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Mg Mgf vs Mg Ng convertible: reliability comparison

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

Mg Mgf
67%
MOT pass rate · 41,973 vehicles
Mg Ng convertible
67%
MOT pass rate · 1 vehicles
Verdict: On MOT pass rate the Mg Mgf (67%) and Mg Ng convertible (67%) are very close — weigh the individual measures below, and remember condition depends on age, mileage and upkeep.

Head to head

Measure Mg Mgf Mg Ng convertible
MOT pass rate 67% 67%
MOT failure rate 33% 33%
Faults & advisories per test 2.5 1.8 ✓
Dangerous-fault share 1% 0% ✓
Average mileage 85,206 mi 27,898 mi
Sample size (vehicles) 41,973 1

Most common faults

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)

Mg Ng convertible

  1. Both front track-rod ball joint dust cover poorly secured
  2. Both rear tyres worn low
  3. Nearside rear wheel bearing rough when rotated -very close to excess-
  4. Offside Rear Rear reflector obscured but not more than 50% (1.5.1b)
  5. Parking brake: efficiency below requirements (3.7.B.7)
  6. nearside front wheel slight play in hub

Reliability FAQ

On MOT pass rate the Mg Mgf (67%) and Mg Ng convertible (67%) are very close — weigh the individual measures below, and remember condition depends on age, mileage and upkeep.

Full Mg Mgf report Full Mg Ng convertible 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.