2021 Audi A6: Recalls, Problems & MPG
Here are the deets on the 2021 Audi A6: 11 recalls, 17 owner complaints and up to 26 mpg combined.
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Recalls
11 vehicle recalls from the manufacturer. Repairs are free. Check your VIN to see if one is still open on your car.
Airbags, Electrical Vehicle recall #20V749000 · 2020 · 166 vehicles
What's wrong: Volkswagen group of america, Inc. (Audi) is recalling certain 2021 Audi a6 allroad, q7, rs6 and rs7 vehicles. The electrical connector can detach from the door crash sensor in either of the front doors.
Why it matters: A detached connector can delay the activation of the restraint systems, including the side air bag, curtain air bag and/or seat-belt pretensioners during a side impact crash, increasing the risk of injury.
The fix: Audi will notify owners, and dealers will inspect, and as necessary, replace the crash sensors in both front doors, free of charge. The recall began December 23, 2020.
Airbags Vehicle recall #21V159000 · 2021 · 3,421 vehicles
What's wrong: Volkswagen group of america, Inc. (Audi) is recalling certain 2021 Audi rs6 avant, rs7, 2020-2021 a6 allroad, s6 sedan, s7, 2019-2021 a6 sedan, and a7 vehicles. The score line on the passenger air bag May not have been manufactured correctly.
Why it matters: An incorrectly manufactured air bag May not deploy properly, and could also eject plastic debris into the passenger compartment, increasing the risk of injury during a crash.
The fix: Audi will notify owners, and dealers will inspect the passenger air bag score line, and repair it as necessary, free of charge. The recall begin March 26, 2021.
Suspension Vehicle recall #21V295000 · 2021 · 40,993 vehicles
What's wrong: 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…
Why it matters: A broken lock nut May misalign the rear axle, causing a loss of control and increasing the risk of a crash.
The fix: Dealers will replace the lock nuts and, if necessary, the associated bolts, free of charge. Owner notification letters were mailed June 4, 2021.
Seat belts, Seat belts Vehicle recall #21V606000 · 2021 · 45,496 vehicles
What's wrong: 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…
Why it matters: An unsecured child restraint system can increase the risk of injury during a crash.
The fix: Dealers will inspect, and replace as necessary, the middle-rear seat belt assemblies, free of charge. Owner notification letters were mailed August 27, 2021.
Tires, Suspension Vehicle recall #22V034000 · 2022 · 31,058 vehicles
What's wrong: 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…
Why it matters: Rear axle misalignment May cause premature or uneven tire wear, increasing the risk of a crash.
The fix: Dealers will inspect the rear axle, adjust the alignment as necessary, and replace any prematurely or unevenly worn tires, free of charge. Owner notification letters were mailed March 3, 2022.
Electrical Vehicle recall #22V155000 · 2022 · 47,238 vehicles
What's wrong: Volkswagen group of america, Inc. (Audi) is recalling certain 2021-2022 rs6 avant and rs7, 2020-2022 a6 allroad, s6 sedan, and s7, and 2019-2022 a6 sedan and a7 vehicles. The fuel level sender May stick, causing an inaccurate fuel level reading to be displayed on the instrument cluster.
Why it matters: An inaccurate fuel reading May cause an engine stall due to lack of fuel, increasing the risk of a crash.
The fix: Dealers will install a new sensor in the tank, free of charge. Owner notification letters were mailed February 17, 2023.
Backup camera Vehicle recall #22V742000 · 2022 · 170,296 vehicles
What's wrong: 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…
Why it matters: A blank rearview camera display can reduce the driver's rear visibility, increasing the risk of a crash.
The fix: Dealers will update the infotainment unit software, free of charge. Owner notification letters were mailed October 25, 2022.
Electrical Vehicle recall #22V861000 · 2022 · 50,883 vehicles
What's wrong: Volkswagen group of america, Inc. (Audi) is recalling certain 2020-2022 Audi s7, s6 sedan, a6 allroad, 2021-2022 rs7, rs6 avant, 2019-2022 a7, and a6 sedan vehicles. Liquid spilled in the rear seat May penetrate and cause the gateway control module to shut down.
Why it matters: A gateway control module shutdown will suddenly reduce engine power, increasing the risk of a crash.
The fix: Dealers will install a protective cover, free of charge. Owner notification letters are expected to be mailed January 20, 2023.
