A liquid spill in the rear seat, or water ingress from an insufficient body seam underneath the vehicle, may allow liquid to penetrate the gateway control module and cause it to shut down.
A gateway control module shutdown will suddenly reduce engine power, increasing the risk of a crash.
What to do
Dealers will install a protective cover on the gateway control module and seal an underbody seam -- as necessary -- free of charge.
Owner notification letters are expected to be mailed on February 24, 2022.
Owners may contact Audi customer service at (800) 253-2834. Audi's number for this recall is 90S9.