WARNING: This page is about a different car, the 2024 Audi SQ8, 2024 Audi Q8, 2023 Audi SQ8, and 2023 Audi Q8. However, it is still accessible from the selected car via links, so may be relevant.
Fig 1: Pull Wiper Blade Down Out Of The Wiper Arm
Courtesy of AUDI
-- Remove the wiper arm from the rear window.
-- Pull the wiper blade -1- downward out of the wiper arm -2- -arrow-.