MOT Risk Index.co.uk

Lexus CT 2011: MOT failure rate for its age

20.8% of 22,789 MOT tests of the Lexus CT first registered in 2011 failed at the first attempt (2019–2024; retests excluded). Against this model's own normal rate at the same ages the index is 105.5 (95% CI 102.5–108.5; 100 = normal for this model at that age): the 2011 Lexus CT fails more often than other build years of the same model at the same age.

Lexus CT built in 2011 at a glance
MeasureValueUnitCompared withYearsTests
Failed first time20.8%all ages tested2019–202422789
Index against this model at the same age (95% CI 102.5–108.5)105.5index100 = normal for this model at that age2019–202422789
Rank among this model's 10 build years8of 101 = fails least for its age2019–202422789
Tested in 20243774testsmedian 100,135 miles20243774
line · Lexus CT built 2011 · first-time MOT failure share by age · built 2011 20.5% vs model normal 18.3% at age 8 · 2019–2024
Built 2011 against Lexus CT normal for the age: first-time MOT failure share at each age, age 8: 20.5% vs 18.3%; age 9: 19% vs 17.5%; age 10: 20.2% vs 18.2%; age 11: 19.9% vs 19.9%; age 12: 21.1% vs 21.2%; age 13: 24.3% vs 23.5%. Axis from 0% to 30%. DVSA MOT bulk data, 2019–2024.
Check a 2011 Lexus CT by registration · All Lexus CT MOT statistics · Download the build-year table (CSV)

Data release dvsa-2024-v2 (24 Sep 2026) · page updated 30 Sep 2026 · full dataset (v5).

How does the 2011 Lexus CT fail at each age?

Cars built in 2011 were tested at ages 8 to 13 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.

Lexus CT built 2011: first-time MOT failure by age, against the model's normal rate at that age (2019–2024)
AgeTestsFailed, %95% intervalNormal for this model at that age, %Index (100 = normal)
83,91420.519.3–21.818.3112.1
93,7331917.7–20.317.5108.1
103,79020.218.9–21.518.2111.1
113,79419.918.7–21.219.9100.3
123,78421.119.9–22.521.299.8
133,77424.323–25.723.5103.5

Source: DVSA MOT bulk data · Window: 2019–2024 · n = 22,789 (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 2011 Lexus CT?

The most common failure group on cars built in 2011 is lamps, reflectors and electrical equipment: 11.4 items per 100 first tests, against 6 across all build years of the Lexus CT. These counts are not age-adjusted: cars built in 2011 were tested at ages 8 to 13.

Failure items per 100 first tests, Lexus CT built 2011 against the Lexus CT in all build years (2019–2024, not age-adjusted)
Failure groupBuilt 2011, per 100All build years, per 100Items
Lamps, reflectors and electrical equipment11.462,604
Tyres7.86.11,769
Visibility6.65.31,497
Brakes6.53.71,470
Suspension51.71,148

Source: DVSA MOT bulk data · Window: 2019–2024 · n = 22,789 (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 2011 compare with the years around it?

Among the 10 published build years of the Lexus CT, 2011 ranks 8 (1 = fails least for its age). 2012: index 106.7.

Lexus CT build years: index against the model at the same age (2019–2024)
Build yearIndex (100 = normal)95% intervalVerdictTests
2011105.5102.5–108.5worse22,789
2012106.7103.7–109.6worse25,535
2013119.8116.3–123.4worse22,304
201487.184.0–90.2better22,927
201593.790.2–97.1better21,232
201693.189.1–97.2better17,873
201787.983.5–92.4better15,524
201893.087.5–98.6better11,044
201997.889.5–106.2no different5,812
202096.283.0–109.4no different (rough estimate)2,559

Source: DVSA MOT bulk data · Window: 2019–2024 · n = 167,599 (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 CT 2011 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-ct/2011/

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 CT 2012 · Lexus CT 2013 · Lexus CT 2014 · Lexus CT 2015 · Lexus CT 2016 · Lexus CT 2017 · Lexus CT 2018 · Lexus CT 2019 · Lexus CT 2020 · Lexus CT in Finland · Lexus CT by postcode area · Lexus CT body, chassis and structure failures · Lexus CT brakes failures · Lexus CT vehicle identification failures · Lexus CT lamps, reflectors and electrics failures · Lexus CT noise, emissions and leaks failures · Lexus CT road wheels failures · Lexus CT seat belts and airbags failures · Lexus CT steering failures · Lexus CT suspension failures · Lexus CT tyres failures · Lexus CT visibility failures