Mg B gt vs Mg Mgc convertable: reliability comparison
MOT pass rates, common faults and mileage compared from real UK MOT data.
Mg B gt
75%
MOT pass rate · 47,800 vehicles
Mg Mgc convertable
92%
MOT pass rate · 1 vehicles
Verdict: On MOT pass rate the Mg B gt (75%) and Mg Mgc convertable (92%) are very close — weigh the individual measures below, and remember condition depends on age, mileage and upkeep.
Head to head
| Measure | Mg B gt | Mg Mgc convertable |
|---|---|---|
| MOT pass rate | 75% | 92% ✓ |
| MOT failure rate | 25% | 8% ✓ |
| Faults & advisories per test | 1.7 | 0.3 ✓ |
| Dangerous-fault share | 0% | 0% |
| Average mileage | 56,621 mi | 65,160 mi |
| Sample size (vehicles) | 47,800 | 1 |
Most common faults
Mg B gt
- Oil leak
- Parking brake: efficiency below requirements (3.7.B.7)
- Exhaust emissions carbon monoxide content excessive (7.3.B.1a)
- Windscreen washer provides insufficient washer liquid (8.2.3)
- Horn not working (1.6.2a)
- Nearside Front Axle king pin has slight play in pin and/or bush (2.5.A.3a)
Mg Mgc convertable
- Inner steering joints have slight play
- Nearside Rear Leaf spring has a slightly deteriorated shackle pin rubber bush not resulting in excessive movement (2.4.B.2)
- wireing loom rubbing on offside rear shackle bracket
- Nearside Registration plate lamp inoperative in the case of a single lamp or all lamps (4.7.1 (b) (ii))
Reliability FAQ
On MOT pass rate the Mg B gt (75%) and Mg Mgc convertable (92%) are very close — weigh the individual measures below, and remember condition depends on age, mileage and upkeep.
Full Mg B gt report Full Mg Mgc convertable 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.