MG Zs vs MG 3: MOT reliability compared
Updated 05 September 2026.
18.6%
MG 3 MOT failure rate, 4.1 pts lower than MG Zs
MG 3 is the more reliable MOT performer: 18.6% of MG 3 MOTs fail versus 22.7% for MG Zs, a 4.1 point gap.
| Metric | MG Zs | MG 3 |
|---|---|---|
| MOT failure rate | 22.7% | 18.6% |
| Tests analysed | 506,307 | 170,040 |
| Most common failure | Brakes (33.3%) | Tyres (27.2%) |
Questions and answers
Which is more reliable, MG Zs or MG 3?
MG 3 is the more reliable MOT performer: 18.6% of MG 3 MOTs fail versus 22.7% for MG Zs, a 4.1 point gap.
What is the MOT failure rate of the MG Zs?
22.7% of MG Zs MOT tests result in a failure, from 506,307 tests.
What is the MOT failure rate of the MG 3?
18.6% of MG 3 MOT tests result in a failure, from 170,040 tests.