Mg B mk2 vs Mg Metro: reliability comparison
MOT pass rates, common faults and mileage compared from real UK MOT data.
Mg B mk2
43%
MOT pass rate · 1 vehicles
Mg Metro
70%
MOT pass rate · 99,203 vehicles
Verdict: On MOT pass rate the Mg B mk2 (43%) and Mg Metro (70%) are very close — weigh the individual measures below, and remember condition depends on age, mileage and upkeep.
Head to head
| Measure | Mg B mk2 | Mg Metro |
|---|---|---|
| MOT pass rate | 43% | 70% ✓ |
| MOT failure rate | 57% | 30% ✓ |
| Faults & advisories per test | 2.4 | 1.9 ✓ |
| Dangerous-fault share | 0% ✓ | 1% |
| Average mileage | 99,956 mi | 69,393 mi |
| Sample size (vehicles) | 1 | 99,203 |
Most common faults
Mg B mk2
- Windscreen washer provides insufficient washer liquid (8.2.3)
- fuel tank cap seal deteriorated but maintaining the sealing arrangement
- Nearside Front Axle king pin has slight play in pin and/or bush (2.5.A.3a)
- Nearside Front Front wheel bearing has slight play (2.5.A.3c)
- Offside Front Axle king pin has slight play in pin and/or bush (2.5.A.3a)
- Offside Front Front wheel bearing has slight play (2.5.A.3c)
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)
Reliability FAQ
On MOT pass rate the Mg B mk2 (43%) and Mg Metro (70%) are very close — weigh the individual measures below, and remember condition depends on age, mileage and upkeep.
Full Mg B mk2 report Full Mg Metro 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.