MOT Risk Index.co.uk

Mazda 5 2015: MOT failure rate for its age

27.3% of 4,261 MOT tests of the Mazda 5 first registered in 2015 failed at the first attempt (2019–2024; retests excluded). Against this model's own normal rate at the same ages the index is 93.9 (95% CI 88.5–99.3; 100 = normal for this model at that age): the 2015 Mazda 5 fails less often than other build years of the same model at the same age.

Mazda 5 built in 2015 at a glance
MeasureValueUnitCompared withYearsTests
Failed first time27.3%all ages tested2019–20244261
Index against this model at the same age (95% CI 88.5–99.3)93.9index100 = normal for this model at that age2019–20244261
Rank among this model's 11 build years4of 111 = fails least for its age2019–20244261
Tested in 2024696testsmedian 72,648 miles2024696
line · Mazda 5 built 2015 · first-time MOT failure share by age · built 2015 21% vs model normal 22.8% at age 4 · 2019–2024
Built 2015 against Mazda 5 normal for the age: first-time MOT failure share at each age, age 4: 21% vs 22.8%; age 5: 22.3% vs 23.3%; age 6: 26.4% vs 27.1%; age 7: 31.6% vs 31.1%; age 8: 29.4% vs 32.8%; age 9: 33.5% vs 37.7%. Axis from 0% to 40%. DVSA MOT bulk data, 2019–2024.
Check a 2015 Mazda 5 by registration · All Mazda 5 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 2015 Mazda 5 fail at each age?

Cars built in 2015 were tested at ages 4 to 9 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 5 built 2015: 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)
47392118.2–24.122.892
569022.319.4–25.623.395.8
672726.423.3–29.727.197.4
770831.628.3–35.231.1101.7
870129.426.1–32.932.889.6
969633.530.1–37.137.788.8

Source: DVSA MOT bulk data · Window: 2019–2024 · n = 4,261 (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 2015 Mazda 5?

The most common failure group on cars built in 2015 is tyres: 14.2 items per 100 first tests, against 15.8 across all build years of the Mazda 5. These counts are not age-adjusted: cars built in 2015 were tested at ages 4 to 9.

Failure items per 100 first tests, Mazda 5 built 2015 against the Mazda 5 in all build years (2019–2024, not age-adjusted)
Failure groupBuilt 2015, per 100All build years, per 100Items
Tyres14.215.8605
Suspension10.746.1455
Visibility8.711.8370
Lamps, reflectors and electrical equipment731.1298
Brakes6.216.3266

Source: DVSA MOT bulk data · Window: 2019–2024 · n = 4,261 (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 2015 compare with the years around it?

Among the 11 published build years of the Mazda 5, 2015 ranks 4 (1 = fails least for its age). 2014: index 93.5.

Mazda 5 build years: index against the model at the same age (2019–2024)
Build yearIndex (100 = normal)95% intervalVerdictTests
2005100.895.5–106.1no different (rough estimate)2,454
2006100.898.1–103.6no different9,362
2007103.0100.9–105.1worse17,370
2008100.698.6–102.7no different17,941
2009100.397.7–103.0no different10,890
2010101.498.6–104.3no different10,193
201190.286.4–94.1better5,398
201285.581.5–89.5better5,068
201396.091.4–100.6no different4,701
201493.588.0–99.0better (rough estimate)3,613
201593.988.5–99.3better4,261

Source: DVSA MOT bulk data · Window: 2019–2024 · n = 91,251 (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 5 2015 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-5/2015/

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

Mazda 5 2005 · Mazda 5 2006 · Mazda 5 2007 · Mazda 5 2008 · Mazda 5 2009 · Mazda 5 2010 · Mazda 5 2011 · Mazda 5 2012 · Mazda 5 2013 · Mazda 5 2014 · Mazda 5 in Norway · Mazda 5 in Finland · Mazda 5 in the Netherlands · Mazda 5 by postcode area · Mazda 5 body, chassis and structure failures · Mazda 5 brakes failures · Mazda 5 vehicle identification failures · Mazda 5 lamps, reflectors and electrics failures · Mazda 5 noise, emissions and leaks failures · Mazda 5 road wheels failures · Mazda 5 seat belts and airbags failures · Mazda 5 steering failures · Mazda 5 suspension failures · Mazda 5 tyres failures · Mazda 5 visibility failures