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B21 AKS

2021 BMW Z4

White Diesel 1995cc
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MOT Status

Valid
Expires22 Jun 2027
Tests26 (23 pass, 3 fail)
Pass rate88.5%

Mileage

37,257 mi
Last recorded37,257 miles
Recorded on23 Jun 2026
Typical for 2021 BMW Z420,792 mi

Significantly above average — investigate

4 checks still locked for this BMW
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Finance
Write-off
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Vehicle Details

RegistrationB21 AKS
MakeBMW
ModelZ4
Year2021
ColourWhite
Fuel typeDiesel
Engine1,995cc

All premium checks include

50+ data points
Finance Check (Experian) Insurance Write-off Salvage Auction Stolen Check Previous Owners Ex-Taxi, Police, NHS Mileage Anomaly Import / Export Scrapped Check Plate Changes

MOT History

23 pass 3 fail
Pass 23 Jun 2026 37,257 miles
Pass 5 Mar 2026 36,068 miles
Pass 19 Aug 2025 68,896 miles
Pass 13 Mar 2025 29,177 miles
Pass 4 Feb 2025 73,700 miles

Offside Front Tyre worn close to legal limit/worn on edge (5.2.3 (e))

Fail 3 Feb 2025 73,662 miles

Nearside Rear Brake pad(s) less than 1.5 mm thick (1.1.13 (a) (ii)) DANGEROUS

Offside Front Brake pad(s) less than 1.5 mm thick (1.1.13 (a) (ii)) DANGEROUS

Nearside Front Brake pad(s) wearing thin (1.1.13 (a) (ii))

Offside Front Tyre worn close to legal limit/worn on edge (5.2.3 (e))

Pass 9 Jan 2025 68,805 miles

Oil leak, but not excessive (8.4.1 (a) (i))

Pass 8 Mar 2024 22,694 miles
Pass 7 Feb 2024 61,039 miles

Front Registration plate deteriorated but not likely to be misread (0.1 (b))

Fail 7 Feb 2024 61,038 miles

Front Windscreen washer not working (3.5 (a))

Front Windscreen wiper not working (3.4 (a))

Front Registration plate deteriorated but not likely to be misread (0.1 (b))

Pass 8 Jan 2024 68,734 miles

Oil leak, but not excessive (8.4.1 (a) (i))

Pass 4 Feb 2023 48,478 miles

Items removed from driver's view prior to test ()

Nearside Rear Tyre worn close to legal limit/worn on edge (5.2.3 (e))

Offside Front Tyre slightly damaged/cracking or perishing Cracking inner sidewall (5.2.3 (d) (ii))

Offside Front Tyre worn close to legal limit/worn on edge Edges worn smooth (5.2.3 (e))

Pass 30 Jan 2023 67,559 miles

Nearside Front Road wheel slightly distorted (5.2.2 (c) (i))

slight corrosion on n/s/f brake disc

slight corrosion on n/s/r brake disc inner surface

slight corrosion on o/s/f brake disc

Fail 18 Jan 2023 67,529 miles

Offside Rear Road wheel fractured (5.2.2 (a)) DANGEROUS

Nearside Front Road wheel slightly distorted (5.2.2 (c) (i))

slight corrosion on n/s/f brake disc

slight corrosion on n/s/r brake disc inner surface

slight corrosion on o/s/f brake disc

Pass 8 Feb 2022 34,746 miles
Pass 19 Jan 2022 65,465 miles

Front Brake disc worn, pitted or scored, but not seriously weakened (1.1.14 (a) (ii))

Nearside Front Tyre slightly damaged/cracking or perishing (5.2.3 (d) (ii))

Under-trays fitted obscuring some underside components Engine covers fitted obscuring some components in the engine bay

Pass 12 May 2021 31,780 miles
Pass 20 Jan 2021 63,653 miles

Offside Front Tyre worn close to legal limit/worn on edge 3mm (5.2.3 (e))

Pass 20 May 2020 29,541 miles
Pass 25 Jun 2019 63,521 miles
Pass 8 May 2019 25,013 miles
Pass 9 May 2018 20,265 miles
Pass 9 Feb 2018 62,802 miles
Pass 16 May 2017 14,694 miles
Pass 19 Sep 2016 49,876 miles
Pass 2 Sep 2015 32,120 miles

all four road wheel rims have slight damage to outer edges

nearside front tyre inner and outer edges wearing low and tyre deteriorating

offside front tyre valve cracking

How Reliable is the BMW Z4?

Based on 699,787 MOT tests across 46,739 vehicles.

79.5%
Pass Rate
3,672
Miles/Year
23
Year Lifespan
46,739
On UK Roads

Top MOT Failure Points

Tyre tread depth below requirements of 1.6mm 14,961
coil spring broken 6,689
Tyre has ply or cords exposed 5,893
Brake pipe excessively corroded 5,843
coil spring fractured 5,828
Full BMW Z4 reliability report

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B21 AKS is a 2021 BMW Z4 in White with a 1,995cc diesel engine. This vehicle has been through 26 MOT tests with a personal pass rate of 88.5%.

Across all 2021 BMW Z4 models, the average MOT pass rate is 91.7% with a typical mileage of 20,792 miles. This particular vehicle has a lower pass rate than the average for its year, which may indicate maintenance issues worth investigating.

The most common reason a BMW Z4 fails its MOT is tyre tread depth below requirements of 1.6mm, accounting for 14,961 recorded failures. If you're considering buying B21 AKS, it's worth having these areas checked by a mechanic before committing.

The BMW Z4 typically stays on UK roads for around 23 years. At 5 years old, this BMW Z4 is still in the earlier part of its expected life.

Frequently Asked Questions

How do I check the history of B21 AKS?

You can check the full history of B21 AKS by running a full vehicle check. This shows you finance, stolen, write-off, MOT history, mileage records and more.

What year was B21 AKS registered?

B21 AKS is a 2021 BMW Z4, first registered on 10 March 2021.

Is B21 AKS safe to buy?

The MOT history for B21 AKS shows 26 tests with a 88.5% pass rate. To check for outstanding finance, stolen markers, write-off history and mileage discrepancies, run a full vehicle check.

Does B21 AKS have outstanding finance?

Finance checks require a premium vehicle report. This checks against all major UK finance providers to see if there is any outstanding finance on B21 AKS. If you buy a car with outstanding finance, the finance company can repossess it.

No warranty or guarantee of accuracy is provided for any free data on this page. The data guarantee applies only to information obtained through the purchase of a full check.