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Mg C vs Mg Zs: reliability comparison

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

Mg C
82%
MOT pass rate · 1,274 vehicles
More reliable
Mg Zs
74%
MOT pass rate · 38,862 vehicles
Verdict: On MOT pass rate, the Mg C is the more reliable of the two — 82% pass first time versus 74%. It's one signal among several; check the full breakdown below.

Head to head

Measure Mg C Mg Zs
MOT pass rate 82% ✓ 74%
MOT failure rate 18% ✓ 26%
Faults & advisories per test 1.1 ✓ 1.8
Dangerous-fault share 1% 1%
Average mileage 49,355 mi 71,653 mi
Sample size (vehicles) 1,274 38,862

Most common faults

Mg C

  1. Parking brake: efficiency below requirements (3.7.B.7)
  2. Nearside Front wheel bearing has slight play (2.5.A.3c)
  3. Offside Front wheel bearing has slight play (2.5.A.3c)
  4. Windscreen washer provides insufficient washer liquid (8.2.3)
  5. Offside Front Axle king pin has slight play in pin and/or bush (2.5.A.3a)
  6. Oil leak

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 C is the more reliable of the two — 82% pass first time versus 74%. It's one signal among several; check the full breakdown below.

Full Mg C 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.