Vauxhall Cascada 2015: MOT failure rate for its age

20.9% of 3,453 MOT tests of the Vauxhall Cascada 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 99.4 (95% CI 92.1–106.7; 100 = normal for this model at that age): the 2015 build year is no different from other years of the same model at the same age. This is a rough estimate from a smaller sample.

Vauxhall Cascada built in 2015 at a glance
Measure	Value	Unit	Compared with	Years	Tests
Failed first time	20.9	%	all ages tested	2019–2024	3453
Index against this model at the same age (95% CI 92.1–106.7)	99.4	index	100 = normal for this model at that age	2019–2024	3453
Rank among this model's 5 build years	3	of 5	1 = fails least for its age	2019–2024	3453
Tested in 2024	563	tests	median 53,674 miles	2024	563

Built 2015 against Vauxhall Cascada normal for the age: first-time MOT failure share at each age, age 4: 15.3% vs 15.4%; age 5: 18.5% vs 19.4%; age 6: 21% vs 21.3%; age 7: 23% vs 22.8%; age 8: 25.2% vs 22.9%; age 9: 22.4% vs 24.4%. Axis from 0% to 30%. DVSA MOT bulk data, 2019–2024.

Check a 2015 Vauxhall Cascada by registration · All Vauxhall Cascada 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 Vauxhall Cascada 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.

Vauxhall Cascada built 2015: 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)
4	589	15.3	12.6–18.4	15.4	99.5
5	573	18.5	15.5–21.9	19.4	95.3
6	566	21	17.9–24.6	21.3	98.6
7	582	23	19.8–26.6	22.8	100.8
8	580	25.2	21.8–28.9	22.9	110
9	563	22.4	19.1–26	24.4	91.8

Source: DVSA MOT bulk data · Window: 2019–2024 · n = 3,453 (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 Vauxhall Cascada?

The most common failure group on cars built in 2015 is suspension: 9.4 items per 100 first tests, against 9.5 across all build years of the Vauxhall Cascada. These counts are not age-adjusted: cars built in 2015 were tested at ages 4 to 9.

Failure items per 100 first tests, Vauxhall Cascada built 2015 against the Vauxhall Cascada in all build years (2019–2024, not age-adjusted)
Failure group	Built 2015, per 100	All build years, per 100	Items
Suspension	9.4	9.5	324
Tyres	6.1	7.8	210
Brakes	5.6	6.3	193
Visibility	3.3	4	115
Lamps, reflectors and electrical equipment	3.3	4.1	114

Source: DVSA MOT bulk data · Window: 2019–2024 · n = 3,453 (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 5 published build years of the Vauxhall Cascada, 2015 ranks 3 (1 = fails least for its age). 2014: index 107.7. 2016: index 89.0.

Vauxhall Cascada build years: index against the model at the same age (2019–2024)
Build year	Index (100 = normal)	95% interval	Verdict	Tests
2013	100.6	94.8–106.3	no different	4,803
2014	107.7	101.3–114.1	worse	4,317
2015	99.4	92.1–106.7	no different (rough estimate)	3,453
2016	89.0	81.3–96.7	better (rough estimate)	3,089
2017	86.6	73.3–99.9	better (rough estimate)	1,073

Source: DVSA MOT bulk data · Window: 2019–2024 · n = 16,735 (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). Vauxhall Cascada 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/vauxhall-cascada/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

Vauxhall Cascada 2013 · Vauxhall Cascada 2014 · Vauxhall Cascada 2016 · Vauxhall Cascada 2017 · Vauxhall Cascada in the Netherlands · Vauxhall Cascada by postcode area · Vauxhall Cascada body, chassis and structure failures · Vauxhall Cascada brakes failures · Vauxhall Cascada vehicle identification failures · Vauxhall Cascada lamps, reflectors and electrics failures · Vauxhall Cascada noise, emissions and leaks failures · Vauxhall Cascada road wheels failures · Vauxhall Cascada steering failures · Vauxhall Cascada suspension failures · Vauxhall Cascada tyres failures · Vauxhall Cascada visibility failures