Audi A3 vs Audi Tt: MOT reliability compared
Updated 05 September 2026.
21.7%
Audi A3 MOT failure rate, 0.1 pts lower than Audi Tt
Audi A3 is the more reliable MOT performer: 21.7% of Audi A3 MOTs fail versus 21.8% for Audi Tt, a 0.1 point gap.
| Metric | Audi A3 | Audi Tt |
|---|---|---|
| MOT failure rate | 21.7% | 21.8% |
| Tests analysed | 7,707,618 | 2,360,430 |
| Most common failure | Tyres (26.9%) | Lamps & electrical (32.8%) |
Questions and answers
Which is more reliable, Audi A3 or Audi Tt?
Audi A3 is the more reliable MOT performer: 21.7% of Audi A3 MOTs fail versus 21.8% for Audi Tt, a 0.1 point gap.
What is the MOT failure rate of the Audi A3?
21.7% of Audi A3 MOT tests result in a failure, from 7,707,618 tests.
What is the MOT failure rate of the Audi Tt?
21.8% of Audi Tt MOT tests result in a failure, from 2,360,430 tests.