2010 London Taxis INT TX4 2.5L Diesel · LR10 VKA

The most recent DVSA MOT test on 13 December 2022 resulted in a pass, but it was accompanied by several advisories and a minor defect that warrant close attention from a prospective buyer. The test recorded an oil leak not deemed excessive, worn upper suspension arm pins or bushes on the nearside and offside front, slight play in the offside front upper suspension ball joint, and a brake pedal that was not releasing correctly. The latter is a minor defect but is functionally significant, as a binding or slow-returning brake pedal can indicate a sticking brake caliper, master cylinder issue, or fatigued brake servo return spring. These items collectively suggest the front suspension and braking components are nearing the end of their service life, and a buyer should expect remedial work in the near term. Looking at the broader MOT history, the maintenance trend appears to be worsening rather than stable. Earlier tests in November 2021 and November 2020 passed with no recorded issues, but subsequent tests in 2021 and 2022 included failures relating to suspension ball joint and wishbone bush wear, inoperative front lighting, and an engine management malfunction indicator lamp. The recurrence of suspension-related advisories across both the 2021 and 2022 tests, escalating from advisory status in some instances to major failure in others, indicates progressive wear in the front suspension geometry. This pattern is typical of a high-mileage vehicle where rubber bushings and ball joints have reached the limits of their functional life. With 419,507 miles recorded over approximately 16 years, this London Taxis TX4 averages around 26,219 miles per year, which is exceptionally high and consistent with intensive commercial service use. Such accumulation places considerable demand on the drivetrain, clutch, braking system, cooling system, and suspension components, all of which will have experienced substantially more wear than a typical private vehicle of the same age. The London taxi operating environment, characterised by stop-start urban traffic, frequent low-speed manoeuvring, and prolonged idling, accelerates degradation of components such as the clutch, dual mass flywheel if fitted, cooling fan, alternator, and rear axle components. The high recorded figure also raises the importance of verifying that the odometer reading is genuine and supported by a continuous service history. A prospective buyer should conduct a thorough physical inspection and a careful test drive before committing to purchase. On inspection, the engine oil should be checked for level and condition, given the recurring oil leak advisory, and the underside examined for fresh drips or staining on the sump, timing cover, or valve cover gasket areas. The front suspension should be inspected with the wheels lifted to check for play in the upper wishbone bushes, track rod ends, and drop links, and the brake pedal should be depressed firmly to confirm it returns crisply without sticking. On a test drive, listen for clonking or knocking noises from the front end over bumps, which would confirm worn suspension bushes or ball joints, and pay attention to any pulling to one side under braking, which could indicate uneven pad wear or a seizing caliper. Given the vehicle's age and high mileage, the buyer should also verify the date codes on the tyres to ensure they are not perished from age, check the condition of the 12V battery and charging system, and confirm that brake fluid, coolant, and transmission fluid have been changed within manufacturer-recommended intervals, as time-based fluid degradation can cause internal corrosion and component failure regardless of mileage. A pre-purchase inspection by a specialist familiar with TX4 models would be highly advisable.