a Continental supplier system and people who own those trucks love them. Tesla might just purchase an off the shelf system like the Continental if it meets their needs. Of course, no way to know what Tesla will do right now.
Anyone who has worked with high performance aircraft understands the part you need to remove has had the rest of the aircraft built around it. Once the sequence is figured out, the next one is a piece of cake. Just like the battery removal.
If the details like that that let you know whether a car has been worked on or not before. When you find those hard to get to nuts and bolts not reinstalled. Luckily for my customers my OCD tendencies compels me to reinstall those annoying fasteners
1) I keep meaning to say I LOVE that you programmed your theme music to the light show. SWEEEET! 2) Looking forward to motor analysis 3) Air susp 4) all thermal management esp differences to Y 5) Overall metals or materials advances 6) Sound deadening / cancellation I predict your Plaid summary episode will have the most views until you get your CT. You guys always find surprises. One of the many many joys of watching your videos. Congratulations on all your well-desrved success. Love you guys!
As someone in the repair industry, I would love to see you guys address collision repairability and whether or not that is taken into account during design and to what degree. I very often run into repairs that could have been made much easier by changes in the design and construction.
@@johnpugat8618 The thought of any manufacturer is generally 'How can we assemble this faster and cheaper?' more than 'How can the customer replace this if it breaks?' I would say. At the end of the day, how much a customer pays after a collision is less of their concern, safety and the ability to assemble quickly is what they work on most.
@@VoxelLoop Having lower repair costs can mean cheaper insurance. The insurance group for a car is always published (in the UK at least), so it can affect sales.
When the frunk was initially removed, we saw a lot of mud/dirt that many commenters thought were coming from the wheel well. Could you comment on that and talk about any design changes needed?
@@FutureSystem738 Not BS, just analyzing the vehicle, and showing it's many shortcomings for such an over priced vehicle. $140,000 with horrible brakes, certainly not up to a standard like Audi or Porsche.....it's a hobby. Easily seen, how getting that cabin filter out, shows no thinking, mine is from inside, in a finished way, like it was designed properly, not having to pull parts of the car apart, for a simple maintenance item, that you know will need be changed regularly.
What an amazing job the camera man does on these videos. Getting that close while not interering with action is very difficult yet you've achieved it brilliantly.
The issue on the Y heat pump is a software bug where conditions can occur where liquid is allowed into the input side of the compressor. This liquid is of course not allowing the designed compression ration and thus causes deflection and metal on metal and resulting damage. The software can be corrected. The resulting damage if already has occurred will need a compressor replacement. This is all probably obvious to you and your team but since you indicated you did not understand it I responded. The images are of course not 'bad machining!'
Heated seats solved the wait for hvac heat. I use the heated seat more and then turn it down as hvac heat becomes available. So quicker heat from an ev is not a selling point for me. Further heat pumps are great until you get to a certain outside temp and then their efficiency starts to tank. It's why houses with heat pumps have a backup heater. It's exactly what happened in texas when it got real cold and a large amount of houses went from their heat pumps to backup resistive heat.
Please also review the vehicle from a mechanics perspective as well. Cost of ownership and maintenance will depend on repair time, effort, access, special tool and skill to perform repairs. What scheduled maintenance is required and what can a owner perform. Are the fasteners SAE or Metric (material type)? Thank you and your team for sharing your knowledge and this video.
American company so I'm guessing inch fasteners though only a guess. I've found that it's a lot harder to get metric size materials and fasteners in bulk, though with the quantities Tesla gets it wouldn't be difficult to get metric made, but I'll still guess inch not metric.
Sandy, -- when I worked for DIGITAL EQUIPMENT CORP 45 yrs ago, the mechnanical engineers referred to getting one part to serve multiple functions as being "design elegance". An example was a single circuit board held widely spaced components, also avoided the expense of a cooling fan by being place in a way that allowed convection cooling, and the third thing was the pc board also provided structural support. The formal word you were gropping for was "elegant".
Hi, I am a refrigeration and AC guy from way back and I dont see why the heat pump has separate lines to the cabin for heating and cooling? I thought it would be a really neat and simple reverse cycle setup like on what you guys call a 'mini-split' system? Could you maybe get deep and technical on this? Hello from New Zealand, I am learning so much from your videos!
This is absolutely fantastic. I'm a machinist by trade and I had worked for mold making shops for about 2 decades. I have some understanding for some of the components, it's great you keep explaining what we are seeing. Thank you Sandy and the team for all the details inside.. Can't wait to pick up my Tesla Pickup truck... I'm 139000th in the long line.
Hi guys from Australia! When you took off the first layer of plastic covers around the ‘frunk’, there was dirt sprayed up from the wheels into the frontal area. What are those holes for and can water and dirt be thrown by the tyres onto the electronics and components that may damage them? Is there a better way of doing what those holes do or would you suggest an owner place a cover over those hole with an air permeable membrane such as a filter? Hope that makes sense. And you are doing a wonderful job. Cheers, mate!
I can't wait to see the motor teardown portion of this series, and specifically your opinion on the new carbon fiber sleeve. From what I remember of the Tesla presentation on this powertrain, the developers found that wrapping the rotor very tightly under tension with a strong material allowed the drive unit to maintain torque output at much higher RPM, thus acheiving higher vehicle speed without the need for a complex gearbox a la Porsche Taycan Turbo.
@@Blox117 afaik, axial flux motors are a couple percent less efficient (like 96% vs 98%). Thats about the efficiency loss you will get per "step" in a gearbox (2-3% per step). And now you would have to compare the weight of the added gearbox vs the weight penalty of the axial flux motor
Occasionally Sandy or Cory use three or four letter abbreviations to describe the function of a part. @20:12 Sandy mentions NVH and says it's Noise Vibration and Harshness. In post production of the video it would be nice when these terms are mentioned, a small text overwrite on the bottom of the screen should say what it means. For example at the bottom of the screen should appear. NVH Noise Vibration and Harshness
Regarding the software update "fix" for the heating issue, my understanding is that the front louvers can freeze open, cooling the radiator too much, and triggering a sensor to disable the compressor. The "fix" is to override the sensor so the heat pump still functions.
Sandy and team are bringing a lot of pride back to being an engineer. It's all about one upsmanship in engineering competition. The neat thing about this engineering competition is that the consumer wins big time because everyone is forced to step up their game. For a while there was so little competition from the complacent big players. It was simply pretend competition at best ... but now that is changing in a big way thanks to Tesla and to Munro and team who are simply pointing out the good (as well as the bad, when it is appropriate)
As always, a great video! The description Cory and Sandy gave of cabin heating on combustion engine vehicles may have come across as incorrect in regards to the relationship between an engine thermostat and cabin heating in a combustion engine vehicle. The thermostat in the cooling system of a combustion engine typically (almost exclusively) controls flow of coolant through the radiator and has no affect on the flow of coolant to or through the cabin heater core. When the engine is running, heat from the cylinders and surrounding areas warms the coolant in the nearby coolant galleries/jackets, which is constantly flowing to the cabin heater core and is un-affected by the open/closed status of the engine thermostat. Come on up to Edmonton during a cold spell in January and we can drive around with the engine thermostat closed almost all day but with plenty of heat in the cabin. So, to clarify, you do NOT have to wait for the engine thermostat to do anything to get heat in the cabin. But, yes you DO have to wait for the engine running to warm up many litres (typically 6 - 16) of coolant fluid, all the fluid except the stuff in the radiator, to enable production of cabin heat.
Just to clarify, as you said, it takes a while for the engine to produce enough heat to actually warm the coolant enough to actually feel like heat. By that time, the coolant temperature will be approaching the thermostat rating. During this time, the engine is being air cooled by the freezing environment that surrounds it. Also remember that 2/3 of the engine produced heat is literally going to waste to heat the environment outside. Nearly all of the heat produced by an electric vehicle is being utilized for passenger heat only, efficient.
You just have to wait for warm to hot water first. Jaguar's from 1974 with climate control have a temp sensor strapped to the heater core return line. Untill the temp reaches 30C the internal fans will not operate. Not like your average car that will just blast you with cold air until the coolant warms up. Jaguars have 3 sensors. In car above glove box, ambient sensor in the Rh fan box and the one mentioned first. That's a great system when it's working 😊. If you dial in 65f and the air outside is 65f it Will just give you the outside air first. Then after assessment it will introduce heating and or air-conditioning to achieve the 65f dialed in. I am a jaguar and Rolls Royce mechanic for the past 40 years. All I want to do to them now is to fit Tesla running gear to them all.
Thanks for pointing this out and saving me the trouble. I’m surprised that Cory and Sandy didn’t know how an ICE car cabin heating system actually works and somehow thought that the thermostat had to open before the cabin heater core would receive any coolant flow. That’s just not how it works in any of the ICE vehicles I’ve worked on.
Also many ICE vehicles especially diesels have become so efficient that they use additional ptc or fuel fired parallel heaters to warm up the cabin, especially in the northern countries. The practice of running the cars idle to warm up like in the US is actually illegal in many countries.
@@Dave-ei7kk while idk for sure how it works at least in my 2007 chevy cobalt the engine has to hit 100F for heat to actually start coming into the cabin so I would assume that it waits at least some
The air filter system is screwed in many places because it needs to be sealed. Same with the frunk. Works as a sealed box. Because of the hepa filter. The old one hadn't screws in to the cabin. Often leaking non filtering air inside
Access the vehicle diagnostics via Toolbox prior to tear down will allow you to pull the vehicle configuration which details vehicle components and suppliers. Keep up the great work!
