Great video Keith . Appreciate your time in making such an informative clip. We out in South Africa are starved for good wiring diagrams.Can you refer me to some sites that have wiring diagrams for European cars like the one that you used in this video.
Mervyn Naidu I am doing a little preliminary research and it seems that auto data offers the best wiring diagrams for your area. but I will continue to search
emanualonline dot com if you want "original" manuals and/or semi legal from the car maker or if you are diy just one car person: haynes.c o m/en-gb/car-manuals
i cant believe there were no voltage drop issues before this wire completely rotted away. you would think there had to have been. great video keith. love your procedures and how u track down problems man. u make it look easy and i certainly know it isnt.
Dylan Kinch I keep insisting that there had to be some type of an issue but the owner swears there was nothing . Either way fixed and I move along to the next one
Hey Keith, with all the "NEW" parts on the front of that engine it screams ACCIDENT to me. would not surprise me one bit if that wire was pinched in the process and never fixed or it was overlooked. Just saying
Even with a voltage drop which I believe would just mean a slower fan speed the ECM would just compensate by running it at a higher percentage? So unless you were sitting on a highway in traffic in high heat you may not have noticed anything.
Kevin Gallich I like the thought process , however even a higher percentage can not overcome the laws of electricity . Only x amount of current can get through y resistance with z amount of voltage supplied 😉
Great video!! You have such a wealth of insight and knowledge, so glad Erick and Ivan talked you into doing videos. Your videos will definitely help a lot of people learning diagnostics.
Not gonna lie. One of the best mechanics out there. A lot of people will not bother what you did and probably Will tell the owner to replace the fan 100 times. Much respect, thanks!
Car newbie here trying to get my older Mercedes going again. I really appreciate how you just walked me through this process step by step with the diagram and testing the lines. I don't have any type of computer and I'm trying to fix this on my own, but I can't believe how easy you made something so complicated seem. Thanks
Another nice and quick video, I feel like I am finally internalizing the proper and optimal methods for diagnosing. Really appreciate the effort you put to get this videos online, really helps and encourage a lot of young techs like me to learn and become better
Initially when I saw Mercedes cooling fan, I guessed fan control module, I've seen couple of them went south, and when I opened one of them, I saw exploded transistors, probably fan motor gets shorted inside and blows up transistors inside. Good diag video!
I am not an expert , BUT - if the car was running hot , you put in a thermostat , water pump and fan ? But you never check that the fan works - FIRST ? What if you ran jumper wires to it to see that it operates - why replace it ? Diagnosis VIA parts cannon ! Replace EVERYTHING - it's gotta work . We don't need no stinkin power ! How do they get away with it ?
I really do appreciate the videos. I've always been intimidated on working on electrical issues, but now notice there is a procedure everyone follows to trace down faulty wires. It really helps a lot. Thanks for the vids.
Juan Hinojosa my motto is "they are just machines" . They don't have feelings and they don't try to intimidate. In the end all it comes down to is basics .
I forgot about all the corrosion seen on or in vehicles from the Northeast and upper Midwest states. I've lived in Southern California away from the coast, since 1976, but I do remember what the salt did to Massachusetts vehicles! Good diagnostic work!
I can understand people calling on you for data com issues, but it's Unbelievable that a repair shop can't diagnose an open circuit on a power feed! ...Love your videos!
I need to get my ac looked at. I been putting in the DIY freon from Walmart but it never gets cold. Fan works and it cycles but stays hot. You are very detailed in figuring out what is going on. Good job. Thumbs up and shared.
I will be up in NYC /Jersey area sometime this year. That would be great. I brought this 1998 Jeep Cherokee for 1200 bucks and have driven it for 4 years. I fix a little on it a time on it. #TeamNoCarNote. Have a good day.
Wow, that's some quality green crustiness. So very nice of it to show itself off so clearly and out in the open! Nice work sir. Thanks for taking the time to share this!
Not part swappers. When they "diagnose" a vehicle, they pull the code and whatever component is mentioned gets replaced. In this case, it was the cooling fan. The fact that the code explicitly mentioned an open circuit was above their heads.
Great vid Keith. Bloody Benzes and Beamers look so intimidating, like working on an alien spaceship. Loved the PC with the pen marker, perfect for tutorials!!!
I'm learning to hate Euro wiring diagrams. Why can't they just label stuff on the diagram, instead of the number/letter game? The last Volvo diagram I attempted to decipher had me ready to pull my hair out! Great vid Keith, and THANKS for posting it!
What a fantastic video.. I have a c200 kompressor that was giving same problem. I followed all your advise and I was able find the problem.. Funnily on the drivers side close to the right foot under the mat
Very cool. I have a similar issue on my 08 CLS. Shop wants $1100 to change the fan. Seems super high based on my research. I will investigate it more like you have shown.
Excelent video… I had similar issue twice in my C230. In my case was failure of the fun. Maybe because I live on a hot weather are in which summer 120 degrees is normal I assuming inside the Engine it should way higher makes the fan to fail. I seen at least one video in the net in which one person open the fan ( had to cut enclosure fix it and glue it back) and found cold solder on some capacitors that reflow of the solder fixed. I ask to keep the old fan so when I find time I will open it and double check if that is the case. But 100% correct if the fan don’t work the AC fail to work also. Thank you
It's New York. Maybe they drove over a body and something caught on the harness. Nice video. Thanks. Between you and South Main Auto, I'm really learning how to use the test light.
Very informative. My CLK320 is doing the same thing so researching diagnostic procedures and appropriate fix. At least I know what the module looks like now and the prefuse! Back to the drawing board!
