LTI TX4 2014: MOT failure rate for its age
40.2% of 13,139 MOT tests of the LTI TX4 first registered in 2014 failed at the first attempt (2019–2024; retests excluded). Against this model's own normal rate at the same ages the index is 106.1 (95% CI 103.2–108.9; 100 = normal for this model at that age): the 2014 LTI TX4 fails more often than other build years of the same model at the same age.
| Measure | Value | Unit | Compared with | Years | Tests |
|---|---|---|---|---|---|
| Failed first time | 40.2 | % | all ages tested | 2019–2024 | 13139 |
| Index against this model at the same age (95% CI 103.2–108.9) | 106.1 | index | 100 = normal for this model at that age | 2019–2024 | 13139 |
| Rank among this model's 12 build years | 12 | of 12 | 1 = fails least for its age | 2019–2024 | 13139 |
| Tested in 2024 | 2263 | tests | median 207,067 miles | 2024 | 2263 |
Data release dvsa-2024-v2 (24 Sep 2026) · page updated 30 Sep 2026 · full dataset (v5).
How does the 2014 LTI TX4 fail at each age?
Cars built in 2014 were tested at ages 5 to 10 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) |
|---|---|---|---|---|---|
| 5 | 2,414 | 42.1 | 40.2–44.1 | 38.9 | 108.4 |
| 6 | 1,699 | 39.1 | 36.8–41.4 | 36.6 | 106.9 |
| 7 | 2,178 | 39.8 | 37.8–41.9 | 36.6 | 108.7 |
| 8 | 2,290 | 41.2 | 39.2–43.2 | 37.9 | 108.7 |
| 9 | 2,295 | 38.6 | 36.6–40.6 | 38.7 | 99.9 |
| 10 | 2,263 | 40.2 | 38.2–42.2 | 38.5 | 104.2 |
Source: DVSA MOT bulk data · Window: 2019–2024 · n = 13,139 (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 2014 LTI TX4?
The most common failure group on cars built in 2014 is suspension: 37.4 items per 100 first tests, against 31.8 across all build years of the LTI TX4. These counts are not age-adjusted: cars built in 2014 were tested at ages 5 to 10.
| Failure group | Built 2014, per 100 | All build years, per 100 | Items |
|---|---|---|---|
| Suspension | 37.4 | 31.8 | 4,908 |
| Lamps, reflectors and electrical equipment | 23.2 | 23.1 | 3,050 |
| Brakes | 14.1 | 16.5 | 1,858 |
| Visibility | 8.3 | 7.5 | 1,092 |
| Noise, emissions and leaks | 7.9 | 6.6 | 1,037 |
Source: DVSA MOT bulk data · Window: 2019–2024 · n = 13,139 (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 2014 compare with the years around it?
Among the 12 published build years of the LTI TX4, 2014 ranks 12 (1 = fails least for its age). 2013: index 101.9. 2015: index 95.2.
| Build year | Index (100 = normal) | 95% interval | Verdict | Tests |
|---|---|---|---|---|
| 2006 | 97.3 | 89.0–105.6 | no different (rough estimate) | 1,300 |
| 2007 | 98.1 | 95.1–101.1 | no different | 10,082 |
| 2008 | 99.9 | 96.2–103.5 | no different | 7,092 |
| 2009 | 98.5 | 95.1–101.9 | no different | 8,282 |
| 2010 | 99.9 | 96.8–103.0 | no different | 9,839 |
| 2011 | 103.6 | 100.5–106.8 | worse | 10,139 |
| 2012 | 99.7 | 96.1–103.3 | no different | 7,530 |
| 2013 | 101.9 | 98.2–105.7 | no different | 7,183 |
| 2014 | 106.1 | 103.2–108.9 | worse | 13,139 |
| 2015 | 95.2 | 92.3–98.0 | better | 12,066 |
| 2016 | 91.7 | 88.4–94.9 | better | 9,370 |
| 2017 | 91.8 | 87.3–96.4 | better | 5,131 |
Source: DVSA MOT bulk data · Window: 2019–2024 · n = 101,153 (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). LTI TX4 2014 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/london-taxis-int-tx4/2014/
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
LTI TX4 2006 · LTI TX4 2007 · LTI TX4 2008 · LTI TX4 2009 · LTI TX4 2010 · LTI TX4 2011 · LTI TX4 2012 · LTI TX4 2013 · LTI TX4 2015 · LTI TX4 2016 · LTI TX4 2017 · LTI TX4 by postcode area · LTI TX4 body, chassis and structure failures · LTI TX4 brakes failures · LTI TX4 vehicle identification failures · LTI TX4 lamps, reflectors and electrics failures · LTI TX4 noise, emissions and leaks failures · LTI TX4 road wheels failures · LTI TX4 seat belts and airbags failures · LTI TX4 steering failures · LTI TX4 suspension failures · LTI TX4 tyres failures · LTI TX4 visibility failures