Kia Niro 2017: MOT failure rate for its age

12.3% of 23,368 MOT tests of the Kia Niro first registered in 2017 failed at the first attempt (2019–2024; retests excluded). Against this model's own normal rate at the same ages the index is 94.5 (95% CI 91.1–98.0; 100 = normal for this model at that age): the 2017 Kia Niro fails less often than other build years of the same model at the same age.

Kia Niro built in 2017 at a glance
Measure	Value	Unit	Compared with	Years	Tests
Failed first time	12.3	%	all ages tested	2019–2024	23368
Index against this model at the same age (95% CI 91.1–98.0)	94.5	index	100 = normal for this model at that age	2019–2024	23368
Rank among this model's 5 build years	2	of 5	1 = fails least for its age	2019–2024	23368
Tested in 2024	4544	tests	median 57,061 miles	2024	4544

Built 2017 against Kia Niro normal for the age: first-time MOT failure share at each age, age 3: 7.3% vs 10.8%; age 4: 10.7% vs 12.3%; age 5: 13.2% vs 13.2%; age 6: 15.9% vs 14.5%; age 7: 15.5% vs 14.8%. Axis from 0% to 20%. DVSA MOT bulk data, 2019–2024.

Check a 2017 Kia Niro by registration · All Kia Niro 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 2017 Kia Niro fail at each age?

Cars built in 2017 were tested at ages 3 to 7 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 Niro built 2017: 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	5,359	7.3	6.6–8	10.8	67.3
4	4,415	10.7	9.8–11.6	12.3	87
5	4,508	13.2	12.2–14.2	13.2	100.2
6	4,542	15.9	14.9–17	14.5	109.4
7	4,544	15.5	14.4–16.6	14.8	104.4

Source: DVSA MOT bulk data · Window: 2019–2024 · n = 23,368 (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 2017 Kia Niro?

The most common failure group on cars built in 2017 is tyres: 7.9 items per 100 first tests, against 7.4 across all build years of the Kia Niro. These counts are not age-adjusted: cars built in 2017 were tested at ages 3 to 7.

Failure items per 100 first tests, Kia Niro built 2017 against the Kia Niro in all build years (2019–2024, not age-adjusted)
Failure group	Built 2017, per 100	All build years, per 100	Items
Tyres	7.9	7.4	1,879
Visibility	4.9	4.4	1,161
Brakes	3.2	1.5	768
Lamps, reflectors and electrical equipment	2	2.4	463
Suspension	0.4	0.2	91

Source: DVSA MOT bulk data · Window: 2019–2024 · n = 23,694 (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 2017 compare with the years around it?

Among the 5 published build years of the Kia Niro, 2017 ranks 2 (1 = fails least for its age). 2016: index 93.2. 2018: index 106.7.

Kia Niro build years: index against the model at the same age (2019–2024)
Build year	Index (100 = normal)	95% interval	Verdict	Tests
2016	93.2	87.4–99.0	better	7,720
2017	94.5	91.1–98.0	better	23,368
2018	106.7	103.3–110.0	worse	29,196
2019	108.2	104.9–111.6	worse	31,242
2020	100.3	97.4–103.3	no different	39,474

Source: DVSA MOT bulk data · Window: 2019–2024 · n = 131,000 (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 Niro 2017 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-niro/2017/

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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