Thanks for another great video Keith You definitely have a gift for explaining, you would be a great teacher. I did like the long pause before the fan operated itself ;-) Please keep then coming
thanks for taking us along I appreciate the videos, I'm not a mechanic but I like to have a basis of knowledge when I talk to my mechanic... or at least know enough to be dangerous.
Thank you for making this video. Its not as complicated as I presume since I don't work on a lot of euro vehicles. keep up the good videos and explanations.
Keith how do u like the 431idiag ? I see it programs Honda keys, replaces Tcm pcm with no pin code needed . do you know if it can program keys for Chrysler dodge ? is it good for shop use . we dont mess with bmw Audi vw so really just the American cars
New level u couldn't have explained any direct than what you explained! Great tutorial. I on the other hand am a do first then explain. Not gifted in that area i suppose. However once i put hands on any of the jobs take from customers. They are all ways satified. Oh one other thing ..... A quick fix sometimes is as good or if not better than the right way. Find myself in that situation often. however i do warn the client about the temp fix and so on.. Keep up the good work Mech. Pro. Also when u located the problem there was no one to cheer u on. self satifaction! But i shared the joy with u! i know the feeling its as if God came down and touched u on the shoulder.And the moment that fan kicked over! Exciting! My GF doesn't see as exiciting. Up until i told her to take her benz the work shop! LOl!!! Keep at it my friend the Mech Pro Gods are their with you!
All of these comments are talking about the same thing but they don't realize it. What Eric, Ivan, and Keith have in common, which VERY FEW auto mechanics have is PASSION for their profession. When you bitch about parts changers and hacks and people that don't give a shit vs. these guys that's the difference. Are these guys motivated by money, of course they are, but they truly like what they do for a living. I was the some way with Semiconductor R&D and Manufacturing. I loved that shit. Did they pay me a lot of money to do what I loved to do anyway, YES. But making electrons do what I needed them to do is what I lived for. When you're just going to a job that's paying your bills you never put the effort into it that you do when you're doing something you love. The primary job of high school should be exposing students to as many different professions as possible so that a kid can pick the one he's going to do for the rest of his life and enjoy it. Instead they throw him out the door after graduation and hope that he finds something. Another failure of the American educational system.
SATAMAN Schmidt very well put as always. And I agree , teach them about the things they can use to have a successful career. I think you should do a live video about just this topic !
Fantastic explanation with the wiring diagram and circuit. I think it is wonderful to help us who's watching thank you for the videos and your time I try to compensate for your help trough paetron and hope a lot of people also do the same. For me, it is fantastic to learn the German cars been driving those all the time
your doing great keith considering the fast track enviroment you work in and limited time you have , at the point you spotted the green crusties i was so expecting a "well theres ya problem lady" , i guess thats what you get when youve watched alot of Erics vids , maybe you could drop it in on a future vid it will defo make a lot of people chuckle , great vid keep it up .
hey nbew question. why do you assume that black and white wire is an ignition power wire.... where does the rest of the line lead to in the diagram? if you can find out for sure and let me know what that black and white wire is i would really appreciate it
Great video thanks for Taking the time to do it, I have much the same problem with my S class w220, I think the control unit might be broken on mine .all the best from Scotland
It always takes so much longer to do anything when you decide to film it. Always trying for the shot so everyone can see what it is you are talking about. Thanks for taking the time and giving us all a front row seat.
Was wondering if you could tell me if a 2000 s430 amg would have the same wiring design. I can’t find anting one where the fan relay is or a power box like you have there
Thankyou so mutch for all your hard work to produce this video has really helped me get back on the road and get my autistic grand daughter to hospital apointments
Prefuses on veedubs, especially mk4 golf/beetles/jettas are constantly a source of headache. Don't see ogrish green death like that in the PNW but i see alot of arc damage from sub-quality fusible links..lotta parts have been changed in the name of not checking this area first
How many volts should be at number 5 on the prefuse every one is getting 14v except for the fan wire it’s only getting .50 volts and then drops and there’s no voltage at the connector and I changed the fan twice and still getting the coolant visit workshop on the dash
I see you're using a test light, glad to see my 'Top 3' video helped 😀It'a Always Something Simple when it comes to electrical. Great video Keith, keep at it 👍🏼
Nice and useful video. Thanks. I have a question. What is the direction of the air flow? Should it go inside the engine or outside? I connected my fan with external battery assuming that the red wire is +. The fan works and the airflow is direction from inside to outside which is a bit strange because usually the air flow of the wind is from outside to inside. Thanks.
@@NewLevelAuto indeed this is the case. However, I wonder how does this help? The air in the engine compartment is hot. So, we throw a hot air through the radiator. Furthermore, if the car is moving the two air flows go against each other.
You're a handy bloke to know. I have an e320 2003 w211. It's a nice motor. The temp has been fluctuating. It's just over 80° driving but on idle goes up to 100°. Left on idle it stays at 100° However twice it won't start hot. Need to let it cool down first. The fan works but as it's a variable speed fan could the problem be that it's just stuck at one speed and not going fast enough at idle to cool the engine down.ive put it in the garage today but No further forward. I can use it fine but I want it to run sweet as I've spent a grand on it lately just maintaining it. Cheers if you reply.
Hi Keith, nice vid, having kind of same problems here.. but wondering, if it was tthe front fuse, where would that be located? inside passengerside footweld? or somewhere else? Thnx
Just getting caught up on a 2 yr old video of yours (today is dec 2019) Wonder why bottom shield and fender wheel well insert/plastic are both missing? Hope they replaced them later on, or more issues to come. Great diag as always.
