Mg Metro vs Mg Tf 135: reliability comparison
MOT pass rates, common faults and mileage compared from real UK MOT data.
Mg Metro
70%
MOT pass rate · 99,203 vehicles
Mg Tf 135
77%
MOT pass rate · 77 vehicles
More reliable
Verdict: On MOT pass rate, the Mg Tf 135 is the more reliable of the two — 77% pass first time versus 70%. It's one signal among several; check the full breakdown below.
Head to head
| Measure | Mg Metro | Mg Tf 135 |
|---|---|---|
| MOT pass rate | 70% | 77% ✓ |
| MOT failure rate | 30% | 23% ✓ |
| Faults & advisories per test | 1.9 | 1.5 ✓ |
| Dangerous-fault share | 1% ✓ | 2% |
| Average mileage | 69,393 mi | 45,739 mi |
| Sample size (vehicles) | 99,203 | 77 |
Most common faults
Mg Metro
- Exhaust emissions carbon monoxide content excessive (7.3.B.1a)
- Exhaust emissions hydrocarbon content excessive (7.3.B.1b)
- Nearside Front Subframe mounting prescribed area is excessively corroded (2.4.A.3)
- Parking brake: efficiency below requirements (3.7.B.7)
- Oil leak
- Service brake: efficiency below requirements (3.7.B.7)
Mg Tf 135
- Front Sub-frame corroded but not seriously weakened (5.3.3 (b) (i))
- Nearside Front Brake pipe corroded, covered in grease or other material (1.1.11 (c))
- Rear Sub-frame corroded but not seriously weakened (5.3.3 (b) (i))
- Offside Front Brake pipe corroded, covered in grease or other material (1.1.11 (c))
- Offside Front Track rod end ball joint has excessive play (2.1.3 (b) (i))
- Coolant leak
Reliability FAQ
On MOT pass rate, the Mg Tf 135 is the more reliable of the two — 77% pass first time versus 70%. It's one signal among several; check the full breakdown below.
Full Mg Metro report Full Mg Tf 135 report Most reliable cars
Pass rates are computed over completed (pass/fail) MOT tests. Reliability also depends on age, mileage and upkeep — see each model's page for the full picture.