Meeting with regional rep. about "the jerk".
Newbie
Joined: Jan 2003
Posts: 21
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From: TN
2002 C32 and 1999 F-150 Lightning
Thank you, thank you, Lou. I'm glad to have some of this on record when I go in for my service. Sounds like you have a really cool shop foreman, btw.
So I suppose the car now feels like it should...that is, as smooth taking off and accelerating through the gears 1-2-3 as the car feel on the highway or going through the 3-4-5 gears? Also, what about when decelerating? Is it any smoother? I've noticed that when I'm decelerating for a signal and it turns green at the last moment before the car has a chance to downshift all the way to first that if I get back on the gas there is abrupt jerk as well.
At last you have the velvet back in the hammer.
Collin
P. S. Lou, what dealership to you go to? and what city, please? Just in case my guys need to call yours.
So I suppose the car now feels like it should...that is, as smooth taking off and accelerating through the gears 1-2-3 as the car feel on the highway or going through the 3-4-5 gears? Also, what about when decelerating? Is it any smoother? I've noticed that when I'm decelerating for a signal and it turns green at the last moment before the car has a chance to downshift all the way to first that if I get back on the gas there is abrupt jerk as well.
At last you have the velvet back in the hammer.
Collin
P. S. Lou, what dealership to you go to? and what city, please? Just in case my guys need to call yours.
Last edited by Collin; Jan 25, 2003 at 03:56 PM.
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From: Los Angeles
ML350
Lou Zer,
That's great news that your problem has been resolved. Thanks for sharing your experience with us. I hope this doesn't happen to other 02 C32 owners but if it did at least they'll have a good road map to resolution with your posts.
Thanks to all that have answered my questions as well. I'm going to see my MB Dealer in the next week. So maybe I'll be a member of the C32 club soon. =)
Has anyone taken their C32 to the track yet? I heard that the cross drilled rotors crack due to heat and stress after track use? Has anyone experienced this and/or any truth to this?
Thanks again for your replies.
03ML350
That's great news that your problem has been resolved. Thanks for sharing your experience with us. I hope this doesn't happen to other 02 C32 owners but if it did at least they'll have a good road map to resolution with your posts.
Thanks to all that have answered my questions as well. I'm going to see my MB Dealer in the next week. So maybe I'll be a member of the C32 club soon. =)
Has anyone taken their C32 to the track yet? I heard that the cross drilled rotors crack due to heat and stress after track use? Has anyone experienced this and/or any truth to this?
Thanks again for your replies.
03ML350
Thread Starter
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C32 AMG
Collin,
Yes it is in character with what I expect from the car. The up/down shifts are still crisp and sporty (vs. the "did it shift" smooth shifts of my E 320 loaner) but completely in character with the car. The get back on the gas jerk seems to be gone too. That one was the most violent and annoying one so I'm glad its gone.
After three days of mixed driving I've only encountered two mild jerks. One coming out of a strip mall making an up hill right hand turn where I had to make some abrupt brake/gas pedal inputs. I was really jerking the car around at that point and the jerk was milder than any of the pre-repair ones. The other is a sharp slow 180 deg. right hand turn at my work parking lot that seems to result in a minor jerk. Again milder than any of the pre-repair ones. Still this means that 99% of my pre repair jerks are gone. Well see if these remaining ones go away as C32Andy was mentioning earlier in the post.
Yes it is in character with what I expect from the car. The up/down shifts are still crisp and sporty (vs. the "did it shift" smooth shifts of my E 320 loaner) but completely in character with the car. The get back on the gas jerk seems to be gone too. That one was the most violent and annoying one so I'm glad its gone.
After three days of mixed driving I've only encountered two mild jerks. One coming out of a strip mall making an up hill right hand turn where I had to make some abrupt brake/gas pedal inputs. I was really jerking the car around at that point and the jerk was milder than any of the pre-repair ones. The other is a sharp slow 180 deg. right hand turn at my work parking lot that seems to result in a minor jerk. Again milder than any of the pre-repair ones. Still this means that 99% of my pre repair jerks are gone. Well see if these remaining ones go away as C32Andy was mentioning earlier in the post.