Great Video! Its really sad how many so called technicians are out there who can't diagnose something as easy as no power at the fan module! Always gotta check your power and grounds before replacing a component even if its a known failure component because 1 out of 100 times you may find a broken wire!
Good Point! I forgot about that, in school they actually tricked everyone. put a resistor on the power wire and it light with a test lamp. most everyone said it lit the test light. a few said hey that test lamp is kind of dim. they were teaching us the value of using voltage drop to test for some problems. But most of the time i use a high impedance test lamp, and if i want to be sure of a good power and ground ill use a head lamp bulb.
I have never heard my fan come on. I think this is the problem with my ML 63 AMG. I get check engine lights during the summer months only. During the winter months I have never had a check engine light. I will look into changing either the relay first then the wiring and the motor. Hopefully, that will resolve the issue of check engine lights throughout the summer months.
92 500sl cooling (aux) fan issue too. With air on stage 1 works. With air on stage 2 does not work. w/o air on fans do not come on stage 1... 95-100c does not come on at stage 2 107c? 92 does not have diagnostics capability like your video however did a diagnostic via air cond display in car...test mode A.. and noted a 10C different between coolant temp sensor and temp gauge on dash is it possible C sensor is malfunctioning? would that also prevent stage 2 with air on? OR a relay? I am lost
this video helped me determine the real issue with my radiator fan. I do have power to the connector cable, so I may need a fan. is there a way to check the fan itself or rebuild it?
Nice diagnostic lessons to be haved, last 42 yes dealers. and franchise's have been parts changers they would starve or close down but there is a plus gives real techs and honest ones like you guys and a like on YT work and demo your skills that are lacking in this industry which has been deemed rip off's and highway robbers, once a true tech along with mechanical skills costumers will be keepers rather than hopping garage to garage,, so those who call themselves Techs but really mechanics need to go back to school and learn how too proper diagnose these problems, thanks Keith for a wonderful lesson on how to be a true Tech and not just a mechanic, mechanics need to earn there badges by becoming a real Technician not by just a title that some mechanic call themselves, but authorized by those schools that provide such opportunities this is the future and cars are changing quicker than we can learn about diagnosing future problems we have no clue about as just being a mechanic ,and is my point, again good show Keith
jacob USA there are people I've seen out there that think that testing a solenoid is as simple as hearing it click, so I know the type you are referring to. What I can't understand is that with the wealth of ways to teach oneself nowadays that so many choose to use nonsensical methods in order to prove that they know something. I don't even teach a student that says the words "I know " more than once. The best way to learn is to admit that you don't know it all. On a bit of a ramble here ,but point is , take the good testing methods you see and apply them . There are some great guys doing great video like Eric , Ivan , Paul , Triangle, and so many others that each person should have a pen and pad handy at least to write down the titles of their videos and keep it near their toolboxes. I am glad you enjoyed my video and hope you'll like the others to come
New Level Auto in school one learns the basic and those want to pursue further education the automotive field take advantage what they can learn for free on YT yes eric paul Ivan keith Joe good source of fas diag, and in real time ,in school one gets basics once out in the field now there problems that where never duplicated in class because so many things can cause similar problems which may lead to the real problem source, automotive mech that have the basic now they need to get into the real world and finding a good work place that will apply training and begin an apprentiship, I started when 13 in 1972 today its has change 360 degrees we need to give them the chance to excell otherwise they loose interests and just have boxes collecting dust. BuT you guys make more fun even though frustrations at times , every car is a learning experience listen closely and ask questions when you don't now and this will show you're willing learn and then you will get help truly needed
Great video Keith and the explanation was clear enough that anyone should be able to follow along of what you are doing. I replied to your comment here because I see the same thing with new people at work that I train as new engineers right out of college. It still amazes me how management believes that someone with a degree is the almighty, supreme high intelligent being who knows all. And some of these guys don't even have any common sense and as you've mentioned, they pretty much know everything anyway. And what's more amazing is that there are some sharp guys on UA-cam and the information is there, but people still like to just change parts and couldn't care less of how stuff works. I know it takes a lot of time doing the videos, but it will pay off in the end as I'm sure there's still a lot of folks out there who would like to learn the correct procedure of diagnosing and how systems work. Have a good weekend Keith and don't work too hard.
Great video, thank you. I’ve a 2001 ML55 and I thought fan needed replacing. Car would overheat because fan not coming on. When I tested fan, it would come on momentarily and then turn off. Both new and old fan did same thing when connected. So could it be the thermostat sensor? Or what else could it be. Interior dashboard light comes on for the radiator on and off all the time. There’s no check engine light. Do you have any ideas please. Thank you for the great videos and for taking the time to respond.
Maic Salazar not anymore you don't. The new version is not nearly as good as the old blue box for programming and coding. As for datastream, bidirectional , and refresh rate the New unit wins . But honestly can do almost all of the same minus coding and programming faster using my launch. Plus the launch allows me to choose just the pids I want shown from a huge list
New Level Auto I had the launch Pad II and was not to impress, too many errors and lots of procedures that couldn't complete. It is an ok tool, I send it to my brother
Do you think a 2005 E320 CDI will be fairly similar in configuration for fuzes? My fan took a dump on me, and now it is getting warm, so time to get it fixed.
