Shims position
WARNING: This page is about a different car, the 2005 Audi A4, 2004 Audi A4, 2003 Audi A4, and 2002 Audi A4. However, it is still accessible from the selected car via links, so may be relevant.
NOTE:
Adjustment overview when replacing individual components of transmission. .
S1 - Shim for ring gear in cover for final drive
S2 - Shim for ring gear in transmission housing
S3 - Shim for drive pinion in transmission housing
S4 - Shim for drive pinion in transmission cover