2021 BMW 8 Series · 1,635 MOT tests
2021 BMW 8 Series reliability
2021 BMW 8 Seriess fail 7.9% of first MOT tests, 33% fewer MOT fails than the average car its age and mileage, ranking 1 of 4 8 Series years (1,635 DVSA tests, 2022 to 2024).
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- first-time fail rate (all BMW 8 Seriess: 10.9%)
- 7.9%
- first-time fail rate (all BMW 8 Seriess: 10.9%)
- fails than cars of the same age and mileage
- 33% fewer
- fails than cars of the same age and mileage
- typical miles at its MOT, aged about 3
- 26,949
- typical miles at its MOT, aged about 3
- MOT tests, 2022 to 2024
- 1,635
- MOT tests, 2022 to 2024
Year on year
2021 against the years either side
- 2020 cars: 18% fewer MOT fails than the average car its age (the 2021 car does better)
- Weak spot: tyres, 6.4% of tests fail here (49% above cars of the same age and mileage).
- Plates: a 2021 car carries a 70 plate (January–February 2021), or a 21 plate (March–August 2021), or a 71 plate (September–December 2021).
Common problems
What fails on a 2021 BMW 8 Series
Fail rate by area
- Tyres6.4%
- Wheels0.8%
- Lights and electrics0.8%
- Windscreen, wipers and mirrors0.4%
- Number plates and VIN0.4%
- Exhaust, emissions and leaks0.1%
- Brakes0.1%
Average for cars of the same age and mileage
Top failures
Tyre ply or cords exposed 1.35%
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 1.16%
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 0.37%
A cut reaching the ply or cords weakens the tyre and can cause a burst, so it must be replaced.
Tyre lump from structural separation 0.37%
A tyre lump means its structure has partly failed and it could burst, so replace it immediately.
Headlamp aim set too high 0.18%
Headlamps aimed too high can dazzle other drivers, and adjusting them is usually a quick job.
Tyre tear from structural failure 0.18%
A tear in the tyre's structure means it can fail suddenly, so it must be replaced before the car is driven.
Common advisories
Tyre worn close to legal limit (2.45%) · Tyre has a shallow cut (1.22%) · Tyre slightly damaged or cracking (0.8%) · Tyre worn close to legal limit (0.43%) · Nail in tyre, monitor (0.37%) · Propshaft coupling slightly deteriorated (0.37%)
Other years
Every BMW 8 Series year
The full picture: BMW 8 Series reliability. Before you pay for any BMW 8 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 2021 BMW 8 Series reliable?
2021 BMW 8 Seriess fail 7.9% of first MOT tests, 33% fewer MOT fails than the average car its age and mileage, ranking 1 of 4 8 Series years (1,635 DVSA tests, 2022 to 2024).
What fails on a 2021 BMW 8 Series MOT?
Most often tyre ply or cords exposed (1.35% of tests), tyre bulge from structural failure (1.16% of tests), tyre cut reaching ply or cords (0.37% of tests).
How many miles should a 2021 BMW 8 Series have done?
At its MOT aged about 3, a typical 2021 BMW 8 Series shows 26,949 miles. Much higher or lower is worth asking about.
What plate is a 2021 car?
A car first registered in 2021 carries a 70 plate (January–February 2021), or a 21 plate (March–August 2021), or a 71 plate (September–December 2021).
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