Fiat 500X 2015: MOT failure rate for its age

22.2% of 42,606 MOT tests of the Fiat 500X first registered in 2015 failed at the first attempt (2019–2024; retests excluded). Against this model's own normal rate at the same ages the index is 102.7 (95% CI 100.7–104.8; 100 = normal for this model at that age): close to other build years of the same model at the same age (within 5 points of normal).

Fiat 500X built in 2015 at a glance
Measure	Value	Unit	Compared with	Years	Tests
Failed first time	22.2	%	all ages tested	2019–2024	42606
Index against this model at the same age (95% CI 100.7–104.8)	102.7	index	100 = normal for this model at that age	2019–2024	42606
Rank among this model's 6 build years	5	of 6	1 = fails least for its age	2019–2024	42606
Tested in 2024	7184	tests	median 63,305 miles	2024	7184

Built 2015 against Fiat 500X normal for the age: first-time MOT failure share at each age, age 4: 15.1% vs 13.7%; age 5: 18.3% vs 15.9%; age 6: 19.4% vs 19.1%; age 7: 23.1% vs 23.3%; age 8: 26% vs 27.3%; age 9: 31.3% vs 30.2%. Axis from 0% to 40%. DVSA MOT bulk data, 2019–2024.

Check a 2015 Fiat 500X by registration · All Fiat 500X 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 2015 Fiat 500X fail at each age?

Cars built in 2015 were tested at ages 4 to 9 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.

Fiat 500X built 2015: 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)
4	7,105	15.1	14.3–16	13.7	110.1
5	6,918	18.3	17.4–19.2	15.9	114.6
6	7,108	19.4	18.5–20.3	19.1	101.6
7	7,167	23.1	22.2–24.1	23.3	99.4
8	7,124	26	25–27	27.3	95.1
9	7,184	31.3	30.2–32.4	30.2	103.5

Source: DVSA MOT bulk data · Window: 2019–2024 · n = 42,606 (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 2015 Fiat 500X?

The most common failure group on cars built in 2015 is tyres: 10.4 items per 100 first tests, against 8.5 across all build years of the Fiat 500X. These counts are not age-adjusted: cars built in 2015 were tested at ages 4 to 9.

Failure items per 100 first tests, Fiat 500X built 2015 against the Fiat 500X in all build years (2019–2024, not age-adjusted)
Failure group	Built 2015, per 100	All build years, per 100	Items
Tyres	10.4	8.5	4,432
Steering	8.5	6.6	3,638
Lamps, reflectors and electrical equipment	8.2	6.5	3,510
Suspension	4.2	2.6	1,784
Visibility	4.1	3.3	1,753

Source: DVSA MOT bulk data · Window: 2019–2024 · n = 42,606 (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 2015 compare with the years around it?

Among the 6 published build years of the Fiat 500X, 2015 ranks 5 (1 = fails least for its age). 2016: index 106.7.

Fiat 500X build years: index against the model at the same age (2019–2024)
Build year	Index (100 = normal)	95% interval	Verdict	Tests
2015	102.7	100.7–104.8	worse	42,606
2016	106.7	105.0–108.3	worse	82,477
2017	95.6	92.5–98.6	better	24,558
2018	80.9	76.5–85.3	better	11,428
2019	79.2	74.3–84.1	better	10,085
2020	89.3	80.8–97.8	better	4,257

Source: DVSA MOT bulk data · Window: 2019–2024 · n = 175,411 (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). Fiat 500X 2015 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/fiat-500x/2015/

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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