Elec. Stabil. Prog. ESP Visit Workshop
Thread Starter
Senior Member
Joined: Jun 2007
Posts: 288
Likes: 0
From: Ogden, Utah.
C32 ///AMG
Elec. Stabil. Prog. ESP Visit Workshop
I have researched this common problem but I have yet to find a definitive answer on why I get it. Over the last year it has happened to me once or twice but now it's occurring nearly every time I hit WOT with the ESP turned OFF. It never happens when it's left ON.
Sometimes after I limp to a stop and turn off the car and restart it, the error goes away but then the Supercharger won't engage. Just the same as when my IC pump was going out maybe 6 months ago. I replaced the IC pump and haven't had any problems until just this last week.
Could the IC pump be causing this error? Maybe it's going out again?
When I first started having "sluggish" performance earlier in the year it was completely random. I could never make it happen when I wanted it to. (Murphy's Law). Now, it's only happening after coming off of a WOT. It engages, I take off like a bat out of Hell but when I let off the pedal I get the message and the car goes into "limp mode".
Whatcha think?
Sometimes after I limp to a stop and turn off the car and restart it, the error goes away but then the Supercharger won't engage. Just the same as when my IC pump was going out maybe 6 months ago. I replaced the IC pump and haven't had any problems until just this last week.
Could the IC pump be causing this error? Maybe it's going out again?
When I first started having "sluggish" performance earlier in the year it was completely random. I could never make it happen when I wanted it to. (Murphy's Law). Now, it's only happening after coming off of a WOT. It engages, I take off like a bat out of Hell but when I let off the pedal I get the message and the car goes into "limp mode".
Whatcha think?
Senior Member
Joined: Nov 2005
Posts: 267
Likes: 0
From: nottingham / uk
silver 2002 c32 amg
could be I/C pump again
could also be throttle actuator or even battery/alternator going bad
by the sounds of it the problem is getting worse so it's probably best to get the codes read before you end up stranded possibly miles from home
could also be throttle actuator or even battery/alternator going bad
by the sounds of it the problem is getting worse so it's probably best to get the codes read before you end up stranded possibly miles from home
MBWorld Fanatic!
Joined: Feb 2006
Posts: 6,213
Likes: 8
LET C32 2002
Member
Joined: Feb 2008
Posts: 128
Likes: 0
E 240
Thread Starter
Senior Member
Joined: Jun 2007
Posts: 288
Likes: 0
From: Ogden, Utah.
C32 ///AMG
It happened again tonight and along with the visit workshop light came the check engine light. That's a new one. It stayed on for a couple of short trips to the store and then after about the third start the check engine light went away.
I also popped the hood and checked it out while it was running and found that I had a slight wobble in the tension pulley. I'll be taking it to my mechanic in a couple days.
I also popped the hood and checked it out while it was running and found that I had a slight wobble in the tension pulley. I'll be taking it to my mechanic in a couple days.
Trending Topics
MB World Stories
The Best of Mercedes & AMG
Manual Mercedes? 6 Times Sindelfingen Let Drivers Have All The Fun
Verdad Gallardo
Mercedes SLR McLaren 722 S Is Extremely Rare Example Modified by McLaren
Verdad Gallardo
8 Classic Boxy Mercedes Designs That Have Aged Like Fine Wine
Verdad Gallardo
Flawlessly Restored Mercedes 190E Evo II Heads to Auction
Verdad Gallardo
Electric Mercedes C-Class Unveiled: 11 Things You Need to Know
Verdad Gallardo
Mercedes EQS Gets A Major Update: Everything You Need to Know
Verdad Gallardo
5 Underrated Mercedes-Benz Models That Don't Get the Love They Deserve
Verdad Gallardo
Mercedes 300D Has Pushed Well Past 1 Million Miles and It Ain't Stopping
Verdad Gallardo
10 Most Reliable Mercedes-Benz Models You Can Buy Used
Verdad Gallardo
Thread Starter
Senior Member
Joined: Jun 2007
Posts: 288
Likes: 0
From: Ogden, Utah.
