At a glance
How 3,323 first tests went in 2025.
- Passed first time
- 83 in every 100
- Did not pass first time
- 17 in every 100579 failed first-attempt tests
- The typical car
- 10 yearsabout 73,548 miles
- First tests counted
- 3,323
What failed most often
- Headlight (front)13 in every 100 failed tests
- Tyre condition (front)10 in every 100 failed tests
- Tyre pressure monitoring system9 in every 100 failed tests
How we count this. Data: UK MOT open data, 2025. Only Class 4 cars on their first MOT of the year are counted. A car that fails and is fixed at the test station still counts as a fail in the first-attempt rate. These are raw results, not adjusted for age, mileage, or peer mix. The MOT does not test engine or gearbox internals.
These are patterns across 2015 Lexus CT vehicles in 2025, not a prediction that any one car will have them. Faults are grouped by part of the car. They come from MOT defect codes, not manufacturer bulletins, recalls or a diagnosis of any one car.
Lamps and electrical
One fault: headlight (front), 3.9 times as often as on similar cars.
Figures below are measured across the 579 failed first attempts in 2025 that had a mileage recorded, which allows a like-for-like comparison.
We only list faults with at least 20 failures and a rate of about 2.0 times that of similar cars, which keeps one-off results out of the list.
Headlight (front)
What it means
On vehicles first used on or after a set date, a halogen headlamp unit converted to take HID or LED bulbs fails for light source and lamp not compatible, which is Major. A complete unit built with those light sources is not failed for that. The precise position of the lamps is not part of the inspection beyond a visual look to see that they sit at about the same height and distance from each side.
Data: UK MOT open data, 2025. Compared with cars of the same age and mileage.
Visibility
One fault: windscreen wipers (front), 2.4 times as often as on similar cars.
Windscreen wipers (front)
Data: UK MOT open data, 2025. Compared with cars of the same age and mileage.
MOT pass rates
How first tests ended, and how the pass rates are counted.
- Passed first time
- 83in every 100
- Passed on the first test.
- Fixed at the station
- 5in every 100
- Failed, then fixed at the test station the same day.
- Failed
- 12in every 100
- Did not pass, and were not fixed at the test station.
First-attempt pass 82.6% of 3,323 first tests (2025): only cars that passed first time count. Official-style pass 87.9%: cars fixed at the test station also count as a pass. The 5 fixed and the 12 not fixed make the 17 in every 100 that did not pass first time.
Same model, other years
Passed first time in every 100, all tested in 2025.
Newer cars are younger, so look for a jump rather than the climb. A year earlier (2024), when these cars were a year younger, 84 in every 100 passed first time.
| Year | Passed first time | First tests |
|---|---|---|
| 2011 | 77 in every 100 | 3,660 |
| 2012 | 78 in every 100 | 4,083 |
| 2013 | 78 in every 100 | 3,545 |
| 2014 | 83 in every 100 | 3,623 |
| 2015 This car | 83 in every 100 | 3,323 |
| 2016 | 85 in every 100 | 2,777 |
| 2017 | 87 in every 100 | 2,820 |
| 2018 | 88 in every 100 | 2,602 |
| 2019 | 88 in every 100 | 1,816 |
| 2020 | 89 in every 100 | 1,212 |
If you are buying one
What this year's MOT record means for the decision in front of you.
Mileage matters most on a 2015 Lexus CT.
Of 2015 Lexus CT vehicles with under 49,000 miles, 91 in every 100 passed their 2025 MOT first time. With 110,000 miles or more, 79 in every 100 did.
What to check at your mileage
How often each fault turned up on a failed first test, by the car's mileage. Read it as: what is likely to need looking at on a car like the one in front of you.
| Under 49,000 | 65,000–83,000 | 110,000 and over | |
|---|---|---|---|
| Headlight (front) | 0.4 | 2.9 | 2.3 |
| Tyre condition (front) | 1.0 | 1.7 | 2.1 |
| Tyre pressure monitoring system | 0.9 | 1.4 | 2.3 |
Faults per 100 first tests, by the car's mileage at the test.
When a car fails
of failed cars had one item to fix.
of failed cars had three or more items to fix.
of all first tests had a defect the tester marked dangerous (unsafe to drive away).
Every figure here is a first-attempt MOT rate from DVSA open data for this model line, for cars of this model year tested in 2025. Each mileage band holds a fifth of the tests. MOTs do not test engine or gearbox internals, so this is a pre-purchase checklist, not a full reliability score.
FAQs
Short answers about how to read this model-year guide.
About this data
How this page is built and what it can (and can't) say.
These figures come from UK MOT open data for this model year. We surface common failure patterns against similar cars, not a full reliability score, and not a pass/fail verdict on any individual vehicle.
What we include
UK Class 4 cars only. Normal MOT tests (not retests); first test per vehicle per calendar year; results pass, PRS, or fail.
Same-day repairs
PRS means the car failed items that were fixed at the test station and then passed the same day. We count PRS as a first-attempt fail in headline rates so same-day repairs do not hide problems.
How we compare
We compare this model year with other Class 4 cars of similar age and mileage in the same test year. This model family is left out of the peer group so the car is not measured against itself.
What this does not cover
- MOTs do not cover engine internals, gearboxes, or many electronics; this is not a full reliability score.
- Common faults come from MOT defect stats, not manufacturer TSBs or recalls.
- Age and mileage matching reduces, but does not remove, differences in how cars were used and maintained.
- If the data for a car is too thin to say anything useful, we say so rather than guess.
Contains public sector information licensed under the Open Government Licence v3.0.
Check any vehicle’s MOT history
Full MOT history, mileage records, and reliability insights for any UK vehicle.
Run a free check