Renault Grand Scenic 2018: MOT failure rate for its age

25.0% of 2,732 MOT tests of the Renault Grand Scenic 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 108.4 (95% CI 100.2–116.5; 100 = normal for this model at that age): the 2018 Renault Grand Scenic fails more often than other build years of the same model at the same age. This is a rough estimate from a smaller sample.

Renault Grand Scenic built in 2018 at a glance
Measure	Value	Unit	Compared with	Years	Tests
Failed first time	25.0	%	all ages tested	2019–2024	2732
Index against this model at the same age (95% CI 100.2–116.5)	108.4	index	100 = normal for this model at that age	2019–2024	2732
Rank among this model's 17 build years	16	of 17	1 = fails least for its age	2019–2024	2732
Tested in 2024	656	tests	median 49,417 miles	2024	656

Built 2018 against Renault Grand Scenic normal for the age: first-time MOT failure share at each age, age 3: 24.5% vs 19.8%; age 4: 21.2% vs 19.9%; age 5: 25.6% vs 24.8%; age 6: 29.1% vs 28.2%. Axis from 0% to 30%. DVSA MOT bulk data, 2019–2024.

Check a 2018 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 2018 Renault Grand Scenic 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.

Renault Grand Scenic 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	703	24.5	21.4–27.8	19.8	123.3
4	693	21.2	18.3–24.4	19.9	106.6
5	680	25.6	22.5–29	24.8	103.2
6	656	29.1	25.8–32.7	28.2	103.2

Source: DVSA MOT bulk data · Window: 2019–2024 · n = 2,732 (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 Renault Grand Scenic?

The most common failure group on cars built in 2018 is tyres: 12.6 items per 100 first tests, against 11.8 across all build years of the Renault Grand Scenic. These counts are not age-adjusted: cars built in 2018 were tested at ages 3 to 6.

Failure items per 100 first tests, Renault Grand Scenic built 2018 against the Renault Grand Scenic in all build years (2019–2024, not age-adjusted)
Failure group	Built 2018, per 100	All build years, per 100	Items
Tyres	12.6	11.8	352
Lamps, reflectors and electrical equipment	7.6	42.9	213
Suspension	7.6	28.5	212
Brakes	5.1	19.5	144
Visibility	4.3	11.6	121

Source: DVSA MOT bulk data · Window: 2019–2024 · n = 2,802 (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 17 published build years of the Renault Grand Scenic, 2018 ranks 16 (1 = fails least for its age). 2017: index 97.6. 2019: index 113.8.

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 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/renault-grand-scenic/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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