Rear Lid Remote Release Button -E233-, REMOVING AND INSTALLING: Installing
WARNING: This page is about a different car, the 2022 Audi SQ7 and 2022 Audi Q7. However, it is still accessible from the selected car via links, so may be relevant.
Install in the reverse order of removal while noting the following:
-- Press in the trim with the switch until the hooks engage in the mount.