BMW X4 2015: MOT failure rate for its age
18.1% of 12,618 MOT tests of the BMW X4 first registered in 2015 failed at the first attempt (2019–2024; retests excluded). Against this model's own normal rate at the same ages the index is 108.5 (95% CI 104.1–113.0; 100 = normal for this model at that age): the 2015 BMW X4 fails more often than other build years of the same model at the same age.
| Measure | Value | Unit | Compared with | Years | Tests |
|---|---|---|---|---|---|
| Failed first time | 18.1 | % | all ages tested | 2019–2024 | 12618 |
| Index against this model at the same age (95% CI 104.1–113.0) | 108.5 | index | 100 = normal for this model at that age | 2019–2024 | 12618 |
| Rank among this model's 7 build years | 7 | of 7 | 1 = fails least for its age | 2019–2024 | 12618 |
| Tested in 2024 | 2065 | tests | median 79,495 miles | 2024 | 2065 |
Data release dvsa-2024-v2 (24 Sep 2026) · page updated 30 Sep 2026 · full dataset (v5).
How does the 2015 BMW X4 fail at each age?
Cars built in 2015 were tested at ages 4 to 9 between 2019 and 2024. Each row compares their first-time failure share with what this model normally shows at that age, after allowing for the overall failure level of each test year.
| Age | Tests | Failed, % | 95% interval | Normal for this model at that age, % | Index (100 = normal) |
|---|---|---|---|---|---|
| 4 | 2,175 | 14 | 12.6–15.5 | 13 | 107.6 |
| 5 | 2,038 | 16.5 | 14.9–18.2 | 13.8 | 119.8 |
| 6 | 2,131 | 18 | 16.4–19.7 | 16.3 | 110.7 |
| 7 | 2,118 | 18.8 | 17.2–20.6 | 18.2 | 103.4 |
| 8 | 2,091 | 21.2 | 19.5–23 | 19.4 | 109.7 |
| 9 | 2,065 | 20.1 | 18.4–21.9 | 19.4 | 103.4 |
Source: DVSA MOT bulk data · Window: 2019–2024 · n = 12,618 (initial tests) · Method: normal rate = this model's first-time failure share at that age across its build years (cells of 400+ tests), adjusted for each test year's overall level; cells of 30+ tests, under 500 marked rough · Updated: 30 Sep 2026 · Release: dvsa-2024-v2 · CSV
What fails most on the 2015 BMW X4?
The most common failure group on cars built in 2015 is tyres: 8.5 items per 100 first tests, against 8.1 across all build years of the BMW X4. These counts are not age-adjusted: cars built in 2015 were tested at ages 4 to 9.
| Failure group | Built 2015, per 100 | All build years, per 100 | Items |
|---|---|---|---|
| Tyres | 8.5 | 8.1 | 1,072 |
| Suspension | 5.4 | 2.5 | 687 |
| Visibility | 5 | 4.9 | 633 |
| Brakes | 3.9 | 2.9 | 491 |
| Lamps, reflectors and electrical equipment | 3.3 | 2.2 | 422 |
Source: DVSA MOT bulk data · Window: 2019–2024 · n = 12,618 (initial tests of this build year) · Method: failure items grouped by DVSA's top-level defect groups, per 100 initial tests; groups with 30+ items · Updated: 30 Sep 2026 · Release: dvsa-2024-v2 · CSV
How does 2015 compare with the years around it?
Among the 7 published build years of the BMW X4, 2015 ranks 7 (1 = fails least for its age). 2014: index 105.5. 2016: index 107.2.
| Build year | Index (100 = normal) | 95% interval | Verdict | Tests |
|---|---|---|---|---|
| 2014 | 105.5 | 98.4–112.6 | no different | 4,510 |
| 2015 | 108.5 | 104.1–113.0 | worse | 12,618 |
| 2016 | 107.2 | 103.1–111.2 | worse | 16,606 |
| 2017 | 95.7 | 90.9–100.6 | no different | 11,340 |
| 2018 | 90.9 | 85.2–96.5 | better | 8,486 |
| 2019 | 92.8 | 87.9–97.8 | better | 12,332 |
| 2020 | 107.7 | 97.8–117.6 | no different (rough estimate) | 3,848 |
Source: DVSA MOT bulk data · Window: 2019–2024 · n = 69,740 (initial tests) · Method: observed failures against those expected for the same model at the same ages, test-year level adjusted; verdict follows the printed one-decimal bound · Updated: 30 Sep 2026 · Release: dvsa-2024-v2 · CSV
How to cite this page
MOT Risk Index (2026). BMW X4 2015 MOT statistics (data release dvsa-2024-v2; full dataset motriskindex-families-2024-v5, DOI 10.5281/zenodo.22975051), updated 30 September 2026. motriskindex.co.uk/cars/bmw-x4/2015/
How every figure is calculated: methodology. Age, test year and build year are tied together (age = test year − build year), so the test-year level is taken as observed, not estimated.
Other pages for this model
BMW X4 2014 · BMW X4 2016 · BMW X4 2017 · BMW X4 2018 · BMW X4 2019 · BMW X4 2020 · BMW X4 in Norway · BMW X4 in Finland · BMW X4 in the Netherlands · BMW X4 by postcode area · BMW X4 body, chassis and structure failures · BMW X4 brakes failures · BMW X4 vehicle identification failures · BMW X4 lamps, reflectors and electrics failures · BMW X4 noise, emissions and leaks failures · BMW X4 road wheels failures · BMW X4 seat belts and airbags failures · BMW X4 steering failures · BMW X4 suspension failures · BMW X4 tyres failures · BMW X4 visibility failures