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2021 Audi A6

Hybrid
Midsize Cars
3 EPA-rated configurations
Data refreshed 2026-09-11
F
Safety Signal
35 / 100 from the NHTSA recall record
RecallsNHTSA campaigns12
Complaintsowner reports to NHTSA25
Crash ratingNHTSA overall5★
Fuel economybest combined, EPA26 mpg
20262025202420232022202120202019201820172016

The 2021 Audi A6 is sold in the U.S. as a hybrid midsize car with 3 EPA-rated configurations. The most efficient version, the A6 quattro, is EPA-rated at 26 mpg combined. NHTSA lists 12 recall campaigns for this model year, which gives it a Safety Signal grade of F. Owners have filed 25 complaints, most often about the electrical system. NHTSA crash-tested it at 5 stars overall.

Specs & fuel economy

Source: EPA fueleconomy.gov
ConfigurationPowertrainDriveEngine / motorCityHwyCombAnnual fuel*
A6 quattroHybridAWD2.0L 4-cyl turbo + 48V Li-Ion233126$3,000
A6 quattroHybridAWD3.0L 6-cyl turbo + 48V Li-Ion222924$3,250
A6 AllroadHybridAWD3.0L 6-cyl turbo + 48V Li-Ion202622$3,500

*EPA estimate at 15,000 miles/year at EPA reference fuel and electricity prices. fueleconomy.gov record ids: 43175, 42774, 42791.

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Recalls (12)

Source: NHTSA recall database
○minor

Back Over Prevention

90TV
356,894 vehicles
ProblemVolkswagen 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."RiskA rearview image that does not display reduces the driver's view behind the vehicle, increasing the risk of a crash.FixDealers will update the software, free of charge. Owner notification letters were mailed January 14, 2026. Owners may contact Audi customer service at 1-800-253-2834. Audi's number for this recall is 90TV. Vehicle Identification Numbers (VINs) involved in this recall became searchable on NHTSA.gov on December 23, 2025.
NHTSA campaign 25V900000reported Dec 19, 2025Volkswagen Group of America, Inc.
▲high

Electrical System

90VC
44,387 vehicles
ProblemVolkswagen 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.RiskAn instrument panel display that fails to show critical safety information, such as the speedometer or warning lights, increases the risk of a crash.FixDealers will update the instrument panel module software, free of charge. Owner notification letters were mailed April 24, 2025. Owners may contact Audi customer service at 1-800-253-2834. Audi's number for this recall is 90VC.
NHTSA campaign 25V201000reported Mar 31, 2025Volkswagen Group of America, Inc.
▲high

Service Brakes, Hydraulic

47T9
7,499 vehicles
ProblemVolkswagen 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.RiskIncorrect brake fluid can reduce braking ability and increase the risk of a crash.FixDealers 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. Owners may contact Audi's customer service at 1-800-253-2834. Volkswagen's number for this recall is 47T9.
NHTSA campaign 23V601000reported Aug 25, 2023Volkswagen Group of America, Inc.
▲high

Electrical System

90V2
50,883 vehicles
ProblemVolkswagen 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.RiskA gateway control module shutdown will suddenly reduce engine power, increasing the risk of a crash.FixDealers will install a protective cover, free of charge. Owner notification letters are expected to be mailed January 20, 2023. Owners may contact Audi's customer service at 1-800-253-2834. Audi's number for this recall is 90V2.
NHTSA campaign 22V861000reported Nov 21, 2022Volkswagen Group of America, Inc.
▲high

Back Over Prevention

91Ei
6,076 vehicles
ProblemVolkswagen Group of America, Inc. (Audi) is recalling certain 2021-2022 AUDI A8, A6 Allroad, E-TRON Quattro, 2022 S3, RSQ8, RS7, RS6 Avant, Q8, Q7, Q3, E-TRON Sportback Quattro, S5 Cabriolet, E-TRON GT, S5 Sportback, A7, A6, A5 Sportback, A5 Cabriolet, A4, A4 Allroad, A3, S8, SQ7, SQ8, S6, and S4 vehicles. The infotainment main unit may become damaged internally when the vehicle is shut off, resulting in an inoperative rearview camera display the next time the vehicle is started. As such, these vehicles fail to comply with the requirements of Federal Motor Vehicle Safety Standard number 111, "Rear Visibility."RiskAn inoperative rearview camera display reduces the driver's rear visibility, increasing the risk of a crash.FixDealers will replace the infotainment main unit, free of charge. Owner notification letters were mailed June 6, 2022. Owners may contact Audi's customer service at 1-800-253-2834. Audi's number for this recall is 91Ei.
NHTSA campaign 22V806000reported Oct 26, 2022Volkswagen Group of America, Inc.
○minor

Back Over Prevention

91DZ
170,296 vehicles
ProblemVolkswagen 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."RiskA blank rearview camera display can reduce the driver's rear visibility, increasing the risk of a crash.FixDealers will update the infotainment unit software, free of charge. Owner notification letters were mailed October 25, 2022. Owners may contact Audi's customer service at 1-800-253-2834. Volkswagen's number for this recall is 91DZ.
NHTSA campaign 22V742000reported Oct 5, 2022Volkswagen Group of America, Inc.
▲high

