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Model reliability
MG ZS reliability
The MG ZS fails its MOT more often than most cars up to 5 years old: 17.3% of 17,616 tests failed in 2023, against 14% on average.
Up to 5 years old
17.3% failed their MOT
From 17,616 MOT tests of MG ZSs this age.
Where it does worse than other cars this age
Fails 89% more oftenMechanical brake components3.4% vs 1.8%
Fails 4× as oftenHeadlamps2.9% vs 0.7%Fix about £30
Fails 5× as oftenBrake performance2.7% vs 0.5%
Fails 2× as oftenExhaust emissions1.7% vs 0.8%Fix about £150
Advised 84% more oftenMechanical brake components22.3% vs 12.1%
Advised 50% more oftenTyre tread depth21.3% vs 14.2%Fix about £90
Advised 6× as oftenBrake performance4.2% vs 0.7%
Over 10 years old
39.4% failed their MOT
From 1,466 MOT tests of MG ZSs this age.
Where it does worse than other cars this age
Fails 2× as oftenBrake performance11.9% vs 5.8%
Fails 31% more oftenHeadlamp aim7.1% vs 5.4%Fix about £30
Fails 35% more oftenExhaust emissions6.9% vs 5.1%Fix about £150
Fails 5× as oftenComponent mounting prescribed areas6.8% vs 1.4%
Advised 56% more oftenSuspension arms18.9% vs 12.1%
Advised 76% more oftenRigid brake pipes14.6% vs 8.3%Fix about £120
Advised 2× as oftenBrake performance10.2% vs 4.6%
Advised 5× as oftenComponent mounting prescribed areas7.8% vs 1.6%
Checking a MG ZS 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.