Engine Control Module
WARNING: This page is about a different car, the 1993 Mercedes-Benz 300E. However, it is still accessible from the selected car via links, so may be relevant.
The engine control module is located in right rear corner of engine compartment in component compartment. See Figure . Voltage is supplied to engine control module from overvoltage protection relay. The engine control module receives engine operating information from sensors and controls fuel injection and ignition timing.