C32 ///AMG
Yep. Over the last week or so I have noticed a very, very slight vibration while driving. I haven't really noticed it so much at idle. I originally thought it was some sort of tire vibration but after finding the wobble tonight, I'm almost positive that's what's causing the vibration.
Super Member
Joined: Dec 2007
Posts: 587
Likes: 13
From: The Windy City
'02 C32, '10 135i M-Sport, '10 E63, '17 GLE63S
I had almost this same problem (with ESP on or off, but not in Dyno mode, almost always at WOT, usually when it tried to shift), and the dealer actually fixed it by replacing a part of the wiring harness. It was a TSB related to C55s, actually, but they fixed it under my extended warranty. I've randomly gotten the message a few times while driving the car really hard since, but it's never gone into limp-home mode again ( :: knock on wood :: ). Let me run and see if I can find the part # for what they replaced.
Super Member
Joined: Dec 2007
Posts: 587
Likes: 13
From: The Windy City
'02 C32, '10 135i M-Sport, '10 E63, '17 GLE63S
https://mbworld.org/forums/c32-amg-c...e-problem.html
Check that out when you get a chance. I didn't have nearly as many symptoms as that guy, but I brought it into the dealer and tried to get me to pay (a non-covered expense) of $1100 or so to replace the Throttle Valve Actuator. The actual quote from the Service Summary is "Performed short test, test codes P202E, DTB 30.201/61B (<--- the TSB for it?), Installed electronic throttle cable adapter harness."
The P# for it is 113 150 00 28, from a private, licensed MBoUSA dealer, so it may be different than in other databases - I don't know MB P# formats or anything.
Let me know if there's anything other info that I can get you that might help. By the way, could you take a picture of which pulley it is that's wobbling? I have one that looks a bit funky that I've only noticed since I ended up with a F'd up idle a few days ago, and I'm wondering if it's the same thing...
Check that out when you get a chance. I didn't have nearly as many symptoms as that guy, but I brought it into the dealer and tried to get me to pay (a non-covered expense) of $1100 or so to replace the Throttle Valve Actuator. The actual quote from the Service Summary is "Performed short test, test codes P202E, DTB 30.201/61B (<--- the TSB for it?), Installed electronic throttle cable adapter harness."
The P# for it is 113 150 00 28, from a private, licensed MBoUSA dealer, so it may be different than in other databases - I don't know MB P# formats or anything.
Let me know if there's anything other info that I can get you that might help. By the way, could you take a picture of which pulley it is that's wobbling? I have one that looks a bit funky that I've only noticed since I ended up with a F'd up idle a few days ago, and I'm wondering if it's the same thing...
Last edited by evilsaint; Nov 19, 2008 at 02:48 AM.
Thread Starter
Senior Member
Joined: Jun 2007
Posts: 288
Likes: 0
From: Ogden, Utah.
C32 ///AMG
Thanks for the help evilsaint. However I can't get that link to work? 
After looking at it this afternoon, I noticed that the Crankshaft pulley was creating more of the wobble than the tension pulley. For some reason in the video below it doesn't look quite as bad as it does in person. I have no idea why the camera picked up the sound like that. It doesn't sound anything like it does in the video.
http://s65.photobucket.com/albums/h2...Crankshaft.flv
I'm taking it to the shop on Thursday. I checked the belt and there were a couple of spots that had some small cracks it. Time for a new belt also.
After looking at it this afternoon, I noticed that the Crankshaft pulley was creating more of the wobble than the tension pulley. For some reason in the video below it doesn't look quite as bad as it does in person. I have no idea why the camera picked up the sound like that. It doesn't sound anything like it does in the video.
http://s65.photobucket.com/albums/h2...Crankshaft.flv
I'm taking it to the shop on Thursday. I checked the belt and there were a couple of spots that had some small cracks it. Time for a new belt also.
MBWorld Fanatic!
Joined: Jul 2007
Posts: 2,000
Likes: 20
From: East Bay, Bay Area
2002 C32, 2012 S550
Thanks for the help evilsaint. However I can't get that link to work?
