I have bought the A6 early this year.
I have two issue here:
(A)
1) Before the 1st service the Tyre pressure monitor is working well.
2) After the service I found that not even one of the tyre pressure drop, it did not work.
At one time there is a big screw poke into one tyre , it did not work too.
3) I have when to the Audi service centre several times and have tune the software , after tuning ,we reduce one tyre pressure to 200 others remain at 245, it did not work too.

(B)
The rubber on both sides of the front screen, has white patching. cannot rub or wash away. The Service centre change once for me, but back again.
The service centre said it is due to water stain. but other side window rubber have no patching. They said even change again will be the same.

Is there anyone facing the same problem.