2020 BMW X4 MOT pass rate: 90.3% (3,719 tests)

2020-registered BMW X4s passed 90.3% of 3,719 MOT tests in 2023–2025 — broadly in line with same-age cars (89.9%).

90.3%Pass rate, 2020 cars

100.4Age-adjusted index (100 = average)

3,719Tests analysed

32,738 miMedian mileage at test

91.2% / 89.9%Petrol vs diesel pass rate

Is the 2020 X4 getting worse?

Pass rate of 2020-registered cars across recent test years:

Test year	Pass rate
2023	89.1% -1.7 vs same-age
2024	91.0% +1.0 vs same-age
2025	91.0% +2.1 vs same-age

The raw rate normally falls as cars age. The “vs same-age” figure compares this cohort with all UK cars registered in the same year, so normal ageing is not mistaken for a bad model year.

What fails on a 2020 X4

#	System	Defects recorded	Share
1	Tyres	297	54.2%
2	Visibility	72	13.1%
3	Noise, emissions and leaks	43	7.8%
4	Lamps, reflectors and electrical equipment	42	7.7%
5	Brakes	38	6.9%
6	Identification of the vehicle	20	3.6%

All X4 years compared

Registration year	Tests	Pass rate	Vs same-age	Median mileage
2014	2,210	82.9%	+7.0 pts	83,999
2015	6,171	82.3%	+3.6 pts	79,179
2016	8,049	83.6%	+2.3 pts	69,804
2017	6,346	85.4%	+1.4 pts	59,762
2018	6,038	88.9%	+2.6 pts	52,456
2019	10,727	90.1%	+1.7 pts	41,613
2020 (this page)	3,719	90.3%	+0.4 pts	32,738

Buying a 2020 X4? Two checks first

Free MOT history checkThe exact car’s failures, advisories and mileage trail — sellers can’t edit it
Topdon OBD2 scannersTopdon diagnostic scanners with full-system readouts
XTOOL diagnostic toolsXTOOL code readers for petrol and diesel cars
Autel UK testersAutel professional-grade diagnostic testers

FAQs

Is a 2020 BMW X4 reliable?

2020-registered examples passed 90.3% of their MOT tests (3,719 tests, 2023–2025), +0.4 points versus all UK cars registered in the same year. At roughly 6 years old with a median 32,738 miles, condition now varies car by car — always check the individual MOT history.

What mileage is too high for a 2020 X4?

The median tested example shows 32,738 miles. Anything far beyond that isn't automatically bad — a motorway-mile car with consistent service records often beats a low-mileage school-run car — but price accordingly and scrutinise the mileage trail for gaps or drops.

Source: DVSA Anonymised MOT tests and results, 2023–2025 extracts (96 million Class 4 initial tests; retests excluded). Only vehicles old enough for a routine first MOT are included. Age-adjusted figures compare the model-year cohort with all vehicles of the same registration year tested in the same calendar year. Contains public sector information licensed under OGL v3.0.