Mg Bg, coupee vs Mg Zs: reliability comparison
MOT pass rates, common faults and mileage compared from real UK MOT data.
Mg Bg, coupee
81%
MOT pass rate · 1 vehicles
Mg Zs
74%
MOT pass rate · 38,862 vehicles
Verdict: On MOT pass rate the Mg Bg, coupee (81%) and Mg Zs (74%) are very close — weigh the individual measures below, and remember condition depends on age, mileage and upkeep.
Head to head
| Measure | Mg Bg, coupee | Mg Zs |
|---|---|---|
| MOT pass rate | 81% ✓ | 74% |
| MOT failure rate | 19% ✓ | 26% |
| Faults & advisories per test | 1.0 ✓ | 1.8 |
| Dangerous-fault share | 0% ✓ | 1% |
| Average mileage | 88,810 mi | 71,653 mi |
| Sample size (vehicles) | 1 | 38,862 |
Most common faults
Mg Bg, coupee
- Oil leak
- Nearside Vehicle structure has excessive corrosion, seriously affecting its strength within 30cm of the body mountings (6.1.B.2)
- Coolant leak
- Nearside Front wheel bearing has slight play (2.5.A.3c)
- Offside Front wheel bearing has slight play (2.5.A.3c)
- nearside front tyre slightly perished
Mg Zs
- Nearside Front Tyre worn close to the legal limit (4.1.E.1)
- Offside Front Tyre worn close to the legal limit (4.1.E.1)
- Parking brake: efficiency below requirements (3.7.B.7)
- Nearside Rear Tyre worn close to the legal limit (4.1.E.1)
- Offside Rear Tyre worn close to the legal limit (4.1.E.1)
- Nearside Front Tyre worn close to legal limit/worn on edge (5.2.3 (e))
Reliability FAQ
On MOT pass rate the Mg Bg, coupee (81%) and Mg Zs (74%) are very close — weigh the individual measures below, and remember condition depends on age, mileage and upkeep.
Full Mg Bg, coupee report Full Mg Zs 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.