Thank you so much sir I put a brand new radiator and a brand new fan and module and my son 08CLS 63 AMG after it was real cold I was sitting in the parking lot at work and the radiator just blew coolant all over the place I told it home and have not been able to figure it out since the fan will just not work but this video is very helpful and tomorrow morning I will go out again and go under there and find the cable first I’ll find that power box and test it with my own meter that has power and I’m hoping that maybe something was ran over to and it’s a broken wireAnd it’s OK that I spent money on a plan and other things because I am learning thank you so much sir
Also I hear some other motor or fan running that is on the passenger side front corner behind a bumper I never heard this running before curious as to what it is
i have pin hole radiator leak, would this effect my fan? the fan is good but will not cycle on. ive checked fuses and relays changed thermostat ,water pump, hoses a coolant sensor on the motor(but not the one behind the dash yet)before i tear the dash apart could the cooling system not pressurizing properly stop the fan from recognizing the engine temp? the engine stays cool as long as im moving but stop and go traffic or sitting still for a few minutes cause overheating. its a 2000 c280
phil holbrook Hahaaa, yeah but still done in less than a half hour , and in between cuts finished a programming and found a parasitic draw using just a thermal camera
Good job, I have an issue with my fan, the car gives " Coolant visit workshop bla bla bla " when it reaches the fan operating time .. or when I run my heater .. confirmed that the fan is working fine, works when the temp goes near 100, works when both AC/Heater on ... ( don't know why it works with the heater but it happens ) .. upon checking the connector ( the harness ) I got 12v+ Red, 12v+ White black, Brown Ground, .. and 00.39 V on the green one ( Suspicious ) .. do you have any idea what is the right voltage for the green one ? .. and where exactly it goes to check from the source .. Thanks in advance :)
Glad that stuff didnt end up covered up. Good investigation skills by noticing stuff missing and looking there first saves time. Thanks for sharing your knowledge and I have a bmw to fix tommorow with a dash lit up like a christmas tree.
New Level Auto I figured it meant better open that wallet lol. Luckily this is a 735i and looks well taken care of so they should fix whatever it needs. Others that I see they want minimal repairs to get by.
+Jack S Absolutley love it , however I am still trying to find an otterbox style quality case that has no screen protection . Not as easy as I thought it would be
Great video Keith . Appreciate your time in making such an informative clip. We out in South Africa are starved for good wiring diagrams.Can you refer me to some sites that have wiring diagrams for European cars like the one that you used in this video.
Mervyn Naidu I am doing a little preliminary research and it seems that auto data offers the best wiring diagrams for your area. but I will continue to search
emanualonline dot com if you want "original" manuals and/or semi legal from the car maker
or if you are diy just one car person:
haynes.c o m/en-gb/car-manuals
i cant believe there were no voltage drop issues before this wire completely rotted away. you would think there had to have been. great video keith. love your procedures and how u track down problems man. u make it look easy and i certainly know it isnt.
Dylan Kinch I keep insisting that there had to be some type of an issue but the owner swears there was nothing . Either way fixed and I move along to the next one
Hey Keith, with all the "NEW" parts on the front of that engine it screams ACCIDENT to me.
would not surprise me one bit if that wire was pinched in the process and never fixed or it
was overlooked. Just saying
Even with a voltage drop which I believe would just mean a slower fan speed the ECM would just compensate by running it at a higher percentage? So unless you were sitting on a highway in traffic in high heat you may not have noticed anything.
Kevin Gallich I like the thought process , however even a higher percentage can not overcome the laws of electricity . Only x amount of current can get through y resistance with z amount of voltage supplied 😉
Pesty laws! Thanks for the knowledge. Stay safe!
Great video!! You have such a wealth of insight and knowledge, so glad Erick and Ivan talked you into doing videos. Your videos will definitely help a lot of people learning diagnostics.
Gregory Ellis glad you are enjoying them. Always feel a little funny making them , but I am glad to help anyone I can
@@NewLevelAuto where is your shop?I need some help..
Nice ! Keith, I like your style of diagnostics and vids. No drama, straight forward and plain common sense !
Billy R I kinda have to stick to that mindset with the number of cars needed per day. Thanks as always
You know Keith, it's all about the money ! Keep pumping them out ! Take Care !
Not gonna lie. One of the best mechanics out there. A lot of people will not bother what you did and probably Will tell the owner to replace the fan 100 times. Much respect, thanks!
Car newbie here trying to get my older Mercedes going again. I really appreciate how you just walked me through this process step by step with the diagram and testing the lines. I don't have any type of computer and I'm trying to fix this on my own, but I can't believe how easy you made something so complicated seem. Thanks
Thanks ! Best of luck on the restoration
Another nice and quick video, I feel like I am finally internalizing the proper and optimal methods for diagnosing.
Really appreciate the effort you put to get this videos online, really helps and encourage a lot of young techs like me to learn and become better
Very well done, Keith. Simple, straight forward and accurate diagnostics. I think twice about opening the hood on one of those turds.
Initially when I saw Mercedes cooling fan, I guessed fan control module, I've seen couple of them went south, and when I opened one of them, I saw exploded transistors, probably fan motor gets shorted inside and blows up transistors inside. Good diag video!
I am not an expert , BUT - if the car was running hot , you put in a thermostat , water pump and fan ? But you never check that the fan works - FIRST ? What if you ran jumper wires to it to see that it operates - why replace it ? Diagnosis VIA parts cannon ! Replace EVERYTHING - it's gotta work . We don't need no stinkin power ! How do they get away with it ?
I really do appreciate the videos. I've always been intimidated on working on electrical issues, but now notice there is a procedure everyone follows to trace down faulty wires. It really helps a lot. Thanks for the vids.
