MOT Risk Index.co.uk

Kia Rio 2008: MOT failure rate for its age

47.5% of 16,544 MOT tests of the Kia Rio first registered in 2008 failed at the first attempt (2019–2024; retests excluded). Against this model's own normal rate at the same ages the index is 104.7 (95% CI 102.4–107.0; 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).

Kia Rio built in 2008 at a glance
MeasureValueUnitCompared withYearsTests
Failed first time47.5%all ages tested2019–202416544
Index against this model at the same age (95% CI 102.4–107.0)104.7index100 = normal for this model at that age2019–202416544
Rank among this model's 19 build years16of 191 = fails least for its age2019–202416544
Tested in 20242018testsmedian 87,164 miles20242018
line · Kia Rio built 2008 · first-time MOT failure share by age · built 2008 45.5% vs model normal 44.1% at age 11 · 2019–2024
Built 2008 against Kia Rio normal for the age: first-time MOT failure share at each age, age 11: 45.5% vs 44.1%; age 12: 47.1% vs 43.8%; age 13: 46% vs 45.2%; age 14: 48.5% vs 45.1%; age 15: 48.6% vs 47%; age 16: 50.7% vs 48.4%. Axis from 0% to 60%. DVSA MOT bulk data, 2019–2024.
Check a 2008 Kia Rio by registration · All Kia Rio 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 2008 Kia Rio fail at each age?

Cars built in 2008 were tested at ages 11 to 16 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.

Kia Rio built 2008: 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)
113,49645.543.9–47.244.1103.3
123,13947.145.4–48.943.8107.7
132,9034644.1–47.845.2101.7
142,65948.546.6–50.445.1107.5
152,32948.646.5–50.647103.3
162,01850.748.6–52.948.4104.9

Source: DVSA MOT bulk data · Window: 2019–2024 · n = 16,544 (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 2008 Kia Rio?

The most common failure group on cars built in 2008 is lamps, reflectors and electrical equipment: 32.8 items per 100 first tests, against 15.2 across all build years of the Kia Rio. These counts are not age-adjusted: cars built in 2008 were tested at ages 11 to 16.

Failure items per 100 first tests, Kia Rio built 2008 against the Kia Rio in all build years (2019–2024, not age-adjusted)
Failure groupBuilt 2008, per 100All build years, per 100Items
Lamps, reflectors and electrical equipment32.815.25,424
Brakes28.612.94,736
Suspension28.514.14,722
Steering18.26.13,004
Visibility14.49.72,378

Source: DVSA MOT bulk data · Window: 2019–2024 · n = 16,544 (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 2008 compare with the years around it?

Among the 19 published build years of the Kia Rio, 2008 ranks 16 (1 = fails least for its age). 2007: index 103.6. 2009: index 100.2.

Kia Rio build years: index against the model at the same age (2019–2024)
Build yearIndex (100 = normal)95% intervalVerdictTests
200292.883.9–101.6no different (rough estimate)880
2003101.995.9–107.8no different (rough estimate)2,141
2004101.296.7–105.7no different (rough estimate)3,833
2005102.698.9–106.2no different6,028
2006102.999.9–105.8no different9,424
2007103.6100.8–106.4worse10,651
2008104.7102.4–107.0worse16,544
2009100.298.6–101.8no different34,765
2010102.0100.5–103.5worse41,708
2011106.8105.2–108.4worse44,891
2012105.9104.4–107.3worse56,743
2013107.8106.3–109.3worse61,758
2014101.399.8–102.7no different67,438
201588.787.3–90.2better68,841
201696.394.3–98.2better53,554
201782.980.7–85.0better42,255
201883.280.1–86.2better23,017
201988.784.5–92.9better14,644
202098.291.2–105.2no different6,764

Source: DVSA MOT bulk data · Window: 2019–2024 · n = 565,879 (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). Kia Rio 2008 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/kia-rio/2008/

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

Kia Rio 2002 · Kia Rio 2003 · Kia Rio 2004 · Kia Rio 2005 · Kia Rio 2006 · Kia Rio 2007 · Kia Rio 2009 · Kia Rio 2010 · Kia Rio 2011 · Kia Rio 2012 · Kia Rio 2013 · Kia Rio 2014 · Kia Rio 2015 · Kia Rio 2016 · Kia Rio 2017 · Kia Rio 2018 · Kia Rio 2019 · Kia Rio 2020 · Kia Rio in Norway · Kia Rio in Finland · Kia Rio in the Netherlands · Kia Rio by postcode area · Kia Rio body, chassis and structure failures · Kia Rio brakes failures · Kia Rio vehicle identification failures · Kia Rio lamps, reflectors and electrics failures · Kia Rio noise, emissions and leaks failures · Kia Rio road wheels failures · Kia Rio seat belts and airbags failures · Kia Rio steering failures · Kia Rio suspension failures · Kia Rio tyres failures · Kia Rio visibility failures