S5 Quattro Coupe V8-4.2L (CAUA) (2009)
Cellular Phone Microphone: Service and Repair
Microphone Unit in Front Roof Module
The Microphone Unit (in front roof module) (R164) located in the Front Interior Light (W1) can be replaced only as a complete unit.
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Turn off all electrical consumers.
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Remove ignition key.
Removing
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Remove the Front Interior Light (W1).
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Unclip harness connector - 5 - from retainer in Front Interior Light (W1) and disconnect harness connector.
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Pry the individual microphones - 1 -, - 3 - and - 4 - out of the retainer.
Installing
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Install in reverse order.