going back and forth with the dealer on my 2006 A6 and a persistent leak, has anybody seen this yet? the leak forms on the under engine shroud and has been "repaired" 2x by the dealer(car has 1300 miles). the first leak was a loose power steer line, the second was a tranny main seal that was replaced and the car is still leaking. apparently the tranny is all new for 2006; sealed and uses a light green fluid! the leak looks like tranny fluid and the car will be inspected by an audi regional rep soon. but the saga continues.......