
Bosch Engine Control Unit.

In this technical insight we illustrate you several types of Bosch engine control units.
First of all, Bosch ECUs should be divided in two macro areas: petrol ECUs and diesel ECUs.
Then, for each area we are going to clarify what each the single character stands for.

Petrol Bosch ECU
Petrol engine control unit are identified by M character at the beginning of name.
For example ecu in picture is a MED17.
We can find these type of ECUs:
- Bosch M1: M means Motronic;
- Bosch ME7: E means electronic throttle;
- Bosch MED17: D means direct injection;
- Bosch MEG1: G means that ecu manage also transmission.
- Bosch MEV17: V means BMW valvetronic (VVT).

Diesel Bosch ECU
Diesel engine control unit are identified by E character at the beginning of name.
For example ecu in picture is a EDC16C34.
We can find these type of ECUs:
- Bosch EDC: EDC means electronic diesel control;
- Bosch EDC15V: V means injection pump;
- Bosch EDC15P: P means pumpe nozzle;
- Bosch EDC16U1: U means pumpe nozzle;
- Bosch EDC16C34: C means common rail.