Recalls
11campaigns
3 electrical · 2 rear camera · 2 air bag
Source: NHTSA
Complaints
17filed
Owner reports, 2017–2026 shown
Source: NHTSA ODI
Crash tests
5★overall
★★★★★ Frontal 4★ · Side 5★ · Rollover 5★
Source: NHTSA NCAP
Fuel economy
26mpg combined
$2,512/yr at this week's prices
Source: EPA · EIA
Specs
2 L 4-cyl· Automatic
3 engine and transmission configurations
Source: NHTSA vPIC
Recalls (11)
NHTSA lists 11 recall campaigns for the 2021 Audi A6. Check whether yours was repaired with NHTSA's free VIN lookup ↗
Only NHTSA and your automaker know whether your specific car was repaired. PlainVIN shows every recall campaign listed for a model year, with the official text and how many cars have been fixed so far.
Check on NHTSA ↗Listed for 2021 Audi A6. Not checked against your VIN.
Rearview Camera Image May Not Display/FMVSS 111
Back over prevention · sensing system · camera
Official NHTSA text
- Summary
- 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."
- Consequence
- A rearview image that does not display reduces the driver's view behind the vehicle, increasing the risk of a crash.
- Remedy
- Dealers 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.
58.2% repairedof 356,894 vehicles
Manufacturer report to NHTSA · Source: US DOT recall completion data, retrieved Oct 6, 2026
Check your VIN on NHTSA
or ask a dealer to check campaign 25V900000
Listed for 2021 Audi A6. Not checked against your VIN.
Instrument Panel Display Failure
Electrical system · instrument cluster/panel
Official NHTSA text
- Summary
- 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.
- Consequence
- An instrument panel display that fails to show critical safety information, such as the speedometer or warning lights, increases the risk of a crash.
- Remedy
- Dealers 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.
82.1% repairedof 44,387 vehicles
Manufacturer report to NHTSA · Source: US DOT recall completion data, retrieved Oct 6, 2026
Check your VIN on NHTSA
or ask a dealer to check campaign 25V201000
Listed for 2021 Audi A6. Not checked against your VIN.
Incorrect Brake Fluid Cap
Service brakes, hydraulic · fluid
Official NHTSA text
- Summary
- 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.
- Consequence
- Incorrect brake fluid can reduce braking ability and increase the risk of a crash.
- Remedy
- 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. Owners may contact Audi's customer service at 1-800-253-2834. Volkswagen's number for this recall is 47T9.
94.6% repairedof 7,499 vehicles
Manufacturer report to NHTSA · Source: US DOT recall completion data, retrieved Oct 6, 2026
Check your VIN on NHTSA
or ask a dealer to check campaign 23V601000
Listed for 2021 Audi A6. Not checked against your VIN.
Control Module Shutdown Can Reduce Engine Power
Electrical system
Official NHTSA text
- Summary
- 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.
- Consequence
- A gateway control module shutdown will suddenly reduce engine power, increasing the risk of a crash.
- Remedy
- Dealers 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.
96% repairedof 50,883 vehicles
Manufacturer report to NHTSA · Source: US DOT recall completion data, retrieved Oct 6, 2026
Check your VIN on NHTSA
or ask a dealer to check campaign 22V861000
Listed for 2021 Audi A6. Not checked against your VIN.
Rearview Display Inoperative/FMVSS 111
Back over prevention · display function
Official NHTSA text
- Summary
- 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."
- Consequence
- A blank rearview camera display can reduce the driver's rear visibility, increasing the risk of a crash.
- Remedy
- Dealers 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.
95.2% repairedof 170,296 vehicles
Manufacturer report to NHTSA · Source: US DOT recall completion data, retrieved Oct 6, 2026
Check your VIN on NHTSA
or ask a dealer to check campaign 22V742000
Listed for 2021 Audi A6. Not checked against your VIN.
Fuel Gauge May Display Inaccurate Fuel Reading
Electrical system · instrument panel · fuel gauge · fuel level float/sensor/sending unit
Official NHTSA text
- Summary
- 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.
- Consequence
- An inaccurate fuel reading may cause an engine stall due to lack of fuel, increasing the risk of a crash.
- Remedy
- Dealers 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.
95.7% repairedof 47,238 vehicles
Manufacturer report to NHTSA · Source: US DOT recall completion data, retrieved Oct 6, 2026
Check your VIN on NHTSA
or ask a dealer to check campaign 22V155000
Listed for 2021 Audi A6. Not checked against your VIN.
