Skip to content

Mg Mg3 vs Mg Zs: reliability comparison

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

Mg Mg3
82%
MOT pass rate · 4 vehicles
Mg Zs
74%
MOT pass rate · 38,862 vehicles
Verdict: On MOT pass rate the Mg Mg3 (82%) 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 Mg3 Mg Zs
MOT pass rate 82% ✓ 74%
MOT failure rate 18% ✓ 26%
Faults & advisories per test 0.8 ✓ 1.8
Dangerous-fault share 0% ✓ 1%
Average mileage 47,511 mi 71,653 mi
Sample size (vehicles) 4 38,862

Most common faults

Mg Mg3

  1. Front Brake pad(s) wearing thin (1.1.13 (a) (ii))
  2. Front Oil leak, but not excessive (8.4.1 (a) (i))
  3. Rear Tyre slightly damaged/cracking or perishing both rear (5.2.3 (d) (ii))
  4. Nearside Front Tyre worn close to legal limit/worn on edge (5.2.3 (e))
  5. Offside Front Tyre worn close to legal limit/worn on edge (5.2.3 (e))
  6. Front Windscreen washer provides insufficient washer liquid (3.5 (a))

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 Mg3 (82%) and Mg Zs (74%) are very close — weigh the individual measures below, and remember condition depends on age, mileage and upkeep.

Full Mg Mg3 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.