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Mercedes-Benz » 300CE » 1993 Mercedes-Benz 300CE » Car Problems

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1993 Mercedes-Benz 300CE Problems

Electrical Issues Due to Degraded Engine Wiring Harness

for the Mercedes-Benz 300CE

The engine wiring can degrade because the insulating material falls off leaving the bare wire exposed. This can cause many problems depending on which wires are exposed and what they touch.

7 Reports

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Rough Running Engine Due to Misfire

for the Mercedes-Benz 300CE

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.

6 Reports

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Engine Oil and Coolant Leaks Resulting in Fulid Intermix

for the Mercedes-Benz 300CE

Internal and External engine oil & coolant leaks can develop from the head gasket and/or timing cover gasket; these leaks should be repaired before the engine oil and coolant intermix which can result in severe engine damage.

5 Reports

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Throttle Valves May Experience Electrical Failure

for the Mercedes-Benz 300CE

The electronic throttle assembly may suffer an electrical failure. It is often cheaper to send the valve to a service center for repair that to purchase a new part.

4 Reports

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Buttons on temperature control assemblies work erratically due to wear of parts in control head

for the Mercedes-Benz 300CE

Due to wear of mechanical parts in the control head, the buttons on temperature control assemblies work erratically or not at all. These control heads need to be replaced for this concern or when the display screen starts to fade out.

4 Reports

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Part that attaches distributor rotor to camshaft may break

for the Mercedes-Benz 300CE

The part that attaches the distributor rotor to the camshaft can break; the starter will still crank, but the engine will not start.

4 Reports

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Excess Free Play in Steering and/or Alignment Issue

for the Mercedes-Benz 300CE

The tie rod ends, idler arm, and/or drag link components of the steering linkage may wear prematurely. Please keep in mind the wheel alignment should be checked and adjusted when any of these items are replaced.

4 Reports

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ABS Modulator Failure Due to Dirty Brake Fluid

for the Mercedes-Benz 300CE

As brake fluid becomes dirty over time, it can cause a failure of the anti-lock brake system (ABS) modulator assembly. Our technicians recommend a complete brake system flush every two years to help prevent this issue.

4 Reports

Me Too

The Speedometer May Fail Due to Internal Drive Gear Wear

for the Mercedes-Benz 300CE

Due to wear of the internal drive gear, the speedometer can stop working.

4 Reports

Me Too

Improper Temperature Output From HVAC

for the Mercedes-Benz 300CE

One or more blend door vacuum actuators may fail resulting in the incorrect output temperature from the HVAC system. Failed actuators will require replacement to restore proper HVAC operation.

4 Reports

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Head Light Lenses Become Cloudy/Opaque

for the Mercedes-Benz 300CE

The lenses for head lights may become opaque (cloudy or hazy) as a result of sun exposure. This can reduce the effectiveness of the lights. Our technicians tell us plastic polishes can improve the clarity of the lenses, but replacement of the lamp housings is necessary to regain full intensity of the lights.

4 Reports

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Transmission Oil Seals May Leak on High Mileage Vehicles

for the Mercedes-Benz 300CE

High mileage vehicles may develop a transmission fluid leak from one or more of the oil seals.

4 Reports

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Failure of EHA valve may cause fuel/engine problems

for the Mercedes-Benz 300CE

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.

4 Reports

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Noise and/or Smoke From Drive Belt Area

for the Mercedes-Benz 300CE

The emissions air injection pump can seize, causing a loud squealing noise followed by smoke from the drive belt. If the engine is not turned off, the belt will break, turning on the alternator/battery warning light.

4 Reports

Me Too