Most cars are electric steering, many of my VW's have been for quite some time, and it has fully adjustable chassis controls, steering etc, VW golf R 4 WD $45K, this tesla is grossly over priced, and poorly designed 1000 uncontrolled HP, is called JUNK, like 1968 muscle cars...Audi has said, what good is power without CONTROL?
Wow it's certainly engineered well. They logged some hours on a lot of the integration that went into this car. So glad it's you guys doing this for us.
Sandy threw out a disclaimer that he's a Tesla stock holder a few videos ago. I appreciated the transparency. I find him and the rest of the team intuitively honest but clarifying your financial disclosures more regularly might be a helpful for any skeptics
This is like no other on youtube; the level of depth and knowledge really captivates you and make me wish I had studied to be more engineering oriented rather than pure science. Only one point, I gathered from another youtube video that Li Ion battery has some load/discharge problem with ICE starter's induction load and that is why Pb acid battery are still used in ICE vehicles. Not sure how correct is that.Maybe you guys can throw some light at it.
ICE alternators are pretty hideous devices from a modern electronics viewpoint. In practice you would need a very solid input-output-circuit integrated with the 12V lithium battery if you wanted to use it safely for the long term, have minor changes to the cars themselves and possibly even install it retroactively in any old car. Having a battery+electronics module that can handle 200 amps CCA is not easy or cheap. The batteries can handle 200 amps if you just put enough of them in parallel but if you need to convert the 14.5V alternator voltage to a suitable charging voltage and current and then regulate the battery voltage to provide a stable 12.7V during normal use and high enough current during starting, it's going to get interesting. You need quite beefy mosfets to handle this and I wonder if people will buy a $800 battery if they can instead buy a $150 battery every few years.
Guys I would appreciate a lil more elaboration on the heat pump capabilities. I’m following comments in more extreme cold conditions here in MN than you experienced where the system seems much more problematic. My understanding has always been that below a certain temperature there simply isn’t enough heat value to be withdrawn. In the case of residential systems they usually have a supplemental heat strip. I don’t understand how a software adjustment to a valve finds more heat ?
Efficiency level drops when you get really cold, but the system can still be 1:1 at worst energy wise by utilizing putting power into the motors (without moving it) and taking that heat to the whole system to warm the car). The 3:1 benefit is probably when it's 30F still outside or warmer (unsure on exact temp but I know below freezing efficiency drops fast).
I'm no expert on this but I have read that the issue is both software and hardware related. the air intake flap can freeze open or partially open in the air intake area and that triggers an error code that causes the heat pump to shut down. The software fix would presumable override this but ultimately I think both sides of the problem may need to be addressed.
also, people have to remove snow from the Active Grill shutters, they were letting Super cold air into the Heat Pump system , rather than using the Warmer cabin air. People can FIX the heat pump, themselves by cleaning the Shutters or parking in a Garage. you can also PRE heat the car in Winter, while home charging. I only charge to 95%, then park in Garage at night, then before I have my coffee, plug in the car, charge to 100% and pre heat everything.
I think the system is also able to extract waste heat from the motors and battery to supplement the pump but that would mean waiting for those to get some heat in them to extract.
I’m finding all of these comments and conversations very illuminating. I understand how the heat pump gained access to heat from the battery pack and the motor cooling in the winter time! One thing that I’ll offer is considering the relocation of the inlet and the electric shutters that would seem very flimsy. In an earlier life I owned a Citroën DS21. It’s air intake was horizontal just behind the license plate which formed an air wall and suction that was immediately directed into the opening which was protected with a large opening wire mesh to prevent large objects from traveling to the vertical radiator. Seems feasible that the shutters could be mounted horizontally there. Otherwise, a low grill in our part of the country is nothing more than a snow plow blade and would require constant attention. Not my definition of a luxury segment auto.
Looking at Sandys's other teardowns it seems that Teslas are pretty easy to take apart in comparison to other OEMs. For example, in the Mach E teardown, even the frunk is hard to take apart if I remember correctly. Sandy was complaining about too many nuts and bolts than necessary. In the Plaid and Y it was clipped on covers(if it isn't broken then it is easier than bolts) Then the actual frunk tub has like 3-4 nuts. I remember correctly you can't even open the hood in some Greman cars. Now if we are talking about parts that is a different story.
As you can see in the Video, the vent could use a better design. The Cabin Filter, should be easily and tooless accessible. All filters and fluids, tooless and enough room to get at and replace.
@@kavink2514 wrong!!!! It’s totally the other way around, Tesla is integrating way too much stuffs which are going to need a total replacement instead of repair, the structural battery is another clear example, people can easily open an old tesla battery pack and reuse the modules for Ev conversions or energy storage.
@@alanmay7929 It would helpful if Sandy & Co. would note the pro & cons of a part or assembly. Such things as cost savings, weight savings, ease of assembly, and ease of repair can conflict as engineering goals.
Would like to see heat pump dissected and any theories you have about its failures for some in cold. Also whether those garbled images of the heat pump are damage from use or just odd manufacturering.
One error on Sandys part is that ICE cars doesn´t create heat (for the cabin) until the thermostat has opened. Literally no car in history is made that way. It would have been stupid. The heater core gets the engines heat directly regardless of the thermostat. So all waste heat from the engine is instantly available to the heater core as soon as possible. One funny thing to challenge a Tesla. The old Beetle has it´s heat exchangers directly on the exhaust manifolds which gets instantly hot when you start. If you start a Beetle in -10C it takes about 5 seconds until you burn your hands on the vents on the floor. The Beetle had other problems, but when ok, it had the quickest heater of them all.
Yeah. ALL ICE cars run with the engine hotter than hell peeing energy out of the radiator 5 minutes after starting for the entire drive, but burning dinosaur juice at 5% efficiency in the first 5 minutes unable to heat a matchbox.
@Michael Heimbrand: Maybe you should read @Dan Oberste's reply to @Jim H that his 92 Jeep didn't heat the cabin until the thermostat opened up. Jus' sayin'.
@@morrisg What someone has told someone is irrelevant. Heaters are on the engine side of the thermostat, not in the radiator circuit. It´s basic knowledge.
@Michael Heimbrand Are you really sure about your "old Beetle story"? As I remember it, the old Beetles didn't even have a proper heating system. Remember, engine is in the back, seats up front. As I recall, all of Beetles running in cold climates had to be fitted with gasoline driven heaters made by Eberspächer which of course, produced super hot air in a minute or so. The problem however, was that it easily got too hot so the driver shuts it off and then the cabin gets cold within a minute. Worthless design if you ask me. I know because a friend had a Beetle 1966. Nice looking car but horrible in so many ways :-)
@@GurgelKoff Yep. I know how rubbish 99.5% of them was. I had a lot of them in the early 90´s. And mostly it was a pain in the Swedish winter. But I had one with good heat exchangers, hoses etc. But the Eberspächer was dead. So it was only engine heat. Of course it wasn´t that effective with demisting the windshield. But I was talking about the outlets under the rear seat. It really took only seconds after start for the hot air to become painful on the hands. But it was only that car. My other beetles were mostly a story of sitting in rush hour traffic and scraping ice from the inside of the windshield. But still. When perfect, I bet it will beat any heat pump in a drag race from cold to hot air coming out.
Hi first lots... and lots... and lots............... of thanks for everything you do and have done so far. And secondly, I was indeed interested in seeing the process of disassembly and removal(tear down) itself and not just after the fact, as was done with the small battery.(Even live) In addition also a little more explanation about but other manufacturers produce (in terms of vehicle body) and what the apparent difference is in terms of production of strength, and durability, and weight. And maybe, now that you lower the suspension system to understand if the body floor is necessary since there is a stable structure form the battery. Best channel. Thank you for your great videos!
Thanks for the video, looking good! Mostly interested in the new battery modules and in the new inverters layout! And the front motor... Is it an ac induction motor or a brushless dc ipm?
NVH complaints are a common complaint by many journalists and in social media. I don't mind hearing some sounds to better connect with the car, road, and goings on around me. I'm pretty sure emergency services would like us to hear their sirens from a good distance. I imagine that having no roof liner is a big problem. I wonder how well the newly-released noise cancellation works. Thanks for your thoughts on this Sandy and Cory. Would love to learn more about NVH as you go through the tear down please.
Really interested to see if there is any measured improvement in use and quality of insulating materials, particularly along the firewall, front fenders, doors and hatch to reduce NVH in the cabin.
we have seen NEW NVH in the Teardown video, and more to come. Tesla also has Insulation glass, and ACTIVE noise cancelling in PLAID, was pushed in Xmas Update.
I had an LFP starter battery on a 1200cc BMW boxer twin motorbike. It weighed 0.8kg but worked a treat and actually spun the engine better than the 5kg high performance Lead acid that it replaced. However internal resistance rises in cold weather. It needed one or two "failed" start attempts to warm the cells and then it worked fine. Unfortunately it would do the same again if I stalled the bike. It needed a heater pad with insulation. It also needed a small backup battery to maintain the electronics (clock settings etc) when the cold main battery dropped its voltage too low.
Sandy: "I don`t know how I can improve that..." Tesla Team: "Hold my 3D printer"... 🤣🤣🤣 Sandy is having a blast analyzing every inch of the car. Awesome content guys ! Keep going.
I'm not sure why. That would be the shortest video they ever made. Not so much different to other cars with electric power steering. The clever stuff is in computer and software and how it uses information from cameras an sensors. The physical aspect of auto steering is the easy bit!
