ZF 8-Speed Transmission Guide (8HP45) - Specs, Common Problems, Diagnostics, & Maintenance
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- Опубліковано 1 кві 2021
- ►The ZF 8-Speed transmission, known as the 8HP45, is a revolutionary automatic transmission. While we show it commonly in many different BMWs such as this F30, the ZF 8HP can be found in vehicles from over 21 different manufacturers worldwide. In this guide, Gareth Foley, FCP Euro's BMW Catalog Manager, covers:
ZF 8-Speed Applications & Manufacturers
ZF 8-Speed Service Intervals
ZF 8-Speed Component Overview
ZF 8-Speed Common Problems & Leaks
Two major ZF 8HP topics that Gareth also touches on are servicing the transmission even though it's "lifetime fill" according to the manufacturers and how to access the neutral safety switch. To learn more about each, visit the links below.
How To Service A ZF 8HP At Home: • ZF 8-Speed Transmissio...
How To Put A ZF 8HP In Neutral Using The Neutral Safety Switch Bypass: • How To Put The ZF 8-Sp...
If you're interested in more BMW F30 videos, you can visit our BMW F30 playlist • BMW F30 or visit bmwf30.fcpeuro.com.
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Just came off an Engineering Explained video claiming this is the best auto transmission ever... This is much more useful in the real world
Agreed this is the best transmission I’ve ever had
Not at all. So for example lets see how good it is after a running time from 500.000 Miles compared to an realy good Transmission like the World best Japanese AISIN Transmissions. For example i owned also a AISIN 5speed Transmission with 4 Overdrive Gears and it runs, shifting like a pure dream fast, very direct absolutely without shiftlegs. And without any oil changing after 6 Years lifetime. Also Hyundai Transmissions are in the Average decent too, but my 5speed of course not that good as my 5speed AISIN in the drive feeling BUT in the quality my Hyundai Transmission is very reliable and very strong. But i guaranteeing no ZF Transmission will by far not gets the same lifetime like a AISIN there is no Arguing that. With a equal, same maintenance no ZF can mess in lifetime with a AISIN. It starts already with that primitive Plastik pan, ground cover on the ZF 8speed As far i know AISIN doesn't use such a plastic crap for example for the oil pan part. But if such a plastic sh... will may eveen come on ASINS i be sure, than are the Plastik parts from the European, German Manufacturers way way more trashi, crappie than Japanese ones are. This is, what it shows in the history allways in that way. So i don't expecting already here a long lifetime and a maintain less payable lifetime from those ZF crap. Thats normally the way, how it is.
Regards Jay
@@JWORLDKINGyou cannot compare smoothness and shift speed to Aisin boxes, ZF 8 is number 1 by far. Most used gearbox in the market for a reason. Same reason the biggest brands use it.
@JWORLDKING you have no idea what you're talking about buddy. If you think an aisin shifts smoother than an 8hp you're on crack😂
You all are crushing it with these videos! Thanks so much!
The F30 really needed these videos. Fine work 💪🏻
Your videos are my favorite from FCP keep them coming
EXCELLENT JOB EXPLAINING THIS TRANSMISSION. BRAVO!
Bravo, Gareth!! Awesome FYI video.
thumbs up - love these videos, keep pumping them out FCP!
I did this awhile back using an fcp euro kit. Thx!
Great vid Sir! I just picked up my 320d f30 and was shocked at how good the 8 speed auto shifts.... ZF did their homework...
It is a proper transmission , there's a reason we see it in almost everything.
@@fcpeuro when maybe not fully warmed up and the car has a higher than usual passenger weight is it normal for to get drivetrain message on dashboard?
Thanks for this excellent video. I'm looking at buying a BMW with one. Once I do buy my first Euro car, I know FCP Euro is the ~only~ place to consider when buying needed supplies. Again, awesome job!
Awesome video and technical insight ✅👌
Awesome presentation. I havn't had the joy of owning a Beemer with an ZF 8 speed yet, only the ZF6HP28 6 speed and it has been bulletproof. ZF is a great company with heritage dating to the Zepplin. Reliability is the highest priority.
