» »

Problems for specific Mercedes-Benz E420 years:

Car problem reports

Report A Problem

Problem with your car? See what our experts say or submit your own.

Repairpal verified Mercedes-Benz E420 problems

 

Verified for the Mercedes-Benz E420

The mass air flow sensor can fail, resulting in poor fuel economy and Check Engine Light illumination.

3 Reports
Me Too

Verified for the Mercedes-Benz E420

The evaporator temperature sensor can fail, causing the AC compressor not to cycle. If the AC compressor does not turn on, the AC system will not blow cold air. If the compressor is stuck on, the air will be very cold at first, before warming up.

1 Report
Me Too

Verified for the Mercedes-Benz E420

Ports in the cylinder head related to the emissions air injection and EGR systems can clog; the cylinder head should be removed and the ports cleaned.

2 Reports
Me Too

Verified for the Mercedes-Benz E420

A faulty mass air flow (MAF) sensor can cause erratic/rough engine operation and fuel economy issues. Since this sensor measures the actual amount of air entering the motor, when it fails, the engine control module (ECM) takes the wrong information and delivers incorrect volumes of fuel to the cylinders.

4 Reports
Me Too

Verified for the Mercedes-Benz E420

Failed spark plug wires and/or ignition coils can cause intermittent misfires (rough running); the Check Engine Light may also illuminate. Diagnoses of the ignition system will be necessary to determine which components are at fault.

3 Reports
Me Too

Verified for the Mercedes-Benz E420

Instrument cluster displays tend to fail, especially the clock and gear indicators; the instrument cluster needs to be replaced.

5 Reports
Me Too

Verified for the Mercedes-Benz E420

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

2 Reports
Me Too

Verified for the Mercedes-Benz E420

Irregular and premature tire wear can be caused by the lower control arm bushings cracking, resulting excessive movement at the control arm pivot point. Ball joints can also wear out prematurely, causing similar tire wear symptoms. I some cases it may be necessary to replace the lower control arm, including bushings & ball joint to correct this concern.

2 Reports
Me Too

Verified for the Mercedes-Benz E420

A squeak from the steering column is often related to a rubber boot in the column or a seal in the power steering rack.

2 Reports
Me Too

Verified for the Mercedes-Benz E420

Due to exposure to the sun, lenses for head lights may become opaque (cloudy or hazy). This reduces 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 the only way to regain the full intensity of the lights.

2 Reports
Me Too

Verified for the Mercedes-Benz E420

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

2 Reports
Me Too

Verified for the Mercedes-Benz E420

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.

2 Reports
Me Too

Verified for the Mercedes-Benz E420

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.

1 Report
Me Too

Verified for the Mercedes-Benz E420

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.

2 Reports
Me Too

Verified for the Mercedes-Benz E420

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.

2 Reports
Me Too
Ask a Question
More about this car