In 2025, 111,407 Audi A6 cars had a regular MOT in Great Britain. 79% passed first time, compared with 69% for all cars of the same ages, which makes the A6 better than average. Adjusted for age, it ranks 17 of the 217 most-tested car models.
That comparison matters: older cars fail more often, so a raw pass rate flatters models that are mostly young. We compare each model against every car on the road at the same age.
Pass rate by age
At 4 years old, 90% of A6s passed first time (all cars that age: 87%). By 20 years, that figure is 64% (all cars: 58%). It beats the average car at every age with enough data, from 5 to 20 years.
Audi A6 All cars of that age
| Age | Tests | A6 passed first time | All cars | Typical mileage |
|---|---|---|---|---|
| 4 years | 883 | 90% | 87% | 47,157 |
| 5 years | 1,611 | 90% | 86% | 53,625 |
| 6 years | 7,976 | 88% | 84% | 65,733 |
| 7 years | 8,075 | 86% | 81% | 72,712 |
| 8 years | 9,203 | 85% | 78% | 85,640 |
| 9 years | 12,917 | 84% | 75% | 95,245 |
| 10 years | 11,020 | 82% | 72% | 105,966 |
| 11 years | 10,359 | 79% | 69% | 114,145 |
| 12 years | 10,000 | 79% | 66% | 122,554 |
| 13 years | 7,661 | 78% | 63% | 132,218 |
| 14 years | 6,504 | 73% | 61% | 141,194 |
| 15 years | 6,136 | 69% | 59% | 149,320 |
| 16 years | 3,815 | 69% | 58% | 155,626 |
| 17 years | 4,671 | 66% | 57% | 158,726 |
| 18 years | 4,410 | 66% | 57% | 163,902 |
| 19 years | 2,402 | 65% | 57% | 167,607 |
| 20 years | 1,365 | 64% | 58% | 162,458 |
What fails most on a Audi A6
The area that lets the A6 down most, relative to other cars, is seat belts and airbags: 1.1% of tests failed on it, 3.4 times the rate for the average car. It does comparatively well on brakes and lights and electrics.
Share of A6 tests failing on this area Average car
The six most common failure items
| Failure item | Area | Share of tests |
|---|---|---|
| A suspension pin, bush or joint excessively worn | Suspension | 5.0% |
| Tyre tread depth not in accordance with the requirements | Tyres | 3.6% |
| The aim of a headlamp is not within limits laid down in the requirements | Lights and electrics | 3.2% |
| A tyre seriously damaged | Tyres | 3.1% |
| Engine MIL illuminated indicating a malfunction | Emissions and leaks | 2.4% |
| A spring or spring component fractured or seriously weakened | Suspension | 2.1% |
What to check when buying a used A6
Based on where the A6 fails more often than other cars, these are the checks worth making before you buy:
- Seat belts and airbags: Pull every belt out fully and let it retract, check the buckles latch, and make sure the airbag light goes out after starting. More
- Tyres: Check tread across the whole width (uneven wear hints at alignment or suspension faults), and look for cuts, bulges and mismatched brands. Repair guide
- Emissions and leaks: Look for oil and coolant leaks underneath, listen for exhaust blows on a cold start, and watch for smoke when revving. Repair guide
Then check the individual car: its own MOT history will show whether it follows the pattern. A car with repeated advisories in the same weak area is more likely to fail its next test.
Check a specific A6
Enter the registration to see its full MOT history, mileage record and reliability score, compared with these figures.
Check a A6Frequently asked questions
What is the MOT pass rate for a Audi A6?
In 2025, 79% of Audi A6 cars passed their MOT first time, across 111,407 tests. Cars of the same ages averaged 69%.
What do Audi A6 cars most often fail their MOT on?
The most common failure items were: a suspension pin, bush or joint excessively worn (5.0% of tests); tyre tread depth not in accordance with the requirements (3.6% of tests); the aim of a headlamp is not within limits laid down in the requirements (3.2% of tests).
Other Audi models
Audi A3 (74%), Audi A4 (72%), Audi A1 (75%), Audi A5 (76%), Audi TT (77%), Audi Q3 (79%). All Audi models
Source: DVSA anonymised MOT tests and results, 2025 (class 4 normal tests; first-time pass means passed with no faults fixed at the test). Contains public sector information licensed under the Open Government Licence v3.0.