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: 166,587 (87,000–260,000)
4 model years affected: 1990, 1991, 1992, 1993
12 people reported this problem
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Viewing 1 - 6 of 6 problem details
1990 Mercedes-Benz 300E 135,700 mi,
EHA valve has failed
1992 Mercedes-Benz 300E 200,000 mi,
Erratic reeving stalling on the low rpm, rpm jumps up and down really rough heavy vibration when maintaining cruising speeds. Horrible fuel mileage.
1992 Mercedes-Benz 300E 186,000 mi,
Fuel smell and slow acceleration
1991 Mercedes-Benz 300E 260,000 mi,
My EHA is leaking like a broken toilet found a used one on ebay for 60 dollars
1990 Mercedes-Benz 300E 87,000 mi,
EHA was seeping fuel out of vent hole. Replacement took 15 minutes (2 bolts, 2 viton Orings)
1991 Mercedes-Benz 300E 181,000 mi,
Strong odor of gas fumes inside car. Also after exiting the car.