Mercedes-Benz R-Class 2010: MOT failure rate for its age

30.6% of 470 MOT tests of the Mercedes-Benz R-Class first registered in 2010 failed at the first attempt (2019–2024; retests excluded). Against this model's own normal rate at the same ages the index is 91.6 (95% CI 76.6–106.5; 100 = normal for this model at that age): the 2010 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.

Mercedes-Benz R-Class built in 2010 at a glance
Measure	Value	Unit	Compared with	Years	Tests
Failed first time	30.6	%	all ages tested	2019–2024	470
Index against this model at the same age (95% CI 76.6–106.5)	91.6	index	100 = normal for this model at that age	2019–2024	470
Rank among this model's 6 build years	2	of 6	1 = fails least for its age	2019–2024	470
Tested in 2024	219	tests	median 123,638 miles	2024	219

Built 2010 against Mercedes-Benz R-Class normal for the age: first-time MOT failure share at each age, age 11: 31.6% vs n/a%; age 12: 31.5% vs n/a%; age 13: 27.9% vs 34.1%; age 14: 33.8% vs 32.7%. Axis from 0% to 40%. DVSA MOT bulk data, 2019–2024.

Check a 2010 Mercedes-Benz R-Class by registration · All Mercedes-Benz R-Class 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 2010 Mercedes-Benz R-Class fail at each age?

Cars built in 2010 were tested at ages 11 to 14 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 R-Class built 2010: 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)
11	263 (rough estimate)	31.6	26.2–37.4	not available	not available
12	257 (rough estimate)	31.5	26.1–37.4	not available	not available
13	251 (rough estimate)	27.9	22.7–33.7	34.1	81.7
14	219 (rough estimate)	33.8	27.9–40.3	32.7	103.3

Source: DVSA MOT bulk data · Window: 2019–2024 · n = 990 (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 2010 Mercedes-Benz R-Class?

The most common failure group on cars built in 2010 is body, chassis, structure: 22.6 items per 100 first tests, against 19.4 across all build years of the Mercedes-Benz R-Class. These counts are not age-adjusted: cars built in 2010 were tested at ages 11 to 14.

Failure items per 100 first tests, Mercedes-Benz R-Class built 2010 against the Mercedes-Benz R-Class in all build years (2019–2024, not age-adjusted)
Failure group	Built 2010, per 100	All build years, per 100	Items
Body, chassis, structure	22.6	19.4	224
Brakes	16	20.3	158
Lamps, reflectors and electrical equipment	14.8	18.6	147
Tyres	7.3	7.3	72
Visibility	6.6	7	65

Source: DVSA MOT bulk data · Window: 2019–2024 · n = 990 (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 2010 compare with the years around it?

Among the 6 published build years of the Mercedes-Benz R-Class, 2010 ranks 2 (1 = fails least for its age). 2009: index 99.7. 2011: index 88.5.

Mercedes-Benz R-Class build years: index against the model at the same age (2019–2024)
Build year	Index (100 = normal)	95% interval	Verdict	Tests
2006	99.4	88.8–109.9	no different (rough estimate)	1,017
2007	103.5	94.6–112.3	no different (rough estimate)	1,522
2008	96.0	87.2–104.8	no different (rough estimate)	1,424
2009	99.7	86.3–113.0	no different (rough estimate)	647
2010	91.6	76.6–106.5	no different (rough estimate)	470
2011	88.5	76.1–101.0	no different (rough estimate)	746

Source: DVSA MOT bulk data · Window: 2019–2024 · n = 5,826 (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 R-Class 2010 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-r-class/2010/

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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