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Mg Mgb roaster vs Mg Mgf: reliability comparison

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

Mg Mgb roaster
86%
MOT pass rate · 2 vehicles
Mg Mgf
67%
MOT pass rate · 41,973 vehicles
Verdict: On MOT pass rate the Mg Mgb roaster (86%) and Mg Mgf (67%) are very close — weigh the individual measures below, and remember condition depends on age, mileage and upkeep.

Head to head

Measure Mg Mgb roaster Mg Mgf
MOT pass rate 86% ✓ 67%
MOT failure rate 14% ✓ 33%
Faults & advisories per test 1.1 ✓ 2.5
Dangerous-fault share 0% ✓ 1%
Average mileage 84,926 mi 85,206 mi
Sample size (vehicles) 2 41,973

Most common faults

Mg Mgb roaster

  1. Parking brake: parking brake efficiency only just met. It would appear that the braking system requires adjustment or repair. (3.7.B.7)
  2. Nearside Front wheel bearing has slight play (2.5.A.3c)
  3. Offside Rear wheel bearing has slight play (2.6.2)
  4. Nearside Front Steering rack gaiter split (2.2.D.2d)
  5. Offside Front Steering rack gaiter split (2.2.D.2d)
  6. Offside Rear Fluid suspension unit leaking (2.4.D.2)

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 Mgb roaster (86%) and Mg Mgf (67%) are very close — weigh the individual measures below, and remember condition depends on age, mileage and upkeep.

Full Mg Mgb roaster 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.