AI Damage2021 Audi A3: common problems
The maker issued 81 service bulletins for this year. We found 1 repair videos on YouTube. Details by component below, with sources.
Key figures
- Technical service bulletins (TSB)
- 81
- YouTube repair videos
- 1
Components owners complain about
| Component | Owner complaints | involving a crash | Technical service bulletins (TSB) |
|---|---|---|---|
| Equipment | 0 | 0 | 44 |
| Electrical system | 0 | 0 | 15 |
| Engine and cooling | 0 | 0 | 10 |
| Suspension | 0 | 0 | 10 |
| Structure | 0 | 0 | 4 |
| Exterior lighting | 0 | 0 | 3 |
| Service brakes | 0 | 0 | 3 |
| Steering | 0 | 0 | 3 |
| Visibility | 0 | 0 | 3 |
| Powertrain | 0 | 0 | 2 |
| Wheels | 0 | 0 | 2 |
| Backover prevention | 0 | 0 | 1 |
| Engine | 0 | 0 | 1 |
| Seat belts | 0 | 0 | 1 |
Comparison
What to check before buying
- Electrical system. Scan all modules, test the battery and alternator, inspect connectors near the impact zone.
- Engine and cooling. Radiator and fan after a frontal hit, coolant level and condition, overheating.
- Suspension. Wheel alignment, control arms, subframe, even tire wear.
- Structure. Rails, pillars, panel gaps, signs of pulling or welding.
Manufacturer service bulletins
Bulletin titles as filed with NHTSA.
- This bulletin provides information for when DTC P0A7D00 is stored
- This bulletin provides information when there is a warning for the 3rd brake light; DTC B12C615
- This bulletin provides information for when Apple CarPlay pops up or takes over audio without user…
This bulletin provides information for when Apple CarPlay pops up or takes over audio without user intervention in vehicles with the Audi Smartphone Interface.
- This bulletin provides information for when DTC C101AF1, C101BF1, C101CF1, C101DF1 are stored in the ABS…
This bulletin provides information for when DTC C101AF1, C101BF1, C101CF1, C101DF1 are stored in the ABS control unit with the message "magnetic field too low".
- This bulletin provides information for when the Virtual cockpit displays a colorful line (pixel error)
- This bulletin provides details on the VIN-4-PIN program
- This bulletin provides information on the additional reporting requirements for safety related inquiries
- This bulletin provides information for when there is a rattle noise from the rear suspension
- This bulletin provides information for a loose engine oil filler cap is loose, DTCs P06800, P227900, P050700
- This bulletin provides instructions for instances where squeaking or creaking noises are heard when the…
This bulletin provides instructions for instances where squeaking or creaking noises are heard when the vehicle is driven on uneven roads.
- This bulletin provides repair instructions for instances where creaking/squeaking noises are heard from…
This bulletin provides repair instructions for instances where creaking/squeaking noises are heard from the left front or right front area of the vehicle when being driven on uneven roads.
- This bulletin provides information on the discontinuation and mixing of Audi-approved engine coolants
NHTSA lists 81 bulletins for this year; the 12 newest are shown here.
Repair videos
We do not copy videos: these are YouTube links credited to their authors. Amounts are as stated by the author and not verified by us.
Other years of this model
Questions and answers
What are the most common problems with the 2021 Audi A3?
There are no owner complaints in the NHTSA data for this year; the data comes from 81 manufacturer service bulletins.
How many service bulletins (TSB) were issued for the 2021 Audi A3?
NHTSA lists 81 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 A3 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.