Whining sound from the engine/transmission. Most noticeable until the car warms up and then drops off slightly. Dealer/Audi cannot identify the sound and the car has been of and on in the shop. A concern and annoyance.
Annoyance - strange rattle from between the rear seats/suspension that the dealer cannot fix.
First experience with Audi. If the dealer cannot fix my complaints - I will never buy an Audi again.
I too experience a whining noise until the car warms up (A6-2.7). I am having other minor problems as well which I hope the dealer will address.