Alfa Romeo 159 2011: MOT failure rate for its age

38.8% of 3,067 MOT tests of the Alfa Romeo 159 first registered in 2011 failed at the first attempt (2019–2024; retests excluded). Against this model's own normal rate at the same ages the index is 95.3 (95% CI 89.9–100.7; 100 = normal for this model at that age): the 2011 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.

Alfa Romeo 159 built in 2011 at a glance
Measure	Value	Unit	Compared with	Years	Tests
Failed first time	38.8	%	all ages tested	2019–2024	3067
Index against this model at the same age (95% CI 89.9–100.7)	95.3	index	100 = normal for this model at that age	2019–2024	3067
Rank among this model's 7 build years	2	of 7	1 = fails least for its age	2019–2024	3067
Tested in 2024	456	tests	median 115,129 miles	2024	456

Built 2011 against Alfa Romeo 159 normal for the age: first-time MOT failure share at each age, age 8: 34.3% vs 37.3%; age 9: 39.1% vs 37.2%; age 10: 38.7% vs 41.4%; age 11: 38.6% vs 42.2%; age 12: 42.2% vs 43.5%; age 13: 40.8% vs 43.5%. Axis from 0% to 50%. DVSA MOT bulk data, 2019–2024.

Check a 2011 Alfa Romeo 159 by registration · All Alfa Romeo 159 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 2011 Alfa Romeo 159 fail at each age?

Cars built in 2011 were tested at ages 8 to 13 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.

Alfa Romeo 159 built 2011: 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)
8	563	34.3	30.5–38.3	37.3	92
9	517	39.1	35–43.3	37.2	105.1
10	525	38.7	34.6–42.9	41.4	93.4
11	511	38.6	34.4–42.8	42.2	91.4
12	495 (rough estimate)	42.2	37.9–46.6	43.5	97.1
13	456 (rough estimate)	40.8	36.4–45.4	43.5	93.9

Source: DVSA MOT bulk data · Window: 2019–2024 · n = 3,067 (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 2011 Alfa Romeo 159?

The most common failure group on cars built in 2011 is suspension: 20.9 items per 100 first tests, against 32.4 across all build years of the Alfa Romeo 159. These counts are not age-adjusted: cars built in 2011 were tested at ages 8 to 13.

Failure items per 100 first tests, Alfa Romeo 159 built 2011 against the Alfa Romeo 159 in all build years (2019–2024, not age-adjusted)
Failure group	Built 2011, per 100	All build years, per 100	Items
Suspension	20.9	32.4	640
Lamps, reflectors and electrical equipment	20.8	24	638
Brakes	18.2	24.7	559
Tyres	15.9	15.1	489
Visibility	7.3	9.2	223

Source: DVSA MOT bulk data · Window: 2019–2024 · n = 3,067 (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 2011 compare with the years around it?

Among the 7 published build years of the Alfa Romeo 159, 2011 ranks 2 (1 = fails least for its age). 2010: index 95.6. 2012: index 87.4.

Alfa Romeo 159 build years: index against the model at the same age (2019–2024)
Build year	Index (100 = normal)	95% interval	Verdict	Tests
2006	101.6	96.0–107.2	no different (rough estimate)	2,719
2007	100.3	96.9–103.7	no different	7,359
2008	100.2	96.5–103.8	no different	6,437
2009	99.9	96.2–103.7	no different	6,192
2010	95.6	91.3–99.9	better	4,758
2011	95.3	89.9–100.7	no different (rough estimate)	3,067
2012	87.4	74.2–100.6	no different (rough estimate)	489

Source: DVSA MOT bulk data · Window: 2019–2024 · n = 31,021 (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). Alfa Romeo 159 2011 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/alfa-romeo-159/2011/

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.

Alfa Romeo 159 2011: MOT failure rate for its age

How does the 2011 Alfa Romeo 159 fail at each age?

What fails most on the 2011 Alfa Romeo 159?

How does 2011 compare with the years around it?

How to cite this page

Related pages

Other pages for this model