When I press the dashboard button for the rear defroster, the light comes on and, the outside mirror defrosters, which are also controlled by the same switch, begin to defrost. I have no indication the rear window defroster is working no matter how long I wait. I don't see a fuse specified in the owners manual. Can anyone help me with this? The window grid appears to be intact.
 
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Ask Your Question2007 Audi A8 Quattro
Question: How do I troubleshoot my rear window defroster?
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