Petersurherland

I had my car at local garage as I have an ABS inoperative see owners manual message on dash. This is the error messages that came up when connecting to diagnostic machine. They weren’t sure what the issue is and said it will need to go to Mercedes. Anyone got any idea as to what it could be? Mercedes c220 class w204

alynch

Based on the error messages I would suspect the speed sensor in the right front hub or the wiring to this sensor. If the input from this sensor is compromised (see second message) then the ABS cannot determine the speed of the car and therefore cannot reliably apply the brakes.

W204Motorsports

Front-wheel bearing magnet rusted away or the right front wheel speed sensor is bad.

Just204

Swap the left and right sensors and see if the code changes, if it does you have a bad sensor. If not might be the bearing.