Kia Stinger 2018: MOT failure rate for its age

11.9% of 2,667 MOT tests of the Kia Stinger 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 101.2 (95% CI 90.1–112.3; 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.

Kia Stinger built in 2018 at a glance
Measure	Value	Unit	Compared with	Years	Tests
Failed first time	11.9	%	all ages tested	2019–2024	2667
Index against this model at the same age (95% CI 90.1–112.3)	101.2	index	100 = normal for this model at that age	2019–2024	2667
Rank among this model's 4 build years	3	of 4	1 = fails least for its age	2019–2024	2667
Tested in 2024	655	tests	median 41,674 miles	2024	655

Built 2018 against Kia Stinger normal for the age: first-time MOT failure share at each age, age 3: 9.7% vs 9.6%; age 4: 10.8% vs 11.4%; age 5: 13.4% vs 12.8%; age 6: 13.7% vs 13.3%. Axis from 0% to 20%. DVSA MOT bulk data, 2019–2024.

Check a 2018 Kia Stinger by registration · All Kia Stinger 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 Kia Stinger 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.

Kia Stinger 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	667	9.7	7.7–12.2	9.6	101.1
4	673	10.8	8.7–13.4	11.4	95.2
5	672	13.4	11–16.2	12.8	104.2
6	655	13.7	11.3–16.6	13.3	103.5

Source: DVSA MOT bulk data · Window: 2019–2024 · n = 2,667 (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 Kia Stinger?

The most common failure group on cars built in 2018 is tyres: 8.3 items per 100 first tests, against 7.8 across all build years of the Kia Stinger. These counts are not age-adjusted: cars built in 2018 were tested at ages 3 to 6.

Failure items per 100 first tests, Kia Stinger built 2018 against the Kia Stinger in all build years (2019–2024, not age-adjusted)
Failure group	Built 2018, per 100	All build years, per 100	Items
Tyres	8.3	7.8	222
Visibility	4.9	5.2	132
Brakes	4.1	3.5	109
Lamps, reflectors and electrical equipment	1.2	1.1	33

Source: DVSA MOT bulk data · Window: 2019–2024 · n = 2,688 (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 4 published build years of the Kia Stinger, 2018 ranks 3 (1 = fails least for its age). 2017: index 73.4. 2019: index 104.6.

Kia Stinger build years: index against the model at the same age (2019–2024)
Build year	Index (100 = normal)	95% interval	Verdict	Tests
2017	73.4	52.2–94.6	better (rough estimate)	524
2018	101.2	90.1–112.3	no different (rough estimate)	2,667
2019	104.6	93.5–115.8	no different (rough estimate)	2,875
2020	97.1	68.1–126.1	no different (rough estimate)	426

Source: DVSA MOT bulk data · Window: 2019–2024 · n = 6,492 (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). Kia Stinger 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/kia-stinger/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

Kia Stinger 2017 · Kia Stinger 2019 · Kia Stinger 2020 · Kia Stinger by postcode area · Kia Stinger brakes failures · Kia Stinger vehicle identification failures · Kia Stinger lamps, reflectors and electrics failures · Kia Stinger noise, emissions and leaks failures · Kia Stinger tyres failures · Kia Stinger visibility failures