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Model reliability
MG GS reliability
The MG GS fails its MOT about as often as most cars 6 to 10 years old: 21.8% of 1,523 tests failed in 2023, against 24.4% on average.
Up to 5 years old
18.8% failed their MOT
From 1,354 MOT tests of MG GSs this age.
Where it does worse than other cars this age
Fails 3× as oftenHeadlamp aim5.5% vs 1.7%Fix about £30
Fails 67% more oftenMechanical brake components3% vs 1.8%
Fails 5× as oftenTyre pressure monitoring system2.1% vs 0.4%Fix about £90
Fails 16× as oftenABS / EBS / ESC1.6% vs 0.1%
Advised 47% more oftenMechanical brake components17.8% vs 12.1%
Advised 83% more oftenTyre condition15.4% vs 8.4%Fix about £90
6 to 10 years old
21.8% failed their MOT
From 1,523 MOT tests of MG GSs this age.
Where it does worse than other cars this age
Fails 3× as oftenHeadlamp aim7.6% vs 2.5%Fix about £30
Fails 30% more oftenExhaust emissions2.6% vs 2%Fix about £150
Fails 7× as oftenABS / EBS / ESC2.2% vs 0.3%
Fails 3× as oftenTyre pressure monitoring system2% vs 0.7%Fix about £90
Advised 58% more oftenTyre condition16.3% vs 10.3%Fix about £90
Checking a MG GS before you buy
Look at the parts above at the viewing, and read the car’s own MOT history: advisories for the same parts suggest the problem is already starting. Sweep’s free check shows every MOT, advisory and mileage reading for a registration.
Source: DVSA anonymised MOT tests 2023 (Open Government Licence v3.0). Failure rates compare this model with all cars in the same age band. Fix prices are typical independent-garage estimates.