Rear Axle May Be Misaligned
Suspension · rear · axle · non-powered axle assembly
Official NHTSA text
- Summary
- 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.
- Consequence
- Rear axle misalignment may cause premature or uneven tire wear, increasing the risk of a crash.
- Remedy
- 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. Owners may contact Audi customer service at 1-800-253-2834. Audi's number for this recall is 42L5.
98.5% repairedof 31,058 vehicles
Manufacturer report to NHTSA · Source: US DOT recall completion data, retrieved Oct 6, 2026
Check your VIN on NHTSA
or ask a dealer to check campaign 22V034000
Listed for 2021 Audi A6. Not checked against your VIN.
Seat Belt Locking Retractor Malfunction/FMVSS 208
Seat belts
Official NHTSA text
- Summary
- 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."
- Consequence
- An unsecured child restraint system can increase the risk of injury during a crash.
- Remedy
- Dealers 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).
98.5% repairedof 45,496 vehicles
Manufacturer report to NHTSA · Source: US DOT recall completion data, retrieved Oct 6, 2026
Check your VIN on NHTSA
or ask a dealer to check campaign 21V606000
Listed for 2021 Audi A6. Not checked against your VIN.
Rear Axle Lock Nuts May Break
Suspension · rear · axle · non-powered axle assembly
Official NHTSA text
- 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.
- Consequence
- A broken lock nut may misalign the rear axle, causing a loss of control and increasing the risk of a crash.
- Remedy
- 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.
98.7% repairedof 40,993 vehicles
Manufacturer report to NHTSA · Source: US DOT recall completion data, retrieved Oct 6, 2026
Check your VIN on NHTSA
or ask a dealer to check campaign 21V295000
Listed for 2021 Audi A6. Not checked against your VIN.
Passenger Air Bag May Deploy Incorrectly
Air bags
Official NHTSA text
- Summary
- 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.
- Consequence
- 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.
- Remedy
- 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. Owners may contact Audi customer service at 1-800-253-2834. Audi's number for this recall is 70i2.
97.4% repairedof 3,421 vehicles
Manufacturer report to NHTSA · Source: US DOT recall completion data, retrieved Oct 6, 2026
Check your VIN on NHTSA
or ask a dealer to check campaign 21V159000
Listed for 2021 Audi A6. Not checked against your VIN.
Faulty Side Impact Crash Sensor In Front Doors
Air bags · sensor · side impact
Official NHTSA text
- Summary
- 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.
- Consequence
- 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.
- Remedy
- 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. Owners may contact Audi customer service at 1-800-253-2834. Audi's number for this recall is 69BM.
99.4% repairedof 166 vehicles
Manufacturer report to NHTSA · Source: US DOT recall completion data, retrieved Oct 6, 2026
Check your VIN on NHTSA
or ask a dealer to check campaign 20V749000
PlainVIN shows public government records for education. It isn't a vehicle inspection or legal advice. Check your own VIN with NHTSA or your dealer.
Owner complaints (17)
17 complaints filed with NHTSA (owner reports, not verified findings). The electrical system is mentioned most often.
0involved a crash
0involved a fire
0injuries reported
0deaths reported
As reported by owners in their complaints. These are reports, not NHTSA findings.
Most-reported components
| Component | Complaints | % of 17 |
|---|---|---|
| Electrical system | 11 | 64.7% |
| Engine | 3 | 17.6% |
| Forward collision avoidance | 2 | 11.8% |
| Power train | 2 | 11.8% |
| Unknown or other | 2 | 11.8% |
| Engine and engine cooling | 1 | 5.9% |
| Fuel/propulsion system | 1 | 5.9% |
| Steering | 1 | 5.9% |
| Structure | 1 | 5.9% |
How 2021 compares with other A6 years
Best and worst A6 years →201720
201811
2019114
202025
202117
20222
20232
20243
20256
20266
| Model year | Complaints | Recall campaigns |
|---|---|---|
| 2017 | 20 | 3 |
| 2018 | 11 | 2 |
| 2019 | 114 | 7 |
| 2020 | 25 | 9 |
| 2021 | 17 | 11 |
| 2022 | 2 | 5 |
| 2023 | 2 | 1 |
| 2024 | 3 | 1 |
| 2025 | 6 | 2 |
| 2026 | 6 | 0 |
This year (2021)Other yearsStill collecting reports
Counts are owner reports, not failure rates. Higher sales years tend to draw more reports. Owners are still filing reports for recent model years, so these counts will grow. Source: NHTSA ODI, retrieved Oct 6, 2026.
