2018 BMW 4 Series · 62,847 MOT tests
2018 BMW 4 Series reliability
2018 BMW 4 Seriess fail 11.9% of first MOT tests, 25% fewer MOT fails than the average car its age and mileage, ranking 7 of 9 4 Series years (62,847 DVSA tests, 2022 to 2024).
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- first-time fail rate (all BMW 4 Seriess: 14.1%)
- 11.9%
- first-time fail rate (all BMW 4 Seriess: 14.1%)
- fails than cars of the same age and mileage
- 25% fewer
- fails than cars of the same age and mileage
- typical miles at its MOT, aged about 5
- 41,008
- typical miles at its MOT, aged about 5
- MOT tests, 2022 to 2024
- 62,847
- MOT tests, 2022 to 2024
Year on year
2018 against the years either side
- 2017 cars: 32% fewer MOT fails than the average car its age (the 2018 car does worse)
- 2019 cars: 14% fewer MOT fails than the average car its age (the 2018 car does better)
- Weak spot: tyres, 7.1% of tests fail here (36% above cars of the same age and mileage).
- Strong point: windscreen, wipers and mirrors, 63% fewer fails than comparable cars.
- Plates: a 2018 car carries a 67 plate (January–February 2018), or a 18 plate (March–August 2018), or a 68 plate (September–December 2018).
Common problems
What fails on a 2018 BMW 4 Series
Fail rate by area
- Tyres7.1%
- Lights and electrics1.8%
- Brakes1.5%
- Windscreen, wipers and mirrors1.2%
- Wheels0.7%
- Suspension0.5%
- Number plates and VIN0.4%
Average for cars of the same age and mileage
Top failures
Tyre cut reaching ply or cords 1.57%
A cut reaching the ply or cords weakens the tyre and can cause a burst, so it must be replaced.
Tyre ply or cords exposed 1.56%
Exposed ply or cords can let the tyre fail suddenly, so the tyre must be replaced before the car is driven.
Tyre bulge from structural failure 1.36%
A bulge means the tyre's structure has failed and it could burst suddenly, so it must be replaced at once.
Tyre tread below 1.6mm 1.15%
Tread below 1.6mm is illegal and reduces grip in wet conditions, so the tyre must be replaced.
Brake pads worn below 1.5mm 0.73%
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 0.54%
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 (11.8%) · Brake pads wearing thin (5.75%) · Brake disc pitted or scored (2.91%) · Nail in tyre, monitor (1.8%) · Tyre worn close to legal limit (1.69%) · Tyre has a shallow cut (1.36%)
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 2018 BMW 4 Series reliable?
2018 BMW 4 Seriess fail 11.9% of first MOT tests, 25% fewer MOT fails than the average car its age and mileage, ranking 7 of 9 4 Series years (62,847 DVSA tests, 2022 to 2024).
What fails on a 2018 BMW 4 Series MOT?
Most often tyre cut reaching ply or cords (1.57% of tests), tyre ply or cords exposed (1.56% of tests), tyre bulge from structural failure (1.36% of tests).
How many miles should a 2018 BMW 4 Series have done?
At its MOT aged about 5, a typical 2018 BMW 4 Series shows 41,008 miles. Much higher or lower is worth asking about.
What plate is a 2018 car?
A car first registered in 2018 carries a 67 plate (January–February 2018), or a 18 plate (March–August 2018), or a 68 plate (September–December 2018).
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