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Steering wheel buttons, horn, and shifter paddles not working

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S-Class (W221) 2007-2013: S 320 CDI, S 350, S 450, S 500, S 550, S 420 CDI, S 600

Steering wheel buttons, horn, and shifter paddles not working

 
Old 02-02-2019, 09:42 AM
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Steering wheel buttons, horn, and shifter paddles not working

I have a 2007 s550, I just got the car back from having the airmatic pump replaced. A couple days later all the buttons, horn, and shifter paddles are not working. Anyone have an idea of what could be the issue?

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Old 02-02-2019, 11:11 AM
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My guess is that they accidentally disconnected some wires when working on your car. Take it back and have them rectify it.
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Old 02-02-2019, 11:21 AM
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I agree, request they perform a quick test using MB diagnostics to pull fault codes. There was a bulletin released but doubt this pertains to your situation nevertheless, it documents steering wheel electronics can be replaced separately if need be.
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