Mercedes-Benz E320 CDI Repair and Maintenance

A guide to problems, costs, maintenance and repair for your Mercedes-Benz E320 CDI

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.

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

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

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When the engine is cold, the glow plug light on the dash will not come on when the key is turned to the "ON" position. If I try turning it further, to the "START" position, the engine will not turn over. The glow plug light must come on and then go out, in order for the igniti...

comes and goes

Does anyone have a shop manual for a 2005 E320CDI? I want to purchase one,

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The Diesel engine may stall and not restart due to a faulty crankshaft sensor. Dealers will replace the sensor free of charge to correct the problem.

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