Aluminum and solar sunroof headliner, removing and installing: Removing

Slide sunroof open approx. 10 cm toward rear.
Spread retaining clips open to left and right (arrows) and open sunroof headliner toward rear.
NOTE: Illustration shows retaining clip from inside sunroof headliner.

Fig 1: Spreading Retaining Clips Open

Courtesy of AUDI OF AMERICA, INC.

Close sunroof.
Stick adhesive tape over retaining clips at left and right to prevent clips from locking in sunroof panel when sunroof is tilted open.

Fig 2: Applying Adhesive Tape To Prevent Clips From Locking In Sunroof Panel
Courtesy of AUDI OF AMERICA, INC.

NOTE: When the sunroof is tilted open, the retaining clips on the sunroof headliner must not lock into the sunroof panel. If the clips lock into the panel, the sunroof will no longer close without damaging the mechanism.
Close sunroof, tilt open and slide sunroof headliner forward completely.
Retaining clips can no longer snap into sunroof panel.
Push sunroof headliner over rain channel and remove from sunroof opening toward rear.