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Problems for specific Mercedes-Benz 300E years:

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Newest reported 1993 Mercedes-Benz 300E problems

 

Verified for the Mercedes-Benz 300E

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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Verified for the Mercedes-Benz 300E

The lower control arm bushings can wear and crack, leading to irregular and premature tire wear. Worn Ball joints can also cause similar tire wear problems. I some cases it may be necessary to replace the lower control arm, including bushings & ball joint to correct this concern.

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Verified for the Mercedes-Benz 300E

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.

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Verified for the Mercedes-Benz 300E

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

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Verified for the Mercedes-Benz 300E

The cooling system hoses may fail unexpectedly. The hoses can look good on the outside, but the rubber can degrade and erode on the inside. If not carefully checked, the hoses can burst at any time.

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Verified for the Mercedes-Benz 300E

Vehicles with automatic level control that ride harshly in the rear (no give in the suspension) may have one or both dampening actuators which have failed. It is commonly recommended the actuators be replaced in pairs.

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Verified for the Mercedes-Benz 300E

A coolant leak may develop from the water pump. When replacing the water pump, the drive belt tensioner should be inspected and most likely replaced as well.

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Verified for the Mercedes-Benz 300E

Motor mounts commonly fail, causing engine vibrations to be transferred to the body. Failed motor mounts should be replaced in order to prevent damage to the transmission mount.

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Verified for the Mercedes-Benz 300E

Due to age and sun exposure, the interior wood trim cracks and the finish gets a cloudy haze. Replacement if the trim would be the most common solution to the problem.

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Verified for the Mercedes-Benz 300E

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.

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Verified for the Mercedes-Benz 300E

The sunroof may not work correctly due to failed components as a result of age and wear. Repairing a sunroof can be labor intensive and very costly.

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Verified for the Mercedes-Benz 300E

A coolant leak may develop form the Radiator due to degradation of its plastic components. Replacement of the failed radiator will be necessary.

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Verified for the Mercedes-Benz 300E

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

 

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Verified for the Mercedes-Benz 300E

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.

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Verified for the Mercedes-Benz 300E

A worn steering dampening shock can cause a fluid leak at the front of the vehicle. If a leak is noted from the dampening shock, our technicians tell us that it should be replaced.

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