MG Mgf vs MG Zs: MOT reliability compared
Updated 05 September 2026.
22.7%
MG Zs MOT failure rate, 10.6 pts lower than MG Mgf
MG Zs is the more reliable MOT performer: 22.7% of MG Zs MOTs fail versus 33.3% for MG Mgf, a 10.6 point gap.
| Metric | MG Mgf | MG Zs |
|---|---|---|
| MOT failure rate | 33.3% | 22.7% |
| Tests analysed | 555,525 | 506,307 |
| Most common failure | Brakes (41.5%) | Brakes (33.3%) |
Questions and answers
Which is more reliable, MG Mgf or MG Zs?
MG Zs is the more reliable MOT performer: 22.7% of MG Zs MOTs fail versus 33.3% for MG Mgf, a 10.6 point gap.
What is the MOT failure rate of the MG Mgf?
33.3% of MG Mgf MOT tests result in a failure, from 555,525 tests.
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.