2007 London Taxis INT TX4 2.5L Diesel · LR07 LGL

A clean MOT history on paper defines the mechanical story of this 2007 London Taxis TX4, with every recorded test from 2021 through to the most recent pass on 18 April 2023 showing no advisories, no failures of consequence, and no components flagged for attention. The only blemish is a single failed attempt on 12 September 2022 which appears to have been a retest situation, given that a pass followed just two days later on 14 September 2022, suggesting a minor rectification rather than a serious underlying defect. Across the five recorded events there is no pattern of recurring brake, suspension, steering, corrosion, or exhaust issues, which is particularly reassuring for a London taxi of this vintage, given that such vehicles typically endure punishing urban duty cycles including constant stop-start traffic, heavy payload loading, and prolonged idling. The absence of any recorded advisories means there is no documented insight into which specific wear items are beginning to approach their service limits, but equally there is no evidence of chronic or escalating mechanical deterioration within the recorded test window. With a build year of 2007 and MOT tests documented from 2021 onwards, the vehicle is approaching two decades of age, yet recorded mileage is unavailable, preventing any meaningful cross-reference between annual accumulation and the 19-year service life. The gap in testing history prior to 2021 is notable, raising the possibility either of extended periods off the road with statutory exemption, or of testing activity that has simply not been captured in this dataset. For a London taxi application, an extremely high annual mileage figure would be entirely normal, often exceeding 25,000 miles per year in active service, and components such as the clutch, gearbox synchros, rear axle assemblies, and engine ancillaries would typically show far more wear than on a privately owned saloon of equivalent age. The lack of mileage data therefore places the burden firmly on the prospective buyer to verify accumulated wear through physical inspection, service records, and a thorough pre-purchase mechanical examination rather than relying on the MOT record alone. Targeted inspection should concentrate on the items that most commonly plague the TX4 platform and that the MOT record, due to its sparsity, cannot illuminate. On a road test, listen carefully for clonking or knocking from the front suspension over uneven surfaces, which would indicate worn lower wishbone bushes, drop links, or anti-roll bar mountings, all known weak points given the heavy unladen weight of the vehicle. Check for steering wander, vagueness on cambers, or a pronounced pull under braking, as these can point to worn track rod ends, top mounts, or warped front discs, the latter being particularly common on taxis that have covered substantial mileage in stop-start traffic. Brake pedal feel should be assessed for excessive travel or sponginess, which on these vehicles can indicate fatigued caliper slide pins, seized caliper pistons, or, on later examples, issues with the servo or master cylinder. Inspect the underside thoroughly for any signs of corrosion on subframe mounting points, floor pans, and suspension turrets, as the TX4's body structure is known to be vulnerable to rust in the wheel arches, sills, and around the rear suspension mounting areas, none of which would necessarily have been recorded as advisories unless they were already causing an MOT failure at the time of test. Further checks should include a close visual examination of the engine bay and undertray area for signs of oil misting or weeping from the 2.5-litre naturally aspirated diesel, particularly around the rocker cover gasket, oil filter housing, and rear main seal areas, as well as inspecting the condition of the cooling system hoses and radiator for any signs of leakage or corrosion that could lead to future failures. The exhaust system should be checked for blowing joints, corroded mounting rubbers, and any signs of repair rather than full replacement, as emissions failures on diesel taxis are a known concern. Inside the cabin, ensure the steering operates smoothly without excessive play or roughness that could indicate worn power steering pump internals or rack wear. Finally, request evidence of recent replacement of the timing belt and water pump, as on a 19-year-old vehicle these items represent critical maintenance that, if overlooked, can result in catastrophic engine failure, and given the absence of detailed mileage data this service history becomes one of the most important factors in establishing the true mechanical condition of the vehicle.