Audi Q8 2018: MOT failure rate for its age
8.8% of 2,416 MOT tests of the Audi Q8 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 101.9 (95% CI 88.2–115.6; 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 | 8.8 | % | all ages tested | 2019–2024 | 2416 |
| Index against this model at the same age (95% CI 88.2–115.6) | 101.9 | index | 100 = normal for this model at that age | 2019–2024 | 2416 |
| Rank among this model's 3 build years | 2 | of 3 | 1 = fails least for its age | 2019–2024 | 2416 |
| Tested in 2024 | 609 | tests | median 51,048 miles | 2024 | 609 |
Data release dvsa-2024-v2 (24 Sep 2026) · page updated 30 Sep 2026 · full dataset (v5).
How does the 2018 Audi Q8 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 | 597 | 8.4 | 6.4–10.9 | 8.6 | 97.1 |
| 4 | 603 | 9.5 | 7.4–12.1 | 8.7 | 108.6 |
| 5 | 607 | 9.6 | 7.5–12.2 | 9.7 | 98.9 |
| 6 | 609 | 7.7 | 5.9–10.1 | 7.5 | 103.5 |
Source: DVSA MOT bulk data · Window: 2019–2024 · n = 2,416 (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 Audi Q8?
The most common failure group on cars built in 2018 is tyres: 6.9 items per 100 first tests, against 7.1 across all build years of the Audi Q8. 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 | 6.9 | 7.1 | 167 |
| Visibility | 3.4 | 3.4 | 83 |
| Identification of the vehicle | 1.8 | 1.5 | 43 |
| Brakes | 1.4 | 1.3 | 34 |
Source: DVSA MOT bulk data · Window: 2019–2024 · n = 2,420 (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 3 published build years of the Audi Q8, 2018 ranks 2 (1 = fails least for its age). 2019: index 104.4.
| Build year | Index (100 = normal) | 95% interval | Verdict | Tests |
|---|---|---|---|---|
| 2018 | 101.9 | 88.2–115.6 | no different (rough estimate) | 2,416 |
| 2019 | 104.4 | 95.2–113.7 | no different | 5,268 |
| 2020 | 98.3 | 82.5–114.2 | no different (rough estimate) | 1,762 |
Source: DVSA MOT bulk data · Window: 2019–2024 · n = 9,446 (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). Audi Q8 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/audi-q8/2018/
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
Audi Q8 2019 · Audi Q8 2020 · Audi Q8 in the Netherlands · Audi Q8 by postcode area · Audi Q8 brakes failures · Audi Q8 vehicle identification failures · Audi Q8 lamps, reflectors and electrics failures · Audi Q8 noise, emissions and leaks failures · Audi Q8 suspension failures · Audi Q8 tyres failures · Audi Q8 visibility failures