Most Reliable London Taxis Int Models: Real MOT Data Analysis
We analysed 15,484 real UK MOT tests to reveal which London Taxis Int models pass most often, which years to buy, and which to avoid entirely.
15,484 MOT tests analysed
Real DVSA data covering every London Taxis Int model from 2000-2023
Key Findings
Most Reliable Model
London Taxis Int TX4
63.4% pass rate
Best Single Year
TX4 2007 Diesel
59.0% pass rate
London Taxis Int vs National Average
63.0% vs 71.5%
-8.5% below average
Proven Durability Champion
TX4 2009
+3.6% at 13+ years
London Taxis Int has built its reputation on reliability, but does the data back it up? We analysed 15,484 real MOT tests from the DVSA database to find out exactly which London Taxis Int models live up to the hype and which ones fall short.
This isn't survey data or owner opinions. These are actual pass/fail results from UK garages, covering every London Taxis Int model sold in the UK from 2000 to 2023.
How London Taxis Int Compares to Rivals
London Taxis Int ranks #62 out of 75 manufacturers with a 63.0% average MOT pass rate. That's below the national average of 71.5%:
| Manufacturer | Pass Rate | Rank | Tests Analysed |
|---|---|---|---|
| Toyota | 74.0% | #31 | 1,606,300 |
| Volkswagen | 72.2% | #43 | 2,967,545 |
| Nissan | 68.7% | #50 | 1,612,552 |
| Ford | 68.5% | #51 | 4,432,652 |
| Vauxhall | 65.4% | #59 | 3,038,498 |
| London Taxis Int | 63.0% | #62 | 15,484 |
The verdict: Toyota maintains a lead among competitors, while London Taxis Int sits at #62. However, newer London Taxis Int models significantly outperform this average.
Best London Taxis Int Models by MOT Pass Rate
Looking at overall reliability across all years, here's how London Taxis Int's core models rank against the 71.5% national average:
| Model | Pass Rate | vs National (71.5%) | Tests | Years |
|---|---|---|---|---|
| TX4 | 63.4% | -8.1% | 13,601 | 2007-2017 |
Proven Durability Champions: Which London Taxis Int Models Age Best?
These London Taxis Int models have proven their durability with 11+ years of real-world MOT data. They're compared against the national average for cars of the same age:
High-confidence data: Only vehicles with 11+ years of MOT history and 500+ tests are included in this ranking.
| Model | Year | Fuel | vs Same-Age Average | Tested At | Pass Rate |
|---|---|---|---|---|---|
| TX4 | 2009 | Diesel | +3.6% | 13+ years | 60.9% |
| TX4 | 2007 | Diesel | +1.8% | 13+ years | 59.0% |
How to read this: A score of "+15%" means the model passes MOTs 15 percentage points more often than the average car of the same age. These are proven results from vehicles that have genuinely aged well.
London Taxis Int TX4: Year-by-Year Breakdown
The TX4 has 13,601 tests in our database with an overall 63.4% pass rate:
| Year | Fuel | Pass Rate | vs Same-Year Avg | Tests |
|---|---|---|---|---|
| 2017 | Diesel | 67.6% | -14.1% | 1,064 |
| 2016 | Diesel | 70.0% | -8.7% | 1,646 |
| 2015 | Diesel | 66.3% | -9.2% | 2,092 |
| 2014 | Diesel | 61.6% | -10.1% | 2,260 |
| 2013 | Diesel | 64.3% | -4.0% | 1,177 |
| 2012 | Diesel | 62.6% | -3.1% | 1,237 |
| 2011 | Diesel | 60.8% | -2.2% | 1,223 |
| 2010 | Diesel | 60.1% | -0.4% | 1,052 |
| 2009 | Diesel | 60.9% | +1.9% | 716 |
| 2008 | Diesel | 52.6% | -4.8% | 521 |
| 2007 | Diesel | 59.0% | +2.1% | 613 |
| ... | ||||
| 2008 | Diesel | 52.6% | -4.8% | 521 |
| 2007 | Diesel | 59.0% | +2.1% | 613 |
TX4 verdict: Avoid the 2008 diesel (52.6%).
