Failure of EHA valve may cause fuel/engine problems on Mercedes-Benz 300E

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.
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Average mileage: 164,283 (135,700–200,000)
4 model years affected: 1990, 1991, 1992, 1993
10 people reported this problem
4 people shared problem details
EHA valve has failed
Erratic reeving stalling on the low rpm, rpm jumps up and down really rough heavy vibration when maintaining cruising speeds. Horrible fuel mileage.
Strong odor of gas fumes inside car. Also after exiting the car.
Fuel smell and slow acceleration
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