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Problems for specific Mercedes-Benz E320 years:

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Most reported Mercedes-Benz E320 problems

 

Verified for the Mercedes-Benz E320
A knocking noise from the front end can be caused by cracked strut tower bushings.
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Verified for the Mercedes-Benz E320

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 E320

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

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Verified for the Mercedes-Benz E320

Lack of audio or cell phone functionality may be related to the failure of the audio gateway module.

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Verified for the Mercedes-Benz E320

Many software updates are available for the different computer systems, but if the vehicle is out of warranty, it may cost money to receive the updates (unless it is a recall). Some updates may be dealer-only, but a well-equipped independent shop can usually provide updates as well.

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Verified for the Mercedes-Benz E320

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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Verified for the Mercedes-Benz E320

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 E320

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 E320

Bad spark plug wires can cause misfires; the Check Engine Light may illuminate.

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Verified for the Mercedes-Benz E320

The anti-lock brake system (ABS) modulator assembly may fail due to dirty brake fluid. Our technicians recommend a complete brake system flush every two years in order to help prevent this problem.

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Verified for the Mercedes-Benz E320

Irregular and premature tire wear can be caused by the front thrust link bushings cracking and causing excessive movement in the suspension. The thrust link bushings are fluid-filled (to help reduce vibration), so if they crack, they will leak oil.

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Verified for the Mercedes-Benz E320

One or more of the following steering linkage components may wear prematurely;  tie rod ends, drag link, or idler arm. Our technicians remind us the wheel alignment should be checked and adjusted if any of these items are replaced.

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Verified for the Mercedes-Benz E320

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

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Verified for the Mercedes-Benz E320

A vibration felt through the center floor of the vehicle can be caused by cracked and/or shredded driveshaft flex discs, resulting in excessive driveshaft movement. If not repaired, damage to the driveshaft center support bearing, transmission, or differential can occur.

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Verified for the Mercedes-Benz E320

The mass air flow (MAF) sensor tends to fail. The engine air filter should be replaced when the mass air flow sensor is replaced; a dirty filter can allow debris to damage the new sensor.

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