WARNING: This page is about a different car, the 2024 Audi SQ7, 2024 Audi Q7, 2023 Audi SQ7, and 2023 Audi Q7. However, it is still accessible from the selected car via links, so may be relevant.
Fig 1: Identifying Cover
Courtesy of AUDI
-- Carefully expand the cap -arrows- and lift off.
-- Carefully remove the washer nozzle -2- from the connecting tube -arrow-.