Mercedes-Benz Citan 2018: MOT failure rate for its age

32.9% of 14,643 MOT tests of the Mercedes-Benz Citan first registered in 2018 failed at the first attempt (2019–2024; retests excluded). Against this model's own normal rate at the same ages the index is 108.7 (95% CI 105.6–111.7; 100 = normal for this model at that age): the 2018 Mercedes-Benz Citan fails more often than other build years of the same model at the same age.

Mercedes-Benz Citan built in 2018 at a glance
Measure	Value	Unit	Compared with	Years	Tests
Failed first time	32.9	%	all ages tested	2019–2024	14643
Index against this model at the same age (95% CI 105.6–111.7)	108.7	index	100 = normal for this model at that age	2019–2024	14643
Rank among this model's 8 build years	7	of 8	1 = fails least for its age	2019–2024	14643
Tested in 2024	3583	tests	median 79,121 miles	2024	3583

Built 2018 against Mercedes-Benz Citan normal for the age: first-time MOT failure share at each age, age 3: 27.8% vs 25.9%; age 4: 32.3% vs 28.2%; age 5: 34.5% vs 32%; age 6: 37% vs 35%. Axis from 0% to 40%. DVSA MOT bulk data, 2019–2024.

Check a 2018 Mercedes-Benz Citan by registration · All Mercedes-Benz Citan 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 2018 Mercedes-Benz Citan fail at each age?

Cars built in 2018 were tested at ages 3 to 6 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.

Mercedes-Benz Citan built 2018: 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)
3	3,648	27.8	26.4–29.3	25.9	107.5
4	3,719	32.3	30.8–33.8	28.2	114.5
5	3,693	34.5	33–36	32	107.7
6	3,583	37	35.4–38.6	35	105.6

Source: DVSA MOT bulk data · Window: 2019–2024 · n = 14,643 (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 2018 Mercedes-Benz Citan?

The most common failure group on cars built in 2018 is lamps, reflectors and electrical equipment: 25 items per 100 first tests, against 26.9 across all build years of the Mercedes-Benz Citan. These counts are not age-adjusted: cars built in 2018 were tested at ages 3 to 6.

Failure items per 100 first tests, Mercedes-Benz Citan built 2018 against the Mercedes-Benz Citan in all build years (2019–2024, not age-adjusted)
Failure group	Built 2018, per 100	All build years, per 100	Items
Lamps, reflectors and electrical equipment	25	26.9	3,695
Visibility	15.2	15.6	2,237
Brakes	11.5	15.5	1,695
Tyres	10.8	10.6	1,592
Body, chassis, structure	4.3	7	638

Source: DVSA MOT bulk data · Window: 2019–2024 · n = 14,757 (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 2018 compare with the years around it?

Among the 8 published build years of the Mercedes-Benz Citan, 2018 ranks 7 (1 = fails least for its age). 2017: index 97.7. 2019: index 103.0.

Mercedes-Benz Citan build years: index against the model at the same age (2019–2024)
Build year	Index (100 = normal)	95% interval	Verdict	Tests
2013	102.1	98.9–105.2	no different	9,551
2014	103.0	100.3–105.7	worse	13,689
2015	93.2	90.7–95.7	better	15,310
2016	100.4	98.0–102.7	no different	20,716
2017	97.7	95.1–100.3	no different	17,675
2018	108.7	105.6–111.7	worse	14,643
2019	103.0	98.2–107.8	no different	5,950
2020	119.6	111.6–127.6	worse (rough estimate)	2,689

Source: DVSA MOT bulk data · Window: 2019–2024 · n = 100,223 (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). Mercedes-Benz Citan 2018 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/mercedes-citan/2018/

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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