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Daihatsu Terios 2005: MOT failure rate for its age

48.7% of 2,962 MOT tests of the Daihatsu Terios 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 116.7 (95% CI 110.7–122.8; 100 = normal for this model at that age): the 2005 Daihatsu Terios fails more often than other build years of the same model at the same age. This is a rough estimate from a smaller sample.

Daihatsu Terios built in 2005 at a glance
MeasureValueUnitCompared withYearsTests
Failed first time48.7%all ages tested2019–20242962
Index against this model at the same age (95% CI 110.7–122.8)116.7index100 = normal for this model at that age2019–20242962
Rank among this model's 8 build years5of 81 = fails least for its age2019–20242962
Tested in 2024332testsmedian 81,173 miles2024332
line · Daihatsu Terios built 2005 · first-time MOT failure share by age · built 2005 49.4% vs model normal 40.9% at age 14 · 2019–2024
Built 2005 against Daihatsu Terios normal for the age: first-time MOT failure share at each age, age 14: 49.4% vs 40.9%; age 15: 49.2% vs 41.3%; age 16: 48.4% vs 42.8%; age 17: 48.2% vs 42.2%; age 18: 47.7% vs 41.9%; age 19: 49.1% vs n/a%. Axis from 0% to 50%. DVSA MOT bulk data, 2019–2024.

Data release dvsa-2024-v2 (24 Sep 2026) · page updated 30 Sep 2026 · full dataset (v5).

How does the 2005 Daihatsu Terios 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.

Daihatsu Terios built 2005: first-time MOT failure by age, against the model's normal rate at that age (2019–2024)
AgeTestsFailed, %95% intervalNormal for this model at that age, %Index (100 = normal)
1479649.445.9–52.840.9120.7
1565549.245.3–5341.3119.1
1658048.444.4–52.542.8113.2
1751048.243.9–52.642.2114.2
18421 (rough estimate)47.743–52.541.9113.9
19332 (rough estimate)49.143.8–54.5not availablenot available

Source: DVSA MOT bulk data · Window: 2019–2024 · n = 3,294 (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 Daihatsu Terios?

The most common failure group on cars built in 2005 is body, chassis, structure: 50.8 items per 100 first tests, against 27.2 across all build years of the Daihatsu Terios. These counts are not age-adjusted: cars built in 2005 were tested at ages 14 to 19.

Failure items per 100 first tests, Daihatsu Terios built 2005 against the Daihatsu Terios in all build years (2019–2024, not age-adjusted)
Failure groupBuilt 2005, per 100All build years, per 100Items
Body, chassis, structure50.827.21,674
Suspension47.638.91,567
Noise, emissions and leaks23.711781
Lamps, reflectors and electrical equipment21.218.1698
Brakes16.720.5550

Source: DVSA MOT bulk data · Window: 2019–2024 · n = 3,294 (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 8 published build years of the Daihatsu Terios, 2005 ranks 5 (1 = fails least for its age). 2004: index 118.8. 2006: index 99.4.

Daihatsu Terios build years: index against the model at the same age (2019–2024)
Build yearIndex (100 = normal)95% intervalVerdictTests
2002128.9115.5–142.3worse (rough estimate)602
2003123.3114.4–132.3worse (rough estimate)1,313
2004118.8110.6–127.0worse (rough estimate)1,561
2005116.7110.7–122.8worse (rough estimate)2,962
200699.495.1–103.6no different5,263
200796.192.6–99.7better7,761
200892.388.0–96.7better5,385
200988.182.7–93.6better (rough estimate)3,577

Source: DVSA MOT bulk data · Window: 2019–2024 · n = 28,424 (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). Daihatsu Terios 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/daihatsu-terios/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.

Other pages for this model

Daihatsu Terios 2002 · Daihatsu Terios 2003 · Daihatsu Terios 2004 · Daihatsu Terios 2006 · Daihatsu Terios 2007 · Daihatsu Terios 2008 · Daihatsu Terios 2009 · Daihatsu Terios in Norway · Daihatsu Terios in the Netherlands · Daihatsu Terios by postcode area · Daihatsu Terios body, chassis and structure failures · Daihatsu Terios brakes failures · Daihatsu Terios vehicle identification failures · Daihatsu Terios lamps, reflectors and electrics failures · Daihatsu Terios noise, emissions and leaks failures · Daihatsu Terios road wheels failures · Daihatsu Terios seat belts and airbags failures · Daihatsu Terios steering failures · Daihatsu Terios suspension failures · Daihatsu Terios tyres failures · Daihatsu Terios visibility failures