Mercedes C250 ECU Diagnose Test and exchange fix

[@sterling6860]

Great Video,,my ECU just conked out ,had it in one garage for 4 weeks..they could not diagnose it, so I found a guy locally,,came to my house found the problem in 1 hour confirmed the problem took it out and sent it out for repair,,50 years working on cars trucks mining equipment and this was the first time I could not fix my own car,,its only a vauxhall mokka,,thank God for guys like this.

[@davelee-00]

Great video. Why are people like you that know their stuff, so hard to find?

[@speed6725]

Because the good ones are like finding a needle in a haystack

[@MatthiasBehm-jz1wl]

Remember never trust multimeter use a test light to put load on the wire

[@TheTiger4787]

You did an excellent job Bossman. This really requires some patience to accomplish what you did. Great Job!

[@hayyanhendawi7534]

Amazing video, not like all junk cars videos on the internet. Respect for that. I wish you the best.

[@R5GTT]

Excellent work mate, I remember when we did my Audi TT mk1 immobiliser delete for the first time and got my car running again 😊👍🏽

[@johnnykish2904]

Damn it man thank you so very much! The best most informative video I've seen! My Mercedes has been in my driveway for 6 months! I'm going to fix it today!

[@liam-wm6ut]

You certainly know your stuff mate, another cracking video

[@Republic-Of-Me-Travel]

why the bugger do they put an ecu right next to the engine...just so it cooks slowly ?

[@djosbun]

Very good diagnostic video! Cheers from Cincinnati, Ohio, USA.

[@TheHalz12]

Hello! This is a very detailed video. Highly appreciate it! I was wondering if it were possible for you to let us know the tools you used?

[@cali_cal]

good stuff. going to check the ecu too. hopefully it just dirty connector or something

[@bobbymike]

Nice job mate professionally carried out 😊

[@OTHMAN_OV]

very good video but i wnat to understand . the pins 94 and 95 they should get 12v from fuse box im i correct ? since the pin 3 get 12v from the same relay , the pins 94/95 they should get the same not from the ecu 18:17

[@fridayjacob1574]

You did a great job there. Can you help me get the wiring diagram you're using for this troubleshooting? It makes the work easier.

[@MechanicTechnicianRepair]

Experience diagnosis master nice video

[@raptor9118]

You can check the engine nummer and some other usable information in the Secret menu over the Cluster module.

[@reysonchama9151]

I like the way explain every detail thumbs up, I now it's not that easy,wish we could link up some day

[@siobhainwalker4161]

21:02 Hi I’m after some advice or possible service I have a Mercedes 220 cdi 2009 It’s had a steering lock replacement with an emulator which seems to be ok and clicking . We have the ignition back but hers a list of things that don’t work . I’ve tested fuses and relays which seem to be fine apart from fuse 22,23,24,25 which I think connect to the ecu . The steering wheel functions don’t work and wipers . Please see the codes I’ve got when plugged in and cleared .

[@SbusisoMaseko-m5q]

Where do get this wiring diagram?

[@nuradamuye1824]

Sir, I want to ask about the Mercy W212 E250 car, the ignition on the coil does not produce a spark and does not come out

[@nuradamuye1824]

If you look at the scanner, there's no problem with the ECU. Why doesn't the car start ignition?

[@iyokeobinna2363]

Weldon sir, professional carried out

[@ajazshaikh1178]

Hi, I loved your video and detailed explanation and you were able to install another ECU that was great. My question is that why you did NOT change the VIN number since the car VIN is different from ECU......I have swapped ECU on 2001 Mercedes C240 via pro and the car runs & drive however, ECU VIN has 'nt been changed tp match car's VIN and hence I can 't get the inspection passed. I am in NYC and unable to find someone who would write VIN. Also, I can't find a scanner that will do this for this old Mercedes. Any suggestions.....Please let me know. Many Thanks!!

[@thefix9823]

Hi, you can do it with svci 2020 which used to be called fvdi

[@ajazshaikh1178]

@@thefix9823 Thank you so much for replying…..not familiar with ‘svci2020'. I found it online but I have to make sure that it will write VIN for 2001 Mercedes c240 before I purchase. I also saw free download of svci2020.....wonder if that can do the job. Thanks!

[@JosephAdjakofi-ol1wg]

Thanks for this professional video. I would like to join the training team 😊

[@thesmartguy3523]

Now you'll need to unlock the radio as well since control units with different vins were put on the vehicle, simple to do with vediamo, also vin and correct scn/variant coding can be done without online access 😉

[@thefix9823]

Hi, that car came to me with replacement Radio already fitted, I was going to code the vin into it for him, but none of my diagnostic could do it. I have got vediamo, but I have never used it. Thanks for the advice. I am going to learn how to use it. If you can give me some tips on how to use it, that will be great. Thanks in advance, Nav.

