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Common Problems by Model & Year

What actually goes wrong with a used car, ranked from real MOT test results — failure items, advisories and the faults the MOT never sees.

Source: DVSA MOT testing data Open Government Licence v3.0 16 models covered

Britain’s best-selling new cars

The models that have dominated the new car sales charts in recent years. Each page covers a single registration year — the one with a usable MOT record — because on cars this young the emphasis shifts: recall status, remaining warranty and service history matter more than test statistics, and a car registered in the last three years may have no MOT history at all.

Model averages are a starting point

The car in front of you has its own MOT history, mileage timeline and risk markers. Check the registration to see them.

More of Britain’s best-selling new cars

Places five to nine of the 2023 SMMT new car chart. The four models above them — Puma, Qashqai, Corsa and Sportage — are in the section above. Between them these five cover an electric SUV, a family SUV, a crossover, a premium hatchback and a late F56 MINI, and each one shows a different way that a headline pass rate can mislead you.

Britain’s most-bought used cars

The six best-selling used cars in the UK in 2025 (SMMT data), covering more than 1.3 million transactions between them. These are mature cars with a full MOT record, so the failure and advisory data is at its most useful here.

How to read these pages

A high MOT pass rate means a car is roadworthy, not that it is cheap to own. The MOT does not test gearboxes, turbochargers, timing belts, infotainment systems or hybrid batteries — which is exactly where the expensive faults live. Every page separates the two: what fails the test, and what fails your wallet.

Bear in mind that model-level statistics often span several generations. Where that distorts the picture — as it does for the Qashqai, Corsa and Golf — each page gives the figure for its own registration year alongside the model average.