Thanks for the replies guys, guess it is normal. Never really noticed it but then again I have not driven the car in so long.
Apparently there is a new CVT out that was introduced in week 48, if the CVT has to be replaced they replace it with the new one, wonder whats different in the new one? Just some info for those with CVT that might have issues, I might get mine checked out just for fun, who knows maybe they will replace it :P.
I recently had a B8 A4 for a few months before getting rid of it and I have to say 6 speed auto was very jerky and noisy. The CVT in the A6 is far quieter and smoother. The 6 speed would also jerk nastily in reverse or in drive and would make awful noise upon fast acceleration. The new 8 speed is somewhat quieter but still not nice IMO. Maybe its a Audi thing?