Secured Threaded Connections
WARNING: This page is about a different car, the 2021 Audi e-tron Quattro and 2019 Audi e-tron Quattro. However, it is still accessible from the selected car via links, so may be relevant.
Installed bolts that are >>microencapsulated<< must be replaced, and the threaded holes must be cleaned with a suitable thread tap.