A broken lock nut may misalign the rear axle, causing a loss of control and increasing the risk of a crash.

Suspension — Rear — Axle — Non-Powered Axle Assembly

Summary

Volkswagen Group of America, Inc. (Audi) is recalling certain 2021 Q7, Q8, Q5 Sportback, SQ5 Sportback, RS6 Avant, RS7, RS Q8, 2020-2021 Audi S6 sedan, Q5, A8, S8, A7, A6 Allroad, A5 Cabriolet, A4 sedan, A4 Allroad, SQ5, S7, A6 sedan, S5 coupe, S4 sedan, S5 Cabriolet, A5 coupe, 2019-2021 RS5 coupe, A5 Sportback, S5 Sportback, RS5 Sportback vehicles. The lock nut on the trailing arm of the rear axle may break due to stress corrosion.

Actions

Dealers will replace the lock nuts and, if necessary, the associated bolts, free of charge. Owner notification letters were mailed June 4, 2021. Owners may contact Audi customer service at 1-800-253-2834. Audi's number for this recall is 42L1.

Documents (16)

• Remedy Instructions and TSB
• Defect Notice 573 Report
• Recall Acknowledgement
• Manufacturer Notices(to Dealers,etc) - AUDI Date: May 28, 2021 Repair Available Safety Recall 42L1 / Rear Axle Trailing Arm Lock Nut
• Remedy Instructions and TSB
• Manufacturer Notices(to Dealers,etc) - AUDI Date: May 28, 2021 Repair Available Safety Recall 42L1 / Rear Axle Trailing Arm Lock Nut
• Recall Quarterly Report #1, 2021-2
• ISSUED Owner Notification Letter(Part 577) - 42L1_Audi Customer PRI
• ISSUED Owner Notification Letter(Part 577) - 42L1_Audi Customer
• Date June 17, 2021 42L1 Campaign Tip Wind Deflector Pins
• Remedy Instructions and TSB
• Manufacturer Notices(to Dealers,etc) - AUDI Date: May 04, 2021 Advance Notice Safety Recall 42L1 / Rear Axle Trailing Arm Lock Nut
• Remedy Instructions and TSB
• Remedy Instructions and TSB
• Recall Quarterly Report #2, 2021-3
• Recall Quarterly Report #3, 2021-4

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