Suzuki SX4 2020: MOT failure rate for its age

9.3% of 770 MOT tests of the Suzuki SX4 first registered in 2020 failed at the first attempt (2019–2024; retests excluded). Against this model's own normal rate at the same ages the index is 84.7 (95% CI 65.1–104.2; 100 = normal for this model at that age): the 2020 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.

Suzuki SX4 built in 2020 at a glance
Measure	Value	Unit	Compared with	Years	Tests
Failed first time	9.3	%	all ages tested	2019–2024	770
Index against this model at the same age (95% CI 65.1–104.2)	84.7	index	100 = normal for this model at that age	2019–2024	770
Rank among this model's 15 build years	2	of 15	1 = fails least for its age	2019–2024	770
Tested in 2024	379	tests	median 24,351 miles	2024	379

Built 2020 against Suzuki SX4 normal for the age: first-time MOT failure share at each age, age 3: 9.7% vs 10.4%; age 4: 9% vs 11.7%. Axis from 0% to 20%. DVSA MOT bulk data, 2019–2024.

Check a 2020 Suzuki SX4 by registration · All Suzuki SX4 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 2020 Suzuki SX4 fail at each age?

Cars built in 2020 were tested at ages 3 to 4 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.

Suzuki SX4 built 2020: 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	391 (rough estimate)	9.7	7.2–13.1	10.4	93.4
4	379 (rough estimate)	9	6.5–12.3	11.7	76.7

Source: DVSA MOT bulk data · Window: 2019–2024 · n = 770 (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 2020 Suzuki SX4?

The most common failure group on cars built in 2020 is visibility: 4.5 items per 100 first tests, against 8.2 across all build years of the Suzuki SX4. These counts are not age-adjusted: cars built in 2020 were tested at ages 3 to 4.

Failure items per 100 first tests, Suzuki SX4 built 2020 against the Suzuki SX4 in all build years (2019–2024, not age-adjusted)
Failure group	Built 2020, per 100	All build years, per 100	Items
Visibility	4.5	8.2	35

Source: DVSA MOT bulk data · Window: 2019–2024 · n = 785 (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 2020 compare with the years around it?

Among the 15 published build years of the Suzuki SX4, 2020 ranks 2 (1 = fails least for its age). 2019: index 83.8.

Suzuki SX4 build years: index against the model at the same age (2019–2024)
Build year	Index (100 = normal)	95% interval	Verdict	Tests
2006	106.9	103.6–110.2	worse	7,919
2007	100.4	98.3–102.6	no different	18,030
2008	99.2	97.1–101.4	no different	18,660
2009	104.6	102.0–107.3	worse	13,765
2010	104.5	101.7–107.3	worse	13,255
2011	109.1	106.3–112.0	worse	14,201
2012	122.9	119.4–126.4	worse	12,278
2013	106.7	103.9–109.4	worse	20,443
2014	90.5	88.5–92.5	better	39,367
2015	88.4	85.6–91.2	better	22,918
2016	91.1	87.9–94.3	better	20,632
2017	91.9	88.2–95.7	better	17,180
2018	92.7	87.7–97.6	better	11,009
2019	83.8	77.3–90.4	better	6,161
2020	84.7	65.1–104.2	no different (rough estimate)	770

Source: DVSA MOT bulk data · Window: 2019–2024 · n = 236,588 (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). Suzuki SX4 2020 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/suzuki-sx4/2020/

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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