London Taxis Int TX4 MOT pass rate and common problems
79.3% of 18,218 London Taxis Int TX4 MOT tests pass.
The TX4's pass rate of 79.3% is in line with the average across all London Taxis Int models, at 78.4%.
The London Taxis Int TX4's pass rate of 79.3% is in line with the national average for cars, at 79.2%.
Own this London Taxis Int TX4?
This is the average across every London Taxis Int TX4 in the dataset. Look up your own registration for its actual MOT history, and a free place to keep its maintenance records.
Have service invoices? Upload and keep them with your car’s history →
How to check and keep your London Taxis Int’s service history →
Pass rate by vehicle age
Pass rate drops sharply with age: the London Taxis Int TX4 tested at 6–10 years pass 84.6% of the time, compared with just 63.3% at 15+ years.
| Vehicle age | Pass rate | Tests | Average mileage |
|---|---|---|---|
| 0–3 years | no tests recorded | 0 | no reading |
| 3–6 years | no tests recorded | 0 | no reading |
| 6–10 years | 84.6% | 8,972 | 176,608 miles |
| 10–15 years | 76.1% | 7,804 | 246,105 miles |
| 15+ years | 63.3% | 1,442 | 297,191 miles |
Common MOT failure reasons for the London Taxis Int TX4
The most common reason the London Taxis Int TX4 fails its MOT is suspension — present in 64.2% of failed tests, most often logged as "Pin or bush excessively worn".
| Category | Share of failed tests | Example |
|---|---|---|
| Suspension | 64.2% | Pin or bush excessively worn |
| Lamps, reflectors and electrical equipment | 54.7% | Not working |
| Brakes | 32.4% | Efficiency below requirements |
| Body, chassis, structure | 13.7% | Or chassis has excessive corrosion, seriously affecting its strength within 30cm of a cab mounting |
| Noise, emissions and leaks | 13.4% | Inoperative or indicates a malfunction |
| Steering | 12.2% | Ball joint has excessive play |
| Visibility | 10.9% | Provides insufficient washer liquid |
| Tyres | 8.6% | Tread depth below requirements of 1.6mm |
| Seat belts and supplementary restraint systems | 4.4% | Prescribed area strength or continuity significantly reduced |
| Road Wheels | 0.3% | Fixing missing |
Buying a used London Taxis Int TX4: what to check
These checks follow the London Taxis Int TX4’s own MOT record: the areas it fails on most often, and how that changes as the car gets older. None of them replaces a mechanic’s inspection, but they tell you where to look first.
The biggest drop in pass rate for the London Taxis Int TX4 comes between 10–15 years and 15+ years old, from 76.1% to 63.3%. If you are looking at one in or just past that range, read its MOT history closely.
By mileage, the steepest fall is from 90,000–120,000 mi to 120,000+ mi: 88.3% down to 78.9%. Mileage matters as well as age, so compare the car’s recorded mileages with its year.
1. Suspension
Recorded in 64.2% of failed London Taxis Int TX4 MOTs.
Listen for knocks over bumps and speed humps, and check the car sits level. Push down on each corner: it should settle rather than keep bouncing.
2. Lights and electrics
Recorded in 54.7% of failed London Taxis Int TX4 MOTs. 35.3% of tests at 15+ years failed on lights and electrics, against 17.0% at 6–10 years.
Walk round with the lights on: headlights (dipped and main), indicators, brake lights, fog light and number-plate lamp. Check the dashboard warning lights come on with the ignition, then go out once the engine starts.
3. Brakes
Recorded in 32.4% of failed London Taxis Int TX4 MOTs. 26.8% of tests at 15+ years failed on brakes, against 7.0% at 6–10 years.
On the test drive, the car should stop straight without pulling or juddering, and the handbrake should hold it on a slope. Look through the wheels for scored or heavily lipped discs.
4. Bodywork and corrosion
Recorded in 13.7% of failed London Taxis Int TX4 MOTs. 12.3% of tests at 15+ years failed on bodywork and corrosion, against 1.7% at 6–10 years.
Look underneath and along the sills for corrosion, especially near suspension and seat-belt mountings. Uneven panel gaps or mismatched paint can indicate accident repair.
5. Exhaust, emissions and leaks
Recorded in 13.4% of failed London Taxis Int TX4 MOTs.
Look under the car for fresh oil or coolant, and listen for blows or rattles from the exhaust. Watch for smoke from the tailpipe when the engine starts and when you accelerate.
Check the car’s own MOT history. Averages describe the model, not the car in front of you. Look up its registration for past failures, advisories that were never fixed, and gaps or dips in the recorded mileage.
Ask for the service history. Invoices show what was done and when; a stamp alone shows less. See how to check London Taxis Int service history and what a service history check can tell you.
Frequently asked questions
- What is the MOT pass rate for the London Taxis Int TX4?
- 79.3% of London Taxis Int TX4 MOT tests pass, based on 18,218 tests in the DVSA anonymised MOT tests and results dataset.
- What are the most common MOT failures for the London Taxis Int TX4?
- The most common reason the London Taxis Int TX4 fails its MOT is suspension — present in 64.2% of failed tests, most often logged as "Pin or bush excessively worn".
- What are the common problems with the London Taxis Int TX4?
- Going by its MOT results, the most common problem areas on the London Taxis Int TX4 are suspension; lights and electrics; brakes.
- What should I check when buying a used London Taxis Int TX4?
- Start with the areas it most often fails its MOT on: suspension; lights and electrics; brakes; bodywork and corrosion; exhaust, emissions and leaks. Then check the specific car's MOT history by registration for failures, advisories and mileage, and ask the seller for service invoices.
- Does this show the London Taxis Int TX4's service history?
- No — this is MOT test data, which covers roadworthiness, not servicing. A service history is a separate record of maintenance work, which a specific car only has if its owner has kept it. See the London Taxis Int service history guide for how to check and keep one.