This part will fit:
AUDIA4 08-12/A4AR 10-16/A4Q 08-12/A5CA 10-11/A5CO 08-11/A8 10-13/A8 14-17/A8Q 10-13/A8Q 14-17/AQ5 09-12/RS5 10-16
8K0820521B
8K08205218K0820521C