Renault Grand Scenic 2005: MOT failure rate for its age

57.7% of 11,300 MOT tests of the Renault Grand Scenic first registered in 2005 failed at the first attempt (2019–2024; retests excluded). Against this model's own normal rate at the same ages the index is 101.4 (95% CI 98.9–103.9; 100 = normal for this model at that age): the 2005 build year is no different from other years of the same model at the same age.

Renault Grand Scenic built in 2005 at a glance
Measure	Value	Unit	Compared with	Years	Tests
Failed first time	57.7	%	all ages tested	2019–2024	11300
Index against this model at the same age (95% CI 98.9–103.9)	101.4	index	100 = normal for this model at that age	2019–2024	11300
Rank among this model's 17 build years	12	of 17	1 = fails least for its age	2019–2024	11300
Tested in 2024	453	tests	median 70,502 miles	2024	453

Built 2005 against Renault Grand Scenic normal for the age: first-time MOT failure share at each age, age 14: 60.8% vs 60.7%; age 15: 56.6% vs 55.7%; age 16: 56.1% vs 55.7%; age 17: 55.5% vs 52.3%; age 18: 52.7% vs 50.4%; age 19: 52.3% vs 50.6%. Axis from 0% to 70%. DVSA MOT bulk data, 2019–2024.

Check a 2005 Renault Grand Scenic by registration · All Renault Grand Scenic 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 2005 Renault Grand Scenic fail at each age?

Cars built in 2005 were tested at ages 14 to 19 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.

Renault Grand Scenic built 2005: 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)
14	4,730	60.8	59.4–62.1	60.7	100.1
15	2,628	56.6	54.7–58.5	55.7	101.6
16	1,684	56.1	53.7–58.4	55.7	100.6
17	1,109	55.5	52.5–58.4	52.3	106.1
18	696	52.7	49–56.4	50.4	104.6
19	453 (rough estimate)	52.3	47.7–56.9	50.6	103.5

Source: DVSA MOT bulk data · Window: 2019–2024 · n = 11,300 (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 2005 Renault Grand Scenic?

The most common failure group on cars built in 2005 is lamps, reflectors and electrical equipment: 81 items per 100 first tests, against 42.9 across all build years of the Renault Grand Scenic. These counts are not age-adjusted: cars built in 2005 were tested at ages 14 to 19.

Failure items per 100 first tests, Renault Grand Scenic built 2005 against the Renault Grand Scenic in all build years (2019–2024, not age-adjusted)
Failure group	Built 2005, per 100	All build years, per 100	Items
Lamps, reflectors and electrical equipment	81	42.9	9,151
Suspension	43	28.5	4,860
Brakes	36	19.5	4,071
Visibility	17.3	11.6	1,956
Body, chassis, structure	16.4	8.9	1,856

Source: DVSA MOT bulk data · Window: 2019–2024 · n = 11,300 (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 2005 compare with the years around it?

Among the 17 published build years of the Renault Grand Scenic, 2005 ranks 12 (1 = fails least for its age). 2004: index 102.6. 2006: index 100.1.

Renault Grand Scenic build years: index against the model at the same age (2019–2024)
Build year	Index (100 = normal)	95% interval	Verdict	Tests
2004	102.6	96.4–108.7	no different (rough estimate)	1,858
2005	101.4	98.9–103.9	no different	11,300
2006	100.1	97.7–102.5	no different	11,944
2007	103.0	100.9–105.2	worse	15,688
2008	102.1	99.8–104.5	no different	13,147
2009	96.0	93.5–98.6	better	11,034
2010	98.0	96.5–99.4	better	33,841
2011	98.8	97.1–100.4	no different	28,944
2012	100.6	97.8–103.4	no different	10,568
2013	98.8	93.5–104.1	no different (rough estimate)	3,274
2014	100.4	96.0–104.9	no different	5,251
2015	90.5	87.0–94.0	better	8,711
2016	91.6	87.7–95.5	better	8,166
2017	97.6	92.5–102.6	no different	5,774
2018	108.4	100.2–116.5	worse (rough estimate)	2,732
2019	113.8	105.1–122.5	worse (rough estimate)	2,711
2020	98.0	79.0–117.1	no different (rough estimate)	531

Source: DVSA MOT bulk data · Window: 2019–2024 · n = 175,474 (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). Renault Grand Scenic 2005 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/renault-grand-scenic/2005/

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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