Audi Tt vs Audi A1: MOT reliability compared
Updated 05 September 2026.
16.3%
Audi A1 MOT failure rate, 5.5 pts lower than Audi Tt
Audi A1 is the more reliable MOT performer: 16.3% of Audi A1 MOTs fail versus 21.8% for Audi Tt, a 5.5 point gap.
| Metric | Audi Tt | Audi A1 |
|---|---|---|
| MOT failure rate | 21.8% | 16.3% |
| Tests analysed | 2,360,430 | 2,209,642 |
| Most common failure | Lamps & electrical (32.8%) | Tyres (32.0%) |
Questions and answers
Which is more reliable, Audi Tt or Audi A1?
Audi A1 is the more reliable MOT performer: 16.3% of Audi A1 MOTs fail versus 21.8% for Audi Tt, a 5.5 point gap.
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.
What is the MOT failure rate of the Audi A1?
16.3% of Audi A1 MOT tests result in a failure, from 2,209,642 tests.