Toyota Avensis 2003: MOT failure rate for its age

43.6% of 22,519 MOT tests of the Toyota Avensis first registered in 2003 failed at the first attempt (2019–2024; retests excluded). Against this model's own normal rate at the same ages the index is 100.6 (95% CI 98.6–102.6; 100 = normal for this model at that age): the 2003 build year is no different from other years of the same model at the same age.

Toyota Avensis built in 2003 at a glance
Measure	Value	Unit	Compared with	Years	Tests
Failed first time	43.6	%	all ages tested	2019–2024	22519
Index against this model at the same age (95% CI 98.6–102.6)	100.6	index	100 = normal for this model at that age	2019–2024	22519
Rank among this model's 21 build years	14	of 21	1 = fails least for its age	2019–2024	22519
Tested in 2024	1966	tests	median 109,722 miles	2024	1966

Built 2003 against Toyota Avensis normal for the age: first-time MOT failure share at each age, age 16: 45.2% vs 45.8%; age 17: 43.7% vs 42.9%; age 18: 43.4% vs 43.1%; age 19: 42.2% vs 41.4%; age 20: 41.8% vs 42.3%; age 21: 42.9% vs 41.1%. Axis from 0% to 50%. DVSA MOT bulk data, 2019–2024.

Check a 2003 Toyota Avensis by registration · All Toyota Avensis 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 2003 Toyota Avensis fail at each age?

Cars built in 2003 were tested at ages 16 to 21 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.

Toyota Avensis built 2003: 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)
16	6,487	45.2	44–46.4	45.8	98.7
17	4,720	43.7	42.3–45.1	42.9	101.8
18	3,788	43.4	41.8–45	43.1	100.7
19	3,056	42.2	40.5–44	41.4	102
20	2,502	41.8	39.9–43.8	42.3	98.8
21	1,966	42.9	40.7–45.1	41.1	104.2

Source: DVSA MOT bulk data · Window: 2019–2024 · n = 22,519 (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 2003 Toyota Avensis?

The most common failure group on cars built in 2003 is lamps, reflectors and electrical equipment: 37 items per 100 first tests, against 28.1 across all build years of the Toyota Avensis. These counts are not age-adjusted: cars built in 2003 were tested at ages 16 to 21.

Failure items per 100 first tests, Toyota Avensis built 2003 against the Toyota Avensis in all build years (2019–2024, not age-adjusted)
Failure group	Built 2003, per 100	All build years, per 100	Items
Lamps, reflectors and electrical equipment	37	28.1	8,323
Brakes	21.7	16.7	4,887
Suspension	19.1	16.1	4,310
Noise, emissions and leaks	14.2	5.1	3,191
Visibility	12	8.7	2,704

Source: DVSA MOT bulk data · Window: 2019–2024 · n = 22,519 (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 2003 compare with the years around it?

Among the 21 published build years of the Toyota Avensis, 2003 ranks 14 (1 = fails least for its age). 2002: index 102.8. 2004: index 98.4.

Toyota Avensis build years: index against the model at the same age (2019–2024)
Build year	Index (100 = normal)	95% interval	Verdict	Tests
1998	94.8	88.8–100.9	no different (rough estimate)	2,193
1999	99.0	94.4–103.5	no different	4,083
2000	99.5	95.5–103.5	no different	5,418
2001	99.5	96.2–102.8	no different	7,902
2002	102.8	99.9–105.6	no different	11,089
2003	100.6	98.6–102.6	no different	22,519
2004	98.4	96.7–100.0	no different	30,868
2005	100.9	99.3–102.5	no different	37,402
2006	101.0	99.6–102.5	no different	44,720
2007	104.8	103.3–106.3	worse	46,417
2008	105.4	103.8–106.9	worse	43,138
2009	95.2	93.6–96.8	better	39,163
2010	95.3	93.7–97.0	better	40,551
2011	94.8	92.8–96.8	better	31,220
2012	94.3	92.3–96.3	better	33,306
2013	97.9	95.2–100.6	no different	21,489
2014	102.1	99.1–105.1	no different	20,391
2015	96.2	93.2–99.2	better	21,137
2016	91.7	88.7–94.7	better	23,031
2017	89.5	85.5–93.6	better	13,723
2018	109.8	102.0–117.5	worse	4,848

Source: DVSA MOT bulk data · Window: 2019–2024 · n = 504,608 (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). Toyota Avensis 2003 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/toyota-avensis/2003/

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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