Dacia Duster 2018: MOT failure rate for its age
20.4% of 34,723 MOT tests of the Dacia Duster 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 103.0 (95% CI 100.6–105.4; 100 = normal for this model at that age): close to other build years of the same model at the same age (within 5 points of normal).
| Measure | Value | Unit | Compared with | Years | Tests |
|---|---|---|---|---|---|
| Failed first time | 20.4 | % | all ages tested | 2019–2024 | 34723 |
| Index against this model at the same age (95% CI 100.6–105.4) | 103.0 | index | 100 = normal for this model at that age | 2019–2024 | 34723 |
| Rank among this model's 8 build years | 4 | of 8 | 1 = fails least for its age | 2019–2024 | 34723 |
| Tested in 2024 | 8621 | tests | median 43,149 miles | 2024 | 8621 |
Data release dvsa-2024-v2 (24 Sep 2026) · page updated 30 Sep 2026 · full dataset (v5).
How does the 2018 Dacia Duster 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.
| Age | Tests | Failed, % | 95% interval | Normal for this model at that age, % | Index (100 = normal) |
|---|---|---|---|---|---|
| 3 | 8,733 | 15.6 | 14.8–16.3 | 15.4 | 100.8 |
| 4 | 8,724 | 17.4 | 16.7–18.3 | 17.4 | 100 |
| 5 | 8,645 | 22.5 | 21.6–23.3 | 21.5 | 104.3 |
| 6 | 8,621 | 26.1 | 25.2–27 | 24.7 | 105.5 |
Source: DVSA MOT bulk data · Window: 2019–2024 · n = 34,723 (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 Dacia Duster?
The most common failure group on cars built in 2018 is lamps, reflectors and electrical equipment: 7.6 items per 100 first tests, against 11.9 across all build years of the Dacia Duster. These counts are not age-adjusted: cars built in 2018 were tested at ages 3 to 6.
| Failure group | Built 2018, per 100 | All build years, per 100 | Items |
|---|---|---|---|
| Lamps, reflectors and electrical equipment | 7.6 | 11.9 | 2,664 |
| Visibility | 7.5 | 7.5 | 2,612 |
| Tyres | 4.5 | 5.4 | 1,571 |
| Brakes | 3 | 9 | 1,064 |
| Steering | 1.4 | 1.6 | 482 |
Source: DVSA MOT bulk data · Window: 2019–2024 · n = 35,034 (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 8 published build years of the Dacia Duster, 2018 ranks 4 (1 = fails least for its age). 2017: index 89.7. 2019: index 109.9.
| Build year | Index (100 = normal) | 95% interval | Verdict | Tests |
|---|---|---|---|---|
| 2013 | 106.4 | 104.7–108.1 | worse | 40,531 |
| 2014 | 104.7 | 102.8–106.7 | worse | 35,302 |
| 2015 | 96.1 | 94.2–98.1 | better | 35,661 |
| 2016 | 93.2 | 91.3–95.1 | better | 42,568 |
| 2017 | 89.7 | 87.5–91.8 | better | 33,661 |
| 2018 | 103.0 | 100.6–105.4 | worse | 34,723 |
| 2019 | 109.9 | 107.7–112.2 | worse | 45,376 |
| 2020 | 111.4 | 107.4–115.4 | worse | 16,780 |
Source: DVSA MOT bulk data · Window: 2019–2024 · n = 284,602 (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). Dacia Duster 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/dacia-duster/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.
Other pages for this model
Dacia Duster 2013 · Dacia Duster 2014 · Dacia Duster 2015 · Dacia Duster 2016 · Dacia Duster 2017 · Dacia Duster 2019 · Dacia Duster 2020 · Dacia Duster in Norway · Dacia Duster in Finland · Dacia Duster in the Netherlands · Dacia Duster by postcode area · Dacia Duster body, chassis and structure failures · Dacia Duster brakes failures · Dacia Duster vehicle identification failures · Dacia Duster lamps, reflectors and electrics failures · Dacia Duster noise, emissions and leaks failures · Dacia Duster road wheels failures · Dacia Duster seat belts and airbags failures · Dacia Duster steering failures · Dacia Duster suspension failures · Dacia Duster tyres failures · Dacia Duster visibility failures