MG Zr vs MG Tf: MOT reliability compared
Updated 05 September 2026.
27.1%
MG Tf MOT failure rate, 3.1 pts lower than MG Zr
MG Tf is the more reliable MOT performer: 27.1% of MG Tf MOTs fail versus 30.2% for MG Zr, a 3.1 point gap.
| Metric | MG Zr | MG Tf |
|---|---|---|
| MOT failure rate | 30.2% | 27.1% |
| Tests analysed | 654,579 | 481,442 |
| Most common failure | Lamps & electrical (38.5%) | Brakes (36.2%) |
Questions and answers
Which is more reliable, MG Zr or MG Tf?
MG Tf is the more reliable MOT performer: 27.1% of MG Tf MOTs fail versus 30.2% for MG Zr, 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 Tf?
27.1% of MG Tf MOT tests result in a failure, from 481,442 tests.