After looking at it this afternoon, I noticed that the Crankshaft pulley was creating more of the wobble than the tension pulley. For some reason in the video below it doesn't look quite as bad as it does in person. I have no idea why the camera picked up the sound like that. It doesn't sound anything like it does in the video.
http://s65.photobucket.com/albums/h2...Crankshaft.flv
I'm taking it to the shop on Thursday. I checked the belt and there were a couple of spots that had some small cracks it. Time for a new belt also.
After looking at it this afternoon, I noticed that the Crankshaft pulley was creating more of the wobble than the tension pulley. For some reason in the video below it doesn't look quite as bad as it does in person. I have no idea why the camera picked up the sound like that. It doesn't sound anything like it does in the video.
http://s65.photobucket.com/albums/h2...Crankshaft.flv
I'm taking it to the shop on Thursday. I checked the belt and there were a couple of spots that had some small cracks it. Time for a new belt also.
What did your mechanic say?
This just happened to me on Friday night. WOT with ESP off and it went into limp mode. I turned the car off and it ran normal again. Then I tried WOT again and the SC turned off and the engine light came on.
It's normal again now, but I'm gonna have my mechanic try to read the codes on Monday. It's fine now, but I'm afraid to go WOT again.
Thanks in advance.
MBWorld Fanatic!
Joined: Jul 2007
Posts: 2,000
Likes: 20
From: East Bay, Bay Area
2002 C32, 2012 S550
I think the problem for me was my Throttle body actuator. I did not want to buy a new one, so I had it rebuilt by BBA Remanufacturing. Unfortunately the problem came back after a couple months so my mechanic wants to send the Throttle body back to BBA as they have a lifetime warranty on their work. However, it also means another 2 weeks downtime to send it out and get it back. 
It was $400 to have it rebuilt by BBA.
All my CEL's pointed to the Throttle body actuator.
Good luck as I'm pretty frustrated by now.
It was $400 to have it rebuilt by BBA.All my CEL's pointed to the Throttle body actuator.
Good luck as I'm pretty frustrated by now.
MBWorld Fanatic!
Joined: Dec 2007
Posts: 5,034
Likes: 6
From: Corona, CA
03 g35 coupe...........02 c32 Sold
thanks for the update..i've searched other posts and looks like the problem was solved by replacing the engine harness. i think i'll try that route first.
MBWorld Fanatic!
Joined: Jul 2007
Posts: 2,000
Likes: 20
From: East Bay, Bay Area
2002 C32, 2012 S550
Super Member
Joined: Dec 2007
Posts: 587
Likes: 13
From: The Windy City
'02 C32, '10 135i M-Sport, '10 E63, '17 GLE63S
I think the problem for me was my Throttle body actuator. I did not want to buy a new one, so I had it rebuilt by BBA Remanufacturing. Unfortunately the problem came back after a couple months so my mechanic wants to send the Throttle body back to BBA as they have a lifetime warranty on their work. However, it also means another 2 weeks downtime to send it out and get it back. It was $400 to have it rebuilt by BBA.
All my CEL's pointed to the Throttle body actuator.
Good luck as I'm pretty frustrated by now.
It was $400 to have it rebuilt by BBA.All my CEL's pointed to the Throttle body actuator.
Good luck as I'm pretty frustrated by now.
I've had that periodic SRS light/code come on since then, but that's apparently something completely different. Never had the car go into limp home mode since (knock on wood x 3) though
Super Member
Joined: Dec 2007
Posts: 587
Likes: 13
From: The Windy City
'02 C32, '10 135i M-Sport, '10 E63, '17 GLE63S
The other thing that I forgot to mention - I couldn't pin down the timing on this, but my IC pump %100 kicked the bucket very shortly after I had this problem "fixed" by replacing that part of the wiring harness. Literally, I went onto a frontage road not even five minutes away from the dealership to test out their work, and all of a sudden *BAM*, S/C started cutting out for the first time...
MBWorld Fanatic!
Joined: Dec 2007
Posts: 5,034
Likes: 6
From: Corona, CA
03 g35 coupe...........02 c32 Sold
i would say the two problems arent related. since my intercooler pump is running fine. i only started having this problem once i sold my code3 pulley and went back to stock.
do you have the part number for the harness? the dealership wanted $500 for it but wouldnt give me the part number.
do you have the part number for the harness? the dealership wanted $500 for it but wouldnt give me the part number.