I too have a Jeep GC with ZF8 box, fantastic tow vehicle, dont use 8th gear for towing. I am a little concerned with vehicles with 10 speed boxes and towing, might be keeping the Jeep a little longer
*Bimmer
I agree the ZF 8-speed is a fantastic transmission, very quick and smooth gearchanges. It was a bit confusing in the beginning where you first very clearly recommend the original ZF filter unit and then later, underneath the car it sounds as if you say you don’t recommend it «because it’s made by Philtrans»…, which is correct? I can buy a kit from ZF or Meyle, where Meyle is actually a bit more expensive. Meyle is a reputable manufacturer, although ZF seems the better choice as the original manufacturer.
Also, is there a similar instruction video on actually changing the transmission oil?
Best automatic transmission in the business.
Thank you for the information!
Great video! Is there a datasheet with the recommended service interval for every fluid, spark plugs etc in one place? If not could you compile one? :) I have a 435i xD with 30k miles and I would love to have pointers on what is next on the maintenance. Thanks!
8hp has been in service in the 3 series for 8 years but it came out a lot earlier. First application was in 2008 7 series. Basically came out at the same time gen 2 6hp came out
very thank you for this video
Love the 8 speed zf my e85 428i wouldn’t be as fun as it is without this transmission
Great Video. Thanks for sharing
When I ordered transmission kit from FCP, I got also 3 rubber tubes for replacement as well as electric line new sleeve. All replace and works awesome!
Yes very educational..
We had a 2016 X3 3.5i that went through 2 of these in a month because they would not stop leaking from everywhere. Like they were building up pressure internally or something. Luckily it was all dealer warranty work. Ended up getting rid of it for a Grand Cherokee 5.7 with the same trans and haven’t had any problems with it this time around.
Great content. Do you recommend doing the mechatronic & Can bus seals at the same time?
Definitely agree that this tranny is a keeper.
I'm a 20 years experienced tech and I have one in my 2013 ram 1500. Not one problem with the trans since buying the truck brand new. I've done one full service, changed the pan/filter with mopar and amsoil ATF spec'd for it at around 75k km, and just drained and filled it every 75k km since. At around 225k km now and it drives like it did on day one. I'll be doing another full service soon with a new pan/filter.
Nothing required other than the regular maintenance, not even so much as a leak.
You are the best!!!
I have this transmission in my 2012 BMW X5 35i and it is extremely smooth but yet if you need it to turn into a quick shifting performance machine you can slap it into sport and it transforms it.
My BMW Indy changed my transmission fluid and filter with a kit I bought from FCPEURO. It’s on an F30 and I had 80k miles. He commented about how clean the old fluid was. Now to do the E89 auto trans....
The pan I purchased to service my ZF8HP on a 2017 BMW X5 has the latest revision with the white transluscent filter casing. The pan is co-branded Hengst and ZF.
I used your video from the X5 8HP service to do the fluid and filter change on my 228i xDrive - messy without a lift but it was a surprisingly straightforward job. Your complete kit was exactly what I needed - I just wish the ZF Lifeguard fluid wasn't so costly. Have you & others had good luck with the Liqui Moly Top Tech 1800 fluid instead?
No - use chevron fully synthetic multi-vehicle ATF which meets / exceeds the spec for the OEM fluid at 1/4 the price !
@@patrickdunn6701 it doesnt. multi vehicle atf meets requirements for more common automatic transmissions like ford’s mercon lv. do not put that in ur zf8. lifeguard 8 is not like normal atf and has different viscocity at different temp points
Hi, really appreciate the video, is there a manual process of checking the oil temperature? Also how much oil does a 520d 8 speed tran takes.
In Australia we have the 6HP in our Ford Falcons and it was a reasonably common problem where the transmission cooler failed internally, However I have never heard of a ZF gearbox failing without reason aside from the cooler.
I would like to know more about the sound they make on their upshift, I gather its the brief unloading of the engine to allow for a safe/smooth shift saving the input shaft, But I would like to nerd out on more information about this and why it happens, and why you don't hear the same noise in other automatics, apart from DSGs - Which the ZF isn't.
