2006 Land Rover Range Rover Sport 4.2L Petrol · AF55 BBX

A 2006 Range Rover Sport with only two recorded MOT passes and one unrecorded failure against its 20-year history presents a deeply fragmented roadworthiness picture, and the absence of any advisory data from the 2025-01-07 failure is itself a concern. The DVSA record shows the vehicle passed cleanly in January 2022 and again in December 2022, but the subsequent failure nearly two years later carries no defect information whatsoever, which typically means either the tester failed to record the reasons or the test was abandoned before completion. Given the gaps between tests, there is a clear pattern of sporadic use interspersed with long periods off the road, making the mechanical narrative one of an under-exercised flagship SUV rather than a regularly maintained daily driver. With 79,760 miles accumulated over two decades, the annual rate of roughly 3,988 miles is markedly low for a vehicle of this size and complexity, and the MOT interval pattern reinforces this. Three tests across 20 years implies extended periods of either SORN registration, exemption, or non-use, which is particularly relevant to a Range Rover Sport of this vintage because prolonged standing allows the sophisticated air suspension struts to dry out and develop leaks, the complex Terrain Response and drivetrain seals to lose their lubrication, brake calipers to bind through corrosion on the discs, and the timing chain guides and plastic intake manifold components to degrade without the thermal cycling that regular use promotes. The mileage itself is not high enough to indicate worn-out major mechanicals, but the combination of low miles and long lay-ups is the more pressing concern for any buyer evaluating corrosion, rubber component integrity, and electronic system reliability. On a physical inspection and test drive, particular attention must be paid to the air suspension system, which is the single most costly failure point on this generation of Range Rover Sport. Listen for the compressor running excessively on startup, watch for the vehicle settling unevenly overnight, and check whether it raises and lowers smoothly through all Terrain Response settings, because perished strut diaphragms and a tired compressor are very common on low-mileage examples that have stood for long periods. Brake feel should be tested from cold on the first stop, as seized calipers from inactivity will produce a dragging sensation, uneven pulling, or a judder through the pedal, and the discs themselves should be examined for heavy surface corrosion that has pitted beyond safe thickness. Under the vehicle, inspect the front subframe mounting points, the suspension arm bushes, and the brake pipes for corrosion, as these are routine advisories on older Land Rover products and the lack of any advisory history here means they have either never been inspected closely or have never been recorded. The drivetrain and engine bay warrant equal scrutiny, with specific attention to the 2.7-litre or 3.6-litre diesel timing chain area for any rattling on cold start, the EGR valve and intake manifold for the characteristic carbon build-up that triggers rough running and warning lights, and the underside of the engine and gearbox for oil misting around the sump, cam seals, and transfer box. On the road, test the transfer box and centre differential by selecting low range on a loose surface to confirm smooth engagement, listen for any clonks from the front propshaft under light throttle, and monitor the dashboard for any transmission fault messages or HDC failures, as the electronic systems on this platform are notoriously sensitive to low voltage conditions caused by a weakened battery after long periods of standing. Finally, a full diagnostic read of all ECU modules and a thorough inspection of the underbody with the vehicle on a ramp are strongly advised, because the lack of advisory detail in the available record leaves significant room for hidden issues that a paper MOT history alone cannot reveal.