1993 Mercedes-Benz 300E Repair and Maintenance

A guide to problems, costs, maintenance and repair for your 1993 Mercedes-Benz 300E

1993 Mercedes-Benz 300E Problems

Failure of EHA valve may cause fuel/engine problems
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.
High Usage Vehicles May Experience Ignition Lock and Tumbler Failures

Due to wear, high usage vehicles can experience ignition lock and tumbler failures. The ignition lock cylinder will generally require replacement to correct this concern.

Engine Problems Due to Distributor Cap and Rotor, Bad Ignition Wires, or Valve Cover Gasket Leaks

A rough running motor or lack of power can be caused by a failed distributor cap or rotor, ignition wires (or their resistors), or valve cover gasket leaks. If the valve cover gasket leaks, oil can pool where the ignition wire resistor connects to the spark plug. The resistor can fail and the spark plug may not fire because of a short circuit through the oil.

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1993 Mercedes-Benz 300E Questions

is there a need to clean the throttle body actuator and how? (1 answer)

is there a drain plug on the gas tank? if not how do i drain the tank? (1 answer)

the car has sat for five years

1991 300e what microprocessor controls the idle air control valve? (1 answer)

I replaced the idle air control valve because when the car is warmed up and I come to a full stop at idle with the car in drive, the idle drops too low, below 500 rpms. A mechanic cleaned the electrical plug which plugs into a component that is also connected to the idle control valve and it wor...

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1993 Mercedes-Benz 300E Reviews

Great car - family owned it forever. Few problems that were not mileage-appropriate.

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