Thank you for info good man
Any time!
What could cause rough shifting? I notice it most in the middle most used gears. From 4 > 5 > 6 and back. More noticeable with cold engine / transmission.
Thank you always for the good videos.
May there be hope and peace in Ukraine.
Hi Gareth, thanks for the video from the UK, its been about 45 years since I stripped an engine and gearbox. ZF transmission is unbelievable in my Alfa Stelvio. Only slight issue is in auto it sometimes won't shift up in the normal rev range from a standing start until I paddle/Stick Any ideas?
Thank you for this video. I watched the other vido on changing the transmission pan/filter and oil, purchased from FCP for my 2012 BMW 535i xDrive. Question: My car is still downshifting hard and bucking a bit in gear under load. Do you think I could replace the mechatronics unit on this my car to correct? Other than transmission, 130 miles and running like a top. Appreciate your input!
Dam didn't know about the manual override to neutral. Very useful
Glad it was helpful!
Wish all videos were as well explained! I have a 2016 Audi Q7, 100k miles, oil never changed I think… every now and again only when down shifting I think around 3-2nd gear it kind of does it sharply… sort of a shunt if u get me… only does it now and again. Would a gearbox service sort this or is it more like a solenoid etc? Would greatly appreciate your input and u seem very well educated on this gearboxes!
Have it in my ram and it's amazing. German engineering.
Garreth, Great video! Thank you for posting this.I have an F30 335i N55 sportline with an 8HP and it shifts so fast, its nearly as fast as the DCT. #projectweltspeed #weltspeed
Glad you liked it!
Hi Steve, I have an F32 435 AT 8 speed, Quick question when you put the car on sports plus and on manual mode, and you floor the throttle from gear 1, does your car go into overrev or does it automatically shift up to second gear?
@@exoticsinafrica1789 it auto shifts from 1 to 2nd even in manual at WOT in full sports mode. That’s by design from ZF software.
@@SteveWeltman thanks for reply, my car doesn't auto shift from 1st to second when im in sports plus mode or with DSC full off,with manual gear selection selected, instead it went into overrev and power cut, does that mean I have a problem with the engine or gearbox? Im perplexed as i bought the car used about a month ago?
@@exoticsinafrica1789 unless you have XHP software it’s hard to know if there are adaptations programmed to dis-allow auto upshift. I have a bone stock ZF6HP21 in my E90/N54 MSport and it forces a 1-2 shift at WOT w/DSC and traction off, full manual mode. The over-rev may be allowed by software in XHP or it could be regional if you’re in EMEA (you appear to be). Either ProTools, XHP or a transmission pro can further explain well beyond my limited visibility on your cars conditions.
Thank you for the knowledge,
I'm using F30 ActiveHybrid 3 using GA8P70H there is an electric oil pump
which the diag Code showing up I guess it's broken. I try to find the part but I couldn't find it.
Any suggestion ?
Great video - thanks... Maybe you can guide me here.. Over the past weeks I have discovered problems with the transmission... Worse when the temperature is below freezing... gets better when the engine is hot and even better shen the weather temp gets higher... Difficult to set into Reverse - have to put it into Drive mode first and then Reverse... When I start drive the rpm goes higher before shifting, and 40 miles an hour with 3000 rpm, does not get the transmission to shift... It's like only the first 3 or 4 gears are being used... Manual gear is not possible...
One day is totally crazy - the next day it runs without any issues...
Yesterday the oil level was checked and was ok - the oil was dark but not black.. not clear... The car has just turned 100 K miles..
I drove the car to a workshop specializing in automatic transmissions, and they said worst case scenario is a new transmission.... My car is a BMW F31 from 2017 - well seems like a huge expense on a relatively new car..
Any comments/ideas :-) and happy new year to all...
