Buying a used 2021 Audi S4? Check these 4 recalls first
The 2021 Audi S4 has 4 recalls in this group. They cover rear axle lock nut breakage, rear belts that may not secure child seats, a potentially missed rear axle alignment check, and a backup camera screen that may go blank in reverse. The recall record spans axle hardware, restraints, and reversing visibility. NHTSA lists 2 unverified owner complaints, with 1 electrical system entry and 1 unknown or other entry. The reports record 0 crashes, 0 fires, and 0 injuries.
Before you buy
- Get the 17-character VIN from the seller and run it at nhtsa.gov/recalls. It shows which recalls are still unrepaired on that exact car.
- Verify rear axle lock nut recall completion and alignment documentation.
- Confirm completion of the rear seat belt child-seat recall.
- Verify the backup camera repair and ask about intermittent electrical faults.
- Open recalls are repaired free at any Audi dealer, whoever owns the car — an open recall is a to-do item, not a bill.
Recalls covering the 2021 Audi S4
| Recall | Area | Severity |
|---|---|---|
| Audi rear axle lock nut may break | Suspension | high |
| Audi and VW rear belts may not secure child seats | Seat Belts | high |
| Audi rear axle alignment may not have been checked | Tires | medium |
| Audi backup camera screen may go blank in reverse | Back Over Prevention | medium |
What owners have reported to NHTSA
2 complaints filed for this model year. Complaints are unverified owner reports, and popular models collect more of them simply because more are on the road.
| Problem area | Complaints | Recall in this area? |
|---|---|---|
| Electrical System | 1 | None found |