I would get that actioned soonest: NHTSA CAMPAIGN ID:
21V295000 Report Date:
APR 25, 2021 Vehicles Affected:
A broken lock nut may misalign the rear axle, causing a loss of control and increasing the risk of a crash. What You Should Do:
Dealers will replace the lock nuts and, if necessary, the associated bolts, free of charge. Owner notification letters are expected to be mailed June 25, 2021. Owners may contact Audi customer service at 1-800-253-2834. Audi's number for this recall is 42L1.