Thanks great video. From ZF service manual:
ZF 5-, 6-, 8- and 9-speed as well as the ZF 4HP20 automatic transmissions are filled maintenance-free with specially developed
semi-synthetic ATF oils. However, due to the many factors influencing the service life of transmissions in individual operation, ZF
recommends an oil change after 150,000 km for its transmissions. In operating conditions with high temperatures and loads, or
with unknown vehicle use in the past, it can make sense to change the transmission oil at shorter intervals.
In each case, only released ATF oil may be used for oil changes. And oil changes must be performed in accordance with the
relevant specifications. The exception is the ZF 5HP18 automatic transmission which must be filled differently depending
GREAT Video!!! Do you know what causes the "Service Shifter" message? Mine was on for years without any problems but one day my 2017 Jeep Grand Cherokee just stopped moving. The PRNDL on the dash flashes and the Jeep just stays in neutral even though the shifter and dash says Drive? Had a new Valve Body installed and the Jeep ran for about 40 miles but really HARD downshifting, poor mileage and higher tranny temp than usual... 220/230 as high as 240 within 10 minutes on highway? Then the Jeep went into LIMP mode. Took it home and now 2 days later check engine light gone and it's driving fine??? WTF? Last thing, do you recommend a TCM reset??? Thanks!
Evening guys, I have the 8hp 45 in my 2011 5 series yBMW. I’m suffering quite badly with a very sluggish gear box with hanging onto gears, getting nudges when down shifting esp from 2nd to 1st. I carried out an oil service with new pan and ZF lifeguard 8 oil approx 2 years ago and have since drained and refilled the box twice to try and flush with fresh fluid. The car feels really lazy and is weak to take up torque. It’s done 170k miles now. Any ideas? Thanks
Hi I have a BMW F32 435 AT 8 speed, Quick question when you put the car on sports plus and on manual mode, and you floor the throttle from gear 1, does your car go into overrev or does it automatically shift up to second gear?
Have you guys seen or found a decent service interval for people doing a hand-full of HPDEs each year with the ZF8?
Question for you is it a bad idea to get the ZF gearbox on the BMW G30 530d xdrive flashed. I was considering the Alpina flash for mine before I get the engine map done. Any help would be greatly appreciated. Thanks.
Gareth, do you recommend changing the transfer case fluid as well? I have 55k on my X5 xdrive 35i N55? Thanks
My broke at 300.000 km, grooves in one planetary set were torn. It was a common problem and upgraded version of this was installed. It was not expensive at all, together with oil and filter the repair was 1,100€. Now I have 330.000 km and I wonder how many more are there before breakdown.
When I first drove this car on a test drive I almost couldn't believe how smooth everything works.
How much torque can it handle? Nice video BTW
Hi Gareth,
I have a bmw 435i xdrive grancoupe M package 2016 with 83000 km.
What you recommend to do as maintenance at this mileage except oil and brakes?
Thank you
hi mate, i've found a lower leak (not near the input shaft) on my ZF8 only 27k miles on the clock. my garage will be changing the pan over but he also said it's extremely unusual for the ZF to leak at that mileage. Does it sound any more sinister than just a fan replacement and re seal ?
Great video!!! I have Audi Q7 4M model, from 2015-2021. It has ZF 8 speed automatic transmission. I have 170 thousand kilometers on it. I don’t know if a previous owners done the transmission fluid change. Do you recommend me doing this at this stage? Also, which transmission fluid you recommend, original from Audi dealer or ZF one? Thanks for your reply 😉👍
Hi, do you recommend replacing the pan with an aluminum one? It seems that the updated pan is aluminum, what are the benefits of replacing it to a more expensive aluminum pan?
I'm guessing the trans service would be the same for 2016 535i Auto ZF8?
What about when swapping a 8 speed transmission with a used one. Is there anyway around the coding?
Where is the video of FCP Euro explaining the problems of the zf6hp?
Please can you help. I have an F25 X3 xdrive 20d here in the UK. I have noticed a slight delay in taking up drive when moving off from a standstill. It's as if the car is in neutral and as I apply pressure on the gas pedal I feel a very slight delay/lurch as it engages forward motion. Other than that my car changes gears absolutely perfectly in automatic and manual mode, even using the paddles. This is not every single pull away, and I need to be aware if it is when the vehicle is cold or fully warmed up but as you are so knowledgeable I thought you might be able to shed some light on it. Thanks in advance.