Senior Member
Joined: Aug 2004
Posts: 356
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2012 GL550
I want to get the tranny jerk problem fixed on my 02 also.
When you guys say replace the 02 tranny ecu with a 03 tranny ecu, you guys mean physically swapping out my current tranny ecu module with an 03 module correct? Its not simply updating/flashing/reprogramming the current tranny ecu right? I'm assuming also that the tranny ecu is a seperate module than the engine ecu.
Thanks.
When you guys say replace the 02 tranny ecu with a 03 tranny ecu, you guys mean physically swapping out my current tranny ecu module with an 03 module correct? Its not simply updating/flashing/reprogramming the current tranny ecu right? I'm assuming also that the tranny ecu is a seperate module than the engine ecu.
Thanks.
MBWorld Fanatic!
Joined: Feb 2004
Posts: 1,645
Likes: 2
From: San Diego
2002 C32 Black/Charcoal
Very informative thread. My '02 C32 does the "tranny jerk" :v about once a week. I have noticed that it does it mainly while making right turns (or shortly thereafter) and mainly when the car is cold. Has anyone else noticed these as being precipitating factors?
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Posts: 722
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From: Bay Area
07 SL550; C32 (sold)
Originally Posted by Vomit
Very informative thread. My '02 C32 does the "tranny jerk" :v about once a week. I have noticed that it does it mainly while making right turns (or shortly thereafter) and mainly when the car is cold. Has anyone else noticed these as being precipitating factors?
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reset your ecu. pull the ground off the battery...pump the brakes a couple times, let car sit for 1 hour. Plug it back in, take it for a spin...any error codes? shut off car, and start it back up..all gone. Clunk is gone...at least it did for me.
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Joined: Aug 2009
Posts: 983
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From: USA
Marsaydees
The new part number is 032 545 1232. The part number in your car is most likely 030 545 2332. If you have part number 1232, then you have a 2003 or later (from what I have been told). If you have a 2002, then you need the latest TCM, which is 032 545 1232. If they says it's not for your car, reference the 2332 number and it will show in their system that it has been changed to 1232.
The EGS/ETC unit (transmission control unit) is located in the passenger front footwell under the aluminum kickplate. Pull back the carpet from above, unscrew the three plastic nuts and flip the aluminum kickplate over, and voila
Thanks to moorfan for some if this info.
It appears as if the wrecked 03 TCM that I paid $375 for was actually a new unit. I was told that these can only be programmed once and the tech at the dealership was shocked when the "wrecked 03" TCM took a reflash / re-code for my car. I brushed it off after he said it, but as I told moorfan via PM, the TCM arrived in a sealed static bag with a white mercedes sticker over it. It looked as if the bag had never been opened. The TCM itself was scratched though.
I can say that my jerk is now gone and if memory serves me right, I have over 2k on the car since I switched TCM's.
The EGS/ETC unit (transmission control unit) is located in the passenger front footwell under the aluminum kickplate. Pull back the carpet from above, unscrew the three plastic nuts and flip the aluminum kickplate over, and voila
Thanks to moorfan for some if this info.
It appears as if the wrecked 03 TCM that I paid $375 for was actually a new unit. I was told that these can only be programmed once and the tech at the dealership was shocked when the "wrecked 03" TCM took a reflash / re-code for my car. I brushed it off after he said it, but as I told moorfan via PM, the TCM arrived in a sealed static bag with a white mercedes sticker over it. It looked as if the bag had never been opened. The TCM itself was scratched though.
I can say that my jerk is now gone and if memory serves me right, I have over 2k on the car since I switched TCM's.
Super Member
Joined: Dec 2007
Posts: 587
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From: The Windy City
'02 C32, '10 135i M-Sport, '10 E63, '17 GLE63S
Super Member
Joined: Dec 2007
Posts: 587
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From: The Windy City
'02 C32, '10 135i M-Sport, '10 E63, '17 GLE63S
The shop foreman let me in on a few things as well. According to him, the only technical bulletin on this issue that MB has released is eight months old. It states not to attempt any repairs and that they might have a software solution for the issue in the future. He told me they were having a hard time figuring out exactly how they were going to bill the repair work to MB in light of that...
