2021 Audi A6 problems and complaints
Owners have filed 18 complaints with NHTSA about the 2021 Audi A6. The most-reported areas: Electrical System (11), Engine (3), Unknown Or Other (2).
Key takeaways
- 18 owner complaints on file with NHTSA.
- 0 involve a crash, 0 a fire, 0 reported injuries.
- Complaints are unverified owner reports; recalls are confirmed defects.
| Component | Complaints | Share |
|---|---|---|
| Electrical System | 11 | 61% |
| Engine | 3 | 17% |
| Unknown Or Other | 2 | 11% |
| Power Train | 2 | 11% |
| Forward Collision Avoidance | 2 | 11% |
| Exterior Lighting | 1 | 6% |
| Fuel/Propulsion System | 1 | 6% |
| Engine And Engine Cooling | 1 | 6% |
| Steering | 1 | 6% |
| Structure | 1 | 6% |
One complaint can name several components, so shares add up to more than 100%.
Parts for the 2021 Audi A6
GarageDex's verified specs for this car. Each Buy button searches Amazon for that exact part.
- Battery
- Engine oil
- Wiper blades
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| Version | Overall | Front | Side | Rollover |
|---|---|---|---|---|
| 2021 Audi A6 4 DR AWD | 5/5 | 4/5 | 5/5 | 5/5 |
Latest complaints, as filed
Owner-written and unverified by NHTSA.
Exterior Lighting - filed 2026-10-19
Both daytime running lights have progressively changed from white to yellow and lost intensity. The discoloration began on one side and later appeared on the other, concentrated at the lower angled section of the daytime running light. There are no warning lamps, messages, or stored fault codes. Independent automotive ...
Electrical System,engine,fuel/Propulsion System - filed 2026-09-21
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 c...
Electrical System - filed 2026-09-04
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...
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More for the 2021 Audi A6
Complaints are reports filed by owners with the National Highway Traffic Safety Administration. NHTSA publishes them without verifying them, and counts rise with how many cars were sold, so compare years of the same model rather than different models. Crash ratings are NHTSA's own 5-Star Safety Ratings results.