[@thesmartguy3523]

@@thefix9823 As for the radio part, you'll need to read the serial number using xentry, then send it for calculation, you can post it here and I can calculate it for you, then you'll need to enter the code using vediamo as there is no way to do so using xentry. There's also tools that are able to handle reading the serial number and generating the code without xentry/vediamo and STAR/C4, but you'll need a J2534/PASSTHRU for that, possible to use C4 but I'm not sure it's fully compatible

[@TauraiNdudzo]

That's powerful lesson

[@johnndlovu469]

Will anything go wrong if you have swopped around the two cables on the prefuse panel that are held by the number 10 socket.

[@whitefox9]

Where do you get those wiring diagrams online

[@tarikcurkus6497]

Thank you for this video. I have a question if you could answer. There is a ticking noise from engine when the engine is off. And the obd device shows P68501 fault code. The engine ticking started after dpf delete remap. The question is; Is my ecu or power relay is malfunctioned? Or is it related to wrong configuration? Much appreciated if you could answer

[@faroukkhan6777]

Excellent job sir 👌i got Honda Jazz,, OBD2 scanner saying error in communication with ECU, any thoughts thanks

[@jaimerivera8687]

Hi need help, now it wont crank, ignition relay goes on/ off and the cooling fan goes in high, even with the ignition off, could it be the ecu,?

[@jaimerivera8687]

Hi nice job, I have a c250 2013 with a problem in start up, it starts misfire, in cylinder 123 I turn it of and it gets better turn off again and only 1 misfires, then wait temp. to rich 60c turn it of and on again and it work great, no code only the misfire and p0705, the fuel pressure is 2k in starting and in idle is around 800 to 900psi I incline that it is injector, any advice? thanks

[@thefix9823]

Hi you might have a problem with the wiring loom on the injectors or dry joints inside the engine ecu or ecu plugs.might not be getting a good connection unplug and check for corrosion.

[@mindinterventions456]

Very very helpful - Thank You

[@mindinterventions456]

Brilliant - Very Helpful

[@zinouvar692]

Great goob man🎉🎉❤❤

[@reynauldayson]

From where are you in UK?

[@MyChayne]

Stupendous work 🎉

[@afifmalhas2628]

hello according to your wiring diagram when you jumpered manually the fuse and the cannon plug was disconnected on ecu modual you should have read voltage on pin 94&pin 95 .unless if you had open circuit also .repeat cannon plug disconnected. i do see what you said when you plugged in the connector you had no voltage due to shorted cuircuit in ecu on pin 94,95. another word i don't see it when the plug was disconnected and you jumpered the fuse you had no voltage on those pins even though is direct wire to plug.

[@thefix9823]

Hi, for pins 94 and 95 the voltage comes threw the ecu to the wiring loom because the ecu was faulty I was not getting the voltage the bit of video of me checking that got deleted and I only found out that clip was not there when we were editing the video so it was to late to film it again Very good observation by you

[@afifmalhas2628]

@@thefix9823 good morning thx for your response i do understand that but excellent video i did study electronic thats what i observed was something wrong there.

[@juliandodwell8213]

Genius . Well done on a great video.

[@bakerqahwaji983]

hi sir thank you for video can you help me with this.. issue I have e350 2007 code. p0412 I Chek and test every thing finally I change ecu but the cood still in can you help me pls thanks

[@alangurley4152]

HEY FRIEND, GREAT VIDEOS I HAVE LEARNED MUCH FROM THEM, I AM INTERESTED IN AQUIRING A MB STAR XENTRY DIAGNOSIS SYSTEM (I HAVE A PROJECT 2009 R230 SL550) IS YOUR XENTRY A BYPASS OR OPEN SHELL TYPE, IT IS VERY CONFUSING, I WANT A STAND ALONE NON-SUBSCRIPTION VERSION PLEASE ADVISE, PERHAPS A FUTURE VIDEO ON THE SUBJECT?...CHEERS!

[@TauraiNdudzo]

I need help I have2014 audi A3 crank but not statin

[@nathanielrodriguez7539]

This man out here doing gods work

[@acanul02]

Very helpful video!

[@abdalgadermohamed5636]

very nice sir ❤

[@MFA1999]

Great video as always

[@generalgriphineworldboss1811]

Where do you get wiring diagram

[@dtnel]

DO NOT poke your text lead in the plug connector as this can and will cause intermittent pit tension”fitment” issues. Only lightly touch or backprobe on back side of connector which is preferred method.

[@asid731]

Do the keys also have to be programmed?

