2020 BMW Z4 · 3,053 MOT tests
2020 BMW Z4 reliability
2020 BMW Z4s fail 7.6% of first MOT tests, 27% fewer MOT fails than the average car its age and mileage, ranking 11 of 16 Z4 years (3,053 DVSA tests, 2022 to 2024).
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- first-time fail rate (all BMW Z4s: 22.2%)
- 7.6%
- first-time fail rate (all BMW Z4s: 22.2%)
- fails than cars of the same age and mileage
- 27% fewer
- fails than cars of the same age and mileage
- typical miles at its MOT, aged about 3
- 19,342
- typical miles at its MOT, aged about 3
- MOT tests, 2022 to 2024
- 3,053
- MOT tests, 2022 to 2024
Year on year
2020 against the years either side
- 2019 cars: 23% fewer MOT fails than the average car its age (the 2020 car does better)
- 2021 cars: 45% fewer MOT fails than the average car its age (the 2020 car does worse)
- Weak spot: tyres, 5.5% of tests fail here (50% above cars of the same age and mileage).
- Strong point: lights and electrics, 54% fewer fails than comparable cars.
- Plates: a 2020 car carries a 69 plate (January–February 2020), or a 20 plate (March–August 2020), or a 70 plate (September–December 2020).
Common problems
What fails on a 2020 BMW Z4
Fail rate by area
- Tyres5.5%
- Lights and electrics1%
- Windscreen, wipers and mirrors0.6%
- Suspension0.3%
- Number plates and VIN0.2%
- Exhaust, emissions and leaks0.2%
- Wheels0.1%
Average for cars of the same age and mileage
Top failures
Tyre ply or cords exposed 1.83%
Exposed ply or cords can let the tyre fail suddenly, so the tyre must be replaced before the car is driven.
Tyre cut reaching ply or cords 0.98%
A cut reaching the ply or cords weakens the tyre and can cause a burst, so it must be replaced.
Tyre tread below 1.6mm 0.39%
Tread below 1.6mm is illegal and reduces grip in wet conditions, so the tyre must be replaced.
Headlamp aim set too high 0.29%
Headlamps aimed too high can dazzle other drivers, and adjusting them is usually a quick job.
Number plate does not meet standards 0.23%
The plate does not meet legal specifications, so it must be replaced with a compliant one before the car is driven.
Anti-roll bar dust cover unsealed 0.13%
A damaged dust cover lets dirt into the joint, causing wear that may later need the joint replaced.
Common advisories
Tyre worn close to legal limit (6.32%) · Tyre slightly damaged or cracking (1.97%) · Nail in tyre, monitor (1.31%) · Tyre has a shallow cut (1.02%) · Tyre worn close to legal limit (1.02%) · Tyre showing slight damage (0.36%)
Other years
Every BMW Z4 year
The full picture: BMW Z4 reliability. Before you pay for any BMW Z4, 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 2020 BMW Z4 reliable?
2020 BMW Z4s fail 7.6% of first MOT tests, 27% fewer MOT fails than the average car its age and mileage, ranking 11 of 16 Z4 years (3,053 DVSA tests, 2022 to 2024).
What fails on a 2020 BMW Z4 MOT?
Most often tyre ply or cords exposed (1.83% of tests), tyre cut reaching ply or cords (0.98% of tests), tyre tread below 1.6mm (0.39% of tests).
How many miles should a 2020 BMW Z4 have done?
At its MOT aged about 3, a typical 2020 BMW Z4 shows 19,342 miles. Much higher or lower is worth asking about.
What plate is a 2020 car?
A car first registered in 2020 carries a 69 plate (January–February 2020), or a 20 plate (March–August 2020), or a 70 plate (September–December 2020).
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