Mg B gt vs Mg Bg t: 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 Bg t
70%
MOT pass rate · 4 vehicles
Verdict: On MOT pass rate the Mg B gt (75%) and Mg Bg t (70%) 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 Bg t |
|---|---|---|
| MOT pass rate | 75% ✓ | 70% |
| MOT failure rate | 25% ✓ | 30% |
| Faults & advisories per test | 1.7 ✓ | 2.1 |
| Dangerous-fault share | 0% | 0% |
| Average mileage | 56,621 mi | 75,634 mi |
| Sample size (vehicles) | 47,800 | 4 |
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 Bg t
- Oil leak, but not excessive (8.4.1 (a) (i))
- Nearside Rear Outer Suspension component mounting prescribed area is corroded but not considered excessive sill (5.3.6 (a) (i))
- Brakes imbalanced across an axle (3.7.B.5b)
- Nearside Front Tyre worn close to the legal limit (4.1.E.1)
- Windscreen washer provides insufficient washer liquid (8.2.3)
- Offside Rear Front wheel bearing has slight play (2.5.A.3c)
Reliability FAQ
On MOT pass rate the Mg B gt (75%) and Mg Bg t (70%) are very close — weigh the individual measures below, and remember condition depends on age, mileage and upkeep.
Full Mg B gt report Full Mg Bg t 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.