Engine Mount, Removing And Installing: Notes
WARNING: This page is about a different car, the 2015 Audi A7 Quattro and 2014 Audi A7 Quattro. However, it is still accessible from the selected car via links, so may be relevant.
NOTE:
To avoid repeat repairs, do the following if the engine mount is faulty:
Replace the faulty engine mount and its retaining plate.
Likewise replace the engine mount on the opposite side, check the retaining plate and replace it if necessary.