Electrical System

20DN
47,238 vehicles
ProblemVolkswagen 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.RiskAn inaccurate fuel reading may cause an engine stall due to lack of fuel, increasing the risk of a crash.FixDealers will install a new sensor in the tank, free of charge. Owner notification letters were mailed February 17, 2023. Owners may contact Audi customer service at 1-800-253-2834. Audi's number for this recall is 20DN.
NHTSA campaign 22V155000reported Mar 14, 2022Volkswagen Group of America, Inc.
▲high

Suspension

42L5
31,058 vehicles
ProblemVolkswagen 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.RiskRear axle misalignment may cause premature or uneven tire wear, increasing the risk of a crash.FixDealers 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. Owners may contact Audi customer service at 1-800-253-2834. Audi's number for this recall is 42L5.
NHTSA campaign 22V034000reported Jan 26, 2022Volkswagen Group of America, Inc.
▲high

Seat Belts

69CR, 69CS
45,496 vehicles
ProblemVolkswagen 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 CrRiskAn unsecured child restraint system can increase the risk of injury during a crash.FixDealers will inspect, and replace as necessary, the middle-rear seat belt assemblies, free of charge. Owner notification letters were mailed August 27, 2021. Owners may contact Volkswagen customer service at 1-800-893-5298 and Audi customer service at 1-800-253-2834. Volkswagen's numbers for this recall are 69CR (VW) and 69CS (Audi).
NHTSA campaign 21V606000reported Aug 5, 2021Volkswagen Group of America, Inc.
▲high

Suspension

42L1
40,993 vehicles
ProblemVolkswagen 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.RiskA broken lock nut may misalign the rear axle, causing a loss of control and increasing the risk of a crash.FixDealers 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.
NHTSA campaign 21V295000reported Apr 26, 2021Volkswagen Group of America, Inc.
▲high

Air Bags

70i2
3,421 vehicles
ProblemVolkswagen 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.RiskAn 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.FixAudi 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. Owners may contact Audi customer service at 1-800-253-2834. Audi's number for this recall is 70i2.
NHTSA campaign 21V159000reported Mar 10, 2021Volkswagen Group of America, Inc.
▲high

Electrical System

69BM
166 vehicles
ProblemVolkswagen 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.RiskA 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.FixAudi 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. Owners may contact Audi customer service at 1-800-253-2834. Audi's number for this recall is 69BM.
NHTSA campaign 20V749000reported Dec 2, 2020Volkswagen Group of America, Inc.

Owner complaints

Source: NHTSA complaint database
25complaints filed

0 involved a crash · 0 a fire · 0 injuries · 0 deaths reported

Filed per year: 2021: 1 · 2022: 5 · 2023: 6 · 2024: 1 · 2025: 5 · 2026: 7

Most-cited components

Electrical System14
Forward Collision Avoidance6
Power Train3
Engine3
Fuel/Propulsion System2
Structure2

What owners describe

“The vehicle went in for a software update. After purchasing the vehicle, the software update was part of a recall. Since that recall was performed, my vehicle has a lot of electronic glitches and a lot of issues. My external Morty just got done, paying $4500 to track down a central locking issue on top of the electroni…”Sep 4, 2026 · Electrical System · NHTSA owner report
“The contact owns a 2021 Audi A6. The contact stated while driving at an undisclosed speed, the vehicle overheated. The engine overheating and the low coolant warning light illuminated. In addition, the engine seized. The vehicle was taken to the dealer where it was diagnosed with a coolant leak and a failed coolant pum…”May 11, 2026 · Engine And Engine Cooling · NHTSA owner report
“Thermostat housing and oil cooler bracket leaking coolant with only 56k miles on the car”May 10, 2026 · Engine · NHTSA owner report

Complaint counts are raw owner reports to NHTSA, not verified defects, and scale with how many were sold. Use them to spot patterns, not to rank.

Crash ratings

Source: NHTSA NCAP
ConfigurationOverallFrontalSideRolloverRollover risk
4 DR AWD★★★★★★★★★☆★★★★★★★★★★9%
SW AWD★★★★★★★★★☆★★★★★★★★★★9%

NHTSA New Car Assessment Program. Standard driver-assist: forward collision warning, lane departure warning.

Other A6 model years

A

2026 Audi A6

1 recalls · 8 complaints

B

2025 Audi A6

2 recalls · 6 complaints

A

2024 Audi A6

1 recalls · 1 complaints

A

2023 Audi A6

1 recalls · 3 complaints

D

2022 Audi A6

5 recalls · 4 complaints

F

2020 Audi A6

9 recalls · 33 complaints

F

2019 Audi A6

7 recalls · 114 complaints

C

2018 Audi A6

2 recalls · 11 complaints

D

2017 Audi A6

3 recalls · 20 complaints

D

2016 Audi A6

3 recalls · 51 complaints

Sources & method

Safety Signal starts every model-year at 100 and subtracts points per open NHTSA recall campaign by severity: critical 15 (fire risk, park-outside or do-not-drive advisories), high 8 (brakes, steering, airbags, loss of drive power, structure, battery), moderate 6, minor 3 (software, labels, lighting fixed by an update). Floor 35. A ≥ 90, B ≥ 80, C ≥ 70, D ≥ 60, otherwise F. Complaint counts and NHTSA crash ratings are shown separately and are not blended into the grade.

EPA figures come from fueleconomy.gov vehicle records. Recalls, complaints, investigations and crash ratings come from NHTSA's public flat files, refreshed weekly.

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