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Model reliability
MG ZR reliability
The MG ZR fails its MOT about as often as most cars over 10 years old: 37.2% of 2,409 tests failed in 2023, against 39.7% on average.
Over 10 years old
37.2% failed their MOT
From 2,409 MOT tests of MG ZRs this age.
Where it does worse than other cars this age
Fails 43% more oftenExhaust emissions7.3% vs 5.1%Fix about £150
Fails 2× as oftenTransmission6.4% vs 2.6%
Fails 4× as oftenComponent mounting prescribed areas5.7% vs 1.4%
Fails 81% more oftenExhaust system3.8% vs 2.1%Fix about £150
Advised 72% more oftenExhaust system9.1% vs 5.3%Fix about £150
Advised 76% more oftenBrake performance8.1% vs 4.6%
Advised 3× as oftenTransmission7.4% vs 2.9%
Advised 8× as oftenPower steering6.4% vs 0.8%
Checking a MG ZR 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.