Have Mercedes Questions? Ask a Mechanic for Answers ASAP
Hi, my name is***** warning lights are telling you that the anti-lock brake system and the traction control system is inoperative. This is normally due to a faulty sensor in the system. You will need to get the car connected to a Mercedes tester to check for fault codes stored in the memory of the traction control module. The fault codes will point to the faulty sensor or module. Usually this turns out to be a fault with one of the wheel speed sensors but there are other possibilities as well. The black dust on the wheels is normal dust coming from the Mercedes brake pads. The brake linings should be checked but low brake linings are not the cause of the warning lights.
Let me know if you have any questions.