Juan Hinojosa my motto is "they are just machines" . They don't have feelings and they don't try to intimidate. In the end all it comes down to is basics .
Great video Keith. You make diagnosing potentially puzzling issues simple by breaking it down into logical steps. Keep up the good work!
Thanks for posting Keith, appreciate you taking the trouble to bring us along.
Thanks Keith for taking the time posting this! Less than 15 minutes (including filming) and problem solved - you're the man!!
Just ran into problems with green crusties on a wiring harness at work. it was an easy fix once I found it! nice work Keith!
thank you for making videos. it's great to have thinkers and not parts swappers showing what they do.
I forgot about all the corrosion seen on or in vehicles from the Northeast and upper Midwest states. I've lived in Southern California away from the coast, since 1976, but I do remember what the salt did to Massachusetts vehicles! Good diagnostic work!
Another great video from Keith, really like when show it all and there not edited to death I think viewers appreciate your time and effort A+
I can understand people calling on you for data com issues, but it's Unbelievable that a repair shop can't diagnose an open circuit on a power feed! ...Love your videos!
I need to get my ac looked at. I been putting in the DIY freon from Walmart but it never gets cold. Fan works and it cycles but stays hot.
You are very detailed in figuring out what is going on. Good job.
Thumbs up and shared.
A VIEW IS A VIEW I can find you a decent shop in Atlanta who will take care of you . Better yet come on up to NYC and we will fix it together.
I will be up in NYC /Jersey area sometime this year. That would be great.
I brought this 1998 Jeep Cherokee for 1200 bucks and have driven it for 4 years. I fix a little on it a time on it. #TeamNoCarNote.
Have a good day.
Great video. Surprised at clarity by using your phone. Short sweet and to the point and fixed. Nice!
You have just made Benz diagnosis so easy right there brother. Bigs up!
Wow, that's some quality green crustiness. So very nice of it to show itself off so clearly and out in the open! Nice work sir. Thanks for taking the time to share this!
Heck yeah that was a nice big puss sac!
Does anyone check for powers and grounds before replacing parts? Thanks for another interesting video.
Not part swappers. When they "diagnose" a vehicle, they pull the code and whatever component is mentioned gets replaced. In this case, it was the cooling fan. The fact that the code explicitly mentioned an open circuit was above their heads.
Andrew K lots of parts cannons loaded up at some shops. At least when it came to this shop he admitted not having proper wiring diagrams.
New Level Auto no diagram, there was a big red wire going to the fan! I feel bad for this guys customers.
I'm glad you started making videos Keith. Definitely enjoy them!
Dylan we will definitely address this after class😉😁
Excellent class today Professor. Thanks for your effort. You do an excellent job of explaining things.
Rick S awesome , glad you liked it!
The Green Crusties strike again! Great Video! Thanks for taking the time to make them.
Great vid Keith. Bloody Benzes and Beamers look so intimidating, like working on an alien spaceship. Loved the PC with the pen marker, perfect for tutorials!!!
The green crusties man.... Every time! Great vid Keith, I don't think you stumbled around too much at all!
I'm learning to hate Euro wiring diagrams. Why can't they just label stuff on the diagram, instead of the number/letter game? The last Volvo diagram I attempted to decipher had me ready to pull my hair out!
Great vid Keith, and THANKS for posting it!
Excellent! I wonder how many parts they threw at that car before you did a proper diagnosis?
good video keith.... its like automotive classes at your fingertips
What a fantastic video.. I have a c200 kompressor that was giving same problem. I followed all your advise and I was able find the problem.. Funnily on the drivers side close to the right foot under the mat
Very cool. I have a similar issue on my 08 CLS. Shop wants $1100 to change the fan. Seems super high based on my research. I will investigate it more like you have shown.
Excelent video…
I had similar issue twice in my C230. In my case was failure of the fun. Maybe because I live on a hot weather are in which summer 120 degrees is normal I assuming inside the Engine it should way higher makes the fan to fail. I seen at least one video in the net in which one person open the fan ( had to cut enclosure fix it and glue it back) and found cold solder on some capacitors that reflow of the solder fixed. I ask to keep the old fan so when I find time I will open it and double check if that is the case.
But 100% correct if the fan don’t work the AC fail to work also.
Thank you
Thanks for the video Keith, much appreciated over the pond in Ireland.
It's New York. Maybe they drove over a body and something caught on the harness.
Nice video. Thanks. Between you and South Main Auto, I'm really learning how to use the test light.
Garth Goldberg glad to know they are helping people . Makes it all worthwhile. Thanks for the input
Very informative. My CLK320 is doing the same thing so researching diagnostic procedures and appropriate fix. At least I know what the module looks like now and the prefuse! Back to the drawing board!
Great Job Keith! You explained everything very well :)
One Auto, thanks Rob , I know it wasn't the most interesting but practicing on making these videos will get me there soon
You're doing a great job. It takes extra time out of your day to do these, and when your busy already it can be difficult 🍻(that's 2 beers)
Thanks for another great video Keith
You definitely have a gift for explaining, you would be a great teacher.
I did like the long pause before the fan operated itself ;-)
Please keep then coming
thanks for taking us along I appreciate the videos, I'm not a mechanic but I like to have a basis of knowledge when I talk to my mechanic... or at least know enough to be dangerous.
Thank you for making this video. Its not as complicated as I presume since I don't work on a lot of euro vehicles. keep up the good videos and explanations.
