Engine Control Unit ECU A2789001300
CLS W218; E W212; E COUPE W207; ML W166; GL X166; SL W231
Engine Control Unit (ECU).
Part number: A2789001300
An engine control unit (ECU) is a type of electronic control unit that controls a series of actuators on an internal combustion engine to ensure optimal engine performance. It reads different data from a multitude of sensors within the engine, interprets the values using lookup tables and adjusts the engine actuators accordingly. Among other things it controls the Air/Fuel ratio, ignition timing, idle speed, etc. Adjusting the inside parameters may on the one hand increase the engine power and on the other hand decrease the life time of your engine. Thus ECUs should be handled by professionals and/or tuning specialists only.