2015 Smart Forfour · 18,727 MOT tests
2015 Smart Forfour reliability
2015 Smart Forfours fail 29.3% of first MOT tests, 41% more MOT fails than the average car its age and mileage, ranking 6 of 8 Forfour years (18,727 DVSA tests, 2022 to 2024).
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- first-time fail rate (all Smart Forfours: 25.6%)
- 29.3%
- first-time fail rate (all Smart Forfours: 25.6%)
- fails than cars of the same age and mileage
- 41% more
- fails than cars of the same age and mileage
- typical miles at its MOT, aged about 8
- 43,953
- typical miles at its MOT, aged about 8
- MOT tests, 2022 to 2024
- 18,727
- MOT tests, 2022 to 2024
Year on year
2015 against the years either side
- 2007 cars: 5% fewer MOT fails than the average car its age (the 2015 car does worse)
- 2016 cars: 44% more MOT fails than the average car its age (the 2015 car does better)
- Weak spot: exhaust, emissions and leaks, 5.1% of tests fail here (245% above cars of the same age and mileage).
- Strong point: brakes, 6% fewer fails than comparable cars.
- Plates: a 2015 car carries a 64 plate (January–February 2015), or a 15 plate (March–August 2015), or a 65 plate (September–December 2015).
Common problems
What fails on a 2015 Smart Forfour
Fail rate by area
- Suspension8.6%
- Lights and electrics8.6%
- Tyres8.1%
- Windscreen, wipers and mirrors6.3%
- Exhaust, emissions and leaks5.1%
- Brakes3.8%
- Body, chassis and structure1.8%
Average for cars of the same age and mileage
Top failures
Stop lamp not working 4.42%
A failed stop lamp means drivers behind cannot see when you brake, a safety risk that must be fixed.
Suspension ball joint excessively worn 3.83%
A worn ball joint can fail and cause loss of steering control, so it must be replaced promptly.
Tyre tread below 1.6mm 3.21%
Tread below 1.6mm is illegal and reduces grip in wet conditions, so the tyre must be replaced.
Wiper blade not clearing windscreen 2.93%
Wipers that do not clear the windscreen reduce visibility in rain, which is a safety risk, so replace them.
Lambda reading outside specified limits 2.37%
An out-of-range lambda reading suggests poor fuel mixture or a failing catalytic converter, so diagnosis is needed.
Windscreen washer fluid insufficient 1.98%
Washers are not supplying enough liquid, so the windscreen cannot be cleared properly, which is a safety issue.
Common advisories
Tyre worn close to legal limit (15.64%) · Brake disc pitted or scored (9.16%) · Tyre slightly damaged or cracking (8.48%) · Brake pads wearing thin (5.55%) · Brake discs showing some wear (3.67%) · Tyre worn close to legal limit (1.94%)
Other years
Every Smart Forfour year
The full picture: Smart Forfour reliability. Before you pay for any Smart Forfour, a Full Check (£9.99) shows finance, stolen and write-off records the MOT can't.
Source: DVSA anonymised MOT results, 2022 to 2024, class 4 normal tests.
Is a 2015 Smart Forfour reliable?
2015 Smart Forfours fail 29.3% of first MOT tests, 41% more MOT fails than the average car its age and mileage, ranking 6 of 8 Forfour years (18,727 DVSA tests, 2022 to 2024).
What fails on a 2015 Smart Forfour MOT?
Most often stop lamp not working (4.42% of tests), suspension ball joint excessively worn (3.83% of tests), tyre tread below 1.6mm (3.21% of tests).
How many miles should a 2015 Smart Forfour have done?
At its MOT aged about 8, a typical 2015 Smart Forfour shows 43,953 miles. Much higher or lower is worth asking about.
What plate is a 2015 car?
A car first registered in 2015 carries a 64 plate (January–February 2015), or a 15 plate (March–August 2015), or a 65 plate (September–December 2015).
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