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NHTSA Recall 21V707000: Antilock/traction control/electronic limited slip (service brakes) and service brakes, hydraulic

Volkswagen Group of America, Inc. reported this safety recall to NHTSA on , covering an estimated 38 vehicles. It affects 2021 Audi e-tron.

38
vehicles potentially affected
1
model affected
2021
owners notified (September 30)
NHTSA campaign21V707000
Manufacturer campaign47R7
ComponentsSERVICE BRAKES, HYDRAULIC › ANTILOCK/TRACTION CONTROL/ELECTRONIC LIMITED SLIP; SERVICE BRAKES, HYDRAULIC
Report receivedSeptember 13, 2021
Owner notificationSeptember 30, 2021
Initiated byManufacturer

Defect

Volkswagen Group of America, Inc. (Audi) is recalling certain 2021 Audi E-Tron Quattro and E-Tron Sportback Quattro vehicles. Corrosion in the brake booster may cause the Anti-Lock Brake System (ABS), Electronic Stability Control (ESC), speedometer display, and brake assist to stop functioning.

Safety risk

A loss of braking assist, ABS, and ESC will increase the effort and distance required to stop, increasing the risk of a crash.

Remedy

Dealers will replace the brake booster, free of charge. Owner notification letters were mailed September 30, 2021. Owners may contact Audi customer service at 1-800-253-2834. Audi's number for this recall is 47R7.

Notes

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.

Vehicles covered by recall 21V707000

Make and modelModel years
Audi e-tron2021

Being listed here means the campaign covers the model year, not that every car was built with the defect or is still unrepaired. Enter your VIN above to check your specific vehicle. Recall repairs are free at authorised dealers. Source: NHTSA, October 2026.