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Light NHTSA footprint — 15 owner complaints and 11 active recall campaigns. Either a clean record or thin data; we'll show what's there.
The 2021 Audi A6 has 15 NHTSA owner complaints and 11 recalls on file (U.S. federal records, as of August 2026). The most-reported system is electrical at 7 complaints, typically surfacing around 38,000 miles (~$850 to repair). Source: NHTSA Office of Defects Investigation.
| Model year | Owner complaints | Recalls |
|---|---|---|
| 2018 A6 | 2 | 2 |
| 2019 A6 | 114 | 7 |
| 2020 A6 | 24 | 9 |
| 2021 A6 (this page) | 15 | 11 |
| 2022 A6 | 0 | 5 |
| 2023 A6 | 2 | 1 |
| 2024 A6 | 0 | 1 |
Average for the segment. Some recurring trouble spots worth knowing about.
Worth owning if you verify the specific issues below before you buy.
Our read of the federal NHTSA complaint and recall record for this exact year and model — not a substitute for a pre-purchase inspection. How we score.
Driver-assist features on the tested model: Electronic stability control: Standard · Forward collision warning: Standard · Lane departure warning: Standard
Source: NHTSA New Car Assessment Program — tested configuration: 2021 Audi A6 4 DR AWD. Stars rate crash protection in NHTSA's tests, not overall reliability — see the owner-complaint data below for what actually goes wrong.
Here's what this model is known to do — so you can inspect for it, price it in, or make the seller fix it before you sign.
Run the VIN from the listing — 11 active recalls on this model. Recall repairs are always free.
Verdict for buyers: 6.4/10 model. The priciest documented failure is electrical (~$850) — get the seller's service records for it or inspect closely. Otherwise an average-risk used buy at a fair price.
We tell you what this model is known for and what to inspect — a vehicle-history report tells you what this exact car has been through. Smart buyers get both.
See the full pre-purchase inspection checklist →A noise, a warning light, a repair quote, "should I buy this?" — get an answer grounded in this vehicle's actual NHTSA record, not generic advice.
Answers use this vehicle's NHTSA complaint & recall record — owner-reported and unverified, not a diagnosis. Verify anything safety-critical with a mechanic.
While driving at normal speed, the entire digital instrument panel suddenly went black and a red warning triangle appeared. I lost all gauges, including speedometer, fuel level, and warning indicators. This created a serious safety risk because I was in active traffic and had no…
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. Dealer would not confirm issue was spontaneous - felt something must have hit the car to cause this. No defined…
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…
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…
Drag to your current mileage. Numbers are derived from this vehicle's complaint history.
A rearview image that does not display reduces the driver's view behind the vehicle, increasing the risk of a crash.
An instrument panel display that fails to show critical safety information, such as the speedometer or warning lights, increases the risk of a crash.
Incorrect brake fluid can reduce braking ability and increase the risk of a crash.
It's got known weak points. With a reliability score of 6.4 out of 10 based on 15 owner complaints filed with NHTSA, the 2021 Audi A6 has a higher-than-average rate of reported issues. The areas to watch are listed above. Whether it's worth owning depends on price, condition, and how much repair exposure you can absorb.
The 2021 Audi A6 is acceptable, with specific caveats. Worth owning if you verify the specific issues below before you buy. The record behind that call: Reliability score 6.4/10 — around the segment average; 11 recall campaigns on file. This is our read of the federal complaint and recall data — not a substitute for a pre-purchase inspection.
Inspect the electrical first — it's the most-reported issue on this model, with 7 owner complaints filed. Typical failure occurs around 38,000 miles. Average repair cost runs about $850 at an independent shop. Also confirm any open recalls have been completed by running the VIN, and ask for service records covering the problem areas listed above.
It scores 6.4 out of 10 on our NHTSA-based read of 15 owner complaints. The main thing to watch is electrical. Typical failure occurs around 38,000 miles. Priced fairly and clean on inspection, it's a reasonable used buy. Our data covers what this model is known for — pair it with a vehicle-history report on the VIN to see what that specific car has been through.
Based on NHTSA records, the most-reported issue is electrical, with 7 complaints filed. Typical failure occurs around 38,000 miles. Average repair cost runs about $850 at an independent shop.
The electrical is one of the costlier repair items. Average repair cost runs about $850 at an independent shop. Typical failure occurs around 38,000 miles. Catching early warning signs can sometimes extend life by 20–30,000 miles.
Paste your VIN into the decoder at the top of this page. We pull live from NHTSA, so you'll see exactly which campaigns apply to your vehicle and whether the dealer has logged the fix. Recall repairs are always free regardless of mileage or warranty status.
Math is straightforward: a quality service contract runs $1,800–3,500 over 3 years. With 15 complaints on file and the costliest repair averaging $850, one major failure more than pays for it. The catch is reading the contract — many providers exclude wear items and require pre-authorization, so cheaper plans are not always better value.