WARNING: This page is about a different car, the 1999 Audi A8, 1998 Audi A8, and 1997 Audi A8. However, it is still accessible from the selected car via links, so may be relevant.
Fig 1: Identifying Special Tool (3348A) Windshield Wiper Adjuster
Courtesy of AUDI OF AMERICA, INC.
Fig 2: Identifying Special Tool (3125A) Windshield Washer Aiming Tool