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We've decided to buy an indie's 2001 E220 CDI, and the ESP BAS module seems to need replacement(backing out of the deal isn't an option, just putting that out there). I've stumbled across a car breaker store on ebay U.K named apexcarbreakers, and matched the part numbers. When asked about whether I need to reprogram the module, they've said that I do need to reprogram the module(costs 27 GBP). Another seller by the name "bestpartsforu2" has replied that it needn't be programmed(costs 10 GBP). Unfortunately, my quest for an answer on google has proven unfruitful. When he said that it needs to be reprogrammed, does he mean that I need to recaliberate the steering wheel lock to lock? Or could it be something more complicated than that?
 

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From Startek:


"After replacing either the ESP/SPS control module (N47-5) or the brake booster (A7/7), it is absolutely necessary to perform an adaption of the ESP/SPS control module (N47-5) as well.
The ESP/SPS control module (N47-5) has to learn the values for the BAS solenoid valve (A7/7y1), see HHT menu."


So it needs to be programmed or adapted to the existing environment.
 

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Discussion Starter #3
From Startek:


"After replacing either the ESP/SPS control module (N47-5) or the brake booster (A7/7), it is absolutely necessary to perform an adaption of the ESP/SPS control module (N47-5) as well.
The ESP/SPS control module (N47-5) has to learn the values for the BAS solenoid valve (A7/7y1), see HHT menu."


So it needs to be programmed or adapted to the existing environment.
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Is it, by any chance easy enough to do it myself? I recall a member of this forum asking if he could just plug it in and letting the module "learn" the car. Another answer was "they should be a straight swap if you want to change it and that you know your current one. Most control units on W210 are not really programmed or coded. You just have to make sure that the MB and Bosch part numbers match. You may have to recalibrate the steering wheel lock to lock afterwards to clear the lights and erase the fault memory on diagnostics". Thoughts, please. Are there any sources for these procedures(maybe service manuals and such)? It would be much appreciated if anyone can point me towards such sources. I can't seem to find any on google. Searching the forums for this particular topic had the same result too.

Also, can the ESP BAS module of an estate be used in a sedan with no problems, since the dynamics of an estate and sedan are a little different?

Thanks in advance
 

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Opinions are like "**sholes", everyone has one :).

ESP, BAS, ASR, and any other traction control systems, when malfunctioning, can cause accidents, injuries, and even death. So, anyone making such claims, in my opinion, is blurting out nonsense.

If there were any adaption procedures (apart from the steering angle) that can be done by the OWNER, these procedures would have been available. It is possible in some cases, the ESP will not need adaption (will not cause BAS fault and disable ESP) if the stored solenoid valve matches the actual reading. Else you wil have a ETC fault which have to use a special tool like the MB SDS C3/C4 or equivalent to reset the code AFTER the adaption procedure done by the same scanner.

BTW, what makes you think that the ESP module is bad ? There are many reasons that the ESP warning status can pop up on the dash. Has the car been scanned by the indie ? Do you have a printout that shows fault codes from each of the modules ?

Since your car is a non-USA car, I do not know whether there is difference between the same model/year estate and sedan ESP functions. There is a difference between 4matic and non-4matic versions that applies to ASR equipped models. Not sure about the ESP equipped models.

If you are buying it from the indie, he should have the proper equipment to diagnose and fix the issue. The problem could be as simple as a bad battery / charging system.
 

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Opinions are like "**sholes", everyone has one <img src="http://www.benzworld.org/forums/images/smilies/smile.gif" border="0" alt="" title="Smile" class="inlineimg" />.

ESP, BAS, ASR, and any other traction control systems, when malfunctioning, can cause accidents, injuries, and even death. So, anyone making such claims, in my opinion, is blurting out nonsense.

If there were any adaption procedures (apart from the steering angle) that can be done by the OWNER, these procedures would have been available. It is possible in some cases, the ESP will not need adaption (will not cause BAS fault and disable ESP) if the stored solenoid valve matches the actual reading. Else you wil have a ETC fault which have to use a special tool like the MB SDS C3/C4 or equivalent to reset the code AFTER the adaption procedure done by the same scanner.

BTW, what makes you think that the ESP module is bad ? There are many reasons that the ESP warning status can pop up on the dash. Has the car been scanned by the indie ? Do you have a printout that shows fault codes from each of the modules ?

Since your car is a non-USA car, I do not know whether there is difference between the same model/year estate and sedan ESP functions. There is a difference between 4matic and non-4matic versions that applies to ASR equipped models. Not sure about the ESP equipped models.

If you are buying it from the indie, he should have the proper equipment to diagnose and fix the issue. The problem could be as simple as a bad battery / charging system.
Thanks, mrboca for the quick reply. The ESP module needing replacement was not my idea, but the indie's inference. Unfortunately, I don't have a printout for the error codes, taking his word for it. I'm just looking for them because they cost atleast $1500 in India, going by what a guy working under the indie told us. ebay U.K shows prices usually starting from around 20 GBP. The thing is both are used items.

I was actually asking for the procedure because repairs here take a really long time. We've bought the car, paying more than two thirds the amount back in October last year, and the thing is still being fixed. The guy does do it for cheaper, but he takes an annoyingly long time. Not just me saying it. So if it's something I could do myself, it's best to know. And I would hate to be stranded on the road with an issue like this, so it's kinda better if I know the procedure if I can do it. Thanks for the clarification.

"Since your car is a non-USA car, I do not know whether there is difference between the same model/year estate and sedan ESP functions" We don't have an estate version here, if that's what you mean.

So to confirm, ESP modules for the W210 can and should only be installed by professionals to ensure their full functionality and safety of people, no matter what anyone says. I hope I got that right.
 

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Yes, the emphasis is the correct diagnosis. Many times the ESP module is blamed just because it gives out faults, but the problem ends up being in somewhere else. If in fact the ESP module is bad (the scan should tell you what is wrong), it requires adaptation, and then clearing ESP specific clearing fault codes by the MB SDS, or equivalent diagnostic equipment.

If you want you can order a used one, and get it installed by your indie.
 

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Yes, the emphasis is the correct diagnosis. Many times the ESP module is blamed just because it gives out faults, but the problem ends up being in somewhere else. If in fact the ESP module is bad (the scan should tell you what is wrong), it requires adaptation, and then clearing ESP specific clearing fault codes by the MB SDS, or equivalent diagnostic equipment.

If you want you can order a used one, and get it installed by your indie.
Getting the module that we might buy installed by a qualified professional was always the intention, mrboca. The stuff I've mentioned before are just countermeasures for an emergency. The supervisor of that garage has said that he looked for errors everywhere else, so this could be the the culprit.

BTW, how come there are almost no service manual pdf files(free ones, anyway)for the E220 CDI of this era? I could only find files for E320 and above. Man, this is really hard.

Thanks for the confirmation.
 
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