2013 London Taxis INT TX4 2.5L Diesel · LL13 XEN

The defining mechanical story of this 2013 London Taxis International TX4 is one of remarkably clean roadworthiness despite exceptionally heavy commercial use, with the 2025-06-05 test passing without a single advisory or defect recorded and the entire recent history showing four consecutive passes. The earlier 2024-06-21 failure is notable only because the corresponding pass was issued on the very same day, strongly suggesting a presentation or retest scenario rather than a genuine mechanical defect, and crucially no components or failure items were formally logged against that test. Across five recorded examinations spanning roughly twelve months, no advisories have been raised, indicating either prompt rectification of minor wear items before each test or genuinely sound condition of the inspected components at the time of examination. For a vehicle of this type and age, a clean advisory sheet is unusual and reflects either diligent pre-test preparation or a particularly well-maintained example. With 272,643 miles accumulated over approximately thirteen years of service, this TX4 has averaged around 20,973 miles per year, a figure consistent with intensive taxi or private hire operation rather than private domestic use. There are no extended gaps in the MOT testing history that would suggest the vehicle was laid up for significant periods, meaning the accumulated wear on mechanical components is genuinely proportional to the mileage shown. This level of annual usage places considerably greater demand on consumable items such as brake discs, pads, suspension linkages, bushes, coil springs, and drivetrain mounts than a typical family car of the same age would experience. The absence of advisories at the most recent test is therefore encouraging, but it should be read alongside the understanding that high-mileage components on a taxi-platform vehicle can deteriorate rapidly between examinations, particularly under load carrying and stop-start urban driving conditions. Prospective buyers should place particular emphasis on the suspension and steering assemblies during any physical inspection, as these are the components most likely to generate advisories on a high-mileage TX4 but which may have been renewed just prior to the test. Pay close attention to the front suspension wishbones, anti-roll bar drop links, and lower ball joints, listening for clonking or knocking noises when traversing speed bumps or uneven surfaces. The rear leaf spring bushes and shackles are also known wear points on this platform, and any vertical bouncing or instability over undulations could indicate fatigued springs or perished mountings. Given the mileage, the power steering rack and track rod ends warrant close examination too, with attention paid to any wandering at speed, uneven tyre wear across the front axle, or whining from the pump under load. Brake system condition deserves equal scrutiny, as taxi service involves hundreds of stops per shift and the discs may have been skimmed or replaced shortly before the last MOT. On a test drive, feel for any judder through the steering wheel or brake pedal under firm application, which would indicate disc runout or uneven pad transfer, and check for the vehicle pulling to one side which could suggest a binding caliper or a seized slider. With no recorded advisories to guide inspection, the buyer is reliant on a thorough physical examination and ideally a pre-purchase inspection by a technician familiar with TX4-specific weak points, including the clutch slave cylinder, gearbox mount, and any evidence of fluid leaks from the engine or transmission. Finally, confirm the service history documentation substantiates the mileage shown and corroborates that major items such as timing chains, clutch assemblies, and suspension components have been addressed at appropriate intervals for a vehicle operating at this intensity.