Thanks for the video. I have one in my Ram 1500. It’s having issues when the fluid temp is below 90 degrees. It has little milli second slipping almost timed, it’s weird not the typical slip of transmissions of the past. When it warms up the little throttle jump/transmission slip goes away, but the shift is not as aggressive as it was prior to this. I was going to start with a filter and fluid change before taking to dealer. How many quarts of fluid does it “usually” take? Thanks!
Expect 8qt of oil for your ZF8HP
Got my transmission fluid changed. BMW.
Now when down shifting (to a point of 21 km/hr), it feels a slight jerk. Sometimes harder, sometimes barely perceptible.
It could be low fluid?
newer (2021+ MY i believe) now have a metal pan with a separate filter. i have tried it yet, but the shape is the same, so you should be able to snag one of those pans and save the $200+ for a pan/filter
How many quarts of ZF oil should i put in the oil pan when i do an oil change on this automatic transmission ??? Thanks
8HP is indeed much more reliable than 6HP. Both great transmissions.
Does a 19 ram rebel have a transmission thermostat? please add link for upgrade.
Puting the original TCM from the car in a second hand transmission could work?
Hi,can I ask you an advice?on a 100 miles no maintenance gearbox should I flush process or only ordinare oil change?Thanks!!!!
Legendary Germany Powered. ZF series automatic tranmissions!
Hey there. Coming in late, but I have a question with a Charger 8HP. Could oil getting into the electric connector cause an issue like a gear change hanging? Meaning it feels like it goes into neutral for a second before going into the next gear. I've been coming across that lately and Dodge doesn't seem to be fixing it. Thanks
BRO !!!!!! CAN YOU EXPLAIN HOW TO REMOVE MECHATRONIC VALVE SLEEVE FROM 2011 F10 N55..... WHAT IS LOCKING THE PIECE IN??????????????????????????
Hi. I'm from Brazil, can febi 39095 fluid be used instead of ZF Lifeguard Fluid 8? can i do a partial swap by mixing febi with zf lifeguard? thanks
To replace 7 or 11 litters by pumping out all qty?
I have BMW 520d ZF 8 HP 45. The solenoids had Changed six months ago with the new original parts and the shiftings are now almost good. But when the car gets the second gear and then Just when I take off my foot from the gas pedal, after I take it off , the car shots to the front like I brake it. After the shifting if I continue to the gas 2-3 seconds and then getting the gas off, not just cutting off the gas after the shifting it doesnt do that. the revolution counter shakes a little But it does it when the car is hot, when I drive the car about 30 minutes. Thanks. What can it be. The turbine is new.
get that heat shield cleared from drive shaft?
Hello, After I changed the fluid in 2018 q7, the car randomly does not want to go to park and give the P07BE00 Parking switch A/B correlation code. Went to the dealer they said the fluid might not be at the correct level and want 1k to redo the fluid. Any suggestions would greatly appreciated. The car run at 90C after 30-40 min which is in the normal temperature range....
Hey there, a shop claims that they have to drop the entire mechatronic to change that wire sleeve. Is that true? Is it easy to change it? Seems like mine is leaking
2013 F30, 220k km, no any problem with trans. Wanna another 10 years and 200k km, change pan/fluid now or not? what's the worst situation if change? any suggestions?
2013 my14 335i m sport the drive gear on the on the dash the sqaure around it was flashing and the d gear on the shifterbwas flashing mate is saying it might need oil flush and pan hopefully its just the that but id like to hear ur opinion sir
Nice shirt
Hello
I have a bmw f20 and the engine cooler failed, so the gearbox got contaminated
I changed the cooler and the oil gearbox oil but the car never engaged any gear, it's stuck on "Park"
Could you advise what to do to fix this?
