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Model reliability
MG Zt reliability
The MG Zt fails its MOT about as often as most cars over 10 years old: 36.3% of 1,711 tests failed in 2023, against 39.7% on average.
Over 10 years old
36.3% failed their MOT
From 1,711 MOT tests of MG Zts this age.
Where it does worse than other cars this age
Fails 64% more oftenBrake performance9.5% vs 5.8%
Fails 55% more oftenAnti-roll bars6.5% vs 4.2%
Fails 6× as oftenSRS malfunction indicator lamp5.8% vs 0.9%Fix about £30
Fails 4× as oftenComponent mounting prescribed areas5.2% vs 1.4%
Advised 2× as oftenRigid brake pipes20% vs 8.3%Fix about £120
Advised 40% more oftenAnti-roll bars8.4% vs 6%
Advised 44% more oftenRegistration plate lamp(s)7.5% vs 5.2%Fix about £30
Advised 52% more oftenSub-frames6.4% vs 4.2%
Checking a MG Zt 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.