WARNING: This page is about a different car, the 2024 Audi A4 allroad. However, it is still accessible from the selected car via links, so may be relevant.
Fig 1: Roof End Strip
Courtesy of AUDI OF AMERICA, LLC
-- Free up the roof end strip near the rear lid seal -1-.
-- Unclip the roof end strip -2- using the Trim Removal Wedge :3409
-arrows-.