2021 Audi A6 problems and owner complaints
Explore the records behind recurring owner reports.
Key facts
16 owner complaints analyzed
11 distinct recall campaigns
59,000 mi median reported failure mileage
Scope: 2021 model year. Data snapshot: . 2 complaints include usable failure mileage.
Most common problems
Electrical System is the most frequently named component, appearing in 9 of 16 complaints (56.3%). A complaint can name multiple components.
| Topic | Matching reports | Share of complaints |
|---|---|---|
| Electrical and battery issues | 6 | 37.5% |
| Transmission and shifting | 4 | 25.0% |
| Engine operation | 2 | 12.5% |
| Braking behavior | 2 | 12.5% |
| Steering behavior | 1 | 6.3% |
Topic matches use published keyword rules. They describe mentions, including negations or comparisons, and do not confirm a diagnosis. Read the matching rules.
Component breakdown
Number of unique complaints naming each component. Top eight shown.
| Category | Count |
|---|---|
| Electrical System | 9 |
| Engine | 2 |
| Forward Collision Avoidance: Warnings | 2 |
| Power Train | 2 |
| Unknown Or Other | 2 |
| Electrical System:Starter Assembly | 1 |
| Engine And Engine Cooling | 1 |
| Forward Collision Avoidance: Automatic Emergency Braking | 1 |
Electrical System: 9; Engine: 2; Forward Collision Avoidance: Warnings: 2; Power Train: 2; Unknown Or Other: 2; Electrical System:Starter Assembly: 1; Engine And Engine Cooling: 1; Forward Collision Avoidance: Automatic Emergency Braking: 1
Reported problems by failure mileage
Complaint counts in mileage bands. These are not failure rates per vehicle or mile.
| Category | Count |
|---|---|
| Under 25,000 | 0 |
| 25,000 to 49,999 | 1 |
| 50,000 to 74,999 | 0 |
| 75,000 to 99,999 | 1 |
| 100,000 to 149,999 | 0 |
| 150,000 and above | 0 |
Under 25,000: 0; 25,000 to 49,999: 1; 50,000 to 74,999: 0; 75,000 to 99,999: 1; 100,000 to 149,999: 0; 150,000 and above: 0
25,000 to 49,999 miles has the most reports with usable mileage (1). 14 complaints have missing, zero or invalid mileage.
Complaints over time
Year the complaint was filed, not the vehicle model year or incident year. The snapshot year is partial.
| Category | Count |
|---|---|
| 2022 | 2 |
| 2023 | 4 |
| 2024 | 1 |
| 2025 | 3 |
| 2026 | 6 |
2022: 2; 2023: 4; 2024: 1; 2025: 3; 2026: 6
Pattern summary
Electrical System leads the component reports. Electrical and battery issues appears in 6 complaint narratives. Transmission and shifting appears in 4 complaint narratives. Engine operation appears in 2 complaint narratives. Use these patterns to inspect individual reports and prepare questions for a mechanic.
Calculated from recorded counts. An AI narrative has not been published for this selection.
Complaint evidence
Examples provide context, not a representative sample or a verified diagnosis.
Owner report 11502114 · 2023-01-17 (January 17, 2023)
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…
Owner-reported narrative. Look up ODI 11502114 at NHTSA ↗
Owner report 11505775 · 2023-02-06 (February 6, 2023)
The contact's wife owns a 2021 Audi A6. The contact received notification of NHTSA Campaign Number: 22V155000 (Electrical System) however, the part to do the recall repair was unavailable. The contact stated that the manufacturer had exceeded a reasonable amount of time for the recall repair. The manufacturer was contacted and was unable to confirm when parts would become available. The contact had not experienced a failure. VIN tool confirms parts not available.
Owner-reported narrative. Look up ODI 11505775 at NHTSA ↗
Owner report 11543607 · 2023-09-09 (September 9, 2023)
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. Within a short period of time (same day), the car listed a red battery symbol and advised to stop the car. After doing so and contacting the Audi roadside, the car was listing a series of issues on multiple symptoms while also saying in the warning message "still okay to drive". These systems included steering, braking, and what seemed to be other sensors the car p…
Owner-reported narrative. Look up ODI 11543607 at NHTSA ↗
Owner report 11525465 · 2023-06-05 (June 5, 2023)
The contact owns a 2021 Audi A6. The contact stated while his father was driving 45 MPH, the electrical system Malfunction warning light illuminated. The contact stated that several electronic components started to turn off until the vehicle stalled. The vehicle was not drivable. The contact towed the vehicle to the local dealer, where it was diagnosed with needing the starter generator to be replaced. The vehicle was not repaired due to the parts being on backorder. The manufacturer had been informed of the failure. The failure mileage was app…
Owner-reported narrative. 38,000 miles reported. Look up ODI 11525465 at NHTSA ↗
Owner report 11730290 · 2026-04-09 (April 9, 2026)
I was driving my vehicle when the engine surged and then a transmission warning light came on and there was an immediate and complete loss of drive power. After the vehicle glided to a stop, there was no drive transmission in either forward or reverse. There was no pre-warning and no earlier incidence that led up to this issue. The vehicle is five years old with 39,834 miles and has had all routine maintenance and mileage interval services performed at the dealership, including its recent (Dec-25) 40,000-mile service. Thankfully this complet…
Owner-reported narrative. Look up ODI 11730290 at NHTSA ↗
Owner report 11596019 · 2024-06-23 (June 23, 2024)
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 stran…
Owner-reported narrative. Look up ODI 11596019 at NHTSA ↗