2009 London Taxis Int TX4 MOT pass rate: 64.8% (1,733 tests)
Is the 2009 TX4 getting worse?
Pass rate of 2009-registered cars across recent test years:
| Test year | Pass rate | |
|---|---|---|
| 2023 | 63.6% -3.3 vs same-age |
|
| 2024 | 61.5% -4.7 vs same-age |
|
| 2025 | 71.3% +5.2 vs same-age |
The raw rate normally falls as cars age. The “vs same-age” figure compares this cohort with all UK cars registered in the same year, so normal ageing is not mistaken for a bad model year.
What fails on a 2009 TX4
| # | System | Defects recorded | Share |
|---|---|---|---|
| 1 | Suspension | 577 | 24.9% |
| 2 | Brakes | 439 | 19.0% |
| 3 | Lamps, reflectors and electrical equipment | 439 | 19.0% |
| 4 | Body, chassis, structure | 295 | 12.7% |
| 5 | Steering | 206 | 8.9% |
| 6 | Noise, emissions and leaks | 130 | 5.6% |
All TX4 years compared
| Registration year | Tests | Pass rate | Vs same-age | Median mileage |
|---|---|---|---|---|
| 2009 (this page) | 1,733 | 64.8% | -1.6 pts | 286,046 |
| 2010 | 2,368 | 64.8% | -2.6 pts | 295,007 |
| 2011 | 2,811 | 68.8% | -0.5 pts | 262,229 |
| 2012 | 2,628 | 76.3% | +4.9 pts | 239,120 |
| 2013 | 2,927 | 80.5% | +7.0 pts | 221,726 |
| 2014 | 6,314 | 78.3% | +2.4 pts | 206,120 |
| 2015 | 6,200 | 81.5% | +2.8 pts | 184,124 |
| 2016 | 4,742 | 82.4% | +1.0 pts | 160,499 |
| 2017 | 1,671 | 82.8% | -1.3 pts | 141,423 |
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FAQs
Is a 2009 London Taxis Int TX4 reliable?
2009-registered examples passed 64.8% of their MOT tests (1,733 tests, 2023–2025), -1.6 points versus all UK cars registered in the same year. At roughly 17 years old with a median 286,046 miles, condition now varies car by car — always check the individual MOT history.
What mileage is too high for a 2009 TX4?
The median tested example shows 286,046 miles. Anything far beyond that isn't automatically bad — a motorway-mile car with consistent service records often beats a low-mileage school-run car — but price accordingly and scrutinise the mileage trail for gaps or drops.
Source: DVSA Anonymised MOT tests and results, 2023–2025 extracts (96 million Class 4 initial tests; retests excluded). Only vehicles old enough for a routine first MOT are included. Age-adjusted figures compare the model-year cohort with all vehicles of the same registration year tested in the same calendar year. Contains public sector information licensed under OGL v3.0.