Brakes (hydraulic) Vehicle recall #23V601000 · 2023 · 7,499 vehicles
What's wrong: Volkswagen group of america, Inc. (Audi) is recalling certain 2021 Audi s7, s6 sedan, rs7, rs6 avant, a6 allroad, 2019-2021 a7, and a6 sedan vehicles. An incorrectly labeled brake fluid cap May have been installed, which can result in the use of the wrong type of brake fluid.
Why it matters: Incorrect brake fluid can reduce braking ability and increase the risk of a crash.
The fix: Dealers will inspect the brake fluid reservoir cap and, if necessary, replace it, free of charge. Owner notification letters are expected to be mailed October 17, 2023.
Electrical, Electrical Vehicle recall #25V201000 · 2025 · 44,387 vehicles
What's wrong: Volkswagen group of america, Inc. (Audi) is recalling certain 2021 sq8, a6 sedan, a7, a8, q7, q8, rs6 avant, rs7, rsq8, s6 sedan, s7, s8, a6 allroad, and sq7 vehicles. Due to a software error, the instrument panel display May fail.
Why it matters: An instrument panel display that fails to show critical safety information, such as the speedometer or warning lights, increases the risk of a crash.
The fix: Dealers will update the instrument panel module software, free of charge. Owner notification letters were mailed April 24, 2025.
Backup camera Vehicle recall #25V900000 · 2025 · 356,894 vehicles
What's wrong: Volkswagen group of america, Inc. (Audi) is recalling certain 2019-2026 vehicles. Please see the recall report for a complete list of models. A software error May prevent the rearview camera image from displaying as intended. As such, these vehicles fail to comply with the requirements of Federal Motor Vehicle Safety Standard number 111, "rear visibility."
Why it matters: A rearview image that does not display reduces the driver's view behind the vehicle, increasing the risk of a crash.
The fix: Dealers will update the software, free of charge. Owner notification letters were mailed January 14, 2026.
Most-reported problems
Owner complaints filed with NHTSA, by component. One complaint can list several components. 0 mention a fire, 0 injuries and 0 deaths were reported.
What owners describe
- Electrical (11): the most common themes are electrical failure (7), stalls / loses power (3), door / lock issues (3).
- Engine (3): the most common themes are electrical failure (2).
- Other / unknown (2): no single recurring theme in the descriptions.
- Forward collision avoidance (2): no single recurring theme in the descriptions.
The 2021 Audi A6 has 17 owner complaints, ranking #25 of 33 A6 model years for complaints (well below the 50 average). Complaints peaked in 2026 (7 filed that year). The typical problem showed up when the car was about 4 years old, at a median of 59,000 miles. Neighboring years: 2020 (26 complaints, 9 recalls), 2022 (2 complaints, 5 recalls).
Engines & fuel economy (EPA)
| Engine | Transmission | Drive | City | Hwy | Comb. | Fuel |
|---|---|---|---|---|---|---|
| 2.0 L 4-cyl turbo hybrid | Automatic (AM-S7) | All-Wheel Drive | 23 | 31 | 26 | Premium |
| 3.0 L 6-cyl turbo hybrid | Automatic (AM-S7) | All-Wheel Drive | 22 | 29 | 24 | Premium |
Want the full repair deets? Get the factory manual.
Recall and complaint data tells you what goes wrong. A service manual tells you how to fix it: torque specs, wiring diagrams, fluid capacities and step-by-step procedures for the 2021 Audi A6.
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Most $25–$78, one-timePro-shop repair procedures, wiring diagrams and TSBs for your exact car.
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FAQ
Does the 2021 Audi A6 have any recalls?
Yes. NHTSA lists 11 vehicle recalls for the 2021 Audi A6. Recall repairs are free at any dealer, no matter how old the car is. Check your VIN at nhtsa.gov/recalls.
What are the most common 2021 Audi A6 problems?
Owners have filed 17 complaints with NHTSA. The most-reported areas are electrical (11), engine (3), other / unknown (2).
What gas mileage does the 2021 Audi A6 get?
EPA ratings run up to 26 mpg combined (2.0 L, Automatic (AM-S7)), across 2 engine and transmission combos.
Where can I get a 2021 Audi A6 repair manual?
eManualOnline sells downloadable manuals, Mitchell 1 DIY and ALLDATAdiy sell online access to factory repair data, and Haynes sells printed guides and online access. Pick a download if you want to keep it, or a subscription for wiring diagrams and TSBs.