2021 Audi Q3: common problems
Owners of the 2021 Audi Q3 filed 15 complaints with NHTSA, most often about fuel/propulsion system and electrical system. The maker issued 853 service bulletins for this year. Details by component below, with sources.
Key figures
- Owner complaints
- 15
- involving a crash
- 2
- Technical service bulletins (TSB)
- 853

What fails most often
- 1 Fuel/propulsion system 27% of all complaints
- 2 Electrical system 20% of all complaints
- 3 Engine 20% of all complaints
- 4 Seat belts 13% of all complaints
- 5 Structure 7% of all complaints
- 6 Steering 7% of all complaints
- 7 Exterior lighting 7% of all complaints
- 8 Fuel system 7% of all complaints
- Fuel/propulsion system: 4 complaints (27% of all); manufacturer bulletins for this component: 10.
- Electrical system: 3 complaints (20% of all); manufacturer bulletins for this component: 250.
- Engine: 3 complaints (20% of all); manufacturer bulletins for this component: 25.
- Seat belts: 2 complaints (13% of all), 1 of them with a crash reported by the owner; manufacturer bulletins for this component: 4.
- Structure: 1 complaints (7% of all); manufacturer bulletins for this component: 105.
Engines and transmissions
US-market versions per EPA. On the right: how many NHTSA complaints name this engine or transmission type.
- 2 L · petrol · turbo · 4 cyl
- automatic, 8-speed
Drive: AWD
Symptoms owners describe
How many of the 15 NHTSA complaints mention each symptom (automatic count from complaint text; one complaint can mention several).
Components owners complain about
| Component | Owner complaints | involving a crash | Technical service bulletins (TSB) |
|---|---|---|---|
| Fuel/propulsion system | 4 | 0 | 10 |
| Electrical system | 3 | 0 | 250 |
| Engine | 3 | 0 | 25 |
| Seat belts | 2 | 1 | 4 |
| Structure | 1 | 0 | 105 |
| Steering | 1 | 0 | 38 |
| Exterior lighting | 1 | 0 | 14 |
| Fuel system | 1 | 0 | 10 |
| Tires | 1 | 0 | 7 |
| Lane departure | 1 | 1 | 5 |
| Seats | 1 | 1 | 3 |
| Forward collision avoidance | 1 | 0 | 2 |
| Vehicle speed control | 1 | 0 | 1 |
| Equipment | 0 | 0 | 213 |
What owners report
Short excerpts of NHTSA complaints in the original wording. These are owner statements not verified by NHTSA; personal data removed.
The car spun around and we were both thrown forward due to the malfunctioning of both the driver and passenger seat belts. Further inspection found the rear seatbelts as well did not function properly. Both the driver and front passenger seats reclined and broke during the impact of the accident.
I was driving down a one lane road in my car that is less than a month old, when all of a sudden my car aggressively veered to the right over the shoulder line, then it veered to the left over the yellow line and then the right again and it kept going over the line down a slight embankment into the woods about 30…
The " Steering Failure " message was displayed. The vehicle was driven to the shoulder of the road. The contact's two minor children were seated in the rear seat of the vehicle during the failure.
The vehicle was taken to dealer, where it was diagnosed and determined that the fuel tank needed to be replaced. The vehicle was not repaired due to the cost. The contact related the failure to NHTSA Campaign Number: 22V673000 (Fuel System, Gasoline).
If the gas leak recurs, it could lead to fire or poisoning. The fuel system should not fail like this, and I want to ensure no one else faces this danger. If anything happens to me as a result, I will pursue further legal action.
the driver side headlight also gets foggy when it rains, which causes the one side of the vehicle not being able to see out from. The rain in the inside goes near the electrical outlets and sometimes gets into it, if i dont wipe the water away.
The car stalled while driving. There were no warning lights or indicators before the failure. The car was unable to be restarted so it was towed to a mechanic. It was discovered the car was out of gas however the gauge read there was still a lot of gas in the tank.
My 2021 Audi Q3 SUV had been very dangerous to drive stalling, stopping on the highway and shuttering for about two weeks. While I was going about 70 miles an hour my vehicle stalled. It lead to me almost being killed and rear ended. My vehicle had been displaying a stop start malfunction code and check engine light.
When owners complained
NHTSA complaints by filing year. The peak shows at what age the problems show up most.
Comparison
By complaint count this model year ranks 1,349 of 2,102 model years in the NHTSA data (among the 36% least complained about).
On average one model year of the Q3 has 15 complaints (12 years in the data). This year has 15, about average.
What to check before buying
- Fuel/propulsion system. Fuel smell, leaks, rough running, fuel-system codes.
- Electrical system. Scan all modules, test the battery and alternator, inspect connectors near the impact zone.
- Engine. Cold start, unusual noises, oil leaks and engine codes.
- Seat belts. Belt pretensioners after airbag deployment, SRS codes.
Manufacturer service bulletins
Bulletin titles as filed with NHTSA.
- This special notice is to inform dealers to return the parts listed if it meets the criteria provided
- This TSB prvoides informaiton when there is a distance warning + ACC is not available/Audi pre sense…
This TSB prvoides informaiton when there is a distance warning + ACC is not available/Audi pre sense fault; DTC U101400, B203200.
- This bulletin states that technicians are required to report to the manufacturer when a vehicle has…
This bulletin states that technicians are required to report to the manufacturer when a vehicle has flooded, and specify the height to which the vehicle has been flooded.
- This bulletin provides information regarding fault finding and repair information for electric tailgate
- This bulletin provides information about billing for a broken sunroof glass panel
- This bulletin provides information about vibrations and rotational steering vibrations
- This bulletin provides information when there are stails/marks on the sill panel trim
- This TSB describes a corrosion issue due to outside influence and the prohibition of warranty in these cases
- This bulletin provides information when the rear parking sensor sometimes does not work, rear parking…
This bulletin provides information when the rear parking sensor sometimes does not work, rear parking sensor loose, rear parking sensor fault message.
- This bulletin provides information for reporting safety related information to the manufacturer
- This bulletin provides infomraiton abou the Audi frequency analysis application, which is available in the…
This bulletin provides infomraiton abou the Audi frequency analysis application, which is available in the App Store for Android and Apple phones.
- This bulletin provides information when the license plate mounting bracket threded inserts are stripped
NHTSA lists 853 bulletins for this year; the 12 newest are shown here.
Other years of this model
Questions and answers
What are the most common problems with the 2021 Audi Q3?
Owner complaints to NHTSA most often mention: fuel/propulsion system, electrical system, engine. Total complaints: 15. The most frequent symptoms in complaint texts: headlights and tail lights (13%), stalls while driving (13%), warning lights, check engine (13%).
How many service bulletins (TSB) were issued for the 2021 Audi Q3?
NHTSA lists 853 manufacturer service bulletins for this year. A bulletin tells dealers how to diagnose or fix a known issue; it is not a recall.
Should I buy a 2021 Audi Q3 from a US auction?
Owner complaints describe defects, not crash damage. Before bidding, check the components listed above and review the lot photos: VinWind builds a report of visible and hidden damage by VIN.
Other 2021 models
Read also
Sources: public NHTSA data (USA): service bulletins and owner complaints; YouTube: links to videos credited to their authors. Complaints are owner statements not verified by NHTSA, and describe defects rather than crash damage. Data updated 2026-11-04.