Check out these companies that offer Mercedes throttle body repair services (eBay link). Mercedes throttle bodies made by Bosch and VDO may fail. Here is a close-up picture of a Mercedes throttle body. The throttle body is where the throttle valve is mounted and controls the amount of air that enters the combustion chamber when the throttle body malfunctions, the wrong amount of air enters the engine causing problems with the air/fuel mixture ratio. In most cases, the issue is caused by either a defective pedal position sensor or a bad throttle position sensor. Turning off the engine and restarting it usually fix the problem. If you press the gas pedal to the floor or try to accelerate quickly or floor it, the engine stops responding, RPMs drop, and it may even go into limp mode.
Symptoms of defective Mercedes throttle body or throttle position sensor include:Ī common problem that you may notice is that the car drives fine under normal acceleration. Mercedes-Benz throttle body or throttle position sensor found on C-Class, E-Class, S-Class, CLK-Class, and SLK-Class may fail to cause idle issues, no idle, or poor acceleration.
