I purchased new rotors from the dealer less than 6 months ago.
Noisy from day 1, squeal, squeak, etc...
I even turned them once and it was moderately good for about a week and the squeaking resurfaced as others predicted..
I am an ASE certified tech and did NOT use dealer pads, probably contributed to the issue.
But, I have always used Wagner thermoquiets on all my audi's and several hundred customer vehicles in the past and never had any issues, but the only factor that was different is I never used composite rotors with these pads in the past.

I finally gave up on any assistance from the dealer, they wanted $100 to diagnose my rotors which were now warped/deposit built up.

I purchased new rotors from Rock Auto that were also made by wagner fo $75 each.

Installed them, and it's been a week, I must say from the first time i stopped with these rotors and pad combo, it felt right!

I will never, ever again buy composite rotors from the dealer.

-Richard