Kia Carens 2018: MOT failure rate for its age

22.1% of 6,621 MOT tests of the Kia Carens 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 102.8 (95% CI 97.5–108.0; 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.

Kia Carens built in 2018 at a glance
Measure	Value	Unit	Compared with	Years	Tests
Failed first time	22.1	%	all ages tested	2019–2024	6621
Index against this model at the same age (95% CI 97.5–108.0)	102.8	index	100 = normal for this model at that age	2019–2024	6621
Rank among this model's 17 build years	10	of 17	1 = fails least for its age	2019–2024	6621
Tested in 2024	1625	tests	median 48,138 miles	2024	1625

Built 2018 against Kia Carens normal for the age: first-time MOT failure share at each age, age 3: 19.4% vs 18.8%; age 4: 20.8% vs 20.6%; age 5: 22.2% vs 22.4%; age 6: 26.2% vs 24.4%. Axis from 0% to 30%. DVSA MOT bulk data, 2019–2024.

Check a 2018 Kia Carens by registration · All Kia Carens 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 Carens 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 Carens 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	1,677	19.4	17.6–21.3	18.8	103.1
4	1,687	20.8	18.9–22.8	20.6	101.1
5	1,632	22.2	20.2–24.3	22.4	99.1
6	1,625	26.2	24.1–28.3	24.4	107.4

Source: DVSA MOT bulk data · Window: 2019–2024 · n = 6,621 (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 Carens?

The most common failure group on cars built in 2018 is tyres: 8.7 items per 100 first tests, against 12.6 across all build years of the Kia Carens. These counts are not age-adjusted: cars built in 2018 were tested at ages 3 to 6.

Failure items per 100 first tests, Kia Carens built 2018 against the Kia Carens in all build years (2019–2024, not age-adjusted)
Failure group	Built 2018, per 100	All build years, per 100	Items
Tyres	8.7	12.6	587
Brakes	7.9	25.7	536
Visibility	6.6	9.6	445
Lamps, reflectors and electrical equipment	4.8	21	322
Seat belts and supplementary restraint systems	1.8	2.2	121

Source: DVSA MOT bulk data · Window: 2019–2024 · n = 6,766 (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 17 published build years of the Kia Carens, 2018 ranks 10 (1 = fails least for its age). 2017: index 100.0. 2019: index 123.6.

Kia Carens build years: index against the model at the same age (2019–2024)
Build year	Index (100 = normal)	95% interval	Verdict	Tests
2003	107.9	97.2–118.5	no different (rough estimate)	620
2004	108.7	101.3–116.2	worse (rough estimate)	1,297
2005	112.1	106.1–118.1	worse (rough estimate)	2,094
2006	107.6	103.2–112.0	worse (rough estimate)	3,828
2007	100.2	96.6–103.7	no different	5,719
2008	99.0	96.4–101.7	no different	10,063
2009	97.7	94.9–100.5	no different	9,597
2010	94.5	89.0–100.1	no different (rough estimate)	2,555
2011	109.0	102.7–115.2	worse (rough estimate)	2,584
2012	122.3	109.1–135.4	worse (rough estimate)	719
2013	94.3	90.8–97.8	better	8,634
2014	98.8	95.7–101.8	no different	13,519
2015	97.8	94.5–101.1	no different	13,117
2016	97.7	93.9–101.5	no different	10,767
2017	100.0	95.8–104.2	no different	9,733
2018	102.8	97.5–108.0	no different	6,621
2019	123.6	94.6–152.5	no different (rough estimate)	279

Source: DVSA MOT bulk data · Window: 2019–2024 · n = 101,746 (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 Carens 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-carens/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.

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