Mg B gt vs Mg Mgf steptroni: 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 Mgf steptroni
73%
MOT pass rate · 4 vehicles
Verdict: On MOT pass rate the Mg B gt (75%) and Mg Mgf steptroni (73%) 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 Mgf steptroni |
|---|---|---|
| MOT pass rate | 75% ✓ | 73% |
| MOT failure rate | 25% ✓ | 27% |
| Faults & advisories per test | 1.7 ✓ | 2.4 |
| Dangerous-fault share | 0% | 0% |
| Average mileage | 56,621 mi | 48,130 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 Mgf steptroni
- Windscreen has damage to an area less than a 40mm circle outside zone 'A' (8.3.1d)
- Rear Sub-frame corroded but not seriously weakened (2.4.G.1)
- Rear Brake pad(s) wearing thin (3.5.1g)
- Oil leak
- Offside Front brake disc worn, pitted or scored, but not seriously weakened (3.5.1i)
- Parking brake: parking brake efficiency only just met. It would appear that the braking system requires adjustment or repair. (3.7.B.7)
Reliability FAQ
On MOT pass rate the Mg B gt (75%) and Mg Mgf steptroni (73%) are very close — weigh the individual measures below, and remember condition depends on age, mileage and upkeep.
Full Mg B gt report Full Mg Mgf steptroni 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.