Super Member
Joined: Dec 2007
Posts: 587
Likes: 13
From: The Windy City
'02 C32, '10 135i M-Sport, '10 E63, '17 GLE63S
I'll look around for it - It's in one of a million boxes laying around right now and I have a nasty cut on my finger that's still coagulating >_>
MBWorld Fanatic!
Joined: Dec 2007
Posts: 5,034
Likes: 6
From: Corona, CA
03 g35 coupe...........02 c32 Sold
yeah whenever you can. i'm pretty sure i can find it for half price on line. just like the dealership quoted me $1500 for the throttle actuator when its online for 750.
Super Member
Joined: Dec 2007
Posts: 587
Likes: 13
From: The Windy City
'02 C32, '10 135i M-Sport, '10 E63, '17 GLE63S
Temjin - I doubt this is the right part #, but here goes - 113 150 00 28
That's what listed on the repair paperwork. The actual description was "... test codes P202E, [I}DTB 30.201/61B[/I] (that's the C55 TSB, I think), installed electronic throttle cable adapter harness."
The price for the part on the repair order was only $76, so it was probably a shunt off of another separate portion of the engine wiring harness.
Sorry for not being able to be more clear about this - I'm just going with what I have. I do remember somebody else with this issue zip-tying some part of his wiring harness (some part with a plastic connector that wasn't staying totally closed) and having that solve his problem, though I wouldn't have the first idea where to look for something like that.
Either way, all I know is that I had a feeling that it was NOT the throttle body actuator, so did the service writer actually, so we went the cheap route first even though the TSB/DTB was for C55s and voila - it worked =)
That's what listed on the repair paperwork. The actual description was "... test codes P202E, [I}DTB 30.201/61B[/I] (that's the C55 TSB, I think), installed electronic throttle cable adapter harness."
The price for the part on the repair order was only $76, so it was probably a shunt off of another separate portion of the engine wiring harness.
Sorry for not being able to be more clear about this - I'm just going with what I have. I do remember somebody else with this issue zip-tying some part of his wiring harness (some part with a plastic connector that wasn't staying totally closed) and having that solve his problem, though I wouldn't have the first idea where to look for something like that.
Either way, all I know is that I had a feeling that it was NOT the throttle body actuator, so did the service writer actually, so we went the cheap route first even though the TSB/DTB was for C55s and voila - it worked =)
MBWorld Fanatic!
Joined: Dec 2007
Posts: 5,034
Likes: 6
From: Corona, CA
03 g35 coupe...........02 c32 Sold
Temjin - I doubt this is the right part #, but here goes - 113 150 00 28
That's what listed on the repair paperwork. The actual description was "... test codes P202E, [I}DTB 30.201/61B[/I] (that's the C55 TSB, I think), installed electronic throttle cable adapter harness."
The price for the part on the repair order was only $76, so it was probably a shunt off of another separate portion of the engine wiring harness.
Sorry for not being able to be more clear about this - I'm just going with what I have. I do remember somebody else with this issue zip-tying some part of his wiring harness (some part with a plastic connector that wasn't staying totally closed) and having that solve his problem, though I wouldn't have the first idea where to look for something like that.
Either way, all I know is that I had a feeling that it was NOT the throttle body actuator, so did the service writer actually, so we went the cheap route first even though the TSB/DTB was for C55s and voila - it worked =)
That's what listed on the repair paperwork. The actual description was "... test codes P202E, [I}DTB 30.201/61B[/I] (that's the C55 TSB, I think), installed electronic throttle cable adapter harness."
The price for the part on the repair order was only $76, so it was probably a shunt off of another separate portion of the engine wiring harness.
Sorry for not being able to be more clear about this - I'm just going with what I have. I do remember somebody else with this issue zip-tying some part of his wiring harness (some part with a plastic connector that wasn't staying totally closed) and having that solve his problem, though I wouldn't have the first idea where to look for something like that.
Either way, all I know is that I had a feeling that it was NOT the throttle body actuator, so did the service writer actually, so we went the cheap route first even though the TSB/DTB was for C55s and voila - it worked =)