Thank you for your time in making these videos, it is very much appreciated
Awesome to see your doing videos now Keith! Keep up the good work!
+tankabbot22 many thanks for watching
Keith how do u like the 431idiag ? I see it programs Honda keys, replaces Tcm pcm with no pin code needed . do you know if it can program keys for Chrysler dodge ? is it good for shop use . we dont mess with bmw Audi vw so really just the American cars
+dassme1 yes programs Chrysler keys as well as long as you have the skim number
New level u couldn't have explained any direct than what you explained! Great tutorial. I on the other hand am a do first then explain. Not gifted in that area i suppose. However once i put hands on any of the jobs take from customers. They are all ways satified. Oh one other thing ..... A quick fix sometimes is as good or if not better than the right way. Find myself in that situation often. however i do warn the client about the temp fix and so on.. Keep up the good work
Mech. Pro. Also when u located the problem there was no one to cheer u on. self satifaction! But i shared the joy with u! i know the feeling its as if God came down and touched u on the shoulder.And the moment that fan kicked over! Exciting! My GF doesn't see as exiciting. Up until i told her to take her benz the work shop! LOl!!! Keep at it my friend the Mech Pro Gods are their with you!
All of these comments are talking about the same thing but they don't realize it. What Eric, Ivan, and Keith have in common, which VERY FEW auto mechanics have is PASSION for their profession. When you bitch about parts changers and hacks and people that don't give a shit vs. these guys that's the difference. Are these guys motivated by money, of course they are, but they truly like what they do for a living. I was the some way with Semiconductor R&D and Manufacturing. I loved that shit. Did they pay me a lot of money to do what I loved to do anyway, YES. But making electrons do what I needed them to do is what I lived for. When you're just going to a job that's paying your bills you never put the effort into it that you do when you're doing something you love. The primary job of high school should be exposing students to as many different professions as possible so that a kid can pick the one he's going to do for the rest of his life and enjoy it. Instead they throw him out the door after graduation and hope that he finds something. Another failure of the American educational system.
SATAMAN Schmidt very well put as always. And I agree , teach them about the things they can use to have a successful career. I think you should do a live video about just this topic !
Who'd have thought, crusties down there. Good methodical diagnosis !!
Tom OConnor Surprising that it didn't show some issues before the wire completely rotted away.
nice job. Your logical step by step process is explained well and easy to follow. Some quality crusties in that cable 👌
Badgertronix if you enjoyed it , then I am happy . Cheers!
Fantastic explanation with the wiring diagram and circuit. I think it is wonderful to help us who's watching thank you for the videos and your time I try to compensate for your help trough paetron and hope a lot of people also do the same.
For me, it is fantastic to learn the German cars been driving those all the time
g johan it is really appreciated that you would contribute not only monetarily but also with your kind comments . Thank you again for your support
your doing great keith considering the fast track enviroment you work in and limited time you have , at the point you spotted the green crusties i was so expecting a "well theres ya problem lady" , i guess thats what you get when youve watched alot of Erics vids , maybe you could drop it in on a future vid it will defo make a lot of people chuckle , great vid keep it up .
chris90 had I not had the customer (Not shop owner) 15 feet away I could have had a lot more fun with this one . Thanks for watching
Legendary turning point phrase right here gentlemen: "And... I see red"
hey nbew question. why do you assume that black and white wire is an ignition power wire.... where does the rest of the line lead to in the diagram? if you can find out for sure and let me know what that black and white wire is i would really appreciate it
Great video thanks for Taking the time to do it, I have much the same problem with my S class w220, I think the control unit might be broken on mine .all the best from Scotland
It always takes so much longer to do anything when you decide to film it. Always trying for the shot so everyone can see what it is you are talking about. Thanks for taking the time and giving us all a front row seat.
keep making the vids . one thing i have never been good at is auto electrical . im learning a lot between you and Eric thank you
Why has it taken me this long to realise Keith has his own channel! now i have loads of catch up to watch! :))
I don't think I will ever own a Mercedes, but that doesn't matter. This type of troubleshooting applies to any car. Thanks
How would you test the ECM and the ignition start wires?
Sorry, meant to say ignition input. How would you be able to test these wires? I'm not a mechanic so layman's terms would be greatly appreciated.
Great video Keith. My question how do u get those disgrams.dont look alldata. Every video keeps getting better and bettet
Jason Chavez wow and this was an old one . Yes it was Alldata or Identifix which copies the oe diagram
Somebody missed the basic electric class....
Great job like always Keith..
man i have the same issue with A150 will try it tomorrow you are the best
Kind of disappointing that the shop couldn't find that. Buts thats where you come in lol Good find
Was wondering if you could tell me if a 2000 s430 amg would have the same wiring design. I can’t find anting one where the fan relay is or a power box like you have there
Thankyou so mutch for all your hard work to produce this video has really helped me get back on the road and get my autistic grand daughter to hospital apointments
Awesome video. Glad I found you through SMA.
Prefuses on veedubs, especially mk4 golf/beetles/jettas are constantly a source of headache. Don't see ogrish green death like that in the PNW but i see alot of arc damage from sub-quality fusible links..lotta parts have been changed in the name of not checking this area first
How many volts should be at number 5 on the prefuse every one is getting 14v except for the fan wire it’s only getting .50 volts and then drops and there’s no voltage at the connector and I changed the fan twice and still getting the coolant visit workshop on the dash
I see you're using a test light, glad to see my 'Top 3' video helped 😀It'a Always Something Simple when it comes to electrical. Great video Keith, keep at it 👍🏼
The Homie Hektor never even knew what one was until I saw your video! Thanks 😉.....for stopping by
New Level Auto Ha! The knowledge is spreading 🙌🏼 Too funny 😂
Nice and useful video. Thanks. I have a question. What is the direction of the air flow? Should it go inside the engine or outside? I connected my fan with external battery assuming that the red wire is +. The fan works and the airflow is direction from inside to outside which is a bit strange because usually the air flow of the wind is from outside to inside. Thanks.
