2008 Jaguar XF 2.7L Diesel · FP08 AVO

A concerning dual-failure pattern sits at the heart of this Jaguar XF's roadworthiness record. On 2024-11-25 the vehicle was failed at test, just four months after a clean pass on 2023-07-12, and the 2023-07-07 result itself was also a fail before the subsequent pass five days later. With no defects or advisories recorded against any of these four tests within the last four years, the picture is one of borderline pass-or-fail outcomes rather than a documented mechanical decline. The absence of advisory notes means there is no specific component trend to follow, but for an eighteen-year-old premium saloon with this mileage, the proximity of a pass and a fail within days on one occasion suggests the test outcomes hinge on marginal measurements, whether emissions-related, brake efficiency, or suspension component condition, which can vary sharply depending on preparation, ambient conditions, or workshop interpretation. Recorded mileage of 167,372 miles across roughly eighteen years equates to an annual accumulation of around 9,300 miles, which is broadly typical for a vehicle of this age and class. There are no significant gaps in the MOT record between 2022 and 2024, indicating continuous use on the road rather than long lay-ups that might have accelerated degradation of rubber components, brake hydraulic seals, or underfloor protection. Given the age and the premium-platform engineering of the XF, this is a mileage level where mechanical sympathy becomes critical: high-pressure common-rail diesel or petrol fuel system components, timing chain guides on the relevant engines, automatic transmission torque converter behaviour, and the complex multi-link front suspension geometry will all have absorbed significant cumulative stress. Tyres, brake discs, pads, and fluid-condition service items will also have been replaced multiple times over, which is the expectation at this odometer reading rather than a concern. Given that the MOT record itself carries no component-level advisories to anchor a defect history, the inspection must rely on the known mechanical character of this generation of XF and the cumulative wear expected from sustained high-mileage use. On a test drive, pay close attention to the front suspension: listen for knocking or clonking over uneven surfaces, which would indicate worn lower wishbone bushes, anti-roll bar links, or front subframe mount deterioration, all of which can pass an MOT by narrow margins only to fail shortly afterwards. Steering feel should be examined for vagueness, juddering through the wheel, or a pulling tendency under braking, the latter often pointing to binding caliper slides or uneven disc wear, particularly on heavier premium platforms where disc temperatures rise quickly under load. A cold-start observation is worthwhile to listen for any timing chain rattle or auxiliary belt noise, as the AJ-V6 and AJ-V8 diesel variants fitted to this era of XF are known for chain guide wear at this mileage bracket. The vehicle-specific test drive should also cover transmission behaviour, given that the bulk of XF sales in this period were fitted with the six-speed automatic, and any hesitation, harsh shift, or torque converter shudder under gentle throttle progression would warrant a fluid and filter service history check. Brake pedal feel should be firm without sponginess, which on an older vehicle can indicate degraded hydraulic fluid or compromised flexible brake lines under the wheel arches and along the underbody, areas highly susceptible to corrosion on cars that have seen winter salt exposure. With no advisories on record, a pre-purchase inspection by a specialist familiar with Jaguar products is strongly advised, focusing on the underside for any emerging surface corrosion, suspension arm corrosion around mounting points, and signs of fluid residue around the engine and transmission sumps. A diagnostic read of any stored fault codes, particularly for the electronic stability control, adaptive damping where fitted, and transmission control module, will also provide a clearer picture of the vehicle's true mechanical state than the borderline MOT history alone suggests.