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Mg Gs vs Mg Mgf: reliability comparison

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

Mg Gs
83%
MOT pass rate · 2,839 vehicles
More reliable
Mg Mgf
67%
MOT pass rate · 41,973 vehicles
Verdict: On MOT pass rate, the Mg Gs is the more reliable of the two — 83% pass first time versus 67%. It's one signal among several; check the full breakdown below.

Head to head

Measure Mg Gs Mg Mgf
MOT pass rate 83% ✓ 67%
MOT failure rate 17% ✓ 33%
Faults & advisories per test 1.4 ✓ 2.5
Dangerous-fault share 4% 1% ✓
Average mileage 57,592 mi 85,206 mi
Sample size (vehicles) 2,839 41,973

Most common faults

Mg Gs

  1. Offside Front Tyre worn close to legal limit/worn on edge (5.2.3 (e))
  2. Nearside Front Tyre worn close to legal limit/worn on edge (5.2.3 (e))
  3. Rear Brake disc worn, pitted or scored, but not seriously weakened (1.1.14 (a) (ii))
  4. Nearside Rear Tyre slightly damaged/cracking or perishing (5.2.3 (d) (ii))
  5. Offside Rear Tyre slightly damaged/cracking or perishing (5.2.3 (d) (ii))
  6. Nearside Front Tyre slightly damaged/cracking or perishing (5.2.3 (d) (ii))

Mg Mgf

  1. Parking brake: efficiency below requirements (3.7.B.7)
  2. Exhaust emissions carbon monoxide content after 2nd fast idle excessive (7.3.D.3)
  3. Nearside Rear Tyre worn close to the legal limit (4.1.E.1)
  4. Offside Rear Tyre worn close to the legal limit (4.1.E.1)
  5. Offside Front Tyre worn close to the legal limit (4.1.E.1)
  6. Nearside Front Tyre worn close to the legal limit (4.1.E.1)

Reliability FAQ

On MOT pass rate, the Mg Gs is the more reliable of the two — 83% pass first time versus 67%. It's one signal among several; check the full breakdown below.

Full Mg Gs report Full Mg Mgf 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.