1991 Mercedes-Benz 300E Q&A
1991 Mercedes-Benz 300E Question: Electro-hydraulic Actuator
This engine has Bosch mechanical fuel injection.The Electro-hydraulic Actuator is located on the fuel distributor on the right hand rear side (looking in from the radiator).The Fuel distributor is located in the center valley between the two cylinder heads. - patrick mannion
Fuel leaks, erratic or rough engine operation, and fuel economy issues can be caused by the failure of a fuel system component called the EHA (electro-hydraulic actuator) valve.