98/99 CLK Transmission Performance Upgrade
08-06-2003, 06:30 PM
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98/99 CLK Transmission Performance Upgrade
SUBJECT: DEALER TECHNICAL BULLETIN 58/99
*** REPLACE MB-NET NO. 696 DATED 12-20-99 WITH THE FOLLOWING ***
58/99-2 GROUP 27 - MODELS 202, 208, 210, 129, 140, 170 WITH AUTOMATIC TRANSMISSION 722.6: There have been some new electronic transmission control (ETC) modules produced for the correction of codes 053, 134, 146, 149 as well as improvements to the 1-2 full throttle upshift and the 3-2 downshift. The part numbers for these new ETC modules are as follows:
M119/120 engine - 026 545 72 32
M113 engine - 026 545 73 32
M112 engine - 026 545 84 32
M111 engine - 026 545 82 32
M104 engine - 026 545 85 32
For the 220, the improved software has a part number of 022 545 51 32 which is already installed in all but the very early production 220's, so please check prior to replacement.
NOTE: Does not apply to tiptronic shifted vehicles.
The ETC modules can be ordered using the 26 extension on the part number and the VIN to ensure proper version coding from Germany. Part numbers do not apply to AMG vehicles.
Please remember that software will not correct a hardware problem, so please check the vehicle carefully before changing to assure that the control module replacement is required.
Service Engineering
NYdg
12-29-99
MB-Net 708 dated 12-29-99.htm
*** REPLACE MB-NET NO. 696 DATED 12-20-99 WITH THE FOLLOWING ***
58/99-2 GROUP 27 - MODELS 202, 208, 210, 129, 140, 170 WITH AUTOMATIC TRANSMISSION 722.6: There have been some new electronic transmission control (ETC) modules produced for the correction of codes 053, 134, 146, 149 as well as improvements to the 1-2 full throttle upshift and the 3-2 downshift. The part numbers for these new ETC modules are as follows:
M119/120 engine - 026 545 72 32
M113 engine - 026 545 73 32
M112 engine - 026 545 84 32
M111 engine - 026 545 82 32
M104 engine - 026 545 85 32
For the 220, the improved software has a part number of 022 545 51 32 which is already installed in all but the very early production 220's, so please check prior to replacement.
NOTE: Does not apply to tiptronic shifted vehicles.
The ETC modules can be ordered using the 26 extension on the part number and the VIN to ensure proper version coding from Germany. Part numbers do not apply to AMG vehicles.
Please remember that software will not correct a hardware problem, so please check the vehicle carefully before changing to assure that the control module replacement is required.
Service Engineering
NYdg
12-29-99
MB-Net 708 dated 12-29-99.htm
08-06-2003, 08:54 PM
#5
It means....
That there was a software patch released in Late 99? That corrected many of the transmission problems i.e. full throtle acceleration in 1st and 2nd and hard down-shifting from 3-2, etc. What I don't know is...what type of engine is the CLK 320. Anyone? 
P.S. Great post!
P.S. Great post!
Last edited by TresX; 08-06-2003 at 08:58 PM.
08-06-2003, 09:36 PM
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99 CLK 430
ok so what's the proccesing of all this???
i go to dealership order something and plug it in the car??? or i go to dealership order software and leave the car there so they upgrade the current software?? or something else???
i go to dealership order something and plug it in the car??? or i go to dealership order software and leave the car there so they upgrade the current software?? or something else???
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08-07-2003, 08:54 AM
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CLK 320
So will this fix the problem of running into the rev limiter when you floor it after starting out at a slow pace? The only thing is that I have had an update done to my transmission control module and my car will still hit the rev limiter occasionally. How can I tell if I have had this update or if it was a different one?
08-07-2003, 02:38 PM
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I found this info on the MB Bulletin website. I also have a 99 CLK430 and not too happy about the acceleration from 0-60, I think it is related to the transmissions performance, not the engine since my car pickup very quick after 60mph .
May be our moderators, especially mbtech208, can guide us how to approach the dealer to have the transmission upgraded.
May be our moderators, especially mbtech208, can guide us how to approach the dealer to have the transmission upgraded.
08-10-2003, 03:30 PM
#13
I've spoken to the tech at my dealership....
I told him about the problems with full throtle acceleration and the hard downshifting, and he insisted it was the MAF sensor. I asked him about the new software and he immediately from that point on didn't understand what I was saying. Strange, as he spoke english well enough before I asked about the software. Then my advisor jumps in the conversation and tells me that I should leave the car when I can so that they can check it out. Anyone know how to get around this and get to the truth?
