The throttle body is what contains the throttle plate, and allows air to enter the intake manifold. This throttle body is a completely electrically controlled unit, which has no throttle cable and is sometimes referred to as a drive-by-wire throttle body. Just like ay electro-mechanical device though, this throttle body can fail leaving your car running very poorly, if at all. Symptoms of a failed throttle body may include a check engine light, rough running condition, lack of power and poor idle quality. If you think your throttle body has failed, replace it today and keep your Mercedes-Benz running as well as it did when it was new. Fits: Mercedes Benz C230 Kompressor L4 1.8L