London Taxis Int TX4 MOT pass rate: 77.6% (9,640 tests, 2025)

The London Taxis Int TX4 passed 77.6% of its 9,640 MOT tests in 2025 — right on the UK average of 77.5%. The median tested example was 11 years old with 218,762 miles on the clock.

77.6%Pass rate (2025)

9,640MOT tests analysed

218,762 miMedian mileage at test

11 yrsMedian age at test

How the TX4 compares

London Taxis Int TX4

77.6%

UK average (all Class 4 vehicles)

77.5% across 33.1 million tests

London Taxis Int average (all models)

77.6%

What fails most on the London Taxis Int TX4

Across failed and rectified tests in 2025, these vehicle systems produced the most defects on the TX4:

#	System	Defects recorded	Share
1	Suspension	3,122	37.5%
2	Lamps, reflectors and electrical equipment	1,706	20.5%
3	Brakes	1,372	16.5%
4	Body, chassis, structure	592	7.1%
5	Noise, emissions and leaks	513	6.2%
6	Steering	448	5.4%

Pre-MOT checklist for TX4 owners

Based on the failure profile above, ten minutes with a torch before your test removes the most likely fail items:

Bounce each corner and listen for clonks over speed bumps — suspension is this model’s (and the UK’s) top failure system
Walk round with all lights on: one blown bulb is the most avoidable fail there is
Feel for a spongy pedal or pulling to one side; check pad wear through the wheel spokes if visible
Look underneath for corrosion around sills and subframes, especially on older cars
A blowing exhaust or visible smoke will fail; warm the engine fully before the test

Check the engine before the tester does

A stored fault code with the engine light on is an automatic Major defect. Scan and clear resolved faults before booking.

Topdon OBD2 scannersTopdon diagnostic scanners with full-system readouts
XTOOL diagnostic toolsXTOOL code readers for petrol and diesel cars
Autel UK testersAutel professional-grade diagnostic testers

TX4 pass rate by registration year

Registration year	Tests	Pass rate	Vs same-age	Median mileage
2009	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

Check a specific TX4 before you buy

Pass rates describe the model; they can’t tell you about the one car you’re looking at. Run its plate through our free MOT history check to see its personal record of failures, advisories and mileage readings.

FAQs

What is the MOT pass rate for a London Taxis Int TX4?

In 2025, 77.6% of 9,640 first MOT tests on the London Taxis Int TX4 were passes (UK average: 77.5%). Data: DVSA anonymised MOT results.

What does the TX4 fail its MOT on most?

The biggest defect group is suspension (37.5% of its recorded defects), followed by lamps, reflectors and electrical equipment.

Is the London Taxis Int TX4 reliable?

MOT pass rate is one lens on durability: at 77.6% it performs above the national average at a median age of 11 years and 218,762 miles. Always check the individual car's history too.

Source: DVSA Anonymised MOT tests and results, 2025 extract (Class 4 initial tests only; retests excluded). Contains public sector information licensed under the Open Government Licence v3.0. Figures rounded to one decimal place.