2009 Jaguar XF 3.0L Diesel · OV09 HKX

The 2009 Jaguar XF presents a mixed roadworthiness picture marked by intermittent technical difficulties rather than sustained failure. The most recent MOT test on 2025-12-05 returned a Pass, yet the preceding test on 2025-11-26 had resulted in a Failure due to dangerously thin brake pads on both front and rear axles and a non-functional offside rear fog lamp, compounded by corroded subframe mounting areas and deteriorating anti-roll bar ball joint seals. This pattern of resolved failures followed by another Pass indicates the vehicle has stabilised after addressing earlier concerns, though the presence of multiple advisories—including subframe corrosion and brake pad thinning—means the underlying issues were not fully cleared at the last test. The overall trajectory suggests a car that was once under threat of becoming unsafe but is currently roadworthy pending further verification of the corrected work. At 124,003 miles on its 17-year life, the odometer reading translates to roughly 7,300 miles per annum, which aligns with typical usage patterns for a vehicle of this age and reflects moderate driving over the past decade. The gap between the November 2025 failed test and the December 2025 successful re-test implies the problematic components were repaired, though the absence of a significant increase in mileage since then suggests the vehicle has not accumulated additional stress. Notably, the 2020 MOT recorded a slightly distorted offside rear wheel, which may indicate prior suspension or alignment work that has either been completed or is unrelated to current condition, but it does not constitute a persistent flaw given the lack of subsequent brake or chassis failures in later records. The nearest critical mechanical concerns centre on three areas: the braking system, the rear subframe, and the anti-roll bar assembly. On a test drive, pay close attention to whether the vehicle exhibits any knocking or pulsating over bumps when braking hard, which would signal continued wear on the front and rear brake discs or pads despite the reported thickness measurements. Inspect the rear subframe mounting points both visually and by probing for rust penetration or loose bolts during the walk-around, as corrosion here can compromise structural integrity and affect suspension geometry. Additionally, verify that the offside rear fog lamp operates correctly and that the rear anti-roll bars move freely without excessive play in their ball joint seals, particularly when turning the wheel slowly to feel for any looseness or grinding sensation. Before committing to this purchase, conduct a hands-on inspection of the flagged components: examine the brake caliper faces and pad contact patches for uneven wear or scoring, perform a thorough visual survey of the rear subframe for flaking rust or bent mounting holes, and test the fog lamp circuit while the vehicle is running to confirm electrical function. Given the history of brake-related failures and subframe corrosion, consider having a professional mechanic re-check the rear brake system and subframe integrity at the point of sale, especially since the last MOT did not flag any new issues but the previous failure result remains relevant until independent verification is obtained. The mileage level is appropriate for the vehicle's age and does not suggest extreme abuse, yet the combination of brake thinning and subframe deterioration warrants caution and thorough physical examination of the specific parts mentioned above.