Yes it should definitely blow towards the radiator
@@NewLevelAuto indeed this is the case. However, I wonder how does this help? The air in the engine compartment is hot. So, we throw a hot air through the radiator. Furthermore, if the car is moving the two air flows go against each other.
You're a handy bloke to know.
I have an e320 2003 w211.
It's a nice motor.
The temp has been fluctuating. It's just over 80° driving but on idle goes up to 100°.
Left on idle it stays at 100°
However twice it won't start hot.
Need to let it cool down first.
The fan works but as it's a variable speed fan could the problem be that it's just stuck at one speed and not going fast enough at idle to cool the engine down.ive put it in the garage today but No further forward.
I can use it fine but I want it to run sweet as I've spent a grand on it lately just maintaining it.
Cheers if you reply.
You guys on the on the East coast have all the fun with green crusties.
Hi Keith, nice vid, having kind of same problems here.. but wondering, if it was tthe front fuse, where would that be located? inside passengerside footweld? or somewhere else?
Thnx
it's amazing how simple things are over looked.good work.
Just getting caught up on a 2 yr old video of yours (today is dec 2019) Wonder why bottom shield and fender wheel well insert/plastic are both missing? Hope they replaced them later on, or more issues to come. Great diag as always.
Great Video! Its really sad how many so called technicians are out there who can't diagnose something as easy as no power at the fan module! Always gotta check your power and grounds before replacing a component even if its a known failure component because 1 out of 100 times you may find a broken wire!
daveyio87 keep in mind that it's also HOW you check the power. If you used a volt meter and 2 strands of wire were still good what would you read ?
in that case wouldn't there be some voltage only reduced due to higher resistance? Great vid. Thanks for your time and also the comments.
Good Point! I forgot about that, in school they actually tricked everyone. put a resistor on the power wire and it light with a test lamp. most everyone said it lit the test light. a few said hey that test lamp is kind of dim. they were teaching us the value of using voltage drop to test for some problems. But most of the time i use a high impedance test lamp, and if i want to be sure of a good power and ground ill use a head lamp bulb.
I have never heard my fan come on. I think this is the problem with my ML 63 AMG. I get check engine lights during the summer months only. During the winter months I have never had a check engine light. I will look into changing either the relay first then the wiring and the motor. Hopefully, that will resolve the issue of check engine lights throughout the summer months.
You are not answering the question where is the fuse boxes for the 1985 380se Benz?
92 500sl cooling (aux) fan issue too. With air on stage 1 works. With air on stage 2 does not work. w/o air on fans do not come on stage 1... 95-100c does not come on at stage 2 107c? 92 does not have diagnostics capability like your video however did a diagnostic via air cond display in car...test mode A.. and noted a 10C different between coolant temp sensor and temp gauge on dash is it possible C sensor is malfunctioning? would that also prevent stage 2 with air on? OR a relay? I am lost
Yeah videos are a lot of work but you are doing great, keep up the good work.
this video helped me determine the real issue with my radiator fan. I do have power to the connector cable, so I may need a fan.
is there a way to check the fan itself or rebuild it?
Nice diagnostic lessons to be haved, last 42 yes dealers. and franchise's have been parts changers they would starve or close down but there is a plus gives real techs and honest ones like you guys and a like on YT work and demo your skills that are lacking in this industry which has been deemed rip off's and highway robbers, once a true tech along with mechanical skills costumers will be keepers rather than hopping garage to garage,,
so those who call themselves Techs but really mechanics need to go back to school and learn how too proper diagnose these problems,
thanks Keith for a wonderful lesson on how to be a true Tech and not just a mechanic,
mechanics need to earn there badges by becoming a real Technician not by just a title that some mechanic call themselves,
but authorized by those schools that provide such opportunities this is the future
and cars are changing quicker than we can learn about diagnosing future problems
we have no clue about as just being a mechanic ,and is my point,
again good show Keith
jacob USA there are people I've seen out there that think that testing a solenoid is as simple as hearing it click, so I know the type you are referring to. What I can't understand is that with the wealth of ways to teach oneself nowadays that so many choose to use nonsensical methods in order to prove that they know something. I don't even teach a student that says the words "I know " more than once. The best way to learn is to admit that you don't know it all. On a bit of a ramble here ,but point is , take the good testing methods you see and apply them . There are some great guys doing great video like Eric , Ivan , Paul , Triangle, and so many others that each person should have a pen and pad handy at least to write down the titles of their videos and keep it near their toolboxes. I am glad you enjoyed my video and hope you'll like the others to come
New Level Auto
in school one learns the basic and those want to pursue further education the automotive field take advantage what they can learn for free on YT yes eric paul Ivan keith Joe good source of fas diag, and in real time ,in school one gets basics once out in the field now there problems that where never duplicated in class because so many things can cause similar problems which may lead to the real problem source,
automotive mech that have the basic now they need to get into the real world and finding a good work place that will apply training and begin an apprentiship, I started when 13 in 1972 today its has change 360 degrees we need to give them the chance to excell otherwise they loose interests and just have boxes collecting dust. BuT you guys make more fun even though frustrations at times ,
every car is a learning experience listen closely and ask questions when you don't now and this will show you're willing learn and then you will get help truly needed
Great video Keith and the explanation was clear enough that anyone should be able to follow along of what you are doing. I replied to your comment here because I see the same thing with new people at work that I train as new engineers right out of college. It still amazes me how management believes that someone with a degree is the almighty, supreme high intelligent being who knows all. And some of these guys don't even have any common sense and as you've mentioned, they pretty much know everything anyway. And what's more amazing is that there are some sharp guys on UA-cam and the information is there, but people still like to just change parts and couldn't care less of how stuff works. I know it takes a lot of time doing the videos, but it will pay off in the end as I'm sure there's still a lot of folks out there who would like to learn the correct procedure of diagnosing and how systems work. Have a good weekend Keith and don't work too hard.
