Worst 2021 Audi A4 Problems
Top 3 most-reported issues with average mileage at failure.
Electrical Faults
Lane Departure: Blind Spot Detection
Transmission / Drivetrain
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All Problems by Category
Every NHTSA complaint category for the 2021 Audi A4.
| Component | Complaints | Crashes | Fires | Avg Mileage | Volume |
|---|---|---|---|---|---|
| Electrical Faults | 3 | — | — | — | |
| Lane Departure: Blind Spot Detection | 2 | — | — | — | |
| Transmission / Drivetrain | 2 | — | — | — | |
| Suspension Failures | 2 | 1 | — | — | |
| Unintended Acceleration | 2 | 2 | — | — | |
| Airbags | 1 | 1 | — | — | |
| Engine Problems | 1 | — | — | — | |
| Forward Collision Avoidance: Automatic Emergency Braking | 1 | — | — | — | |
| Forward Collision Avoidance: Warnings | 1 | — | — | — | |
| Tire Defects | 1 | — | — | — |
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Read what owners actually reported to NHTSA for the 2021 Audi A4. Type a keyword (e.g. “transmission”, “stalling”, “brakes”) to filter.
Recalls for 2021 Audi A4
4 NHTSA recall campaigns affecting ~287,843 vehicles.
Volkswagen Group of America, Inc. (Volkswagen) is recalling certain 2021 Audi A8, RS7, RS6 Avant, RS5 Sportback, RS5 Coupe, Q8, Q7, Q5 Sportback, S4 Sedan, Q5, A7, A6, A6 Allroad, A5 Sportback, A5 Coupe, A5 Cabrioleet, A4 Sedan, A4 Allroad, E-Tron Sportback Quattro, SQ7, S5 Cabriolet, E-Tron Quattro, SQ8, SQ5 Sportback, SQ5, S8, S7, S6 Sedan, S5 Sportback, S5 Coupe, 2022 E-Tron GT, and 2021-2022 RSQ8 vehicles. Due to a software issue, a blank or black screen may be displayed instead of the rearview camera image when the vehicle is placed in reverse gear. As such, these vehicles fail to comply with the requirements of Federal Motor Vehicle Safety Standard number 111, "Rear Visibility."
Volkswagen Group of America, Inc. (Audi) is recalling certain 2019-2021 Audi A5 Sportback, RS5 Coupe, RS5 Sportback, S5 Sportback, 2020-2021 A4 Allroad, A4 Sedan, A5 Cabriolet, A5 Coupe, A6 Allroad, A6 Sedan, A7, A8, Q5, S4 Sedan, S5 Coupe, S5 Cabriolet, S6 Sedan, S7, S8, SQ5, 2021 Q5 Sportback, Q7, Q8, RS6 Avant, RS7, RSQ8, SQ5 Sportback, SQ7, and SQ8 vehicles. The rear axle alignment may not have been inspected after the repairs for Recall 21V-295 (42L1) were performed.
Volkswagen Group of America, Inc. (Volkswagen) is recalling certain 2021 Volkswagen ID4, Audi A4 Allroad, A4 Sedan, A5 Cabriolet, A5 Coupe, A5 Sportback, A6 Allroad, A6 Sedan, A7, A8, E-Tron Quattro, E-Tron Sportback Quattro, Q3, Q5, Q5 Sportback, Q7, Q8, RS5 Sportback, RS5 Coupe, RS6 Avant, RS7, RSQ8, S4 Sedan, S5 Cabriolet, S5 Coupe, S5 Sportback, S6 Sedan, S7, S8, SQ5, SQ5 Sportback, SQ7, SQ8, and 2021-2022 S3 Sedan vehicles. The rear seat belt automatic locking retractors may deactivate early, which can prevent the child restraint system from securing properly. As such, these vehicles fail to comply with the requirements of Federal Motor Vehicle Safety Standard number 208, "Occupant Crash Protection."
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.
Other Audi A4 Years
2021 Audi A4 — FAQ
Answers based on real NHTSA complaint and recall data for this specific model year.
Is the 2021 Audi A4 reliable?
What are common problems with the 2021 Audi A4?
How safe is the 2021 Audi A4?
Does the 2021 Audi A4 have any recalls?
Should I buy a 2021 Audi A4?
Source: NHTSA (National Highway Traffic Safety Administration) complaint and recall databases, aggregated by VinItel.
Wider context: See the full Audi A4 reliability report with year-by-year comparison and generation analysis.
Check Your Specific 2021 Audi A4
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