2010 London Taxis Int Tx4 — MOT failures & pass rate
7,730 MOT tests on the 2010 London Taxis Int Tx4 are in this dataset, and 76.4% of them passed. All cars of a similar age fail at 23.8%, so the 2010 Tx4 sits squarely on the average. Failures cluster in suspension, lighting & signalling and brakes.
What the MOT record shows
No single area dominates — suspension (14.6%) and lighting & signalling (13.6%) are close, so failures are spread across several systems rather than one weak point.
At component level the recurring items are pins and bushes, ball joint and track rod end — pins and bushes alone was recorded 728 times.
Mileage is the strongest signal on the record: 30.2% of 0-30k cars fail, rising to 23.6% once past 150k.
Advisories point at the next bill rather than this one: suspension was flagged on 18.1% of tests without failing them.
The trend is worsening — 20.9% of tests failed in 2021 against 25.1% in 2025, the usual pattern as a fleet ages.
How it compares
Top failure categories
| # | Category | % of tests affected | Tests |
|---|---|---|---|
| 1 | Suspension | 14.6% | 1,126 |
| 2 | Lighting & signalling | 13.6% | 1,048 |
| 3 | Brakes | 11.4% | 879 |
| 4 | Steering | 6.9% | 533 |
| 5 | Body, structure & corrosion | 5.2% | 403 |
| 6 | Emissions & environmental | 5.0% | 389 |
Most common specific failures
The exact components most often recorded as failures — more specific than the categories above.
| # | Failure item | Times recorded |
|---|---|---|
| 1 | Pins and bushes | 728 |
| 2 | Ball joint | 548 |
| 3 | Track rod end | 482 |
| 4 | Rbt (sp) | 425 |
| 5 | Headlamp aim | 381 |
| 6 | Prescribed areas | 334 |
Top advisory categories
Advisories aren't failures, but they flag work likely needed soon — useful when budgeting.
| # | Category | % of tests with advisory | Tests |
|---|---|---|---|
| 1 | Suspension | 18.1% | 1,401 |
| 2 | Brakes | 15.6% | 1,206 |
| 3 | Emissions & environmental | 14.4% | 1,112 |
| 4 | Tyres | 10.5% | 810 |
| 5 | Steering | 8.9% | 685 |
| 6 | Lighting & signalling | 7.8% | 601 |
Failure rate by mileage
Higher-mileage cars tend to fail more — often the most useful guide to real condition.
| Mileage band | Tests | Fail rate |
|---|---|---|
| 0-30k | 43 | 30.2% |
| 60-90k | 54 | 14.8% |
| 90-120k | 86 | 16.3% |
| 120-150k | 162 | 25.3% |
| 150k+ | 7,247 | 23.6% |
Failure rate by age
By fuel type
| Fuel | Tests | Fail rate |
|---|---|---|
| Diesel | 7,425 | 23.3% |
| Petrol | 221 | 26.7% |
| Gas/LPG | 84 | 39.3% |
Trend over time
| Dataset year | Tests | Fail rate |
|---|---|---|
| 2021 | 2,184 | 20.9% |
| 2022 | 2,353 | 21.8% |
| 2023 | 1,485 | 26.5% |
| 2024 | 990 | 28.3% |
| 2025 | 718 | 25.1% |
What to check before buying a 2010 Tx4
On a 2010 Tx4, suspension is what the MOT record says goes wrong most — it appeared in 14.6% of tests. Check these areas before you commit.
- Suspension (14.6% of tests): Worn drop links, bushes, springs or shocks — listen for knocks over bumps and check for uneven tyre wear. Typical repair: £150–£450 per corner.
- Lighting & signalling (13.6% of tests): Often a cheap bulb, but persistent issues can mean wiring or corrosion in the units. Typical repair: £10–£150.
- Brakes (11.4% of tests): Pads/discs are routine wear; binding, imbalance or corroded pipes are more serious — test for pulling under braking. Typical repair: £100–£350 per axle.
Repair costs are rough UK ballpark ranges to set expectations, not quotes — actual prices vary widely by car, parts and garage.
Frequently asked questions
How many 2010 London Taxis Int Tx4s pass their MOT?
76.4% of the 7,730 2010 London Taxis Int Tx4 MOT tests in this dataset passed — a 23.6% fail rate.
What is the most common MOT failure on a 2010 London Taxis Int Tx4?
Suspension, recorded in 14.6% of tests, followed by lighting & signalling (13.6%).
Does the 2010 Tx4 get worse with mileage?
Its MOT fail rate rises from 30.2% in the 0-30k band to 23.6% in the 150k+ band.
Methodology & source. Based on 7,730 MOT tests. Dataset: DVSA MOT testing data (2021,2022,2023,2024,2025). Data last updated 2026-07-27. Figures reflect MOT-testable defects only — read the methodology for how these are calculated and what they don't measure.