Mitsubishi Colt 2005: MOT failure rate for its age

47.9% of 17,897 MOT tests of the Mitsubishi Colt first registered in 2005 failed at the first attempt (2019–2024; retests excluded). Against this model's own normal rate at the same ages the index is 99.9 (95% CI 97.8–102.0; 100 = normal for this model at that age): the 2005 build year is no different from other years of the same model at the same age.

Mitsubishi Colt built in 2005 at a glance
Measure	Value	Unit	Compared with	Years	Tests
Failed first time	47.9	%	all ages tested	2019–2024	17897
Index against this model at the same age (95% CI 97.8–102.0)	99.9	index	100 = normal for this model at that age	2019–2024	17897
Rank among this model's 13 build years	10	of 13	1 = fails least for its age	2019–2024	17897
Tested in 2024	1850	tests	median 90,831 miles	2024	1850

Built 2005 against Mitsubishi Colt normal for the age: first-time MOT failure share at each age, age 14: 47.7% vs 49.9%; age 15: 46.7% vs 47.4%; age 16: 49.5% vs 48.4%; age 17: 48.2% vs 47%; age 18: 47.9% vs 46.9%; age 19: 47.4% vs 46.4%. Axis from 0% to 50%. DVSA MOT bulk data, 2019–2024.

Check a 2005 Mitsubishi Colt by registration · All Mitsubishi Colt 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 2005 Mitsubishi Colt fail at each age?

Cars built in 2005 were tested at ages 14 to 19 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.

Mitsubishi Colt built 2005: 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)
14	4,459	47.7	46.2–49.2	49.9	95.6
15	3,624	46.7	45.1–48.4	47.4	98.6
16	3,102	49.5	47.8–51.3	48.4	102.4
17	2,653	48.2	46.3–50.1	47	102.7
18	2,209	47.9	45.9–50	46.9	102.3
19	1,850	47.4	45.1–49.7	46.4	102.2

Source: DVSA MOT bulk data · Window: 2019–2024 · n = 17,897 (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 2005 Mitsubishi Colt?

The most common failure group on cars built in 2005 is lamps, reflectors and electrical equipment: 54.2 items per 100 first tests, against 34.4 across all build years of the Mitsubishi Colt. These counts are not age-adjusted: cars built in 2005 were tested at ages 14 to 19.

Failure items per 100 first tests, Mitsubishi Colt built 2005 against the Mitsubishi Colt in all build years (2019–2024, not age-adjusted)
Failure group	Built 2005, per 100	All build years, per 100	Items
Lamps, reflectors and electrical equipment	54.2	34.4	9,700
Suspension	33.2	25.2	5,934
Brakes	19.3	12.5	3,448
Visibility	17.1	14	3,064
Tyres	10.9	10.5	1,957

Source: DVSA MOT bulk data · Window: 2019–2024 · n = 17,897 (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 2005 compare with the years around it?

Among the 13 published build years of the Mitsubishi Colt, 2005 ranks 10 (1 = fails least for its age). 2004: index 101.1. 2006: index 98.0.

Mitsubishi Colt build years: index against the model at the same age (2019–2024)
Build year	Index (100 = normal)	95% interval	Verdict	Tests
2001	95.6	78.2–113.1	no different (rough estimate)	237
2002	90.1	76.7–103.4	no different (rough estimate)	386
2003	88.7	74.5–102.8	no different (rough estimate)	343
2004	101.1	96.4–105.8	no different (rough estimate)	3,632
2005	99.9	97.8–102.0	no different	17,897
2006	98.0	96.1–99.8	better	23,684
2007	101.7	100.0–103.4	no different	29,601
2008	105.3	103.6–107.0	worse	31,948
2009	98.5	96.7–100.4	no different	26,312
2010	96.1	93.7–98.4	better	16,743
2011	90.9	87.8–93.9	better	10,633
2012	92.2	88.7–95.6	better	9,281
2013	96.9	90.6–103.2	no different (rough estimate)	3,217

Source: DVSA MOT bulk data · Window: 2019–2024 · n = 173,914 (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). Mitsubishi Colt 2005 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/mitsubishi-colt/2005/

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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