Opel Astra vs Opel Kadett: MOT reliability compared
Updated 05 September 2026.
29.1%
Opel Kadett MOT failure rate, 1.5 pts lower than Opel Astra
Opel Kadett is the more reliable MOT performer: 29.1% of Opel Kadett MOTs fail versus 30.6% for Opel Astra, a 1.5 point gap.
| Metric | Opel Astra | Opel Kadett |
|---|---|---|
| MOT failure rate | 30.6% | 29.1% |
| Tests analysed | 31,515 | 5,464 |
| Most common failure | Lamps & electrical (37.9%) | Lamps & electrical (40.5%) |
Questions and answers
Which is more reliable, Opel Astra or Opel Kadett?
Opel Kadett is the more reliable MOT performer: 29.1% of Opel Kadett MOTs fail versus 30.6% for Opel Astra, a 1.5 point gap.
What is the MOT failure rate of the Opel Astra?
30.6% of Opel Astra MOT tests result in a failure, from 31,515 tests.
What is the MOT failure rate of the Opel Kadett?
29.1% of Opel Kadett MOT tests result in a failure, from 5,464 tests.