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From: murfreesboro,tn
2003 porsche 996 turbo
this may be of no help at all but maybe these folks can fix the 02 tcu's instead of replacing them
http://www.beckmanntechnologies.com/contact.php
http://www.beckmanntechnologies.com/contact.php
Super Member
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Posts: 983
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From: USA
Marsaydees
here's an interesting tidbit - my tcu was replaced in 2005 by the previous owner under warranty. SDS shows the TCU as being made in 2005, but it still has the '02 style part number.
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From: Houston, TX
C32/C55 AMG
did you read the post above? the '03 tcu has to be brand new because it has to be SCN coded to your car - can't do this with a used TCU.
there was an update to the '02 software, it does not work. i think people are confusing this with the actual '03 tcu software, which cannot be flash onto an '02 tcu.
here's an interesting tidbit - my tcu was replaced in 2005 by the previous owner under warranty. SDS shows the TCU as being made in 2005, but it still has the '02 style part number.
there was an update to the '02 software, it does not work. i think people are confusing this with the actual '03 tcu software, which cannot be flash onto an '02 tcu.
here's an interesting tidbit - my tcu was replaced in 2005 by the previous owner under warranty. SDS shows the TCU as being made in 2005, but it still has the '02 style part number.
Super Member
Joined: Dec 2007
Posts: 587
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From: The Windy City
'02 C32, '10 135i M-Sport, '10 E63, '17 GLE63S
032 545 1232 - '03 and later
030 545 2332 - '02s (there might be others for the older ones like this)
This is from Jerry's earlier post in the thread, bump-quoted recently by Dingleberry.
Super Member
Joined: Dec 2007
Posts: 587
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From: The Windy City
'02 C32, '10 135i M-Sport, '10 E63, '17 GLE63S
this may be of no help at all but maybe these folks can fix the 02 tcu's instead of replacing them
http://www.beckmanntechnologies.com/contact.php
http://www.beckmanntechnologies.com/contact.php
Super Member
Joined: Aug 2009
Posts: 983
Likes: 2
From: USA
Marsaydees
this is what STAR read when connected to my car:
ETC - Electronic transmission control
MB Number: 030 545 3032
HW version: 47.2005
SW version: 03.2002
Diagnosis version: 2/1
Pin: 11
it appears that the PN you want for an '03 "design" TCU needs to start with 032. as you can see, my TCU is made in 2005, but it is still '02 "design"
FYI - STAR also says that I have the latest software...the latest crappy software that is
you cannot put '03 "style" software on an '02 design TCU
ETC - Electronic transmission control
MB Number: 030 545 3032
HW version: 47.2005
SW version: 03.2002
Diagnosis version: 2/1
Pin: 11
it appears that the PN you want for an '03 "design" TCU needs to start with 032. as you can see, my TCU is made in 2005, but it is still '02 "design"
FYI - STAR also says that I have the latest software...the latest crappy software that is
you cannot put '03 "style" software on an '02 design TCU
Last edited by Dingleberry; Mar 16, 2010 at 11:22 PM.
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Joined: Jul 2006
Posts: 3,365
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From: Orange County, CA
GMC - Miata - Trek - P-Car
MB has supplied several during their relatively limited C32 model run.
My superseded and (dealership) reprogrammed TCU continues to engage the torque converter’s lockup with a wallop at light throttle.
+1
Still believe it’s the 2002’s software programming that’s at fault, erstwhile OP’s success notwithstanding.
My superseded and (dealership) reprogrammed TCU continues to engage the torque converter’s lockup with a wallop at light throttle.
Still believe it’s the 2002’s software programming that’s at fault, erstwhile OP’s success notwithstanding.
Super Moderator
Joined: Jul 2006
Posts: 3,365
Likes: 12
From: Orange County, CA
GMC - Miata - Trek - P-Car
Tempted to try Jerry’s recommended 032 545 12 32 – or one of its derivatives.
Don’t know if there’s a proven workaround for seamless retrofitting to our earlier versions.
