Gas-Filled Strut, Removing And Installing: Installing
WARNING: This page is about a different car, the 2021 Audi S4 and 2021 Audi A4 Quattro. However, it is still accessible from the selected car via links, so may be relevant.
Installation in reverse order of removal and note the following:
-- Press the gas-filled strut onto the ball stud until it engages audibly.