BMW 4 Series 2013: MOT failure rate for its age

18.3% of 9,750 MOT tests of the BMW 4 Series first registered in 2013 failed at the first attempt (2019–2024; retests excluded). Against this model's own normal rate at the same ages the index is 100.8 (95% CI 96.1–105.5; 100 = normal for this model at that age): the 2013 build year is no different from other years of the same model at the same age.

BMW 4 Series built in 2013 at a glance
Measure	Value	Unit	Compared with	Years	Tests
Failed first time	18.3	%	all ages tested	2019–2024	9750
Index against this model at the same age (95% CI 96.1–105.5)	100.8	index	100 = normal for this model at that age	2019–2024	9750
Rank among this model's 8 build years	4	of 8	1 = fails least for its age	2019–2024	9750
Tested in 2024	1569	tests	median 90,518 miles	2024	1569

Built 2013 against BMW 4 Series normal for the age: first-time MOT failure share at each age, age 6: 15.9% vs 15.9%; age 7: 16.8% vs 16.2%; age 8: 15.9% vs 17.1%; age 9: 19.6% vs 18.7%; age 10: 20% vs 20.2%; age 11: 21.6% vs 20.9%. Axis from 0% to 30%. DVSA MOT bulk data, 2019–2024.

Check a 2013 BMW 4 Series by registration · All BMW 4 Series 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 2013 BMW 4 Series fail at each age?

Cars built in 2013 were tested at ages 6 to 11 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.

BMW 4 Series built 2013: 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)
6	1,721	15.9	14.3–17.7	15.9	100.1
7	1,610	16.8	15.1–18.7	16.2	104
8	1,624	15.9	14.2–17.7	17.1	92.9
9	1,625	19.6	17.7–21.6	18.7	104.8
10	1,601	20	18.1–22	20.2	99.1
11	1,569	21.6	19.6–23.7	20.9	103.5

Source: DVSA MOT bulk data · Window: 2019–2024 · n = 9,750 (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 2013 BMW 4 Series?

The most common failure group on cars built in 2013 is tyres: 10.8 items per 100 first tests, against 10.9 across all build years of the BMW 4 Series. These counts are not age-adjusted: cars built in 2013 were tested at ages 6 to 11.

Failure items per 100 first tests, BMW 4 Series built 2013 against the BMW 4 Series in all build years (2019–2024, not age-adjusted)
Failure group	Built 2013, per 100	All build years, per 100	Items
Tyres	10.8	10.9	1,051
Visibility	5.2	4	511
Brakes	5.1	2.7	502
Lamps, reflectors and electrical equipment	4.4	2.2	432
Suspension	3.1	1.4	302

Source: DVSA MOT bulk data · Window: 2019–2024 · n = 9,750 (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 2013 compare with the years around it?

Among the 8 published build years of the BMW 4 Series, 2013 ranks 4 (1 = fails least for its age). 2014: index 106.5.

BMW 4 Series build years: index against the model at the same age (2019–2024)
Build year	Index (100 = normal)	95% interval	Verdict	Tests
2013	100.8	96.1–105.5	no different	9,750
2014	106.5	104.7–108.2	worse	77,602
2015	102.0	100.5–103.5	worse	111,935
2016	99.3	97.8–100.9	no different	114,125
2017	94.1	92.4–95.9	better	94,393
2018	98.9	96.7–101.0	no different	64,988
2019	110.7	107.4–114.0	worse	32,125
2020	102.1	96.2–108.1	no different	9,576

Source: DVSA MOT bulk data · Window: 2019–2024 · n = 514,494 (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). BMW 4 Series 2013 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/bmw-4-series/2013/

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.

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