I'm sure to watch this entire series, just wanted to second Sandy's observation about the quick heating of EV's that use heat pumps! Not only can you preheat or precool your car using an app, but if you're waiting somewhere, or (in my case) on a ferry trip or lineup, you can just keep your cabin at the desired temperature even when the car is 'off'. Other advantages you'll enjoy will be the lack of steamed-up windows as you wait somewhere, and the fact that you don't have to waste huge amounts of energy by running your ICE engine just to condition the cabin.
Great overview as always! Once you are under the car, maybe you could run through adjustability of rear and front suspensions for the Track use? As well brakes. Have noticed already rear of the car has widely adjustable toe/camber arms, which could be really useful to set up this car for track. Intersting what can be adjusted there more and how much. Front camber is so far biggest issue dor us while building model 3 for Nürburgring, and seems it will need custom top arms. How is it in Plaid front? Front brake calipers looks like simple of shelf racing calipers from ap racing or brembo, and mounting to hub through caliper is mainly used on racing calipers or track-targeted cars like Clio Rs200 mk3. Thanks again! And if interested - we are building model 3 race car with full racing cage, bucket seats and so on for the Nurburgring. Few videos already in our channel. Looking forward!
Here we have a largely redesigned car that looks virtually the same as the one it replaces. It reminds me of the Porsche 911, which never departed from the original vision but has gradually morphed to stay current, and is one of the most beautiful cars on the road, IMO.
@Bellissima2k no such thing...the quality differences are glaringly obvious..so is the performance....straight line acceleration is hardly the test of a car...its not 1962 ya know
I get your point. The 911 design was basically perfect, the aero was so far ahead. And the same goes with Tesla. Perfect design that just tweaks things. Just Tesla does it on a crazy scale
Sandy made me do quickie research again: Positive Temperature Coefficient heaters PTC. Internal material resistance proportional to ambient temperature. You guys are awesome! Thank You
Seeing a notification of a new video from you guys is like Christmas morning. I just love the detailed explanation of how what and why things are done, benchmarking against other competitors along with critiquing the quality. Sandy, my Dad is a retired Tool maker with most of his years being in the Automotive Feild. It makes me smile Listening to your comments sometimes, it’s like listening to my Dad. I guess it’s a Tool maker thing.
why ? It's junky. too slow, too heavy, uses over 100 kw pack to get LESS miles, 2021 least Efficient vehicle ever tested by EDMONDS. and way too Expensive, RIVIAN won't be able to SCALE to Economy.
@@markplott4820 I thought car&driver or motor trend just posted their 10 least efficient ev on sale today recently. And the Audi e tron s tri motor has even worse mpge than the r1t? Then the hummev in last place at just 56mpge. Which isn't bad compared to 6-10mpg for the ice versions.😀
Might that scrolling/scoring on the internal of that spiral to help mix the glycol as it moves past, not unlike a good inlet port on an inlet manifold, to encourage mixing of fuel /air? Also it might help slower fluid where it contacts the surface machining and because it slows the fluid a tad allows more time for heat transference?
Thanks guys, a great way to start my morning! I am a new MS LR owner and would love for you guys to explore the suspension system in detail to help me understand better the various suspension options on the touch screen.
I bought a supplementary PTC heater for my '02 Prius, since the ICE is so efficient that it takes a long time to start providing serious heat. While I'm scraping the windows, the PTC will run and start to heat the cabin. Once the ICE warms up, I can do two things: I can unplug the PTC heater from the 12-volt outlet, or I can shut the main heater off, let the car go into electric mode, and maintain cabin temp using the PTC heater. I am considering modifying the supplementary heater with an off-the-shelf computer fan, because the stock fan is weak, rattly, and destroys the peace and quiet of electric mode.
Since you asked: I am most interested in hearing your thoughts on whether a part is likely to "trickle down" to cheaper models or when a part is clearly an experiment that is only affordable in the expensive Model S Plaid.
Guys - can you touch on whether or not the HV cables for the rear motor are protected enough? Some have said that they don't have enough protection from road damage or object strikes...
Sandy Munro have my greatest respect, that’s why I got into this channel !! But clearly the younger generation is taking over, just more knowledgeable and hungry. Nothing bad, just more on the “beat” Love this channel.
Question to Cory, It looked like you had fun racing the Plaid Model S. I will be receiving my Model 3 this coming March. Do you have any suggestions or have you talked to other Tesla owners who have raced the car. I was a member of SCCA and raced a ICE car like a Datsun 510 full race B-Sedan. So much fun for two years as I modified the car to the point that it not only handled better but was so much more stable at high speeds. Just lowering the front end of car created this amazing stability at 140 mph. Then I changed the castor to degrees and now the car handled great at high speed with less wandering. So what experience do you now have racing the Tesla Model S Plaid. Here is something we did when approaching a high speed turn on my Datsun 510. I would do all my breaking at the straight part of the track then feather the brakes less aggressively entering the turn. To purpose was to force the front end of the car down so that it put more pressure on the front tires. This braking in the turn, widen the surface area of the tires thus keep the car from sliding away. So did you try this with the Model S Plaid. Another example of how Brakes are so important to racing. I live in SF, Ca. We have plenty of hills so to keep the car from being like an airplane and airborne into the air, I would put a little brake just before I approach another hill forcing the nose of the car to aim down and creating a more controllable ride thus more tire on the pavement and less time in the air. I bring this up cause I see to many people with nice cars but don’t use them to their optimum. I road raced on the tracks like Sears Point and Laguna Sega. After 3.5 years, I learned winner are drivers that know how to drive and understand the science of physic. It would be fun to bring in a race car driver and point out the difference between Tesla and other EVs and what cars are the best. It’s one thing to learn about the engineering, but what about why one EV is better than another EV. We would be talking about wheel weights of each wheel and compare to a car like a Lucid or any other EVs. When I adjusted my car to create the best weight on my four tires, I used spacers by the shock tower to balance the car. A balance car makes better left and right turns. Thanks. Bill Woo
Dai yoshiro has a highly modified pikes peak model 3 racer. He has posted some interesting videos on racing it right here on UA-cam. Also Randy pobst ran the unplugged performance m3 up pikes peak in 2020. Some good videos of that from his perspective on here to.
17:50 From what I've read online, it's because the ICE needs loads of current for a cold startup CCA and the li-ion batteries can't provide that much power repeatedly. For an EV, these are the best.
Interesting to see the small compact low voltage (12V) battery. One would expect this to be expensive ($200-$500) but with a long anticipated life (>10 years) it makes economic sense and of course takes up a lot less room under the hood.
Unfortunately those batteries are super expensive at least $1000+ BMW has been using them in their cars for years too ua-cam.com/video/HrRyv9TMHEA/v-deo.html those batteries can also be very expensive to change when they fails.
@@alanmay7929 Ummm, not what the parts website says. Those BMW batteries are different, and quite bigger than the Plaid's. I think the Plaid 12V are about $200.
Sandy is being a bit of a moron there... That little lithium battery would be useless in an ICE vehicle since it would never have enough cold cranking amps to turn-over a medium-sized ICE engine at -30C. Lots of aftermarket companies make li-ion lead-acid replacements, but they are much larger than that tiny battery from the Plaid, which is really only there for accessory 12V loads.
So, getting the air intake out with battery in place may have been possible with a good firm yank, looks like the lower half of the air box is structure for the two feet. I really like you two looking at things and bouncing ideas back and forth!
Probably knowing where the hooks are on that shroud would give a Tesla tech the confidence to know how and how much "yank" is needed to get it loose. Whenever working with plastic, the fear of breaking something makes one more timid than is sometimes necessary.
First of all thanks for the videos and keep up the good work. I think you should dive into this heat pump problem more. My Model S Plaid is going in on the 14th to get a new heat pump. I saw on FB that others were having the same problem with the HP. Mine is a June built 21 so one of the very first. This heat pump problem seems to be sneaking its way to the Model S as well. I just got my car back from being in the SC for 45 days waiting on a new computer. Picked up car after hours (3 1/2 hour drive each way) On a Friday and it was just below freezing. I thought it was an actuator behind the dash and made another appointment. Went to open the frunk a couple days later and heard the loud noise by the LF wheel so I popped the front trunk and removed the panel and sure enough it was the heat pump failing. Clicking so loud and hard it can be felt in the steering wheel aka yoke and just touching the dash. I think once the noise happens then the damage has already started. I believe they are replacing mine as they know technically my car is a lemon by the law of the state I live in (In service longer than 30 days in my state). We shall see
What a great episode! Delighted to see more information on the thermal management system. Are you going to do any follow up on the cause of the erosion on the scroll? What material is used to manufacture the scrolls?
@@imconsequetau5275 I'd be willing to bet the scroll is pumping liquid is some situations and that's what's causing the erosion. Scrolls are generally spring mounted and can pump an uncompressible liquid but not good for them. I don't see a suction accumulator so wouldn't be surprised that liquid refrigerant is finding its way to the compressor. I'll also bet there's no reversing valve in the refrigerant system and therefore it's not really a heat pump.
@@virgilwhetsel5289 If the "heat pump" is simply pumping heat in a single direction between two regions of the same coolant, then the octo-valve can still fully control heat flow direction. The octo-valve *is* the reversing valve. I don't really care about the simplicity of the "heat pump" valves or resulting terminology and categorization, but omitting a suction accumulator is significant.
@@imconsequetau5275 Use of the term "heat pump" indicates a refrigeration machine that includes a reversing valve and the term should not be used otherwise. It's confusing and distracting.
