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Mg Mgb gt convertable vs Mg Zs: reliability comparison

MOT pass rates, common faults and mileage compared from real UK MOT data.

Mg Mgb gt convertable
67%
MOT pass rate · 1 vehicles
Mg Zs
74%
MOT pass rate · 38,862 vehicles
Verdict: On MOT pass rate the Mg Mgb gt convertable (67%) 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 Mgb gt convertable Mg Zs
MOT pass rate 67% 74% ✓
MOT failure rate 33% 26% ✓
Faults & advisories per test 4.9 1.8 ✓
Dangerous-fault share 0% ✓ 1%
Average mileage 14,383 mi 71,653 mi
Sample size (vehicles) 1 38,862

Most common faults

Mg Mgb gt convertable

  1. Nearside Front Suspension arm rubber bush deteriorated but not resulting in excessive movement (2.4.G.2)
  2. Offside Front Suspension arm rubber bush deteriorated but not resulting in excessive movement (2.4.G.2)
  3. Nearside Front wheel bearing has slight play (2.5.A.3c)
  4. Oil leak
  5. Exhaust emissions hydrocarbon content excessive (7.3.B.1b)
  6. Offside Front wheel bearing has slight play (2.5.A.3c)

Mg Zs

  1. Nearside Front Tyre worn close to the legal limit (4.1.E.1)
  2. Offside Front Tyre worn close to the legal limit (4.1.E.1)
  3. Parking brake: efficiency below requirements (3.7.B.7)
  4. Nearside Rear Tyre worn close to the legal limit (4.1.E.1)
  5. Offside Rear Tyre worn close to the legal limit (4.1.E.1)
  6. Nearside Front Tyre worn close to legal limit/worn on edge (5.2.3 (e))

Reliability FAQ

On MOT pass rate the Mg Mgb gt convertable (67%) and Mg Zs (74%) are very close — weigh the individual measures below, and remember condition depends on age, mileage and upkeep.

Full Mg Mgb gt convertable 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.