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Problems for specific Mercedes-Benz E320 BLUETEC years:

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Most reported Mercedes-Benz E320 BLUETEC problems


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

3 Reports
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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.

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