When done, can you tell us the total length of wiring in the car and the amount of clips, hoses, coolant weight like you did when you compared the Model Y to the Mach E? I wondered if they could reduce even one more clip on the coolant line.
THANK YOU Mr. Munro! I'm Framing a screen shot of you holding the link to my video!!! GRAZIE!
Huge fan of what you guys do. One of the only real negative comments that I've been seeing consistently about the Model S Plaid is the brakes being not strong enough for a vehicle as fast as it is. Since you asked what we would like to see in detail on the vehicle, I'd love to hear you guys go over the braking system on the car, whether you also found the brakes lacking when driving it on the track, and a comparison between what the plaid uses in its braking system and what is found on other high performance vehicles. Thanks!
Think of it this way, the car is expensive to some of us, but it is a bargain for being as good as a 2M dollar super car. Ceramic brakes is optional for the Plaid and cost $20k from Tesla. Tesla can include the brakes, charge people 20k more and it’ll still be a bargain, but they deemed that most people won’t be driving on a race track all day. I don’t see this decision as a negative.
@@AudiTTQuattro2003 Car and Driver review said the brakes SUCK a vehicle with 1000HP and it can't stop at speeds, advertised it can do, at 161 mph, car and driver said it's horrible steering, wanders, UNSTABLE, and it doesn't stop. Read the review, $140,000 POS, spend $140K on an audi RS series or a Porsche, rock solid at same speeds, cus it's properly designed, with better parts, My $45K VW golf r can do 155mph and is rock steady and it STOPS the Mk 8 new version VW golf r did 171 MPH on the autobahn, stable, quiet, like it was nothing, and it stops perfectly from such speeds. tesla is a goof
@@lanzer22 It's not as good as a $2 million super car, get real
@@cengeb Anyone can see from who your subbed too your a ford & VW fan boy, and a Tesla hater... Try and hide it a little better next time, when spinning BS...
@@EspirituOtaku Ford, not me, if it ain't GERMAN, it ain't a car
Munro offers an engineering viewpoint that is refreshingly objective. Thank you.
That rear subframe is incredibly elegant and light, wait until you see the top of it. Check the passenger rear air spring harness for tight proximity to the rear tire. Notice how the rear motors on the Plaid have an almost polished finish (to eliminate cracking) compared to the old ones. The rear motor in the Plaid was taken directly from the (yet to be built) Tesla Roadster. Also cut the drive unit oil filters open to see how much (if any) carbon fiber wore off of the rotors. Unfortunately no steer by wire yet as the system apparently couldn't pass NVH testing.
It's a pleasure to watch you guys becoming more and more comfortable with the camera. ;)
Great show, thanks a lot!
Glad you enjoy it!
@@MunroLive agreed, you guys are doing a great job and I enjoy each new episode.
We need to do something about the girls sites intruding on the comments.
@@danubiosalas4231 Just keep reporting them. Not much they can do.
@@MunroLive can y'all please check to see if there's an led light behind the narrow glass on the dashboard that flows into the door?
If only I was about 20 years younger I would volunteer to work at Munro just to part of all this super interesting engineering environment. Keep up the great videos guys!
I was thinking of the same thing.
Age is just a number. Do it!
Same here.
2 places on the list (guess)
I doubt they want a bunch of spectators around.
Munro is hiring, so submit your resume!
One of the best features of the Model Y climate system is that you can control it with software (on the screen or with the app). I can start the climate system from the house before I go out to the car. They also just added a scheduled charging feature where I can tell the car to charge overnight and be ready at a certain time (like 7:00 AM). This includes turning on the climate system so it is ready at 7:00 AM as well. Warm car + full battery = great way to start your day.
The other great feature is Dog Mode. Dogs just love to go for a drive but if it is too hot or too cold to leave the dog in the car then they have to stay home. But with Dog Mode you can leave the climate system running and the dog safely in the car when you go into the store. The monitor says "Don't worry, my owner will be right back. It's 72 degrees inside" Really nice!
I am so excited to use this on my Model Y when it arrives. My garage is not heated but I can't start my ICE vehicles inside due to the CO2. No more cold car for the first 10 minutes of my 12 minute drive! Also way fewer times pumping gas when its -15F like I have now done 3 times in the past month. Might not be the road tripper in the frozen tundra but as a daily driver its going to be great.
Remote start is a feature even a cheap honda has, tesla is $140K, searching for the spot on a screen to change temp is DUMB
@@cengeb You're REALLY not gonna want to remote start an ICE vehicle if it's in an enclosed space. Also, the cheapest Tesla (less than $40K) has remote start, not just the expensive ones.
How far away from the car do you have to be for remote start to work on a Honda? With a Tesla, you can do it wherever you are if both you and the car can connect to the Internet.
@@RichTeer If the car is in an enclosed space, it won't need to be warmed up!!! My neighbor starts their Honda from inside the house, car is out on the driveway, startles me every time..there is no tesla under $40K. and i don't want my car connected to the internet, stuff is tracked quite well now, with cell phones, cameras, etc. The biggest connection is ME driving my VW Golf R, connected to DRIVING it, manual stick of course...
@@oof_Dad the car’s HVAC works really fast also. Times when I sat in my car and though “brrrrr” and in a minute I forgot that I was cold. It’s not often praised as a feature
thank you for the teardown!
Earlier models had 2 PTC heaters: one for coolant for the battery, another was a standalone HV PTC air heater for the cabin .
Earlier model 3, one PTC air heater just for the cabin, and used the heat from INV/MOT to heat the coolant that was pumped to heat the battery. (2018-2021 M3 AWD) Approximately ~2.5kW loss from the front induction motor/system to the coolant everytime they wanted to precondition or warm up the battery.
When I still had my ICE vehicle I used to have a small electric heater in the car while car was in the driveway in the cold. Plugged it in before I had breakfast (there was a socket outside the house). Car was nice, warm and ice-free when drove off. The heat from the electric heater remained in the car until the engine became warm after which I use the heater from the car. This is better for the environment and better for the engine.
I was watching another video and the notification for Munro popped up needless to say I’m here. Thanks Sandy and all the gang the work you guys do is appreciated.
I’m the same way when I get a Munro Live notification. Especially if it’s regarding the refreshed Tesla flagship vehicle.
Same here, I open my UA-cam after a few days of hectic work, and go to my subscriptions. oh, S#!t Sandy working on his Plaid!! First thing to watch.
The split power distribution setup is to allow for diverse feeds for safety critical loads like the EPS, auto pilot etc.
Every episode is like an advent Christmas calendar... you never know what new wonderful thing will be revealed. Every new upload is a much watch and brings geeky joy!
YES it is 😀
You guys are the reason why i'm at university right now! I'll always be grateful, i love what you are doing!
I like the comparasion you make between MY/3 and the Plaid. Explaining what has changed and understanding why is by far the most interesting part.
You guys rock. I love your channel and your entire purpose. Thank you for making things transparent and understandable
Thanks so much!
No, you do not have to wait for the thermostat on an ICE. The coolant flows through the engine and into the heater core in the cabin. it always flow there. So for each degree the colant goes up, another degree is going up in the heater core. The thermostat only opens to the radiator in the front, if needed. That is why the temperature is gradually going up in the cabin air outlet.
That's interesting, thanks for the clear explanation. A few other similar comments, but not as clearly stated. I do always remember though how much I loved that my LS1 camaro with the aluminum engine block always got cabin heat so quickly, always attributed it to the aluminum block heating up so much quicker than if iron.
True ... but the issue of how long it takes to warm the car can be taken without that. There's no comparison, believe me.
This is true, the heater core gets coolant directly from the back of cylinder heads. The EV heat pump is still much faster at heating the cabin than an average ICE engine.
@@towlie911 That is why there are auxilliry heaters in ICE cars too today. To help heat, and to preheat. Remember that the battery also needs heating in a BEV. Start a Tesla with a battery that is -20 or -30 C and see how long it takes for it to heat up.....
SPECIAL THANKS TO THE VIDEO GUY! Your work is under appreciated!
Sandy and Cory you are so likeable, it is always fun to watch and learn! Keep it up!
Wow, thank you!
Love love love these, so informative. And so glad to have another Tesla series, the 3 and Y were my hands down favorite YT series of 2020/2021. One side note, I get a slight negative vibe from Cory, the way he corrects Sandy, interrupts him, or tries to steer him. Sort of like "ok grandpa, you're forgetting again, let me help you". Sandy is great, have a slice of humble pie Cory and let him lead.
Castings of front and rear cradle looks interesting, especialy rear cradly. Love to see a video about this! Thank you for your great videos!
Model S/X castings are similar to Megacasting used by model Y, but smaller, and mod S/X only have front Corner casting, unlike Total front casting in model Y.
should also be similar material.
And when it's in an accident, not repairable, car is TOTALED, insurance costs will make this stuff just useless
@@cengeb Wow you're an extremely motivated Tesla troll lol. I hope they are paying you well, whoever they are, because if you're doing this much dedicated trolling on your own time then wow...
Musk, created paypal, awesome, led Tesla to be more valuable than all other car companies in the world combined, made spacex the greatest space launch company in the world even over all governments, boring company, neuralink...It's amazing to me that people are so focused on hate instead of greatness that they troll like this.
@@jaya8352 Musk did it with YOUR taxes, lots of gov't subsidiary, and without NASA, a gov't project, there is no space X, he did nothing, that wasn't there already, Nothing. The mkt cap of Tesla is unsustainable, stay put for the big CRASH, I guess you don't remember Enron, MCI Worldcom, Bernie Madoff, and on and on, or the lady with the fake blood test scam Theron...wake up..GERMANY will teach Musk how a car factory is run, he has skirted lots of regulations, which he ain't gonna get away with in Europe...He also pays his people 20% LESS than other auto makers employees in Germany, tesla won't survive doing that to employees. Look it up.
