Aston Martin DB11 2018: MOT failure rate for its age
4.4% of 2,609 MOT tests of the Aston Martin DB11 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 86.4 (95% CI 70.6–102.2; 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. This is a rough estimate from a smaller sample.
| Measure | Value | Unit | Compared with | Years | Tests |
|---|---|---|---|---|---|
| Failed first time | 4.4 | % | all ages tested | 2019–2024 | 2609 |
| Index against this model at the same age (95% CI 70.6–102.2) | 86.4 | index | 100 = normal for this model at that age | 2019–2024 | 2609 |
| Rank among this model's 5 build years | 2 | of 5 | 1 = fails least for its age | 2019–2024 | 2609 |
| Tested in 2024 | 644 | tests | median 17,516 miles | 2024 | 644 |
Data release dvsa-2024-v2 (24 Sep 2026) · page updated 30 Sep 2026 · full dataset (v5).
How does the 2018 Aston Martin DB11 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 | 652 | 4 | 2.7–5.8 | 4.7 | 84.5 |
| 4 | 668 | 4 | 2.8–5.8 | 5.6 | 72 |
| 5 | 645 | 4.8 | 3.4–6.7 | 4.9 | 98.9 |
| 6 | 644 | 4.8 | 3.4–6.8 | 5.2 | 92.6 |
Source: DVSA MOT bulk data · Window: 2019–2024 · n = 2,609 (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 Aston Martin DB11?
The most common failure group on cars built in 2018 is tyres: 1.7 items per 100 first tests, against 2 across all build years of the Aston Martin DB11. 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 |
|---|---|---|---|
| Tyres | 1.7 | 2 | 46 |
| Visibility | 1.4 | 1.4 | 36 |
| Lamps, reflectors and electrical equipment | 1.3 | 2.1 | 34 |
Source: DVSA MOT bulk data · Window: 2019–2024 · n = 2,638 (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 5 published build years of the Aston Martin DB11, 2018 ranks 2 (1 = fails least for its age). 2017: index 110.0. 2019: index 109.3.
| Build year | Index (100 = normal) | 95% interval | Verdict | Tests |
|---|---|---|---|---|
| 2016 | 110.7 | 71.7–149.6 | no different (rough estimate) | 523 |
| 2017 | 110.0 | 95.6–124.4 | no different (rough estimate) | 3,890 |
| 2018 | 86.4 | 70.6–102.2 | no different (rough estimate) | 2,609 |
| 2019 | 109.3 | 85.9–132.6 | no different (rough estimate) | 1,533 |
| 2020 | 68.2 | 36.7–99.8 | better (rough estimate) | 517 |
Source: DVSA MOT bulk data · Window: 2019–2024 · n = 9,072 (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). Aston Martin DB11 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/aston-martin-db11/2018/
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
Aston Martin DB11 2016 · Aston Martin DB11 2017 · Aston Martin DB11 2019 · Aston Martin DB11 2020 · Aston Martin DB11 by postcode area · Aston Martin DB11 vehicle identification failures · Aston Martin DB11 lamps, reflectors and electrics failures · Aston Martin DB11 noise, emissions and leaks failures · Aston Martin DB11 tyres failures · Aston Martin DB11 visibility failures