ENGINE CONTROL UNIT MERCEDES BENZ A6519003603 A6519013302
Below you will find short information about the engine control unit with part numbers A6519003603 and A6519013302, used in Mercedes-Benz vehicles equipped with OM651 diesel engines.
Which models does the A6519003603 ECU fit?
This ECU is used in selected Mercedes-Benz models with OM651 diesel engines (including certain years of C-Class, E-Class, GLK, GLC, Vito and Sprinter). Part numbers A6519003603 and A6519013302 refer to the same engine control module. To ensure correct fitment, it is best to confirm compatibility using the vehicle VIN.
Are A6519003603 and A6519013302 the same ECU?
Yes — both numbers refer to the same engine control unit. The differences are only due to the way the numbers are written in Mercedes-Benz catalogs or electronics supplier listings. If the part numbers match, the modules are interchangeable.
What symptoms may indicate ECU failure?
The most common symptoms include starting problems or unstable engine operation. The vehicle may lose power, respond with delay to the accelerator pedal, or enter limp mode. Sometimes there is no diagnostic communication with the ECU. These symptoms often indicate ECU-related issues.
Does this ECU require programming?
Yes — after installation, the module usually needs to be matched to the specific vehicle. This typically includes ECU parameter setup and immobilizer configuration for Mercedes-Benz. The procedure should be carried out by an automotive electronics specialist. After proper programming, the module works correctly.
