Problems for specific Mercedes-Benz E320 BLUETEC years:

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Newest reported 2007 Mercedes-Benz E320 BLUETEC problems

 

Reported by Wisenheimer and 2 others for the Mercedes-Benz E320 BLUETEC

Engine light on, but car working well, EXCEPT no downshift on acceleration. Power off slightly. Cause was a leak in the large diameter high pressure hose to/from the intercooler.

3 Reports
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Verified for the Mercedes-Benz E320 BLUETEC

The release tab for the center console can fall off unexpectedly.

3 Reports
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Verified for the Mercedes-Benz E320 BLUETEC

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

4 Reports
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Verified for the Mercedes-Benz E320 BLUETEC

Water can damage the weight sensor in the front, passenger seat, causing the SRS (airbag) light to illuminate. There is an electrical component in the seat cushion susceptible to fluid damage. Any spills should be dried up immediately in order to try and prevent damage to the sensor.

3 Reports
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Verified for the Mercedes-Benz E320 BLUETEC

A failed digital heater control valve can cause a lack of heat output from the climate control system.

3 Reports
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Verified for the Mercedes-Benz E320 BLUETEC

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.

3 Reports
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Verified for the Mercedes-Benz E320 BLUETEC

The early versions of the central gateway module (which allows different systems to communicate with each other) have software problems. 

5 Reports
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Verified for the Mercedes-Benz E320 BLUETEC

The electrical connector at the automatic transmission may leak fluid into the wiring harness. If not repaired, the oil will migrate through the wiring harness and damage the transmission control module. A new harness and control module may be necessary to correct this problem.

4 Reports
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Verified for the Mercedes-Benz E320 BLUETEC

Rear air springs (bellows) may develop leaks, which causes the air pump to run more often to maintain ride height. Our technicians recommend that leaking air springs be replaced.

3 Reports
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Verified for the Mercedes-Benz E320 BLUETEC

The relay which turns the airmatic suspension pump on may fail causing the pump to run continuously. This can result in failure of the pump motor or a dead battery as the pump motor will continue to run after the car is turned off. Also, Worn airmatic pump mount bushings can causes noises in the front axle while driving on bumpy roads or a buzzing noise while the pump is running.

3 Reports
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Verified for the Mercedes-Benz E320 BLUETEC

It is not uncommon to encounter premature failure of the anti-lock brake system (ABS) modulator assembly due to dirty brake fluid. Our technicians recommend flushing the brake fluid every two years in order to help prevent this problem.

3 Reports
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Verified for the Mercedes-Benz E320 BLUETEC

High mileage or older vehicles commonly develop leaks from the differential seals and/or cover. Our technicians recommend a complete reseal of the differential unit whenever these leaks are repaired.

6 Reports
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Verified for the Mercedes-Benz E320 BLUETEC

The cup holder in the center console may break.

3 Reports
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Verified for the Mercedes-Benz E320 BLUETEC

A vibration felt through the center floor of the vehicle can be caused by driveshaft flex discs, which crack and shred, causing excessive driveshaft movement. Not repairing these can cause damage to the driveshaft center support bearing, or, in the worst case scenario, damage to the transmission or differential.

3 Reports
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Verified for the Mercedes-Benz E320 BLUETEC

The ESP and BAS warning lights may illuminate due to a failed brake light switch. Replacement of the failed switch should correct this concern.

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