Hyundai i40 2017: MOT failure rate for its age

15.4% of 14,348 MOT tests of the Hyundai i40 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 80.5 (95% CI 77.2–83.9; 100 = normal for this model at that age): the 2017 Hyundai i40 fails less often than other build years of the same model at the same age.

Hyundai i40 built in 2017 at a glance
Measure	Value	Unit	Compared with	Years	Tests
Failed first time	15.4	%	all ages tested	2019–2024	14348
Index against this model at the same age (95% CI 77.2–83.9)	80.5	index	100 = normal for this model at that age	2019–2024	14348
Rank among this model's 9 build years	1	of 9	1 = fails least for its age	2019–2024	14348
Tested in 2024	2521	tests	median 72,453 miles	2024	2521

Built 2017 against Hyundai i40 normal for the age: first-time MOT failure share at each age, age 3: 10.4% vs 13.3%; age 4: 16.5% vs 17.7%; age 5: 15.9% vs 19.8%; age 6: 17.9% vs 22.5%; age 7: 18.7% vs 25.1%. Axis from 0% to 30%. DVSA MOT bulk data, 2019–2024.

Check a 2017 Hyundai i40 by registration · All Hyundai i40 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 Hyundai i40 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.

Hyundai i40 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	3,882	10.4	9.5–11.4	13.3	77.8
4	2,660	16.5	15.2–18	17.7	93.3
5	2,652	15.9	14.6–17.4	19.8	80.2
6	2,633	17.9	16.4–19.4	22.5	79.5
7	2,521	18.7	17.2–20.3	25.1	74.5

Source: DVSA MOT bulk data · Window: 2019–2024 · n = 14,348 (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 Hyundai i40?

The most common failure group on cars built in 2017 is tyres: 7.2 items per 100 first tests, against 9.3 across all build years of the Hyundai i40. These counts are not age-adjusted: cars built in 2017 were tested at ages 3 to 7.

Failure items per 100 first tests, Hyundai i40 built 2017 against the Hyundai i40 in all build years (2019–2024, not age-adjusted)
Failure group	Built 2017, per 100	All build years, per 100	Items
Tyres	7.2	9.3	1,060
Brakes	5.5	12.6	808
Visibility	5.4	6.6	791
Lamps, reflectors and electrical equipment	3.4	10	491
Suspension	2	5.3	293

Source: DVSA MOT bulk data · Window: 2019–2024 · n = 14,622 (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 9 published build years of the Hyundai i40, 2017 ranks 1 (1 = fails least for its age). 2016: index 88.0. 2018: index 97.1.

Hyundai i40 build years: index against the model at the same age (2019–2024)
Build year	Index (100 = normal)	95% interval	Verdict	Tests
2011	107.3	101.7–112.9	worse (rough estimate)	3,903
2012	109.2	106.7–111.7	worse	21,682
2013	111.0	108.2–113.8	worse	18,497
2014	103.9	101.4–106.5	worse	23,236
2015	95.8	93.2–98.3	better	22,899
2016	88.0	85.3–90.6	better	22,325
2017	80.5	77.2–83.9	better	14,348
2018	97.1	90.5–103.6	no different	4,824
2019	96.3	83.9–108.6	no different (rough estimate)	1,449

Source: DVSA MOT bulk data · Window: 2019–2024 · n = 133,163 (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). Hyundai i40 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/hyundai-i40/2017/

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.

Hyundai i40 2017: MOT failure rate for its age

How does the 2017 Hyundai i40 fail at each age?

What fails most on the 2017 Hyundai i40?

How does 2017 compare with the years around it?

How to cite this page

Related pages

Other pages for this model