DS DS4 2015: MOT failure rate for its age

30.3% of 4,948 MOT tests of the DS DS4 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 106.7 (95% CI 101.3–112.1; 100 = normal for this model at that age): the 2015 DS DS4 fails more often than other build years of the same model at the same age.

DS DS4 built in 2015 at a glance
Measure	Value	Unit	Compared with	Years	Tests
Failed first time	30.3	%	all ages tested	2019–2024	4948
Index against this model at the same age (95% CI 101.3–112.1)	106.7	index	100 = normal for this model at that age	2019–2024	4948
Rank among this model's 4 build years	4	of 4	1 = fails least for its age	2019–2024	4948
Tested in 2024	802	tests	median 65,651 miles	2024	802

Built 2015 against DS DS4 normal for the age: first-time MOT failure share at each age, age 4: 22.5% vs 20.8%; age 5: 25.7% vs 23.7%; age 6: 27.4% vs 27%; age 7: 32.3% vs 29.8%; age 8: 37.5% vs 33.9%; age 9: 36.5% vs 35.3%. Axis from 0% to 40%. DVSA MOT bulk data, 2019–2024.

Check a 2015 DS DS4 by registration · All DS DS4 MOT statistics · Download the build-year table (CSV)

Data release dvsa-2024-v2 (24 Sep 2026) · page updated 30 Sep 2026 · full dataset (v5).

How does the 2015 DS DS4 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.

DS DS4 built 2015: first-time MOT failure by age, against the model's normal rate at that age (2019–2024)
Age	Tests	Failed, %	95% interval	Normal for this model at that age, %	Index (100 = normal)
4	837	22.5	19.8–25.4	20.8	107.7
5	805	25.7	22.8–28.8	23.7	108.5
6	831	27.4	24.5–30.6	27	101.4
7	839	32.3	29.2–35.5	29.8	108.4
8	834	37.5	34.3–40.9	33.9	110.8
9	802	36.5	33.3–39.9	35.3	103.5

Source: DVSA MOT bulk data · Window: 2019–2024 · n = 4,948 (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 DS DS4?

The most common failure group on cars built in 2015 is lamps, reflectors and electrical equipment: 16 items per 100 first tests, against 12.3 across all build years of the DS DS4. These counts are not age-adjusted: cars built in 2015 were tested at ages 4 to 9.

Failure items per 100 first tests, DS DS4 built 2015 against the DS DS4 in all build years (2019–2024, not age-adjusted)
Failure group	Built 2015, per 100	All build years, per 100	Items
Lamps, reflectors and electrical equipment	16	12.3	791
Tyres	11.6	9.9	573
Body, chassis, structure	9.6	6.7	476
Visibility	8.7	7.1	429
Brakes	8.1	6.6	400

Source: DVSA MOT bulk data · Window: 2019–2024 · n = 4,948 (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 4 published build years of the DS DS4, 2015 ranks 4 (1 = fails least for its age). 2016: index 100.6.

DS DS4 build years: index against the model at the same age (2019–2024)
Build year	Index (100 = normal)	95% interval	Verdict	Tests
2015	106.7	101.3–112.1	worse	4,948
2016	100.6	97.2–103.9	no different	14,040
2017	96.3	90.7–101.9	no different	5,282
2018	104.0	92.7–115.2	no different (rough estimate)	1,552

Source: DVSA MOT bulk data · Window: 2019–2024 · n = 25,822 (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). DS DS4 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/ds-ds4/2015/

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

DS DS4 2016 · DS DS4 2017 · DS DS4 2018 · DS DS4 by postcode area · DS DS4 body, chassis and structure failures · DS DS4 brakes failures · DS DS4 vehicle identification failures · DS DS4 lamps, reflectors and electrics failures · DS DS4 noise, emissions and leaks failures · DS DS4 road wheels failures · DS DS4 seat belts and airbags failures · DS DS4 steering failures · DS DS4 suspension failures · DS DS4 tyres failures · DS DS4 visibility failures