2015 BMW X4 MOT pass rate: 82.3% (6,171 tests)
Is the 2015 X4 getting worse?
Pass rate of 2015-registered cars across recent test years:
Scroll horizontally to read every trend column.
| Test year | Pass rate | Pass-rate bar |
|---|---|---|
| 2023 | 82.5% +1.9 vs same-age |
82.5% visual scale |
| 2024 | 83.3% +4.8 vs same-age |
83.3% visual scale |
| 2025 | 81.0% +4.0 vs same-age |
81.0% visual scale |
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 2015 X4
Scroll horizontally to read every failure column.
| # | System | Defects recorded | Share |
|---|---|---|---|
| 1 | Tyres | 519 | 26.5% |
| 2 | Suspension | 476 | 24.3% |
| 3 | Lamps, reflectors and electrical equipment | 305 | 15.5% |
| 4 | Brakes | 224 | 11.4% |
| 5 | Visibility | 174 | 8.9% |
| 6 | Noise, emissions and leaks | 85 | 4.3% |
All X4 years compared
Scroll horizontally to compare every registration-year column.
| Registration year | Tests | Pass rate | Vs same-age | Median mileage |
|---|---|---|---|---|
| 2014 | 2,210 | 82.9% | +7.0 pts | 83,999 |
| 2015 (this page) | 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 | 3,719 | 90.3% | +0.4 pts | 32,738 |
- Free MOT history checkThe exact car’s failures, advisories and mileage trail — sellers can’t edit it
FAQs
Is a 2015 BMW X4 reliable?
2015-registered examples passed 82.3% of their MOT tests (6,171 tests, 2023–2025), +3.6 points versus all UK cars registered in the same year. At roughly 11 years old with a median 79,179 miles, condition now varies car by car — always check the individual MOT history.
What mileage is too high for a 2015 X4?
The median tested example shows 79,179 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.
Before you agree to the work
A fault or an advisory is a quote waiting to happen. These pages set out what a garage has to tell you, what a comparable written quote should include, and what you can do if the bill is not what you agreed.
- When a repair costs more than the car — what a comparable quote should include, plus any verified UK figures we have sourced.
- Estimates, quotes and extra work — what a price has to cover, and when a garage may charge more than it first said.
- What a diagnostic test costs — what the fee should include, and when it should come off the repair.
- Tools — when to buy and when to skip — how to choose a diagnostic tool, and when a garage visit is cheaper than owning one.
- Choosing a garage you can check — what to verify before you hand over the keys.
- Your rights after a car repair — what to do when the work is not right, and how to put it in writing.
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 the Open Government Licence v3.0.