Another 'jerk at 1500 rpm" saga for your entertainment
SPONSOR
Joined: Aug 2006
Posts: 4,909
Likes: 130
From: Houston
C63S
030 545 2332
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.
Last edited by sales@eurocharged.com; Feb 27, 2007 at 04:49 PM.
Almost a Member!
Joined: Jan 2007
Posts: 66
Likes: 0
From: Virginia
2002 C32
This is a very important point to make. I have just discovered the following: If you own a 2002 C32, then a used TCU from an '03 or '04 (such as from a salvage yard) WILL NOT WORK FOR YOU.
I discovered this after listening to some earlier posts and buying a unit off a wrecked '03 for my 2002 C32.
The unit needs to be SCN coded to your car, and you CANNOT DO THAT with a 2002 C32. Any updated TCU for a 2002 C32 MUST be a new unit that has been VIN coded to your car from the dealer or factory or vendor.
Now, if I had a 2003 C32 and wanted to put the TCU from a wrecked '03 into it, then the unit could be recoded to the car.
Don't make this mistake...it's expensive.
Regards,
Pete
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.[/QUOTE]
I discovered this after listening to some earlier posts and buying a unit off a wrecked '03 for my 2002 C32.
The unit needs to be SCN coded to your car, and you CANNOT DO THAT with a 2002 C32. Any updated TCU for a 2002 C32 MUST be a new unit that has been VIN coded to your car from the dealer or factory or vendor.
Now, if I had a 2003 C32 and wanted to put the TCU from a wrecked '03 into it, then the unit could be recoded to the car.
Don't make this mistake...it's expensive.
Regards,
Pete
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.[/QUOTE]
Member
Joined: Feb 2007
Posts: 126
Likes: 0
From: Plano, TX
2002 C32 ///AMG
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.
Member
Joined: Dec 2001
Posts: 82
Likes: 0
From: so cal
2007 E550 and 2007 335i
Trans jerking
I have complained about the transmission jerking when warm for 5 years. They said they could never duplicate. Last month I took it in again and finally the transmission had thrown some codes. They replaced the ecu no problem since then. ( car is a 2002 C32 with 66k miles)
Also to DL AMG I also had the vibration when cold from 35-45 mph. Took it in numerous times and since the sa told me it was just a function of the stock low profile tires, I called him on that by having the car spend the night on a lift so the tires were not squared. I went there in the morning took the car off the lift. And showed the service manager and the sa the vibration. I showed them some info about the fluid in the driveshaft. But he just gave up and did nothing.
that is my 2 cents
Also to DL AMG I also had the vibration when cold from 35-45 mph. Took it in numerous times and since the sa told me it was just a function of the stock low profile tires, I called him on that by having the car spend the night on a lift so the tires were not squared. I went there in the morning took the car off the lift. And showed the service manager and the sa the vibration. I showed them some info about the fluid in the driveshaft. But he just gave up and did nothing.
that is my 2 cents
Member
Joined: Feb 2007
Posts: 126
Likes: 0
From: Plano, TX
2002 C32 ///AMG
If you order a new TCU from https://www.trademotion.com/, are you able to stick it in and it automatically work, or do you have to go to the dealership and pay them a bunch of money to make it work for you?
Almost a Member!
Joined: Jan 2007
Posts: 66
Likes: 0
From: Virginia
2002 C32
If you order a new TCU from https://www.trademotion.com/, are you able to stick it in and it automatically work, or do you have to go to the dealership and pay them a bunch of money to make it work for you?
Well, I'm about to find that one out. I just ordered a new TCU from Duval. I would suggest using this sub-branch of the trademotion system:
http://www.trademotion.com/partlocat...51&catalogid=0
Duval Motorcars is a Mercedes dealer in Florida. They will order OEM Mercedes parts for you at wholesale prices ($306 versus the $420 that my local benz dealer quoted me). They will ask for your VIN and make sure that the unit is pre-coded for your car. Will it work? I dunno...I am presuming it will. I'll let you know.
regards,
Pete
SPONSOR
Joined: Aug 2006
Posts: 4,909
Likes: 130
From: Houston
C63S
If you order a new TCU from https://www.trademotion.com/, are you able to stick it in and it automatically work, or do you have to go to the dealership and pay them a bunch of money to make it work for you?
