Mercedes Repair Questions? Ask a Mechanic for Answers ASAP
Hello, Any electronic component in ABS system can be causing this ( brake pedal, clutch switch, wheel speed sensors, ABS valve unit). Reading out the fault memory with Star Diagnosis or other suitable diagnostic tool. Most common cause is the brake light switch. Sometimes, it needs readjustment. Remove it, and pull out the white moving part of the switch until it ratchets out. Then install it without making contact with the brake pedal and then release the brake pedal slowly.
This will allow for self adjustment of the switch
hi i tryed this and it didnt work any other suggestions