2012 Mercedes-Benz E350 4MATIC Repair and Maintenance

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

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

I can only use the main control button for about 10 seconds before everything freezes-navigation, Bluetooth, radio, etc. The radio turns off for 3 seconds then goes back on.

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