Audi S3 2015: MOT failure rate for its age
10.7% of 756 MOT tests of the Audi S3 first registered in 2015 failed at the first attempt (2019–2024; retests excluded). Against this model's own normal rate at the same ages the index is 94.8 (95% CI 74.1–115.4; 100 = normal for this model at that age): the 2015 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 | 10.7 | % | all ages tested | 2019–2024 | 756 |
| Index against this model at the same age (95% CI 74.1–115.4) | 94.8 | index | 100 = normal for this model at that age | 2019–2024 | 756 |
| Rank among this model's 9 build years | 1 | of 9 | 1 = fails least for its age | 2019–2024 | 756 |
| Tested in 2024 | 155 | tests | median 60,901 miles | 2024 | 155 |
Data release dvsa-2024-v2 (24 Sep 2026) · page updated 30 Sep 2026 · full dataset (v5).
How does the 2015 Audi S3 fail at each age?
Cars built in 2015 were tested at ages 4 to 9 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) |
|---|---|---|---|---|---|
| 4 | 105 (rough estimate) | 11.4 | 6.7–18.9 | 9.7 | 117.5 |
| 5 | 100 (rough estimate) | 8 | 4.1–15 | 10.4 | 77.1 |
| 6 | 119 (rough estimate) | 8.4 | 4.6–14.8 | 9.6 | 87.3 |
| 7 | 132 (rough estimate) | 13.6 | 8.8–20.5 | 11.2 | 121.6 |
| 8 | 145 (rough estimate) | 11 | 6.9–17.2 | 11.7 | 94.2 |
| 9 | 155 (rough estimate) | 11 | 7–16.9 | 14 | 78.6 |
Source: DVSA MOT bulk data · Window: 2019–2024 · n = 756 (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 2015 Audi S3?
The most common failure group on cars built in 2015 is tyres: 5.4 items per 100 first tests, against 7.5 across all build years of the Audi S3. These counts are not age-adjusted: cars built in 2015 were tested at ages 4 to 9.
| Failure group | Built 2015, per 100 | All build years, per 100 | Items |
|---|---|---|---|
| Tyres | 5.4 | 7.5 | 41 |
Source: DVSA MOT bulk data · Window: 2019–2024 · n = 756 (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 2015 compare with the years around it?
Among the 9 published build years of the Audi S3, 2015 ranks 1 (1 = fails least for its age). 2014: index 100.5. 2016: index 101.0.
| Build year | Index (100 = normal) | 95% interval | Verdict | Tests |
|---|---|---|---|---|
| 2009 | 112.0 | 93.8–130.2 | no different (rough estimate) | 555 |
| 2010 | 131.3 | 116.2–146.4 | worse (rough estimate) | 1,099 |
| 2011 | 116.9 | 102.3–131.6 | worse (rough estimate) | 1,151 |
| 2012 | 115.6 | 98.1–133.1 | no different (rough estimate) | 878 |
| 2013 | 106.5 | 89.5–123.5 | no different (rough estimate) | 1,118 |
| 2014 | 100.5 | 91.8–109.3 | no different | 4,131 |
| 2015 | 94.8 | 74.1–115.4 | no different (rough estimate) | 756 |
| 2016 | 101.0 | 68.9–133.2 | no different (rough estimate) | 368 |
| 2020 | 100.5 | 80.7–120.2 | no different (rough estimate) | 1,211 |
Source: DVSA MOT bulk data · Window: 2019–2024 · n = 11,267 (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 S3 2015 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-s3/2015/
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 S3 2009 · Audi S3 2010 · Audi S3 2011 · Audi S3 2012 · Audi S3 2013 · Audi S3 2014 · Audi S3 2016 · Audi S3 2020 · Audi S3 in the Netherlands · Audi S3 by postcode area · Audi S3 body, chassis and structure failures · Audi S3 brakes failures · Audi S3 vehicle identification failures · Audi S3 lamps, reflectors and electrics failures · Audi S3 noise, emissions and leaks failures · Audi S3 road wheels failures · Audi S3 seat belts and airbags failures · Audi S3 steering failures · Audi S3 suspension failures · Audi S3 tyres failures · Audi S3 visibility failures