@First Last Not proven, you just assume, it's a dumb design, when Tesla become uninsurable cus of high costs of no repair, the car will fade away, it's impractical, and a poor design, leave car making to car companies....tesla is a hobby
Loving the licence plate. Looking forward to all of this series as it unfolds.
Team Munro is exactly what this world needs more of, straight forward, direct, factual information without any of the bias that is typically inserted. I truly hope that you find all of the help you need to be able to perform more of this essential content! If only I were younger and closer to your location…
They have plenty of bias, but it is based on engineering
.
Please show us the front lower control arms and knuckles while turning the steering wheel from lock to lock. There's a lot more complexity in those knuckles than a typical car, and we'd love to see how they move with those double lower joints.
I have to admit, I am extremely impressed with the scope of knowledge that Cory has in not only these vehicles, but obviously a variety of others, in order to be able to not be confused by the array of new designs you’re finding in these Tesla‘s. I thought I saw in one of your videos what his previous work history or background was, but it would be interesting to know how he came about such an impressive understanding of what he’s doing. Thanks for a great video again
I also love multiple use parts. You should see an 80s Honda Accord power steering pump/fuel pump and speedo drive assemble in a few ounce pump bolted into the top of the transmission. That blew my mind. Using the transmission to drive all 3 and using the trans fluid. So many parts saved here.
At 19:33 when Corey is holding the cable for the DC to DC converter there is a square of silver tape on the on the structure behind. There is a matching one on the other side behind Sandy. What’s that tape for?
My favorite and objective no BS engineering channel...
Question regarding removal of the air intake: 16:06 "here is what was causing it, we had these hooks, those hooks are pretty aggressive we couldn't get it out". If you had know about these hooks, would you have been able to remove the air intake, without removing the small batteri first?
No, the interior air filter is in fact replaced from inside the cabin and not from under the front of the car. They'll correct that later I think
I'd like to see some in-depth coverage of the ADAS, info-tainment and safety/security components. 1) Where are the antennas (BT, wifi and cellular)? 2) What are the cameras' resolutions and FoV? 3) Any word on FLIR or IR cameras getting added to these cars? 4) Do the rear doors have an emergency release like the fronts? 5) How does AP/FSD interact with the steering assembly? 6) What are specs on the display screens? 7) What about V2L (vehicle-to-load) capability. Great job! Keep up the good work. Nobody else is fine-toothing these cars like Munro.
Some of that is software and I don't think they even touch software.
Really enjoying the series so far. Can definitely tell this is a more structured series than the Model Y teardown. The camera work was really great too, showing us Sandy and Cory discussing stuff without missing out any of the gorgeous mechanical stuff.
from what I heard Sandy, the main reason why smaller lithium battery aren`t use in gas powered car is because the CCA (Cold Crank Amp) isn't enough to start a gas powered engine in cold climate. Nowadays with better chemistry I can't say if it`s still a valid reason, but from what I can tell the price is also still not there compare to traditional lead acid battery, a car lithium battery seems to cost 5x to 6x when having similar CCA specs while advertising only a 2 to 3 times longer lifespan.
Awesome video like always, will you considere looking again at a tesla model Y from Giga Texas that will feature the 4680 cells with structural battery pack?
I REALLY want to understand the air suspension, specifically how you think it might be both similar and different from Cybertruck as well as compared to other air suspensions (both OEM and aftermarket if there’s a difference). I also am very curious how the dampening/rebound control and feel compare to high quality hydraulic suspensions. Lastly, though it’s more about Cybertruck, how do you see wheel travel being effected by air suspension. I’ve read that one reason air suspension isn’t as popular for off-road is around wheel travel characteristics.
@Cybertruck Truck Guy: you should take a look at the air suspension on the Ram trucks in production now. I believe they use a Continental supplier system and people who own those trucks love them. Tesla might just purchase an off the shelf system like the Continental if it meets their needs. Of course, no way to know what Tesla will do right now.
There's a ton of off-roading videos on the Land Rover Defender, which has air suspension.
That air filter is impressive. It looks like an air filter for a 4 ton home unit.
Bioweapon Defense Mode needs this filter size.
Yes, the filter is impressive but I can't believe how difficult it is to change.
I like the anticipation and struggle of Cory removing parts. Anyone who used to wrench can appreciate the struggle.
There is always technique to disassembly.
Anyone who has worked with high performance aircraft understands the part you need to remove has had the rest of the aircraft built around it. Once the sequence is figured out, the next one is a piece of cake. Just like the battery removal.
Right, there's always that one more screw that you didn't see haha.
@@stephencampbell9095 that is the best comment so far.
If the details like that that let you know whether a car has been worked on or not before. When you find those hard to get to nuts and bolts not reinstalled. Luckily for my customers my OCD tendencies compels me to reinstall those annoying fasteners
1) I keep meaning to say I LOVE that you programmed your theme music to the light show. SWEEEET!
2) Looking forward to motor analysis
3) Air susp
4) all thermal management esp differences to Y
5) Overall metals or materials advances
6) Sound deadening / cancellation
I predict your Plaid summary episode will have the most views until you get your CT. You guys always find surprises. One of the many many joys of watching your videos. Congratulations on all your well-desrved success. Love you guys!
As someone in the repair industry, I would love to see you guys address collision repairability and whether or not that is taken into account during design and to what degree. I very often run into repairs that could have been made much easier by changes in the design and construction.
see - Tesla China - Go Giga , Tesla Service, also Safety video. Tesla glass USA video is good too.
I do repair too and we always say "what were those Engineers thinking when they designed this?"
@@johnpugat8618 The thought of any manufacturer is generally 'How can we assemble this faster and cheaper?' more than 'How can the customer replace this if it breaks?' I would say.
At the end of the day, how much a customer pays after a collision is less of their concern, safety and the ability to assemble quickly is what they work on most.
@@VoxelLoop Having lower repair costs can mean cheaper insurance. The insurance group for a car is always published (in the UK at least), so it can affect sales.
These designed for write-offs.
Absolutely wonderful to see the detail of this vehicle. Thanks so much.
When the frunk was initially removed, we saw a lot of mud/dirt that many commenters thought were coming from the wheel well. Could you comment on that and talk about any design changes needed?
I agree, they should comment because some people are making much ado about that.
@@TheEvilmooseofdoom looks like horrible designs, all that crap up in everywhere, poor designs, simple, tesla is still practicing
@@cengeb You’re proving over and over with your comments that you’re a Tesla hater. Go and practice your BS elsewhere.
@@FutureSystem738 Not BS, just analyzing the vehicle, and showing it's many shortcomings for such an over priced vehicle. $140,000 with horrible brakes, certainly not up to a standard like Audi or Porsche.....it's a hobby. Easily seen, how getting that cabin filter out, shows no thinking, mine is from inside, in a finished way, like it was designed properly, not having to pull parts of the car apart, for a simple maintenance item, that you know will need be changed regularly.
@@cengeb Porsche? Lol. Might as well buy a steam engine.
Phillip.
What an amazing job the camera man does on these videos. Getting that close while not interering with action is very difficult yet you've achieved it brilliantly.
The issue on the Y heat pump is a software bug where conditions can occur where liquid is allowed into the input side of the compressor. This liquid is of course not allowing the designed compression ration and thus causes deflection and metal on metal and resulting damage. The software can be corrected. The resulting damage if already has occurred will need a compressor replacement. This is all probably obvious to you and your team but since you indicated you did not understand it I responded. The images are of course not 'bad machining!'
Severe vibration is also a result of liquid on the input where gas is expected.
@@AudiTTQuattro2003 yes refrigerant.
Heated seats solved the wait for hvac heat. I use the heated seat more and then turn it down as hvac heat becomes available. So quicker heat from an ev is not a selling point for me. Further heat pumps are great until you get to a certain outside temp and then their efficiency starts to tank. It's why houses with heat pumps have a backup heater. It's exactly what happened in texas when it got real cold and a large amount of houses went from their heat pumps to backup resistive heat.
Please also review the vehicle from a mechanics perspective as well.
Cost of ownership and maintenance will depend on repair time, effort, access, special tool and skill to perform repairs.
What scheduled maintenance is required and what can a owner perform.
Are the fasteners SAE or Metric (material type)?
Thank you and your team for sharing your knowledge and this video.
American company so I'm guessing inch fasteners though only a guess. I've found that it's a lot harder to get metric size materials and fasteners in bulk, though with the quantities Tesla gets it wouldn't be difficult to get metric made, but I'll still guess inch not metric.
Sandy, -- when I worked for DIGITAL EQUIPMENT CORP 45 yrs ago, the mechnanical engineers referred to getting one part to serve multiple functions as being "design elegance". An example was a single circuit board held widely spaced components, also avoided the expense of a cooling fan by being place in a way that allowed convection cooling, and the third thing was the pc board also provided structural support.
The formal word you were gropping for was "elegant".
Hi, I am a refrigeration and AC guy from way back and I dont see why the heat pump has separate lines to the cabin for heating and cooling? I thought it would be a really neat and simple reverse cycle setup like on what you guys call a 'mini-split' system? Could you maybe get deep and technical on this? Hello from New Zealand, I am learning so much from your videos!
This is absolutely fantastic. I'm a machinist by trade and I had worked for mold making shops for about 2 decades. I have some understanding for some of the components, it's great you keep explaining what we are seeing.
