MOT failure data · 2025
Audi A6 MOT problems
Across every Audi A6 that failed its 2025 MOT, the defect testers recorded most often was tread depth tread depth below requirements of 1.6mm, on 8.5% of failure items. The broadest problem area was suspension at 24.01%. These are recorded defects across the model, not a diagnosis of any one car.
Most common Audi A6 MOT failures
| # | Recorded defect | Area | Share |
|---|---|---|---|
| 1 | Tread depth tread depth below requirements of 1.6mm | Tyres | 8.5% |
| 2 | Pins and bushes pin or bush excessively worn | Suspension | 6.99% |
| 3 | Coil spring fractured or broken | Suspension | 5% |
| 4 | Condition has ply or cords exposed | Tyres | 4.73% |
| 5 | Malfunction indicator lamp inoperative or indicates a malfunction | Noise, emissions and leaks | 4.42% |
| 6 | Condition has a cut in excess of the requirements deep enough to reach the ply or cords | Tyres | 4.32% |
| 7 | Joints constant velocity boot split or insecure, no longer prevents the ingress of dirt | Body, chassis, structure | 4.28% |
| 8 | Linkage pins and bushes pin or bush excessively worn | Suspension | 3.29% |
| 9 | Brake pads less than 1.5 mm thick | Brakes | 3.11% |
| 10 | Wipers does not clear the windscreen effectively | Visibility | 2.4% |
Shares are of all recorded failure items for this model, so they sum to less than 100% — a single failed test often records several defects, and the long tail below the top 10 is not shown.
What this means if you are buying one
Use it as a viewing checklist. If you are looking at a Audi A6, these are the areas worth inspecting and worth asking about — and worth reading the car's own MOT history for, since a defect that keeps reappearing as an advisory is a better signal than any model-wide average.
The MOT record also has hard limits: it does not check the engine, clutch or gearbox, and it says nothing about outstanding finance, insurance write-off history, stolen markers or whether the mileage is genuine. Our used Audi A6 buying guide covers what to check beyond the MOT.
Checking a specific Audi A6?
Enter its registration for finance, write-off, stolen, mileage and keeper history.
Other Audi models
- Audi A3 MOT problems
- Audi A4 MOT problems
- Audi A1 MOT problems
- Audi Q3 MOT problems
- Audi A5 MOT problems
- Audi Q5 MOT problems
Audi A6 MOT FAQs
What does a Audi A6 most commonly fail its MOT on?
The single most recorded defect on Audi A6 cars failing their 2025 MOT was "tread depth tread depth below requirements of 1.6mm", appearing on 8.5% of failure items.
Does this mean my Audi A6 will fail?
No. This is what testers recorded across every Audi A6 that failed in 2025. It shows where this model tends to need attention, not the condition of any individual car. The Audi A6 passed 83.04% of its initial tests.
How do I see a specific Audi A6's MOT history?
Enter its registration on our free MOT history check to see that car's own test results, advisories and recorded mileages.
See also: Audi A6 MOT pass rate · used Audi A6 buying guide · free MOT history check
Defect counts from the DVSA MOT Anonymised test-item data for 2025 (class 4 initial tests, failure items only — advisories and minor defects excluded), licensed under the Open Government Licence v3.0.