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.
Cut caused by a sharp-edged obstacle -arrow-.
Fig 1: Identifying Tire Damage Caused By A Sharp-Edged Object
Courtesy of AUDI OF AMERICA, LLC
Only trained personnel can decide if a cut destroyed the tire.