Failed Gateway Module May Cause Lack of Audio/Cell Phone Functionality on Mercedes-Benz CLS550

Problem Description and Possible Solution

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

Problem Data
RepairPal Verified
Average mileage: 26,000 (22,000–30,000)
4 model years affected: 2007, 2008, 2009, 2010
7 people reported this problem
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blue tooth doesn't always work
car at dealer, waiting for repair