MOT performance
2015 Smart Forfour: MOT pass rate and common failures
Of 11,042 MOT tests on 2015-registered Smart Forfours in 2023–2024 (on average 7.9 years old at test, median 46,044 miles), 69.0% passed first time, 4.5 points lower than the Smart Forfour overall. Allowing for age, mileage and fuel, 2015 Smart Forfours failed 32% more often than comparable cars.
11,042 MOT tests on 5,534 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 |
|---|---|---|
| First-time pass rate | 69.0% | ±0.9 pts (95%), n = 11,042 |
| All Smart Forfours | 73.5% | n = 48,547 |
| Failures vs similar cars | 1.32× | same age, mileage and fuel = 1.00 |
| Tests with a dangerous defect | 8.6% | n = 11,042 |
| Average age at test | 7.9 years | n = 11,042 |
Where 2015 Smart Forfours fail
| Area | Tests failed on it | vs similar cars |
|---|---|---|
| Suspension | 9.8% | +59% |
| Lights, reflectors and electrical | 9.0% | +26% |
| Tyres | 8.6% | +47% |
| Driver's view of the road | 6.5% | +64% |
| Noise, emissions and leaks | 5.9% | +203% |
| Brakes | 3.7% | -19% |
| Body, chassis and structure | 1.9% | +18% |
| Steering | 0.5% | -61% |
| Seat belts and airbags | 0.4% | -8% |
| Registration plates and VIN | 0.2% | +17% |
| Road wheels | 0.1% | -33% |
Most common failure items
| Item | Area | Share of tests |
|---|---|---|
| Stop lamp: not working | Lights, reflectors and electrical | 5.39% |
| Ball joint: ball joint excessively worn | Suspension | 4.95% |
| Tread depth: tread depth below requirements of 1.6mm | Tyres | 3.93% |
| Catalyst emissions: Lambda reading after 2nd fast idle outside specified limits | Noise, emissions and leaks | 3.31% |
| Wipers: does not clear the windscreen effectively | Driver's view of the road | 3.04% |
Check a specific 2015 Smart Forfour
Enter a UK registration to see that car's own MOT history and what it is likely to cost to own. Your first check is free and shows the vehicle summary and its headline ownership cost. The category-by-category breakdown is part of a paid check.
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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.