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Mg Mgb gt v8 vs Mg Zs: reliability comparison

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

Mg Mgb gt v8
83%
MOT pass rate · 14 vehicles
Mg Zs
74%
MOT pass rate · 38,862 vehicles
Verdict: On MOT pass rate the Mg Mgb gt v8 (83%) 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 v8 Mg Zs
MOT pass rate 83% ✓ 74%
MOT failure rate 17% ✓ 26%
Faults & advisories per test 1.2 ✓ 1.8
Dangerous-fault share 0% ✓ 1%
Average mileage 50,670 mi 71,653 mi
Sample size (vehicles) 14 38,862

Most common faults

Mg Mgb gt v8

  1. both head light patterns poor
  2. Nearside Track rod end ball joint dust cover deteriorated, but preventing the ingress of dirt (2.2.C.1c)
  3. Oil leak
  4. nearside mirror insecure
  5. play in both front suspension trunnions
  6. Offside Front Wheel bearing slightly noisy (5.1.3 (b) (i))

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 v8 (83%) 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 v8 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.