MG Zr vs MG Mgf: MOT reliability compared
Updated 05 September 2026.
30.2%
MG Zr MOT failure rate, 3.1 pts lower than MG Mgf
MG Zr is the more reliable MOT performer: 30.2% of MG Zr MOTs fail versus 33.3% for MG Mgf, a 3.1 point gap.
| Metric | MG Zr | MG Mgf |
|---|---|---|
| MOT failure rate | 30.2% | 33.3% |
| Tests analysed | 654,579 | 555,525 |
| Most common failure | Lamps & electrical (38.5%) | Brakes (41.5%) |
Questions and answers
Which is more reliable, MG Zr or MG Mgf?
MG Zr is the more reliable MOT performer: 30.2% of MG Zr MOTs fail versus 33.3% for MG Mgf, a 3.1 point gap.
What is the MOT failure rate of the MG Zr?
30.2% of MG Zr MOT tests result in a failure, from 654,579 tests.
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.