Diesel London Taxis International Tx4: MOT pass rate
76.1% of diesel London Taxis International Tx4s pass the MOT first time, measured across 10,876 DVSA tests on that fuel type alone. Average mileage at test was 218,807.
Diesel against the other London Taxis International Tx4 versions
| Fuel | Pass rate | Tests |
|---|---|---|
| Diesel | 76.1% | 10,876 |
| LPG | 62.7% | 220 |
| All London Taxis International Tx4 | 75.7% | 11,190 |
Why the fuel type changes the number
Diesels carry DPFs, EGR valves and stricter smoke limits, so emissions and exhaust faults account for failures petrol cars never see.
On the London Taxis International Tx4 specifically, diesel is the strongest at 76.1%, and this diesel version sits 0.4 points above the 75.7% model average.
What it means if you are buying one
There is little to choose between fuel types on this model, so decide on running costs and mileage rather than MOT record. Check the exact car, decode the VIN and check the mileage before you bid.
Mileage is part of the answer
The average diesel London Taxis International Tx4 had covered 218,807 miles at test, against 303,284 for the lpg. That is very high mileage. Clutches, dual-mass flywheels and head gaskets have usually been through at least one repair by this point, so ask for evidence rather than assume the car is original everywhere.
Fuel type and mileage are tangled together: diesels are usually bought by higher-mileage drivers, so some of any gap between fuels is the miles rather than the engine. The per-year figures on the London Taxis International Tx4 page separate age from fuel if you want to isolate one.