Removal & Installation
WARNING: This page is about a different car, the 1993 Mercedes-Benz 190E. However, it is still accessible from the selected car via links, so may be relevant.
Control unit is located in engine compartment. Turn ignition off. Push back holding springs. Remove electronic control unit from bracket. Actuate lock. Pull plug from unit. To install, reverse removal procedure. When mounting plug on unit, ensure plug lock can be heard engaging.