2003 Jaguar XJ 3.0L Petrol · BW03 EFT

The vehicle presents a concerning roadworthiness profile with a worsening trend in structural and hydraulic system degradation. Although it passed its most recent MOT on 22 May 2026 at 113,982 miles, it failed just three days prior due to an ABS fault and persistent corrosion across all four brake hoses. The tester noted slight corrosion to the ferrule on every brake hose alongside general underbody rust, indicating that while the car is currently legal, the underlying metalwork components are reaching a critical stage of decay. At 113,982 miles, this 23-year-old Jaguar has covered a low average of approximately 5,000 miles per year. The data shows very little movement between recent tests, with only 664 miles recorded between November 2024 and May 2026. This low frequency of use often correlates with the mechanical issues observed, as vehicles that sit for long periods are prone to brake binding, perished seals, and the deterioration of suspension components that do not receive the protective benefits of regular operation. A buyer must prioritize a thorough inspection of the front and rear subframes, as the record has consistently flagged corrosion in these areas since at least 2023. While previous tests noted the structural rigidity was not yet weakened, the recurring mention of rusty underbody and corroded brake pipes suggests an active oxidation process. The braking system also shows a history of binding at all four axles and pitted discs, which typically points to neglected maintenance or seized calipers resulting from low-speed use. Specific attention is also required for the suspension and hydraulic systems. The 2023 failure highlighted severely deteriorated rose joints and worn shock absorber bushes, while the 2024 test noted oil misting on the nearside front shock and further wear on lower bushings. Given the recent ABS failure in May 2026, the buyer should verify that the electronic braking system has been properly rectified and that the corroded brake hoses are not at immediate risk of failure.