2021 Audi A6 Electrical system Problems
- Complaints
- 11about this part
- Share
- 61%of 18 total for the year
- Median mileage
- 38,000miles
- Trend
- Not enough dataFewer than 15 complaints, too few for a reliable trend.
NHTSA recorded 11 complaints about the electrical system of the 2021 Audi A6, 61% of the 18 complaints for this model year. Where a mileage was given, the median is 38,000 miles. 3 recall campaigns on record are filed under a similar system.
Fewer than 15 complaints name this part, so treat the figures as a rough indication only.
Example complaints
Selected from NHTSA records; personal details are removed. They are consumer reports, not findings.
“My alternator was not working and it was a recall and I paid to fix it and they don’t wanna pay me back. I got a new part from audi and fix it at the shop and they don’t wanna pay anything just called and she said we don’t pay only if he’s done at the dealer. And I don’t believe that! Bc dealer told me they pay if I fix it any where to get done quick bc was out stock”
NHTSA complaint #11720235, filed 2026-02“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 electronic issues. Did not fix the issue. I am out of town going to see family in California. The vehicle central locking air came back up. I could not get out of the vehicle lock and unlock went out work. …”
NHTSA complaint #11762289, filed 2026-09“Vehicle had electrical system malfunction. Vehicle provided an electrical system malfunction and vehicle starting system malfunction warning message a few days prior to the incident. Vehicle has approximately 20.5K miles on odometer. Before I was able to bring it to service, the electrical system malfunction message became more severe and turned from yellow to red. While driving, the vehicle progressively shut down ABS, lane departure, and other systems and gave a transmission warning message. Eventually, the car lost power and I was left stranded at the side of the road.”
NHTSA complaint #11596019, filed 2024-06“Multiple warnings indicating to contact dealer (Lane departure, adaptive cruise control, collision avoidance, electrical system, start/stop, etc) then 1 minute later transmission failure and engine failure imminent. After a minute or two my center MMI went blank then my electronic dash went blank, transmission went into neutral and the engine died all within a few seconds. Fortunately I was able to coast to a stop in the center median of an expressway and contacted the dealer. Flatbed towed to dealer who stated most likely the generator between the lithium battery bank and gas engine failed. …”
NHTSA complaint #11502114, filed 2023-01“While operating the vehicle under normal driving conditions, the vehicle suffered an immediate, un-commanded loss of engine power and throttle response. The vehicle displayed a critical dashboard restriction stating: “Maximum engine speed 2500 RPM”, forcing an emergency limp-home mode that instantly created a roadway collision hazard. …”
NHTSA complaint #11765960, filed 2026-09Related recalls
- 25V201000Mar 31, 2025Volkswagen 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…Covers: Audi A6 2021, Q8 2021, A6 Allroad 2021 +11 more
- 22V861000Nov 21, 2022Volkswagen 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…Covers: Audi A6 2019–2022, A7 2019–2022, A6 Allroad 2020–2022 +4 more
- 22V155000Mar 14, 2022Volkswagen 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…Covers: Audi A6 2019–2022, A7 2019–2022, S6 2020–2022 +4 more
Related service bulletins
- 11038127Sep 23, 2026This bulletin provides information when there is a warning message in the instrument cluster about external sound.
- 11038046Sep 23, 2026This bulletin provides information regarding driver assist systems; Audi adaptive light, Audi pre sense system fault, adaptive cruise assist inop (DTC C12D5FA).
- 11038030Sep 23, 2026This bulletin provides information when DTC C12BFF0 is stored in the lane change modeul or the radar sensor; intersection assist/lane change assist are inoperable.
- 11038032Sep 18, 2026This bulletin provides information when the rear parking sensor sometimes does not work, rear parking sensor loose, rear parking sensor fault message.
- 11038040Sep 15, 2026This bulletin provides general information about SOS Emergency Assist.
- 11038029Sep 15, 2026This bulletin provides information when there is an Audi pressense warning, warning jolt, and/or brake engagement.
- 11038028Sep 15, 2026This bulletin provides information when there is an Audi adaptive light system malfunction; DTC C12B3FA is stored in the control module for driver assistance systems.
- 11038061Sep 2, 2026This bulletin provides information regarding fault finding and repair information for electric tailgate.
- 11036973Aug 27, 2026This bulletin provides general information about the current tpp issues for Audi connect.
- 11036910Aug 26, 2026This bulletin provides informaitn when there is a warning messsage; "Instrument cluster: fault. Limited warning messages. Please contact workshop"; DTC B200096.
Electrical system: other model years
| Year | Complaints | Share of year |
|---|---|---|
| 2026 | 5 | 71% |
| 2025 | 2 | 33% |
| 2021 | 11 | 61% |
| 2020 | 18 | 69% |
| 2019 | 84 | 74% |
| 2018 | 1 | 9% |
| 2017 | 2 | 10% |
| 2016 | 8 | 16% |
| 2015 | 3 | 14% |
| 2014 | 2 | 5% |
| 2013 | 7 | 13% |
| 2012 | 13 | 22% |
| 2011 | 3 | 14% |
| 2010 | 2 | 12% |
| 2009 | 1 | 5% |
| 2008 | 7 | 10% |
| 2007 | 6 | 11% |
| 2006 | 13 | 19% |
| 2005 | 16 | 18% |
| 2004 | 3 | 9% |
| 2003 | 14 | 21% |
| 2002 | 15 | 17% |
| 2001 | 14 | 12% |
| 2000 | 36 | 24% |
| 1999 | 37 | 17% |
| 1998 | 8 | 6% |
| 1997 | 14 | 70% |
| 1996 | 38 | 75% |
| 1995 | 10 | 63% |
Other parts of the 2021 Audi A6
3 complaintsForward collision avoidance
2 complaintsOther or unknown
2 complaintsTransmission and drivetrain
2 complaintsEngine cooling
1 complaintsExterior lighting
1 complaintsFuel system
1 complaintsSteering
1 complaintsBody and structure
1 complaints
← All problems reported for the 2021 Audi A6
About this data. Data from NHTSA (ODI) complaints, recalls, TSBs and investigations, updated Oct 27, 2026. Complaints are unverified consumer reports and may be duplicated or inaccurate.
To check a specific vehicle for open recalls, use its VIN at nhtsa.gov/recalls. Methodology