NEED HELP ASAP!!!!
The other day, I was driving my car and got the Brake, ABS,ESC, tire pressure inop, SRS inop error. Parked car and the next morning tried to start it and now nothing. Tried to connect an ODB2 scanner to it and it wont comm with car. Can someone lead me in the right direction to solve this??? I have already replaced the brake switch, but still have error and no start.

 

From an old post.........your battery checked out?



Hope this helps someone as many with this same failure have tried various things to correct it. For my 2010 C300 the warning lights would come on after driving about 5 miles per hour. Took it to a decent Indy shop and they diagnosed a 5001 code related to EBS/ESC module. The electronic component (and not the hydraulic portion) needed to be replaced.

Apparently this happens a lot as the local MB dealer had 3 in stock (for a 9 year old car...) they wanted $950 for it. The indy found a local salvage shop that had 3 C300s same year and found a part that closely matched the serial #. The used part was $215 and he charged me $100 to install it (and program it??). Said it did not need to be “coded “ to the car.

Seems that an aging battery can also trigger these codes/faults, so check that too, but in my case it was the module that failed.

 

And the battery caused all this??? I had the battery changed about over a year ago and it never did this. I cant even shift out of park with the key on

 

A wheel speed sensor perhaps? Would need to get read the code(s) it is throwing to have a better idea what might be happening. In the past weer you able to communicate with teh car with your code reader? Could also possibly be the battery I guess, but if you changed it a year ago, that seems less likely, as AGM batteries last a long time.

 

I will try get the battery checked, but I tried to use a scan tool and it would not com with the car. Maybe after the battery is checked good I will be able to. Ist hard to get an Idea what is wrong when you have so many errors on the dash, seems like everyone has a similar issues, but different causes

 

I had similar warnings when the front SAM failed.

 

Currently having the same problem with my 2012 W204.
OBD port is dead so Mercedes could not diagnose unless they tore into the car to check each of the modules and SAM (2 of them). Car is now at a local indy shop.

This is usually caused by water intrusion shorting out the SAM units. Have you noticed water inside on the footwells?

 

yes, I started cleaning the connections. Now I still have o start and esc inop error message

 

I'm having this same issue, if someone could link somebody who repairs Sams down below for a good usd price

 

I am happy to report that my indy shop found the problem to be a shorted out communications module under the driver's footwell effectively due to water intrusion.
I am picking up the car on Tuesday so as soon as I have more details I will post a reply.