Failed Gateway Module May Cause Lack of Audio/Cell Phone Functionality on Mercedes-Benz E550 4MATIC

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

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Average mileage: 31,800 (7,600–56,000)
4 model years affected: 2007, 2008, 2009, 2010 more
6 people reported this problem
2 people shared problem details
Audio (Radio, Phone, CD) intermittently goes silent. All software updated on auto and still recurs. Dealership says it needs input from Mercedes and that is where it stands. I am going to suggest that it try to replace gateway module based on these reports. ROW
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phone works i can hear you but u cant hear me

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