[@dbecket]

Do you have a pdf of that schematic?

[@zakshafi7595]

Excellent video bro 😀

[@whitefox9]

Can you now go and alter the chassis number to the vehicle's chassis nuver

[@jaimerivera8687]

Thanks for your fast response, for sure I will try your recommendation, today I made a test by disconnecting coil in 4 cyl. because is the only one working at startup, doing this the car didn't wanted to start, in the fifth intend it started with 2 and 3, 1 is the one that takes longer to work, then I connected 4 and didn't work, turn off and waited a few second and started again and work. for cyl 1 I did the same procedure but waited a minute or 2 and started and everything working find with strong fuel odor. for me it could be injector leaking or clog injector, also I have strong fuel odor in oil dip stick or wend replace. what do you think ?

[@nelsonmaldonado7094]

I have a c300 09 thottle body start making a Noise after turned off the car also drains the battery any idea please someone tell me could be the ecu

[@thefix9823]

Hi, try disconnecting throttle body plug and then check if the battery drains.

[@nelsonmaldonado7094]

@@thefix9823 yes sr I already did that and I still hear a soumd Like something keep awake the relay I disconnect the plug for the ECU and stop making the sound

[@curlymyhero]

Great video but still confused. 3 or 4 pins on the harnesses didn't have power/ 12v. So you jumped the wires. But power to the harnesses come from fuse box which was good including relays. So where did you get 12 v. back to the harnesses?? The Ecu was bad but they get 12v from fuse box. Subscribed anyway

[@abus9669]

Where are you based? I need help with my Mercedes?

[@samuelolujimni]

You know your stuff Sir.. I could do with your help please

[@thefix9823]

Hi, what do you need help with?

[@lopezautotechtips568]

What kind of program do u use for wiring diagram? Need what u using.

[@thefix9823]

Hi, I used Autodata wiring diagrams on this car

[@thesmartguy3523]

@@thefix9823 why use autodata ? Since you have xentry, it didn't come installed with WIS/ASRA ?

[@cali_cal]

@@thesmartguy3523 win/asra was pain in the ass. didn't work for me

[@ericwalker6543]

Where did you find ecm

[@skippyone3085]

However the vin no is not correct ? And now you cannot alter it What did it all cost ????

[@SOHAIL50280]

Hi sir where are get wireing digram

[@sciencegod1]

Is there anyway to get the correct vin of the car?

[@thefix9823]

Hi, if you can get some kind of programmer that would read that ecu, then you can change the VIN

[@ebrahimsadeghi5883]

Helpful vedio God bless

[@yoelelyou]

good afternoon sir, a pleasure to greet you I have the same problem with a car that is the same as the one in the video with the same symptoms I did all the tests that you do there and if the results are the same the only difference in this car is that the cooling fan is always Its on. My question is, could the same fault in the ecu cause that?

[@thefix9823]

Hi, if the ecu is faulty, the fan will stay on in some cars.

[@KenneRobreto]

How can I have the Mercedes program

[@hartechservice2715]

Pin 5 positif or eart?

[@edwardlacson2592]

Ignition switch won't on ,replacement coil

[@lilp7632]

Thank you, sir

[@rabiuquadri6546]

Can wiring diagram from you

[@ronaldhernandezsanchez]

Diagrama?

[@menarentlogical]

What's the year of this C250?

[@thefix9823]

Hi, it's a 2011 model

[@iamasmurf1122]

I just looked up those SD connect tools LOL they are not cheap ... not worth programming it yourself just find this guy and get him to do it or someone that can

[@hartechservice2715]

Can i buy those wiring

[@thefix9823]

Hi you can get on Autodata

[@hartechservice2715]

@@thefix9823 I experienced the same problem on a SLK 250 car

[@thefix9823]

Hi I find this problem only on the continental ECU'S

[@hartechservice2715]

@@thefix9823 finally .. What the problem your ECu

[@aymenmohamed1134]

👍👍

[@pyro8894]

I plugged my ecu in with no programming

[@pyro8894]

Right? Like you really don’t need to you can have it still start that way right ?

[@BaljitSingh-dl1yw]

Hi sir

[@iamasmurf1122]

you are probably lucky that jump car did not surge and blow that new ECU ... i did not see no surge protectors on those battery cables .. the other thing i see ... you wasted a lot of time in diagnostics testing things that really did not need testing ... the scan codes should have been enough to replace that ECU and just program it

[@kalulukakaluluka9497]

Wrong Tools, Wrong Diagram and pinching wires like that, means: later moisture/corrosion damage to them......

[@droneworld2312]

Boring

[@seymurqehremanov3651]

👍👍👍👍

[@seymurqehremanov3651]

👍👍👍👍