Thank you Sandy and the team for all the details inside..
Can't wait to pick up my Tesla Pickup truck... I'm 139000th in the long line.
Hi guys from Australia! When you took off the first layer of plastic covers around the ‘frunk’, there was dirt sprayed up from the wheels into the frontal area. What are those holes for and can water and dirt be thrown by the tyres onto the electronics and components that may damage them? Is there a better way of doing what those holes do or would you suggest an owner place a cover over those hole with an air permeable membrane such as a filter? Hope that makes sense. And you are doing a wonderful job. Cheers, mate!
I’m not a car guy, but I can watch these series with ease & fascination. Thank you, guys, for doing this!
I can't wait to see the motor teardown portion of this series, and specifically your opinion on the new carbon fiber sleeve. From what I remember of the Tesla presentation on this powertrain, the developers found that wrapping the rotor very tightly under tension with a strong material allowed the drive unit to maintain torque output at much higher RPM, thus acheiving higher vehicle speed without the need for a complex gearbox a la Porsche Taycan Turbo.
I wonder how they will disassemble the carbon fiber sleeve without it blowing up.
less gears is always better. they should consider axial flux motor design instead, more torque per unit volume
@@Blox117 is that what washing machine brushless motors look like?
@@Blox117 afaik, axial flux motors are a couple percent less efficient (like 96% vs 98%). Thats about the efficiency loss you will get per "step" in a gearbox (2-3% per step). And now you would have to compare the weight of the added gearbox vs the weight penalty of the axial flux motor
@@pcysneros good point lol
Occasionally Sandy or Cory use three or four letter abbreviations to describe the function of a part. @20:12 Sandy mentions NVH and says it's Noise Vibration and Harshness. In post production of the video it would be nice when these terms are mentioned, a small text overwrite on the bottom of the screen should say what it means. For example at the bottom of the screen should appear.
NVH Noise Vibration and Harshness
The previous S and X rear suspension quite often break the lower control arm at low speed turns. Do you see any major design changes in this area?
2022 mod S/X using case rear end and suspension is more Robust, Tesla even sells $20k carbon-creamic brake f/21" Performance models.
i dont understand most of the components you guys are talking about but somehow like watching these teardowns.
Regarding the software update "fix" for the heating issue, my understanding is that the front louvers can freeze open, cooling the radiator too much, and triggering a sensor to disable the compressor. The "fix" is to override the sensor so the heat pump still functions.
Yes, people still need to go out, and clear this Active Shutters, insuring snow free.
@@AudiTTQuattro2003 Yes that's why I put "fix" in quotes, it's really a temporary workaround until they come up with a fix for the louver system.
That is the understanding I have.
Sandy and team are bringing a lot of pride back to being an engineer. It's all about one upsmanship in engineering competition. The neat thing about this engineering competition is that the consumer wins big time because everyone is forced to step up their game. For a while there was so little competition from the complacent big players. It was simply pretend competition at best ... but now that is changing in a big way thanks to Tesla and to Munro and team who are simply pointing out the good (as well as the bad, when it is appropriate)
As always, a great video!
The description Cory and Sandy gave of cabin heating on combustion engine vehicles may have come across as incorrect in regards to the relationship between an engine thermostat and cabin heating in a combustion engine vehicle.
The thermostat in the cooling system of a combustion engine typically (almost exclusively) controls flow of coolant through the radiator and has no affect on the flow of coolant to or through the cabin heater core. When the engine is running, heat from the cylinders and surrounding areas warms the coolant in the nearby coolant galleries/jackets, which is constantly flowing to the cabin heater core and is un-affected by the open/closed status of the engine thermostat. Come on up to Edmonton during a cold spell in January and we can drive around with the engine thermostat closed almost all day but with plenty of heat in the cabin.
So, to clarify, you do NOT have to wait for the engine thermostat to do anything to get heat in the cabin. But, yes you DO have to wait for the engine running to warm up many litres (typically 6 - 16) of coolant fluid, all the fluid except the stuff in the radiator, to enable production of cabin heat.
Just to clarify, as you said, it takes a while for the engine to produce enough heat to actually warm the coolant enough to actually feel like heat. By that time, the coolant temperature will be approaching the thermostat rating. During this time, the engine is being air cooled by the freezing environment that surrounds it. Also remember that 2/3 of the engine produced heat is literally going to waste to heat the environment outside. Nearly all of the heat produced by an electric vehicle is being utilized for passenger heat only, efficient.
You just have to wait for warm to hot water first. Jaguar's from 1974 with climate control have a temp sensor strapped to the heater core return line. Untill the temp reaches 30C the internal fans will not operate. Not like your average car that will just blast you with cold air until the coolant warms up. Jaguars have 3 sensors. In car above glove box, ambient sensor in the Rh fan box and the one mentioned first. That's a great system when it's working 😊.
If you dial in 65f and the air outside is 65f it Will just give you the outside air first. Then after assessment it will introduce heating and or air-conditioning to achieve the 65f dialed in. I am a jaguar and Rolls Royce mechanic for the past 40 years.
All I want to do to them now is to fit Tesla running gear to them all.
Thanks for pointing this out and saving me the trouble. I’m surprised that Cory and Sandy didn’t know how an ICE car cabin heating system actually works and somehow thought that the thermostat had to open before the cabin heater core would receive any coolant flow. That’s just not how it works in any of the ICE vehicles I’ve worked on.
Also many ICE vehicles especially diesels have become so efficient that they use additional ptc or fuel fired parallel heaters to warm up the cabin, especially in the northern countries.
The practice of running the cars idle to warm up like in the US is actually illegal in many countries.
@@Dave-ei7kk while idk for sure how it works at least in my 2007 chevy cobalt the engine has to hit 100F for heat to actually start coming into the cabin so I would assume that it waits at least some
Thanks for briefly talking about the scroll compressor guys, appreciate it!
The air filter system is screwed in many places because it needs to be sealed. Same with the frunk. Works as a sealed box. Because of the hepa filter. The old one hadn't screws in to the cabin. Often leaking non filtering air inside
Access the vehicle diagnostics via Toolbox prior to tear down will allow you to pull the vehicle configuration which details vehicle components and suppliers. Keep up the great work!
Love to see if it looks possible for Tesla to add dynamic turning if the Plaid is drive by wire.
Most cars are electric steering, many of my VW's have been for quite some time, and it has fully adjustable chassis controls, steering etc, VW golf R 4 WD $45K, this tesla is grossly over priced, and poorly designed 1000 uncontrolled HP, is called JUNK, like 1968 muscle cars...Audi has said, what good is power without CONTROL?
@@cengeb Electric steering is different than drive by wire, where there is no mechanical connection to the steering rack at all.
The suspension looks awesome, plus a lot of cross body structure and rigidity. I'd love to learn more about all that is going on there. Thank you!
This is your strength guys! Forget about test drives and walk arounds, just go for hard core engineering! Make all your videos like this one!
Wow it's certainly engineered well. They logged some hours on a lot of the integration that went into this car. So glad it's you guys doing this for us.
Sandy threw out a disclaimer that he's a Tesla stock holder a few videos ago. I appreciated the transparency. I find him and the rest of the team intuitively honest but clarifying your financial disclosures more regularly might be a helpful for any skeptics
Oh I thought he got rid of it for Conflict of interest thing? I guess he bought em back then??
@@1flash3571 Was also my last knowledge that he had sold it
This is like no other on youtube; the level of depth and knowledge really captivates you and make me wish I had studied to be more engineering oriented rather than pure science.
Only one point, I gathered from another youtube video that Li Ion battery has some load/discharge problem with ICE starter's induction load and that is why Pb acid battery are still used in ICE vehicles. Not sure how correct is that.Maybe you guys can throw some light at it.
ICE alternators are pretty hideous devices from a modern electronics viewpoint. In practice you would need a very solid input-output-circuit integrated with the 12V lithium battery if you wanted to use it safely for the long term, have minor changes to the cars themselves and possibly even install it retroactively in any old car. Having a battery+electronics module that can handle 200 amps CCA is not easy or cheap. The batteries can handle 200 amps if you just put enough of them in parallel but if you need to convert the 14.5V alternator voltage to a suitable charging voltage and current and then regulate the battery voltage to provide a stable 12.7V during normal use and high enough current during starting, it's going to get interesting. You need quite beefy mosfets to handle this and I wonder if people will buy a $800 battery if they can instead buy a $150 battery every few years.
I am in total geek mode watching this! Thanks Sandy and Corey!
Our pleasure!
Sandy & Cory, you make me feel l'm on the floor, and part of the teardown! Thanks for taking me along for the ride_____
Guys I would appreciate a lil more elaboration on the heat pump capabilities. I’m following comments in more extreme cold conditions here in MN than you experienced where the system seems much more problematic. My understanding has always been that below a certain temperature there simply isn’t enough heat value to be withdrawn. In the case of residential systems they usually have a supplemental heat strip. I don’t understand how a software adjustment to a valve finds more heat ?
Efficiency level drops when you get really cold, but the system can still be 1:1 at worst energy wise by utilizing putting power into the motors (without moving it) and taking that heat to the whole system to warm the car). The 3:1 benefit is probably when it's 30F still outside or warmer (unsure on exact temp but I know below freezing efficiency drops fast).
I'm no expert on this but I have read that the issue is both software and hardware related. the air intake flap can freeze open or partially open in the air intake area and that triggers an error code that causes the heat pump to shut down. The software fix would presumable override this but ultimately I think both sides of the problem may need to be addressed.
also, people have to remove snow from the Active Grill shutters, they were letting Super cold air into the Heat Pump system , rather than using the Warmer cabin air.