Avoid early TX4 models
The 2008 diesel TX4 has a 52.6% pass rate, failing MOTs more often than passing.
London Taxis Int Hybrids vs Petrol vs Diesel
London Taxis Int's fuel type comparison shows clear differences in reliability:
| Fuel Type | Average Pass Rate | vs National | Tests |
|---|---|---|---|
| Diesel | 63.3% | -8.2% | 13,917 |
London Taxis Int Models to Avoid
Not all London Taxis Ints are reliable. These specific model/year combinations have failure rates well above average:
| Model | Year | Fuel | Pass Rate | Tests |
|---|---|---|---|---|
| TX4 | 2017 | Diesel | 68.6% (-13.6% vs same-age) | 582 |
| TX4 | 2014 | Diesel | 61.0% (-13.4% vs same-age) | 2,155 |
| TX4 | 2015 | Diesel | 66.3% (-10.9% vs same-age) | 2,092 |
| TX4 | 2016 | Diesel | 70.0% (-10.2% vs same-age) | 1,646 |
| TX4 | 2008 | Diesel | 52.6% (-7.3% vs same-age) | 521 |
| TX4 | 2013 | Diesel | 64.3% (-6.9% vs same-age) | 1,177 |
| TX4 | 2012 | Diesel | 62.6% (-7.1% vs same-age) | 1,237 |
| TX4 | 2011 | Diesel | 60.8% (-5.7% vs same-age) | 1,223 |
| TX4 | 2010 | Diesel | 60.1% (-4.2% vs same-age) | 1,052 |
| TX4 | 2009 | Diesel | 60.9% | 716 |
Pattern to avoid
Early 2008-2017 diesel TX4s are the models that drag down London Taxis Int's average. These vehicles fail MOTs more often than they pass.
What Goes Wrong on London Taxis Ints?
When London Taxis Ints fail MOTs, these are the most common causes:
| Failure Category | Total Failures |
|---|---|
| 1. Lamps, reflectors and electrical equipment | 2,384 |
| 2. Suspension | 2,274 |
| 3. Brakes | 1,502 |
| 4. Noise, emissions and leaks | 869 |
| 5. Steering | 713 |
| 6. Visibility | 703 |
| 7. Body, chassis, structure | 592 |
Pre-MOT checklist for London Taxis Int owners:
- Check all bulbs (number plate lights are commonly missed)
- Inspect suspension bushes and anti-roll bar links
- Check brake pad thickness and disc condition
- Check exhaust system for leaks and emissions
Frequently Asked Questions
Our Buying Recommendations
Best If Buying Nearly New
2019-2023 models with highest early pass rates
- Limited data for recent models
Note: Long-term durability not yet proven for these newer models
Best If Buying Used (Proven)
11+ years of proven durability data
- Limited proven durability data available
London Taxis Int Models to Avoid (Proven Poor)
Proven below average at 11+ years - not just old, genuinely problematic
- No major proven reliability concerns
About This Data
This analysis uses real MOT test results from the DVSA database, covering 15,484 tests on London Taxis Int vehicles between 2000 and 2023.
Year-Adjusted Scoring (v2.1): In year-by-year breakdowns, each vehicle is compared against the national average for vehicles of the same model year. This removes the natural bias where newer cars pass more often, allowing fair comparisons across eras.
Evidence-Tiered Durability: We separate "proven durability" (vehicles tested at 11+ years old) from "early performers" (3-6 years old). Only vehicles with proven long-term data are used for durability claims. Age-band comparisons use weighted national averages.
Minimum thresholds: 500 tests for proven durability rankings, 1,000 tests for early performer rankings. Pass rates are calculated as first-time passes, excluding retests.
The overall national average MOT pass rate is 71.51% based on 32.3 million tests across all manufacturers. Year-specific averages range from ~59% (2009 vehicles) to ~88% (2020 vehicles).
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