Volkswagen Group of America, Inc. (Volkswagen) is recalling certain 2021 E-Tron Quattro and 2020-2021 Audi E-Tron Sportback Quattro vehicles. An improperly welded rotor and shaft may separate within the integrated brake system.
Separation of the rotor and shaft may cause a reduction in braking assistance and a loss of the Antilock Brake System (ABS) and Electronic Stability Control (ESC), increasing the risk of a crash.
Dealers will replace the brake booster, free of charge. Owner notification letters were mailed September 14, 2021. Owners may contact Audi customer service at 1-800-253-2834. Volkswagen's number for this recall is 47R1.
Owners may also contact the National Highway Traffic Safety Administration Vehicle Safety Hotline at 1-888-327-4236 (TTY 1-800-424-9153), or go to www.nhtsa.gov.