Mazda 6 vs Mazda 5: MOT reliability compared
Updated 05 September 2026.
24.6%
Mazda 6 MOT failure rate, 5.1 pts lower than Mazda 5
Mazda 6 is the more reliable MOT performer: 24.6% of Mazda 6 MOTs fail versus 29.7% for Mazda 5, a 5.1 point gap.
| Metric | Mazda 6 | Mazda 5 |
|---|---|---|
| MOT failure rate | 24.6% | 29.7% |
| Tests analysed | 1,942,819 | 419,915 |
| Most common failure | Brakes (31.3%) | Suspension (44.7%) |
Questions and answers
Which is more reliable, Mazda 6 or Mazda 5?
Mazda 6 is the more reliable MOT performer: 24.6% of Mazda 6 MOTs fail versus 29.7% for Mazda 5, a 5.1 point gap.
What is the MOT failure rate of the Mazda 6?
24.6% of Mazda 6 MOT tests result in a failure, from 1,942,819 tests.
What is the MOT failure rate of the Mazda 5?
29.7% of Mazda 5 MOT tests result in a failure, from 419,915 tests.