Peugeot 308 2018: MOT failure rate for its age

17.9% of 34,525 MOT tests of the Peugeot 308 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 102.0 (95% CI 99.4–104.5; 100 = normal for this model at that age): the 2018 build year is no different from other years of the same model at the same age.

Peugeot 308 built in 2018 at a glance
Measure	Value	Unit	Compared with	Years	Tests
Failed first time	17.9	%	all ages tested	2019–2024	34525
Index against this model at the same age (95% CI 99.4–104.5)	102.0	index	100 = normal for this model at that age	2019–2024	34525
Rank among this model's 14 build years	10	of 14	1 = fails least for its age	2019–2024	34525
Tested in 2024	8502	tests	median 49,293 miles	2024	8502

Built 2018 against Peugeot 308 normal for the age: first-time MOT failure share at each age, age 3: 15.1% vs 13.4%; age 4: 15.5% vs 15.7%; age 5: 19.1% vs 19.2%; age 6: 22.1% vs 22.3%. Axis from 0% to 30%. DVSA MOT bulk data, 2019–2024.

Check a 2018 Peugeot 308 by registration · All Peugeot 308 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 Peugeot 308 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.

Peugeot 308 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	8,821	15.1	14.4–15.9	13.4	113.3
4	8,573	15.5	14.8–16.3	15.7	99
5	8,629	19.1	18.3–20	19.2	99.8
6	8,502	22.1	21.2–23	22.3	98.9

Source: DVSA MOT bulk data · Window: 2019–2024 · n = 34,525 (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 Peugeot 308?

The most common failure group on cars built in 2018 is tyres: 9.4 items per 100 first tests, against 10.8 across all build years of the Peugeot 308. These counts are not age-adjusted: cars built in 2018 were tested at ages 3 to 6.

Failure items per 100 first tests, Peugeot 308 built 2018 against the Peugeot 308 in all build years (2019–2024, not age-adjusted)
Failure group	Built 2018, per 100	All build years, per 100	Items
Tyres	9.4	10.8	3,264
Lamps, reflectors and electrical equipment	6.5	21.6	2,282
Brakes	4.1	12.1	1,423
Visibility	3.9	6.4	1,349
Suspension	3.8	12.9	1,330

Source: DVSA MOT bulk data · Window: 2019–2024 · n = 34,862 (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 14 published build years of the Peugeot 308, 2018 ranks 10 (1 = fails least for its age). 2017: index 91.8. 2019: index 92.8.

Peugeot 308 build years: index against the model at the same age (2019–2024)
Build year	Index (100 = normal)	95% interval	Verdict	Tests
2007	106.9	104.1–109.7	worse	10,656
2008	105.2	104.2–106.2	worse	83,980
2009	103.4	102.4–104.3	worse	97,457
2010	100.9	99.9–101.9	no different	92,515
2011	89.6	88.5–90.8	better	66,375
2012	97.5	96.3–98.7	better	67,311
2013	108.6	107.2–109.9	worse	66,502
2014	98.1	96.7–99.4	better	76,497
2015	96.2	94.9–97.5	better	87,511
2016	101.4	99.9–102.8	no different	90,232
2017	91.8	89.9–93.8	better	49,045
2018	102.0	99.4–104.5	no different	34,525
2019	92.8	89.6–96.0	better	21,726
2020	86.2	80.7–91.7	better	7,547

Source: DVSA MOT bulk data · Window: 2019–2024 · n = 851,879 (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). Peugeot 308 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/peugeot-308/2018/

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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