MOT performance
Body, chassis and structure: MOT failure rates
3.5% of 65,477,892 MOT tests on cars and light vans in 2023–2024 failed on body, chassis and structure, 2,261,891 tests in all. Among models with at least 20,000 tests, rates relative to comparable cars range from -93% to +734%.
65,477,892 MOT tests on 34,140,187 vehicles, 2023–2024 · Source: DVSA (Open Government Licence) · Analysis: 73 Auto
Check a specific car's MOT history and running costsAt a glance
| Figure | Value | Basis |
|---|---|---|
| Tests failed on body, chassis and structure | 3.5% | 2,261,891 of 65,477,892 tests |
| Models compared | 320 | each with ≥ 20,000 tests |
Most common items
| Item | Area | Share of tests |
|---|---|---|
| Joints: constant velocity boot split or insecure, no longer prevents the ingress of dirt | Body, chassis and structure | 1.36% |
Failure items with their own page
- Joints: constant velocity boot split or insecure, no longer prevents the ingress of dirt · 1.36% of tests
- Exhaust system: has a major leak of exhaust gases · 0.78% of tests
- Exhaust system: system insecure · 0.29% of tests
- Integral vehicle structure condition: corroded to the extent that the rigidity of the assembly is significantly reduced · 0.15% of tests
- Chassis condition: or chassis has excessive corrosion, seriously affecting its strength within 30cm of a body mounting · 0.12% of tests
- Chassis condition: corroded to the extent that the rigidity of the assembly is significantly reduced · 0.08% of tests
- Door condition: cannot be opened from outside the vehicle · 0.07% of tests
- Fuel cap/sealing device: ineffective · 0.07% of tests
- System: component leaking · 0.05% of tests
- Other body component: component damaged and likely to cause injury · 0.05% of tests
- Bumpers: damaged and likely to cause injury when grazed or contacted · 0.05% of tests
- Bumpers: insecure · 0.04% of tests
- Joints: constant velocity boot no longer prevents the ingress of dirt · 0.04% of tests
Models that fail on it most often
Relative to cars of the same age, mileage and fuel.
| Model | Tests | Failed on it | vs similar cars |
|---|---|---|---|
| Vauxhall Crossland | 118,672 | 3.2% | +734% |
| Citroen C3 Aircross | 54,618 | 3.1% | +651% |
| DS 3 | 68,070 | 7.8% | +587% |
| Peugeot 2008 | 246,579 | 8.0% | +556% |
| Citroen DS3 | 146,860 | 15.3% | +351% |
| Toyota Proace | 23,389 | 6.2% | +338% |
| Peugeot 208 | 402,103 | 7.2% | +319% |
| Dacia Sandero | 205,898 | 5.2% | +307% |
| Mercedes-Benz Citan | 40,694 | 7.6% | +272% |
| Citroen Dispatch | 95,578 | 12.8% | +221% |
Models that fail on it least often
| Model | Tests | Failed on it | vs similar cars |
|---|---|---|---|
| BMW 640 | 20,209 | 0.2% | -93% |
| BMW M4 | 24,113 | 0.1% | -91% |
| Jaguar F-Type | 28,642 | 0.1% | -89% |
| Bentley Continental | 29,070 | 0.4% | -87% |
| Mazda CX-5 | 128,119 | 0.2% | -86% |
| BMW M3 | 31,544 | 0.8% | -85% |
| BMW X4 | 33,200 | 0.2% | -84% |
| Mercedes-Benz SL | 43,454 | 0.9% | -83% |
| BMW 4 Series | 206,848 | 0.3% | -82% |
| Porsche Cayman | 29,543 | 0.5% | -82% |
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UK number plate or 17-character VIN
About this data. These are MOT test results, not a measure of mechanical reliability: a car's MOT outcome reflects its condition on the day, which depends on how it has been maintained and driven as well as how it was built. Figures cover class 4 vehicles (cars and light vans), normal tests only (retests excluded), outcomes pass, fail and pass after rectification at the station; vehicles at least 2.5 years old at test. Tests from 2023-01-01 to 2024-12-30. “Compared with similar cars” means compared with the national rate for cars of the same age, mileage band and fuel. Contains public sector information licensed under the Open Government Licence v3.0. Makes and models are matched to 73 Auto's vehicle catalogue; tests that can't be matched are left out rather than guessed. See how the MOT figures are produced.