Crash tests: 5 stars overall
Overall★★★★★
Frontal crashDriver 5★ · Passenger 4★★★★★☆
Side crashDriver 5★ · Passenger 5★★★★★★
Side pole★★★★★
RolloverRollover risk 8.9%★★★★★
Compare fairly. Compare stars only between vehicles of similar size and weight. Ratings apply to the tested configuration.
Source: NHTSA 5-Star Safety Ratings (NCAP), 2021 Audi A6 4 dr awd, retrieved Oct 6, 2026.
Fuel economy: up to 26 mpg combined
26
mpg combined
23
city
31
highway
- EPA annual fuel cost
- $3,150
- CO₂ tailpipe
- 341 g/mi
- EPA class
- Midsize Cars
What it costs you to run
$2,512per year
$209per month
577gallons a year
Miles ÷ 26 mpg × $4.354 (EIA US average regular, week of Oct 5, 2026, all taxes included). Source: EPA · EIA.
EPA label estimates from lab tests; your mileage will vary.
Specs by configuration
| Engine · transmission | Drive | City / Hwy / Comb | EPA $/yr | CO₂ g/mi |
|---|---|---|---|---|
| 2 L 4-cyl · Automatic | All-Wheel Drive | 23 / 31 / 26 | $3,150 | 341 |
| 3 L 6-cyl · Automatic | All-Wheel Drive | 22 / 29 / 24 | $3,400 | 364 |
| 3 L 6-cyl · Automatic | All-Wheel Drive | 20 / 26 / 22 | $3,750 | 398 |
Source: EPA fuel economy data, retrieved Oct 6, 2026. Configurations are listed when EPA and NHTSA records match.
Looking at a 2021 A6 for sale?
Print a one-page buyer's checklist: each recall campaign with a box to tick when the seller shows proof of repair, the top complaint areas to inspect, crash stars, MPG, and a link back to this page.
Where to next
2021 Audi A6 FAQ
How many recalls does the 2021 Audi A6 have?
NHTSA lists 11 recall campaigns: 25V900000 (rear camera), 25V201000 (electrical), 23V601000 (brake), 22V861000 (electrical), 22V742000 (rear camera), 22V155000 (electrical), 22V034000 (tire), 21V606000 (seat belt), 21V295000 (suspension), 21V159000 (air bag), 20V749000 (air bag). Use NHTSA's VIN lookup to see whether a specific car was repaired.
What are the most common 2021 Audi A6 problems?
Owners filed 17 complaints with NHTSA. Electrical system (11), Engine (3), Forward collision avoidance (2) are mentioned most. These are owner reports, not verified findings.
What mpg does the 2021 Audi A6 get?
EPA rates the 2 L 4-cyl · Automatic version at 23 city, 31 highway and 26 combined mpg. Other configurations are listed in the fuel economy section.
What safety rating did the 2021 Audi A6 get?
NHTSA rated the 2021 Audi A6 4 dr awd 5 stars overall, with 4 stars frontal, 5 stars side and 5 stars rollover (8.9% rollover risk).
How does the 2021 A6 compare with other years?
Among the 2017–2021 Audi A6 model years at least five years old, the 2018 drew the fewest complaints (11) and the 2019 the most (114). The 2021 drew 17. Counts are owner reports, not failure rates.
How this page was madeSources, processing, limits, review and changes
Data sources
- NHTSA recalls by vehicle
Retrieved Oct 6, 2026 - US DOT recall completion rates (data.transportation.gov)
Retrieved Oct 6, 2026 - NHTSA ODI owner complaints
Retrieved Oct 6, 2026 - NHTSA NCAP 5-Star Safety Ratings
Retrieved Oct 6, 2026 - EPA fuel economy data (licence confirmation pending)
Retrieved Oct 6, 2026 - EIA weekly retail gasoline prices
Weekly, all taxes included
Processing
- Complaints are counted per component. One complaint can list several, so component totals add up to more than the total.
- Fuel cost = miles per year ÷ EPA combined mpg × EIA weekly price for your region.
Limitations
- Complaint counts are owner reports, not verified findings or failure rates. There is no sales denominator.
- Recall campaigns are listed for the model year. Only NHTSA and the automaker know whether a specific car was repaired.
- Recent model years are still collecting reports.
Review
Data compiled automatically from the official files listed here.
Changelog
- 2026-10-06 Data refreshed from the official files.
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