I spoke to the guy on the phone and he said it is coded to your VIN before it ships so it will be plug and play. That's why you can't return it.
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
Junior Member
Joined: May 2006
Posts: 56
Likes: 0
From: SF Bay Area
C32 AMG Maserati Coupe GT
Different kind of BAM
I am watching this thread with interest.
I just experienced the "jerk" a few weeks ago, but NOT at 1500PRM!
On one cold morning, I started my car, put my car in reverse to back my car out of my driveway. As soon as the tranny was engaged, i got a loud BAM, I was shaken, quickly put it into the Drive position, BAM again.
That's was all, everything was OK after that. Haven't experience the BAM since then.
EDIT: Start of engine in cold morning, the engine was probably revving at 1500-2000 RPM ?? Co-instance?
I just experienced the "jerk" a few weeks ago, but NOT at 1500PRM!
On one cold morning, I started my car, put my car in reverse to back my car out of my driveway. As soon as the tranny was engaged, i got a loud BAM, I was shaken, quickly put it into the Drive position, BAM again.
That's was all, everything was OK after that. Haven't experience the BAM since then.
EDIT: Start of engine in cold morning, the engine was probably revving at 1500-2000 RPM ?? Co-instance?
Last edited by dchao; Mar 3, 2007 at 08:43 PM.
Almost a Member!
Joined: Jan 2007
Posts: 66
Likes: 0
From: Virginia
2002 C32
Duval Motorcars is a Mercedes dealer in Florida. They will order OEM Mercedes parts for you at wholesale prices ($306 versus the $420 that my local benz dealer quoted me). They will ask for your VIN and make sure that the unit is pre-coded for your car. Will it work? I dunno...I am presuming it will. I'll let you know.
regards,
Pete[/QUOTE]
Well, my new transmission control unit arrived today, and with much anticipation I installed it.
Did it work in my car? Yes.
Does the car still jerk? Yes.
I dare say that the car does shift better, but the jerk is still there.
What next? About the only thing I have left is the torque converter. Maybe that is bad. I doubt it.
I'm starting to believe that the adaptive functioning of the transmission is the source of the jerk. I would love to find a way to disengage the adapatation function and just drive the car, rather than letting it try to drive me.
Regards,
Pete
regards,
Pete[/QUOTE]
Well, my new transmission control unit arrived today, and with much anticipation I installed it.
Did it work in my car? Yes.
Does the car still jerk? Yes.
I dare say that the car does shift better, but the jerk is still there.
What next? About the only thing I have left is the torque converter. Maybe that is bad. I doubt it.
I'm starting to believe that the adaptive functioning of the transmission is the source of the jerk. I would love to find a way to disengage the adapatation function and just drive the car, rather than letting it try to drive me.
Regards,
Pete
Senior Member
Joined: Nov 2006
Posts: 259
Likes: 0
From: Ottawa, Ontario
C32 AMG - in Pewter
Do a throttle reset (described on this forum many times, and under the w203 section), I believe that will reset the transmission map and transmission will start learning from scratch. See if you notice a difference then.
MBWorld Fanatic!
Joined: Aug 2006
Posts: 1,717
Likes: 0
From: Keesler AFB, Gulfport, MS
C32 AMG
Senior Member
Joined: Nov 2006
Posts: 259
Likes: 0
From: Ottawa, Ontario
C32 AMG - in Pewter
I think this worth a try as transmission may relearn and settle on a different map with the new TCU. It will at the least confirm where the problem is.
I also remember my dealer mentioned that they have reprogrammed the shift points of the transmission for a customer as his specific driving pattern made the tranny shift up and down way too often. So they can change the program, if they want to and if the specific dealer is knowledgeable enough. This was done on a recent model Merc but he did not specify which and I did not ask either.
I also remember my dealer mentioned that they have reprogrammed the shift points of the transmission for a customer as his specific driving pattern made the tranny shift up and down way too often. So they can change the program, if they want to and if the specific dealer is knowledgeable enough. This was done on a recent model Merc but he did not specify which and I did not ask either.
MBWorld Fanatic!
Joined: Aug 2006
Posts: 1,717
Likes: 0
From: Keesler AFB, Gulfport, MS
C32 AMG
I also remember my dealer mentioned that they have reprogrammed the shift points of the transmission for a customer as his specific driving pattern made the tranny shift up and down way too often. So they can change the program, if they want to and if the specific dealer is knowledgeable enough. This was done on a recent model Merc but he did not specify which and I did not ask either.
