2015 BMW 4 Series · 73,376 MOT tests
2015 BMW 4 Series reliability
2015 BMW 4 Seriess fail 15.8% of first MOT tests, 39% fewer MOT fails than the average car its age and mileage, ranking 2 of 9 4 Series years (73,376 DVSA tests, 2022 to 2024).
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- first-time fail rate (all BMW 4 Seriess: 14.1%)
- 15.8%
- first-time fail rate (all BMW 4 Seriess: 14.1%)
- fails than cars of the same age and mileage
- 39% fewer
- fails than cars of the same age and mileage
- typical miles at its MOT, aged about 8
- 71,340
- typical miles at its MOT, aged about 8
- MOT tests, 2022 to 2024
- 73,376
- MOT tests, 2022 to 2024
Year on year
2015 against the years either side
- 2014 cars: 37% fewer MOT fails than the average car its age (the 2015 car does better)
- 2016 cars: 37% fewer MOT fails than the average car its age (the 2015 car does better)
- Weak spot: tyres, 7.9% of tests fail here (18% above cars of the same age and mileage).
- Strong point: suspension, 73% 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 BMW 4 Series
Fail rate by area
- Tyres7.9%
- Lights and electrics3.3%
- Brakes2.5%
- Windscreen, wipers and mirrors2%
- Suspension1.9%
- Wheels0.8%
- Number plates and VIN0.6%
Average for cars of the same age and mileage
Top failures
Tyre ply or cords exposed 1.82%
Exposed ply or cords can let the tyre fail suddenly, so the tyre must be replaced before the car is driven.
Tyre tread below 1.6mm 1.72%
Tread below 1.6mm is illegal and reduces grip in wet conditions, so the tyre must be replaced.
Tyre bulge from structural failure 1.4%
A bulge means the tyre's structure has failed and it could burst suddenly, so it must be replaced at once.
Tyre cut reaching ply or cords 1.3%
A cut reaching the ply or cords weakens the tyre and can cause a burst, so it must be replaced.
Brake pads worn below 1.5mm 0.95%
Pads worn below 1.5mm lose stopping power and can damage discs, so replacement is needed before the car is driven.
Windscreen washer fluid insufficient 0.88%
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 (13.01%) · Brake pads wearing thin (5.92%) · Brake disc pitted or scored (5.65%) · Slight play in steering rack joints (3.3%) · Suspension arm pin/bush showing wear (2.05%) · Tyre worn close to legal limit (1.95%)
Other years
Every BMW 4 Series year
The full picture: BMW 4 Series reliability. Before you pay for any BMW 4 Series, 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 BMW 4 Series reliable?
2015 BMW 4 Seriess fail 15.8% of first MOT tests, 39% fewer MOT fails than the average car its age and mileage, ranking 2 of 9 4 Series years (73,376 DVSA tests, 2022 to 2024).
What fails on a 2015 BMW 4 Series MOT?
Most often tyre ply or cords exposed (1.82% of tests), tyre tread below 1.6mm (1.72% of tests), tyre bulge from structural failure (1.4% of tests).
How many miles should a 2015 BMW 4 Series have done?
At its MOT aged about 8, a typical 2015 BMW 4 Series shows 71,340 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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