People can FIX the heat pump, themselves by cleaning the Shutters or parking in a Garage.
you can also PRE heat the car in Winter, while home charging. I only charge to 95%, then park in Garage at night, then before I have my coffee, plug in the car, charge to 100% and pre heat everything.
I think the system is also able to extract waste heat from the motors and battery to supplement the pump but that would mean waiting for those to get some heat in them to extract.
I’m finding all of these comments and conversations very illuminating. I understand how the heat pump gained access to heat from the battery pack and the motor cooling in the winter time! One thing that I’ll offer is considering the relocation of the inlet and the electric shutters that would seem very flimsy.
In an earlier life I owned a Citroën DS21. It’s air intake was horizontal just behind the license plate which formed an air wall and suction that was immediately directed into the opening which was protected with a large opening wire mesh to prevent large objects from traveling to the vertical radiator. Seems feasible that the shutters could be mounted horizontally there. Otherwise, a low grill in our part of the country is nothing more than a snow plow blade and would require constant attention. Not my definition of a luxury segment auto.
Fascinating to watch. This is a real educational service. Thanks for posting to UA-cam.
Going forward, I would like to know how Tesla and other manufacturers are designing for repair and maintenance. Keep up the great work!
Looking at Sandys's other teardowns it seems that Teslas are pretty easy to take apart in comparison to other OEMs. For example, in the Mach E teardown, even the frunk is hard to take apart if I remember correctly. Sandy was complaining about too many nuts and bolts than necessary. In the Plaid and Y it was clipped on covers(if it isn't broken then it is easier than bolts) Then the actual frunk tub has like 3-4 nuts. I remember correctly you can't even open the hood in some Greman cars. Now if we are talking about parts that is a different story.
see - Tesla China - Go Giga - service and also cost savings videos. UA-cam.
As you can see in the Video, the vent could use a better design.
The Cabin Filter, should be easily and tooless accessible.
All filters and fluids, tooless and enough room to get at and replace.
@@kavink2514 wrong!!!! It’s totally the other way around, Tesla is integrating way too much stuffs which are going to need a total replacement instead of repair, the structural battery is another clear example, people can easily open an old tesla battery pack and reuse the modules for Ev conversions or energy storage.
@@alanmay7929 It would helpful if Sandy & Co. would note the pro & cons of a part or assembly. Such things as cost savings, weight savings, ease of assembly, and ease of repair can conflict as engineering goals.
Would like to see heat pump dissected and any theories you have about its failures for some in cold. Also whether those garbled images of the heat pump are damage from use or just odd manufacturering.
I thought the issue was not the pump but the front vents on the car.
One error on Sandys part is that ICE cars doesn´t create heat (for the cabin) until the thermostat has opened. Literally no car in history is made that way. It would have been stupid. The heater core gets the engines heat directly regardless of the thermostat. So all waste heat from the engine is instantly available to the heater core as soon as possible.
One funny thing to challenge a Tesla. The old Beetle has it´s heat exchangers directly on the exhaust manifolds which gets instantly hot when you start. If you start a Beetle in -10C it takes about 5 seconds until you burn your hands on the vents on the floor. The Beetle had other problems, but when ok, it had the quickest heater of them all.
Yeah. ALL ICE cars run with the engine hotter than hell peeing energy out of the radiator 5 minutes after starting for the entire drive, but burning dinosaur juice at 5% efficiency in the first 5 minutes unable to heat a matchbox.
@Michael Heimbrand: Maybe you should read @Dan Oberste's reply to @Jim H that his 92 Jeep didn't heat the cabin until the thermostat opened up. Jus' sayin'.
@@morrisg What someone has told someone is irrelevant. Heaters are on the engine side of the thermostat, not in the radiator circuit. It´s basic knowledge.
@Michael Heimbrand Are you really sure about your "old Beetle story"? As I remember it, the old Beetles didn't even have a proper heating system. Remember, engine is in the back, seats up front. As I recall, all of Beetles running in cold climates had to be fitted with gasoline driven heaters made by Eberspächer which of course, produced super hot air in a minute or so. The problem however, was that it easily got too hot so the driver shuts it off and then the cabin gets cold within a minute. Worthless design if you ask me. I know because a friend had a Beetle 1966. Nice looking car but horrible in so many ways :-)
@@GurgelKoff Yep. I know how rubbish 99.5% of them was. I had a lot of them in the early 90´s. And mostly it was a pain in the Swedish winter. But I had one with good heat exchangers, hoses etc. But the Eberspächer was dead. So it was only engine heat. Of course it wasn´t that effective with demisting the windshield. But I was talking about the outlets under the rear seat. It really took only seconds after start for the hot air to become painful on the hands. But it was only that car. My other beetles were mostly a story of sitting in rush hour traffic and scraping ice from the inside of the windshield. But still. When perfect, I bet it will beat any heat pump in a drag race from cold to hot air coming out.
Hi
first lots... and lots... and lots............... of thanks for everything you do and have done so far.
And secondly, I was indeed interested in seeing the process of disassembly and removal(tear down) itself and not just after the fact, as was done with the small battery.(Even live)
In addition also a little more explanation about but other manufacturers produce (in terms of vehicle body) and what the apparent difference is in terms of production of strength, and durability, and weight.
And maybe, now that you lower the suspension system to understand if the body floor is necessary since there is a stable structure form the battery.
Best channel.
Thank you for your great videos!
Thanks for the video, looking good! Mostly interested in the new battery modules and in the new inverters layout! And the front motor... Is it an ac induction motor or a brushless dc ipm?
NVH complaints are a common complaint by many journalists and in social media. I don't mind hearing some sounds to better connect with the car, road, and goings on around me. I'm pretty sure emergency services would like us to hear their sirens from a good distance. I imagine that having no roof liner is a big problem. I wonder how well the newly-released noise cancellation works. Thanks for your thoughts on this Sandy and Cory. Would love to learn more about NVH as you go through the tear down please.
Really interested to see if there is any measured improvement in use and quality of insulating materials, particularly along the firewall, front fenders, doors and hatch to reduce NVH in the cabin.
we have seen NEW NVH in the Teardown video, and more to come.
Tesla also has Insulation glass, and ACTIVE noise cancelling in PLAID, was pushed in Xmas Update.
I had an LFP starter battery on a 1200cc BMW boxer twin motorbike. It weighed 0.8kg but worked a treat and actually spun the engine better than the 5kg high performance Lead acid that it replaced. However internal resistance rises in cold weather. It needed one or two "failed" start attempts to warm the cells and then it worked fine. Unfortunately it would do the same again if I stalled the bike. It needed a heater pad with insulation. It also needed a small backup battery to maintain the electronics (clock settings etc) when the cold main battery dropped its voltage too low.
Sandy: "I don`t know how I can improve that..."
Tesla Team: "Hold my 3D printer"...
🤣🤣🤣
Sandy is having a blast analyzing every inch of the car.
Awesome content guys ! Keep going.
Three D printing is still too slow for use in a production setting.
3 hours to print a piece not very scalable
This is a great “how to” video for other oem on how to package an EV.
I would like to see the steering rack components and a break down on how the auto steer works.
I'm not sure why. That would be the shortest video they ever made. Not so much different to other cars with electric power steering. The clever stuff is in computer and software and how it uses information from cameras an sensors. The physical aspect of auto steering is the easy bit!
I'm sure to watch this entire series, just wanted to second Sandy's observation about the quick heating of EV's that use heat pumps! Not only can you preheat or precool your car using an app, but if you're waiting somewhere, or (in my case) on a ferry trip or lineup, you can just keep your cabin at the desired temperature even when the car is 'off'.
Other advantages you'll enjoy will be the lack of steamed-up windows as you wait somewhere, and the fact that you don't have to waste huge amounts of energy by running your ICE engine just to condition the cabin.
Great overview as always!
Once you are under the car, maybe you could run through adjustability of rear and front suspensions for the Track use?
As well brakes.
Have noticed already rear of the car has widely adjustable toe/camber arms, which could be really useful to set up this car for track. Intersting what can be adjusted there more and how much.
Front camber is so far biggest issue dor us while building model 3 for Nürburgring, and seems it will need custom top arms. How is it in Plaid front?
Front brake calipers looks like simple of shelf racing calipers from ap racing or brembo, and mounting to hub through caliper is mainly used on racing calipers or track-targeted cars like Clio Rs200 mk3.
Thanks again! And if interested - we are building model 3 race car with full racing cage, bucket seats and so on for the Nurburgring. Few videos already in our channel.
Looking forward!
Thanks for sharing! Any teardown is great to see, but now the Tesla Model S Plaid, that is just awesome.
Here we have a largely redesigned car that looks virtually the same as the one it replaces. It reminds me of the Porsche 911, which never departed from the original vision but has gradually morphed to stay current, and is one of the most beautiful cars on the road, IMO.
Tesla ain't no 911
@@cengeb thankfully! A 911 remains completely obsolete in comparison as redesign and updates are far more frequent with the Tesla.
@@cengeb Yeah it's better than 911
@Bellissima2k no such thing...the quality differences are glaringly obvious..so is the performance....straight line acceleration is hardly the test of a car...its not 1962 ya know
I get your point. The 911 design was basically perfect, the aero was so far ahead. And the same goes with Tesla. Perfect design that just tweaks things. Just Tesla does it on a crazy scale
Sandy made me do quickie research again: Positive Temperature Coefficient heaters PTC. Internal material resistance proportional to ambient temperature. You guys are awesome! Thank You
I'd love to see how the air suspension goes up and down!
