DS DS7 2018: MOT failure rate for its age

18.3% of 3,817 MOT tests of the DS DS7 first registered in 2018 failed at the first attempt (2019–2024; retests excluded). Against this model's own normal rate at the same ages the index is 107.7 (95% CI 99.7–115.7; 100 = normal for this model at that age): the 2018 build year is no different from other years of the same model at the same age. This is a rough estimate from a smaller sample.

DS DS7 built in 2018 at a glance
Measure	Value	Unit	Compared with	Years	Tests
Failed first time	18.3	%	all ages tested	2019–2024	3817
Index against this model at the same age (95% CI 99.7–115.7)	107.7	index	100 = normal for this model at that age	2019–2024	3817
Rank among this model's 3 build years	3	of 3	1 = fails least for its age	2019–2024	3817
Tested in 2024	953	tests	median 48,700 miles	2024	953

Built 2018 against DS DS7 normal for the age: first-time MOT failure share at each age, age 3: 14.7% vs 13.9%; age 4: 16.6% vs 14.2%; age 5: 19.7% vs 18.5%; age 6: 22% vs 21.3%. Axis from 0% to 30%. DVSA MOT bulk data, 2019–2024.

Check a 2018 DS DS7 by registration · All DS DS7 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 2018 DS DS7 fail at each age?

Cars built in 2018 were tested at ages 3 to 6 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 DS7 built 2018: 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)
3	937	14.7	12.6–17.1	13.9	106
4	964	16.6	14.4–19.1	14.2	116.7
5	963	19.7	17.3–22.4	18.5	106.9
6	953	22	19.5–24.8	21.3	103.5

Source: DVSA MOT bulk data · Window: 2019–2024 · n = 3,817 (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 2018 DS DS7?

The most common failure group on cars built in 2018 is tyres: 7.7 items per 100 first tests, against 7.2 across all build years of the DS DS7. These counts are not age-adjusted: cars built in 2018 were tested at ages 3 to 6.

Failure items per 100 first tests, DS DS7 built 2018 against the DS DS7 in all build years (2019–2024, not age-adjusted)
Failure group	Built 2018, per 100	All build years, per 100	Items
Tyres	7.7	7.2	296
Suspension	6.9	5	265
Brakes	4.5	4.4	173
Lamps, reflectors and electrical equipment	4.5	4.4	173
Visibility	4.4	3.4	169

Source: DVSA MOT bulk data · Window: 2019–2024 · n = 3,841 (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 2018 compare with the years around it?

Among the 3 published build years of the DS DS7, 2018 ranks 3 (1 = fails least for its age). 2019: index 102.3.

DS DS7 build years: index against the model at the same age (2019–2024)
Build year	Index (100 = normal)	95% interval	Verdict	Tests
2018	107.7	99.7–115.7	no different (rough estimate)	3,817
2019	102.3	94.7–109.9	no different	4,431
2020	98.1	82.5–113.6	no different (rough estimate)	1,125

Source: DVSA MOT bulk data · Window: 2019–2024 · n = 9,373 (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 DS7 2018 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-ds7/2018/

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 DS7 2019 · DS DS7 2020 · DS DS7 by postcode area · DS DS7 body, chassis and structure failures · DS DS7 brakes failures · DS DS7 vehicle identification failures · DS DS7 lamps, reflectors and electrics failures · DS DS7 noise, emissions and leaks failures · DS DS7 suspension failures · DS DS7 tyres failures · DS DS7 visibility failures