2012 Mercedes-Benz E350 4MATIC Repair and Maintenance

A guide to problems, costs, maintenance and repair for your 2012 Mercedes-Benz E350 4MATIC

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

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I am considering purchasing a 2012 mercedes e350 from carmax with 22000 miles. I pulled the carfax report and it shows the outside mirror replaced and repaired at 3418 miles. The a/c condensor was replaced at the 10,000 mile service. The valve cover gasket and timing chain/tensioner were replaced...

Service B - $495
Transmission Service - $350
Replacement Spark Plugs $715
Passenger Seat Motor & Connectors - $816
Blind Spot Assist Message INOP on Dash - $780
Serpentine Belt - $222
Command Power Up Check(radio,cd,nav, etc not working) - $365
Any help would be appreciated!

Fades in and out...is it the speakers how do i check what can be wro.g

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