Awesome new problem with my ECM
Thread Starter
Senior Member
Joined: Oct 2005
Posts: 365
Likes: 0
From: San Jose
CL65 AMG , white S550 Sport w/ white Giovanna 22s, wild custom chopper
Awesome new problem with my ECM
I have a very exciting problem w/ the wife's S550:
1. Engine fan comes on full speed at random times, even when the car is parked
2. Car won't start while this is happening
Wiggling the ECM's connectors seems to temporarily address the issue or tapping it with a screwdriver on top. The car fires right up and the fan turns off. Seems to be a cold soldering problem around where the modules connector bay and PCB come together (I'm guessing)...
Do you guys know if it's possible to by a used ECM on eBay and have it SCN coded to my car? Here are the details of the module that I have:
MB Part Number: A 273 153 50 79 Bosch # 0 261 209 210
I also am trying to contact Beckmann technologies and waiting for someone there to get back to me to see if they can repair this one. Any other places like Beckmann around that do this type of stuff?
Thanks guys!!! Any info would be great, a new module from the dealr is almost $2500 w/ labor to install/code...
1. Engine fan comes on full speed at random times, even when the car is parked
2. Car won't start while this is happening
Wiggling the ECM's connectors seems to temporarily address the issue or tapping it with a screwdriver on top. The car fires right up and the fan turns off. Seems to be a cold soldering problem around where the modules connector bay and PCB come together (I'm guessing)...
Do you guys know if it's possible to by a used ECM on eBay and have it SCN coded to my car? Here are the details of the module that I have:
MB Part Number: A 273 153 50 79 Bosch # 0 261 209 210
I also am trying to contact Beckmann technologies and waiting for someone there to get back to me to see if they can repair this one. Any other places like Beckmann around that do this type of stuff?
Thanks guys!!! Any info would be great, a new module from the dealr is almost $2500 w/ labor to install/code...
Newbie
Joined: Dec 2011
Posts: 9
Likes: 0
s500 2003
Ecu Tech in Michigan offers repair service on Mercedes ecu modules. Go to http://www.mercedesecm.com for more info.
Newbie
Joined: Feb 2022
Posts: 1
Likes: 0
2007 S550
Hi Serge! This is the exact same problem as our 2007 S550. I've spent a lot of time and money trying to pinpoint the issue. Is it the engine control module? I'd really appreciate if you can let me know what was the solution. I've spend hours trying to figure it out. Really looking forward to hearing from you and hopefully finally getting this solved.
Thank you!
Mario
Thank you!
Mario
Senior Member
Joined: Aug 2018
Posts: 307
Likes: 61
S350 2008
Hi Serge! This is the exact same problem as our 2007 S550. I've spent a lot of time and money trying to pinpoint the issue. Is it the engine control module? I'd really appreciate if you can let me know what was the solution. I've spend hours trying to figure it out. Really looking forward to hearing from you and hopefully finally getting this solved.
Thank you!
Mario
Thank you!
Mario