I own a 2007 Bmw 335xi and recently have a problem with the reverse gear ⚙️. What should I do
I have a question, I got a zf 8hp55 transmission and I don’t have a reverse it’s like it’s still in neutral I do have some forward gears but it feels like it’s slipping really bad and when I put it in manual mode I get 3rd gear and will not shift to any other gears, any advice what it could be?
Thank you in advance
I just did a pan/filter replacement and fluid infill on my ram 8 speed. Started the engine and topped off the trans fluid while running. Drives and shifts fine, but now it wont go into park. Says “service transmission”
???
what about the 8HP70? have you done any work on those?
Hey, thanks for the video. A quick question for you: I've seen also the fluid change video (thanks for that) and my question is: by replacing the oil in that way (gravity only) we are barely changing only half of it (torque converter and cooling radiator don't release their oil). Is it still ok to have half new oil and half old? Is it better to use one of those machines that does the full oil replacement?
I ask as I can do the "gravity flow" oil change by myself (I've the PC to check the temperature for level verification) but surely not the full replacement.
Thanks. Alex (Giulia 2.0 TB with 8-HP 50)
That's the same question, I wanted to ask
Ok so I changed my battery yesterday to a interstate battery yes I know it’s not Bosch one. But regardless after taking it from the shop and driving it a good while with ac on after a while that same day I got a “transmission overheating” please help!!! What can I do does it have anything to do with changing the battery?
I have a zf 8 speed and I bought my f30 n20 at 150k miles and now have 170k miles should I change my transmission fluid and I don't if it has ever been changed but it shifts smoothly. Any takes on what I should do?
I'm at 293k miles 2015 chrysler should I change my fluid?? I know it's super high mileage prolly the highest in the country.. shifts smoothly no issues
BMW 118i automatic F20
have an automatic car is doing funny things
First when selected Drive or Reverse it would just jump back on its own into Park.
Now its not doing that anymore.
Now when i select reverse it goes into reverse and as soon as i get close to something it was sound an alarm, but when i select Drive it goes into drive and goes forward . the alarm disappears but the reversing information is still on the dash screen even when i put in Neutral.
Hope i can get some help from you or someone on this chat
My friend do you if I can swap ZF transmission from 335i F30 with N55 engine to my 330I E90 N52 engine ? I want install this transmission on my N52 engine. As I can see the block threads flange is very similar between N52 and N55. Could you help me please with this information ?
Hi! Could you gime me an advice about why it could do a bump between 2nd and 1st gear when breaking for a stop?
I have this problem on a BMW 520d GT
The car has over 370k km and i don't know anything about it's service history...but i just changed the oil and filter and the two o rings.
I've been scammed by some private seller with fake service history and milage cut down
Audi BiTDI has this gearbox but mechanic release. There is no screw on the side of the gearbox under the car. Any idea how to release it?
I have a 2.0 gasoline 280hp Alfa Romeo Stelvio and the shifting between 1st and second does not feel totally smooth, you can feel a slight thump, as if a clutch was slipping and then engaging more firmly, before a shift is completed. Could this be related to the need of an oil change, or can it be any other issue? It's barely noticeable, only from the driver. I honestly don't think it's normal. Car has 75.000km. Thanks!
My f30 328i xdrive has 76k miles should I consider servicing it
What about the start stop system pump? Maintanance
i know you guys do mostly bmw's and the sort, But I think it would be interesting if you guys have any knowledge on the Ferrari/Maserati F1 transmission system. I know a lot of people would be interested in an expert doing a clear video going over it.
Hi, I have an F30 328I M4 2013, it has stop start ,when driving come to stop sign or stop light the gear goes into park and sometimes the engine stops completely, you have restart engine select D and drive on. it happens mostly when stop/start is on active mode !! the fault codes 421342 level2 unwanted power transmission detected in neutral, also 420641 parking lock defectively engaged plausibility drivers command/sensor feedback??? What would be causing that to happen??? thanks
Hy Gareth, I have an issue with my ZF 8HP, on a BMW x3, G01. When the car is stoped in traffic, when I start the car a kind of whistling noise is coming from the gear looks like. Is like an internal hydraulic oil leak or something. The sound is similar to a ship’s whistling!
What do you think it might be?