Keep up the awesome work!
I agree- maybe give us rubes a suspension 101 on a separate episode outside of the tear down would be fun.
It's a little slow, but works great. Specially in Cheetah 🐆 mode.
Seeing a notification of a new video from you guys is like Christmas morning.
I just love the detailed explanation of how what and why things are done, benchmarking against other competitors along with critiquing the quality.
Sandy, my Dad is a retired Tool maker with most of his years being in the Automotive Feild. It makes me smile Listening to your comments sometimes, it’s like listening to my Dad. I guess it’s a Tool maker thing.
Great content. I wanna see a full teardown on the rivian truck in the future.
why ? It's junky.
too slow, too heavy, uses over 100 kw pack to get LESS miles, 2021 least Efficient vehicle ever tested by EDMONDS. and way too Expensive, RIVIAN won't be able to SCALE to Economy.
We will teardown a Rivian as soon as we get it.
@@markplott4820 Still.. We wanna know. For all its flaws it might have a good point of two that can be adapted by others.
@@markplott4820 I thought car&driver or motor trend just posted their 10 least efficient ev on sale today recently. And the Audi e tron s tri motor has even worse mpge than the r1t? Then the hummev in last place at just 56mpge. Which isn't bad compared to 6-10mpg for the ice versions.😀
Might that scrolling/scoring on the internal of that spiral to help mix the glycol as it moves past, not unlike a good inlet port on an inlet manifold, to encourage mixing of fuel /air? Also it might help slower fluid where it contacts the surface machining and because it slows the fluid a tad allows more time for heat transference?
Thanks guys, a great way to start my morning! I am a new MS LR owner and would love for you guys to explore the suspension system in detail to help me understand better the various suspension options on the touch screen.
@MINI DIVA Please cut the CRAP URL.
I bought a supplementary PTC heater for my '02 Prius, since the ICE is so efficient that it takes a long time to start providing serious heat. While I'm scraping the windows, the PTC will run and start to heat the cabin. Once the ICE warms up, I can do two things: I can unplug the PTC heater from the 12-volt outlet, or I can shut the main heater off, let the car go into electric mode, and maintain cabin temp using the PTC heater. I am considering modifying the supplementary heater with an off-the-shelf computer fan, because the stock fan is weak, rattly, and destroys the peace and quiet of electric mode.
Since you asked: I am most interested in hearing your thoughts on whether a part is likely to "trickle down" to cheaper models or when a part is clearly an experiment that is only affordable in the expensive Model S Plaid.
4680 cell, Structural battery pack, 48v system, possible 1000v battery pack, FSD, Steering YOKE, Mirror DELETE, color HUD, LED Matrix light, and more.
More like trickle up.
Guys - can you touch on whether or not the HV cables for the rear motor are protected enough?
Some have said that they don't have enough protection from road damage or object strikes...
I would love to see all the pieces of the heating/cooling systems laid out together, on a tabletop, for better clarity.
Would not take up much space, Corry lifted PLAID system with 1 hand .
Sandy Munro have my greatest respect, that’s why I got into this channel !!
But clearly the younger generation is taking over, just more knowledgeable and hungry.
Nothing bad, just more on the “beat”
Love this channel.
And I hope it’s gonna be a smooth transition.
Question to Cory, It looked like you had fun racing the Plaid Model S. I will be receiving my Model 3 this coming March. Do you have any suggestions or have you talked to other Tesla owners who have raced the car. I was a member of SCCA and raced a ICE car like a Datsun 510 full race B-Sedan. So much fun for two years as I modified the car to the point that it not only handled better but was so much more stable at high speeds. Just lowering the front end of car created this amazing stability at 140 mph. Then I changed the castor to degrees and now the car handled great at high speed with less wandering. So what experience do you now have racing the Tesla Model S Plaid.
Here is something we did when approaching a high speed turn on my Datsun 510. I would do all my breaking at the straight part of the track then feather the brakes less aggressively entering the turn. To purpose was to force the front end of the car down so that it put more pressure on the front tires. This braking in the turn, widen the surface area of the tires thus keep the car from sliding away. So did you try this with the Model S Plaid. Another example of how Brakes are so important to racing. I live in SF, Ca. We have plenty of hills so to keep the car from being like an airplane and airborne into the air, I would put a little brake just before I approach another hill forcing the nose of the car to aim down and creating a more controllable ride thus more tire on the pavement and less time in the air.
I bring this up cause I see to many people with nice cars but don’t use them to their optimum. I road raced on the tracks like Sears Point and Laguna Sega. After 3.5 years, I learned winner are drivers that know how to drive and understand the science of physic.
It would be fun to bring in a race car driver and point out the difference between Tesla and other EVs and what cars are the best. It’s one thing to learn about the engineering, but what about why one EV is better than another EV. We would be talking about wheel weights of each wheel and compare to a car like a Lucid or any other EVs. When I adjusted my car to create the best weight on my four tires, I used spacers by the shock tower to balance the car. A balance car makes better left and right turns.
Thanks. Bill Woo
Dai yoshiro has a highly modified pikes peak model 3 racer. He has posted some interesting videos on racing it right here on UA-cam.
Also Randy pobst ran the unplugged performance m3 up pikes peak in 2020. Some good videos of that from his perspective on here to.
17:50 From what I've read online, it's because the ICE needs loads of current for a cold startup CCA and the li-ion batteries can't provide that much power repeatedly. For an EV, these are the best.
Interesting to see the small compact low voltage (12V) battery. One would expect this to be expensive ($200-$500) but with a long anticipated life (>10 years) it makes economic sense and of course takes up a lot less room under the hood.
also charge faster from the 100 kw battery pack, 12v charging takes all day.
Unfortunately those batteries are super expensive at least $1000+ BMW has been using them in their cars for years too ua-cam.com/video/HrRyv9TMHEA/v-deo.html those batteries can also be very expensive to change when they fails.
@@alanmay7929 Ummm, not what the parts website says. Those BMW batteries are different, and quite bigger than the Plaid's. I think the Plaid 12V are about $200.
I want a 12v Lithium battery tear down! Open that baby up! 2170's? LFP? What is its capacity?
Sandy is being a bit of a moron there... That little lithium battery would be useless in an ICE vehicle since it would never have enough cold cranking amps to turn-over a medium-sized ICE engine at -30C. Lots of aftermarket companies make li-ion lead-acid replacements, but they are much larger than that tiny battery from the Plaid, which is really only there for accessory 12V loads.
Thrilling to see this disassemble with the explanations as you go. Two thumbs, way up !
So, getting the air intake out with battery in place may have been possible with a good firm yank, looks like the lower half of the air box is structure for the two feet.
I really like you two looking at things and bouncing ideas back and forth!
Probably knowing where the hooks are on that shroud would give a Tesla tech the confidence to know how and how much "yank" is needed to get it loose. Whenever working with plastic, the fear of breaking something makes one more timid than is sometimes necessary.
Very true, but being a frequently servicable part (filter) the battery should have been located with that in mind.
First of all thanks for the videos and keep up the good work. I think you should dive into this heat pump problem more. My Model S Plaid is going in on the 14th to get a new heat pump. I saw on FB that others were having the same problem with the HP. Mine is a June built 21 so one of the very first. This heat pump problem seems to be sneaking its way to the Model S as well. I just got my car back from being in the SC for 45 days waiting on a new computer. Picked up car after hours (3 1/2 hour drive each way) On a Friday and it was just below freezing. I thought it was an actuator behind the dash and made another appointment. Went to open the frunk a couple days later and heard the loud noise by the LF wheel so I popped the front trunk and removed the panel and sure enough it was the heat pump failing. Clicking so loud and hard it can be felt in the steering wheel aka yoke and just touching the dash. I think once the noise happens then the damage has already started. I believe they are replacing mine as they know technically my car is a lemon by the law of the state I live in (In service longer than 30 days in my state). We shall see
BTW. Not knocking Tesla at all in my post. If my car ends up being a lemon I will have a 2022 Plaid within a week! WILL NEVER GO BACK
What a great episode! Delighted to see more information on the thermal management system. Are you going to do any follow up on the cause of the erosion on the scroll? What material is used to manufacture the scrolls?
It would be fascinating to know if it was friction or cavitation causing the problem.
@@imconsequetau5275 I'd be willing to bet the scroll is pumping liquid is some situations and that's what's causing the erosion. Scrolls are generally spring mounted and can pump an uncompressible liquid but not good for them. I don't see a suction accumulator so wouldn't be surprised that liquid refrigerant is finding its way to the compressor. I'll also bet there's no reversing valve in the refrigerant system and therefore it's not really a heat pump.
@@virgilwhetsel5289 If the "heat pump" is simply pumping heat in a single direction between two regions of the same coolant, then the octo-valve can still fully control heat flow direction. The octo-valve *is* the reversing valve.
I don't really care about the simplicity of the "heat pump" valves or resulting terminology and categorization, but omitting a suction accumulator is significant.
@@imconsequetau5275 Use of the term "heat pump" indicates a refrigeration machine that includes a reversing valve and the term should not be used otherwise. It's confusing and distracting.
@@virgilwhetsel5289
The octo-valve *is* the "reversing valve". The valve _location_ is so important to you?
When done, can you tell us the total length of wiring in the car and the amount of clips, hoses, coolant weight like you did when you compared the Model Y to the Mach E? I wondered if they could reduce even one more clip on the coolant line.