Great video thanks for taking the time to capture some of your work it's much appreciated all the way to n.ireland
Great video, thank you. I’ve a 2001 ML55 and I thought fan needed replacing. Car would overheat because fan not coming on. When I tested fan, it would come on momentarily and then turn off. Both new and old fan did same thing when connected. So could it be the thermostat sensor? Or what else could it be. Interior dashboard light comes on for the radiator on and off all the time. There’s no check engine light. Do you have any ideas please. Thank you for the great videos and for taking the time to respond.
Nice video. Easy to follow. Logical and fast. Thumbs up!
Sandbag1300 thanks for watching. We have to stick to simple sometimes in order to not lose track of our goals
Great video my friend! Good diagnosis procedure! I want an Autologic!!
Maic Salazar not anymore you don't. The new version is not nearly as good as the old blue box for programming and coding. As for datastream, bidirectional , and refresh rate the New unit wins . But honestly can do almost all of the same minus coding and programming faster using my launch. Plus the launch allows me to choose just the pids I want shown from a huge list
New Level Auto I had the launch Pad II and was not to impress, too many errors and lots of procedures that couldn't complete. It is an ok tool, I send it to my brother
Maic Salazar then make me your adopted brother!
been looking forward to your next vid. your putting out some great stuff Keith...even the famous Eric O is chiming in...
Javier Rocha thanks very much, and he is just keeping tabs on me so I don't surpass him 🤣(like that could ever happen)
Do you think a 2005 E320 CDI will be fairly similar in configuration for fuzes? My fan took a dump on me, and now it is getting warm, so time to get it fixed.
Thank you so much sir I put a brand new radiator and a brand new fan and module and my son 08CLS 63 AMG after it was real cold I was sitting in the parking lot at work and the radiator just blew coolant all over the place I told it home and have not been able to figure it out since the fan will just not work but this video is very helpful and tomorrow morning I will go out again and go under there and find the cable first I’ll find that power box and test it with my own meter that has power and I’m hoping that maybe something was ran over to and it’s a broken wireAnd it’s OK that I spent money on a plan and other things because I am learning thank you so much sir
Also I hear some other motor or fan running that is on the passenger side front corner behind a bumper I never heard this running before curious as to what it is
Well done, Keith! If I didn't know better, I'd think you've been making vids for years. Thank you for sharing.
bill billl Thanks so much! Glad you like them
i have pin hole radiator leak, would this effect my fan? the fan is good but will not cycle on. ive checked fuses and relays changed thermostat ,water pump, hoses a coolant sensor on the motor(but not the one behind the dash yet)before i tear the dash apart could the cooling system not pressurizing properly stop the fan from recognizing the engine temp? the engine stays cool as long as im moving but stop and go traffic or sitting still for a few minutes cause overheating. its a 2000 c280
Focusing on that emblem reminded me of the rolls royce theft proof emblem. If you haven't seen it, search it on youtube...it's worth a watch.
ahhh the minute man finally lasted 19:00 minutes good work!
phil holbrook Hahaaa, yeah but still done in less than a half hour , and in between cuts finished a programming and found a parasitic draw using just a thermal camera
Good job, I have an issue with my fan, the car gives " Coolant visit workshop bla bla bla " when it reaches the fan operating time .. or when I run my heater .. confirmed that the fan is working fine, works when the temp goes near 100, works when both AC/Heater on ... ( don't know why it works with the heater but it happens ) .. upon checking the connector ( the harness ) I got 12v+ Red, 12v+ White black, Brown Ground, .. and 00.39 V on the green one ( Suspicious ) .. do you have any idea what is the right voltage for the green one ? .. and where exactly it goes to check from the source ..
Thanks in advance :)
what exactly was that temporary fix? what did you do to the wire to get it to respond?
Glad that stuff didnt end up covered up. Good investigation skills by noticing stuff missing and looking there first saves time. Thanks for sharing your knowledge and I have a bmw to fix tommorow with a dash lit up like a christmas tree.
Techman 48917 that's an option that they dont charge you for when you buy one 😁
New Level Auto I figured it meant better open that wallet lol. Luckily this is a 735i and looks well taken care of so they should fix whatever it needs. Others that I see they want minimal repairs to get by.
Please tell me when you went under the car, That wire hanging down!! I have that too!!
Do you charge a flat fee per vehicle? Discount if there's more than one vehicle at a location?
Hello, could you tell me at what temperature the fan of this car turns on?
How do you like the surface for diagnostic work vs a normal laptop? Been eyeing one to replace my trusty dell.
+Jack S Absolutley love it , however I am still trying to find an otterbox style quality case that has no screen protection . Not as easy as I thought it would be