Mazda CX-3 2019: MOT failure rate for its age

9.2% of 22,988 MOT tests of the Mazda CX-3 first registered in 2019 failed at the first attempt (2019–2024; retests excluded). Against this model's own normal rate at the same ages the index is 100.1 (95% CI 95.8–104.3; 100 = normal for this model at that age): the 2019 build year is no different from other years of the same model at the same age.

Mazda CX-3 built in 2019 at a glance
Measure	Value	Unit	Compared with	Years	Tests
Failed first time	9.2	%	all ages tested	2019–2024	22988
Index against this model at the same age (95% CI 95.8–104.3)	100.1	index	100 = normal for this model at that age	2019–2024	22988
Rank among this model's 5 build years	3	of 5	1 = fails least for its age	2019–2024	22988
Tested in 2024	7598	tests	median 29,275 miles	2024	7598

Built 2019 against Mazda CX-3 normal for the age: first-time MOT failure share at each age, age 3: 7.3% vs 6.7%; age 4: 8.9% vs 9.2%; age 5: 11.4% vs 11.7%. Axis from 0% to 20%. DVSA MOT bulk data, 2019–2024.

Check a 2019 Mazda CX-3 by registration · All Mazda CX-3 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 2019 Mazda CX-3 fail at each age?

Cars built in 2019 were tested at ages 3 to 5 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.

Mazda CX-3 built 2019: 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	7,769	7.3	6.7–7.9	6.7	109.4
4	7,621	8.9	8.3–9.5	9.2	97.1
5	7,598	11.4	10.7–12.1	11.7	97

Source: DVSA MOT bulk data · Window: 2019–2024 · n = 22,988 (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 2019 Mazda CX-3?

The most common failure group on cars built in 2019 is visibility: 4.8 items per 100 first tests, against 5.7 across all build years of the Mazda CX-3. These counts are not age-adjusted: cars built in 2019 were tested at ages 3 to 5.

Failure items per 100 first tests, Mazda CX-3 built 2019 against the Mazda CX-3 in all build years (2019–2024, not age-adjusted)
Failure group	Built 2019, per 100	All build years, per 100	Items
Visibility	4.8	5.7	1,115
Tyres	4	4.6	935
Brakes	2.4	3.1	549
Lamps, reflectors and electrical equipment	1.4	2	327
Suspension	0.3	2.2	76

Source: DVSA MOT bulk data · Window: 2019–2024 · n = 23,352 (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 2019 compare with the years around it?

Among the 5 published build years of the Mazda CX-3, 2019 ranks 3 (1 = fails least for its age). 2018: index 93.5.

Mazda CX-3 build years: index against the model at the same age (2019–2024)
Build year	Index (100 = normal)	95% interval	Verdict	Tests
2015	106.5	102.2–110.8	worse	14,269
2016	113.0	109.7–116.4	worse	29,618
2017	92.1	88.6–95.6	better	25,347
2018	93.5	89.6–97.4	better	22,725
2019	100.1	95.8–104.3	no different	22,988

Source: DVSA MOT bulk data · Window: 2019–2024 · n = 114,947 (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). Mazda CX-3 2019 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/mazda-cx-3/2019/

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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