Regardless it won't hurt to try and clear it out.
Almost a Member!
Joined: Jan 2007
Posts: 66
Likes: 0
From: Virginia
2002 C32
I think this worth a try as transmission may relearn and settle on a different map with the new TCU. It will at the least confirm where the problem is.
I also remember my dealer mentioned that they have reprogrammed the shift points of the transmission for a customer as his specific driving pattern made the tranny shift up and down way too often. So they can change the program, if they want to and if the specific dealer is knowledgeable enough. This was done on a recent model Merc but he did not specify which and I did not ask either.
I also remember my dealer mentioned that they have reprogrammed the shift points of the transmission for a customer as his specific driving pattern made the tranny shift up and down way too often. So they can change the program, if they want to and if the specific dealer is knowledgeable enough. This was done on a recent model Merc but he did not specify which and I did not ask either.
I will try this of course but I doubt it will be effective. By definition I reset the ECU before driving with the new module, and it didn't make any real difference.
There is a philosophical problem with adaptive transmissions, and that is that the car ends up trying to predict behavior on my part, where as the behavior is often very different. How can the computer predict when some stupid buzz-cut with a primered Honda Civic and a big tailpipe is going to pull up next to me, versus when I am behind a 126 year-old woman in a Buick at a red light? It can't.
Regards,
Pete
Member
Joined: Feb 2007
Posts: 126
Likes: 0
From: Plano, TX
2002 C32 ///AMG
MBWorld Fanatic!
Joined: Jan 2006
Posts: 1,052
Likes: 1
CLS55 Designo 030
Well, I PMed moorfan and his results were not what I was expecting. Apparently, he didn't get rid of the "jerk" after replacing it with a new one.
If you want to give it a try, go to oempartsdirect.com. They are giving to all mbworld members a 25% discount off list prices for a month. It should be a bit a cheaper than Duvals. Type the discount code: 8253 in the comments section and you are set.
I'm getting a new windshield this month.
Good luck and let me know if it works for you.
If you want to give it a try, go to oempartsdirect.com. They are giving to all mbworld members a 25% discount off list prices for a month. It should be a bit a cheaper than Duvals. Type the discount code: 8253 in the comments section and you are set.
I'm getting a new windshield this month.
Good luck and let me know if it works for you.
Member
Joined: Feb 2007
Posts: 126
Likes: 0
From: Plano, TX
2002 C32 ///AMG
From everything I've read, if it isn't the glycol contamination, it's very likely that it's the TCU replace, and since my tranny is fine, and I've got a Behr radiator now, I'm pretty sure that the little jerk I have is from the TCU, doesn't make sense to be anythign else, and if I accelerate just a little bit I have no jerk at all. So something's up with the TCU telling the torque convertor, "Hey, jerk this man around a lil bit, he's not going fast enough!" 
Super Moderator Alumni
Joined: May 2006
Posts: 4,539
Likes: 4
From: Southern Cal
a C32 AMG & S-Works Tarmac
You know, you say that in jest, but my SA actually said a similar thing to me. Appearantly, my tranny jerk in "normal", I'm just not driving it hard enough. Now, if I could just get the cars in front of me to understand what my TCU is saying.....
SPONSOR
Joined: Aug 2006
Posts: 4,909
Likes: 130
From: Houston
C63S
LOL... That is the statement of the day!
Almost a Member!
Joined: Jan 2007
Posts: 66
Likes: 0
From: Virginia
2002 C32
Well, I PMed moorfan and his results were not what I was expecting. Apparently, he didn't get rid of the "jerk" after replacing it with a new one.
If you want to give it a try, go to oempartsdirect.com. They are giving to all mbworld members a 25% discount off list prices for a month. It should be a bit a cheaper than Duvals. Type the discount code: 8253 in the comments section and you are set.
I'm getting a new windshield this month.
Good luck and let me know if it works for you.
If you want to give it a try, go to oempartsdirect.com. They are giving to all mbworld members a 25% discount off list prices for a month. It should be a bit a cheaper than Duvals. Type the discount code: 8253 in the comments section and you are set.
I'm getting a new windshield this month.
Good luck and let me know if it works for you.
Regards,
Pete
