Audi A4 vs Audi A6: MOT reliability compared
Updated 05 September 2026.
21.3%
Audi A6 MOT failure rate, 2.4 pts lower than Audi A4
Audi A6 is the more reliable MOT performer: 21.3% of Audi A6 MOTs fail versus 23.7% for Audi A4, a 2.4 point gap.
| Metric | Audi A4 | Audi A6 |
|---|---|---|
| MOT failure rate | 23.7% | 21.3% |
| Tests analysed | 7,296,945 | 2,819,307 |
| Most common failure | Suspension (29.5%) | Tyres (26.8%) |
Questions and answers
Which is more reliable, Audi A4 or Audi A6?
Audi A6 is the more reliable MOT performer: 21.3% of Audi A6 MOTs fail versus 23.7% for Audi A4, a 2.4 point gap.
What is the MOT failure rate of the Audi A4?
23.7% of Audi A4 MOT tests result in a failure, from 7,296,945 tests.
What is the MOT failure rate of the Audi A6?
21.3% of Audi A6 MOT tests result in a failure, from 2,819,307 tests.