Mg Mg roadster vs Mg Zs: reliability comparison
MOT pass rates, common faults and mileage compared from real UK MOT data.
Mg Mg roadster
74%
MOT pass rate · 5 vehicles
Mg Zs
74%
MOT pass rate · 38,862 vehicles
Verdict: On MOT pass rate the Mg Mg roadster (74%) 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 Mg roadster | Mg Zs |
|---|---|---|
| MOT pass rate | 74% | 74% |
| MOT failure rate | 26% | 26% |
| Faults & advisories per test | 1.5 ✓ | 1.8 |
| Dangerous-fault share | 0% ✓ | 1% |
| Average mileage | 83,070 mi | 71,653 mi |
| Sample size (vehicles) | 5 | 38,862 |
Most common faults
Mg Mg roadster
- Oil leak
- Battery insecure
- nearside rear axle strap deteriorated
- Nearside Front wheel bearing has slight play (2.5.A.3c)
- Steering column top bearing slightly worn (2.1.2c)
- Offside Windscreen wiper does not clear the windscreen effectively (8.2.2)
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 Mg roadster (74%) and Mg Zs (74%) are very close — weigh the individual measures below, and remember condition depends on age, mileage and upkeep.
Full Mg Mg roadster 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.