2021 Audi A6
Only 18 complaints on file — too few for a fair verdict.
This verdict reflects complaint volume compared to this model's typical year. Recalls and safety issues below apply regardless of the verdict — always check them.
Only 18 complaints on file — too few for a fair verdict. The data below is complete but unranked.
- Complaints
- 18
- Recalls
- 11
- Investigations
- 0
- Top problem
- —
Too few to rank
Campaigns on file for 2021
None on file
Not enough data
Complaints per year
2021: 18 complaints
View as data table
| Year | Complaints |
|---|---|
| 1994 | 2 |
| 1995 | 16 |
| 1996 | 51 |
| 1997 | 20 |
| 1998 | 130 |
| 1999 | 217 |
| 2000 | 148 |
| 2001 | 113 |
| 2002 | 88 |
| 2003 | 66 |
| 2004 | 35 |
| 2005 | 91 |
| 2006 | 67 |
| 2007 | 53 |
| 2008 | 71 |
| 2009 | 21 |
| 2010 | 17 |
| 2011 | 21 |
| 2012 | 59 |
| 2013 | 52 |
| 2014 | 41 |
| 2015 | 22 |
| 2016 | 51 |
| 2017 | 20 |
| 2018 | 11 |
| 2019 | 114 |
| 2020 | 26 |
| 2021 | 18 |
| 2022 | 2 |
| 2023 | 2 |
| 2024 | 3 |
| 2025 | 5 |
| 2026 | 6 |
Known problem areas
Only 18 complaints on file for this model year — too few to rank by share. Raw counts only, below.
Electrical system
11 of 18 total reports mention: electrical system, most commonly citing starter assembly.
Show complaint excerpts
While operating the vehicle under normal driving conditions, the vehicle suffered an immediate, un-commanded loss of engine power and throttle response.
NHTSA ODI report, 2026-09-21
Also filed under Engine
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.
NHTSA ODI report, 2026-09-04
Car reported an engine restarter issue (with battery symbol) and recommended to contact the dealer. Car next shut down automatic restart system, and air conditioning stopped working.
NHTSA ODI report, 2023-09-09
Also filed under Engine and steering
Engine
3 of 18 total reports mention: engine.
Forward collision avoidance
3 of 18 total reports mention: forward collision avoidance, most commonly citing warnings and automatic emergency braking.
Power train
2 of 18 total reports mention: power train.
Structure
1 of 18 total reports mentions: structure, most commonly citing body.
Show complaint excerpts
Sunroof spontaneously shattered while driving. No other cars around when this occurred. Caused a very loud BANG. Was driving on the freeway when this occurred.
NHTSA ODI report, 2022-09-22
Safety timeline
11 recalls · 0 investigations · oldest first
To check one car, enter its VIN on the NHTSA recall page. Check a VIN →
-
R
2020-12-23Air bags, electrical system20V749000 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.
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.
-
R
2021-03-26Air bags21V159000 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.
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.
-
R
2021-06-04Suspension21V295000 Volkswagen Group of America, Inc.
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.
-
R
2021-08-27Seat belts21V606000 Volkswagen Group of America, Inc.
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.
-
R
2022-03-03Suspension, tires22V034000 Volkswagen Group of America, Inc.
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.
-
R
2022-10-25Back over prevention22V742000 Volkswagen Group of America, Inc.
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.
-
R
2023-01-19Electrical system22V861000 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.
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.
-
R
2023-02-17Electrical system22V155000 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.
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.
-
R
2023-09-25Service brakes, hydraulic23V601000 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.
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.
-
R
2025-04-24Electrical system25V201000 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.
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.
-
R
2026-01-14Back over prevention25V900000 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.
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.
Buy-smart checklist
2021 Audi A6 — pre-purchase inspection
Inspect
- Electrical system: 11 reports on file for this year.
- Engine: 3 reports on file for this year.
- Forward collision avoidance: 3 reports on file for this year.
Verify these recalls were completed
- Recall 20V749000 · Air bags, electrical system
- Recall 21V159000 · Air bags
- Recall 21V295000 · Suspension
- Recall 21V606000 · Seat belts
- Recall 22V034000 · Suspension, tires
- Recall 22V742000 · Back over prevention
- Recall 22V861000 · Electrical system
- Recall 22V155000 · Electrical system
- Recall 23V601000 · Service brakes, hydraulic
- Recall 25V201000 · Electrical system
- Recall 25V900000 · Back over prevention
Other years of this model
See all years ranked →FAQ
- Is the 2021 Audi A6 reliable?
- There isn't enough NHTSA complaint data on file yet to give this model year a verdict.
- What are the most common problems with the 2021 Audi A6?
- The most-reported component is electrical system, accounting for 61% of complaints on file.
- How many recalls does the 2021 Audi A6 have?
- 11 recalls on file for this model year.
Data updated 2026-11-01 · Complaints are unverified owner reports filed with NHTSA, not independently verified defects. Methodology.