Lexus RX 2018: MOT failure rate for its age
5.2% of 7,630 MOT tests of the Lexus RX 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 80.0 (95% CI 72.1–87.8; 100 = normal for this model at that age): the 2018 Lexus RX fails less often than other build years of the same model at the same age.
| Measure | Value | Unit | Compared with | Years | Tests |
|---|---|---|---|---|---|
| Failed first time | 5.2 | % | all ages tested | 2019–2024 | 7630 |
| Index against this model at the same age (95% CI 72.1–87.8) | 80.0 | index | 100 = normal for this model at that age | 2019–2024 | 7630 |
| Rank among this model's 21 build years | 1 | of 21 | 1 = fails least for its age | 2019–2024 | 7630 |
| Tested in 2024 | 1740 | tests | median 44,388 miles | 2024 | 1740 |
Data release dvsa-2024-v2 (24 Sep 2026) · page updated 30 Sep 2026 · full dataset (v5).
How does the 2018 Lexus RX 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 | 2,063 | 4.7 | 3.8–5.6 | 4.7 | 99.5 |
| 4 | 1,973 | 5.8 | 4.8–6.9 | 6.1 | 95.5 |
| 5 | 1,854 | 4.9 | 4–5.9 | 7.3 | 66.2 |
| 6 | 1,740 | 5.7 | 4.7–6.9 | 8.4 | 67.4 |
Source: DVSA MOT bulk data · Window: 2019–2024 · n = 7,630 (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 Lexus RX?
The most common failure group on cars built in 2018 is tyres: 3.1 items per 100 first tests, against 5.9 across all build years of the Lexus RX. 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 | 3.1 | 5.9 | 240 |
| Visibility | 2.9 | 6.8 | 223 |
| Suspension | 0.9 | 11.9 | 68 |
| Lamps, reflectors and electrical equipment | 0.5 | 10.8 | 40 |
| Brakes | 0.4 | 9.3 | 33 |
Source: DVSA MOT bulk data · Window: 2019–2024 · n = 7,708 (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 21 published build years of the Lexus RX, 2018 ranks 1 (1 = fails least for its age). 2017: index 86.1. 2019: index 95.5.
| Build year | Index (100 = normal) | 95% interval | Verdict | Tests |
|---|---|---|---|---|
| 2000 | 117.2 | 94.3–140.2 | no different (rough estimate) | 255 |
| 2001 | 117.4 | 107.7–127.1 | worse (rough estimate) | 1,432 |
| 2002 | 122.9 | 114.5–131.2 | worse (rough estimate) | 2,052 |
| 2003 | 105.4 | 100.6–110.2 | worse | 5,426 |
| 2004 | 102.6 | 99.3–105.9 | no different | 11,416 |
| 2005 | 104.0 | 101.1–106.9 | worse | 15,534 |
| 2006 | 99.6 | 96.8–102.4 | no different | 16,925 |
| 2007 | 102.9 | 100.1–105.6 | worse | 19,481 |
| 2008 | 97.4 | 94.3–100.5 | no different | 15,850 |
| 2009 | 96.3 | 93.0–99.6 | better | 14,736 |
| 2010 | 102.9 | 99.4–106.4 | no different | 15,288 |
| 2011 | 109.4 | 104.9–113.9 | worse | 10,834 |
| 2012 | 97.1 | 92.5–101.7 | no different | 10,486 |
| 2013 | 89.8 | 85.1–94.5 | better | 11,049 |
| 2014 | 103.1 | 97.4–108.9 | no different | 9,970 |
| 2015 | 101.9 | 94.9–108.9 | no different | 7,843 |
| 2016 | 87.7 | 82.3–93.0 | better | 14,192 |
| 2017 | 86.1 | 79.5–92.6 | better | 10,637 |
| 2018 | 80.0 | 72.1–87.8 | better | 7,630 |
| 2019 | 95.5 | 86.1–104.9 | no different | 7,021 |
| 2020 | 84.7 | 71.5–97.9 | better (rough estimate) | 3,539 |
Source: DVSA MOT bulk data · Window: 2019–2024 · n = 211,596 (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). Lexus RX 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/lexus-rx/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
Lexus RX 2000 · Lexus RX 2001 · Lexus RX 2002 · Lexus RX 2003 · Lexus RX 2004 · Lexus RX 2005 · Lexus RX 2006 · Lexus RX 2007 · Lexus RX 2008 · Lexus RX 2009 · Lexus RX 2010 · Lexus RX 2011 · Lexus RX 2012 · Lexus RX 2013 · Lexus RX 2014 · Lexus RX 2015 · Lexus RX 2016 · Lexus RX 2017 · Lexus RX 2019 · Lexus RX 2020 · Lexus RX in Finland · Lexus RX by postcode area · Lexus RX body, chassis and structure failures · Lexus RX brakes failures · Lexus RX vehicle identification failures · Lexus RX lamps, reflectors and electrics failures · Lexus RX noise, emissions and leaks failures · Lexus RX road wheels failures · Lexus RX seat belts and airbags failures · Lexus RX steering failures · Lexus RX suspension failures · Lexus RX tyres failures · Lexus RX visibility failures