I have a 2001 A6 4.2L with a powered sunroof. It just recently started leaking in the roof during heavy rain and the car wash. Any thoughts on how I can address this?

 

only 2 places it could be getting in from. The windshield or the sunroof. Try cleaning out the sunroof drains. If they are clear, maybe call a windshield replacement company and see if they are able to detect a broken windshield seal.

 

There was an Audi maintenance bulletin on the sunroof last year. Email me at jjaiven@chartermi.net and I can send it to you. Too big to attach.