2005 Jaguar XJ 3.0L Petrol · MW05 UAC

The 2005 Jaguar XJ presents a stable and generally positive mechanical picture at its most recent MOT on 21st July 2025, where it passed at 102,145 miles with zero defects recorded. That clean pass followed a failure on the same day for an inoperative engine malfunction indicator lamp, a minor electrical compliance item rather than a mechanical defect. The maintenance trend is broadly stable. The only recurring theme is age-related tyre perishing, noted in May 2024, which is a consumable item and not indicative of underlying mechanical neglect. The mileage pattern confirms very light use. Between May 2022 and July 2025, the car covered just 5,725 miles over three years, averaging under 2,000 miles annually. The jump from 99,974 miles in May 2024 to 102,145 miles by July 2025 represents 2,171 miles in fourteen months, a modest uptick that still keeps annual mileage well below the UK average. There are no suspicious gaps or sudden spikes in the record. The data is sparse but entirely consistent with a low-mileage vehicle that has seen gentle use rather than long periods of total inactivity. A buyer should still inspect the tyre sidewalls carefully. The May 2024 advisory flagged perishing and cracking on both rear tyres, along with a nail in the nearside rear. At 21 years old, rubber components across the car, including suspension bushes, engine mounts, and coolant hoses, may have deteriorated through age rather than mileage. The underbody and suspension mounting points warrant a close check for corrosion, particularly given the XJ's aluminium monocoque construction and the potential for galvanic corrosion where steel fasteners meet aluminium panels. The engine MIL fault from July 2025 was rectified quickly, but verifying the emissions system and ensuring the catalytic converter and lambda sensors are functioning correctly remains prudent. The braking system and handbrake mechanism should also be inspected, as low-mileage vehicles can suffer from sticking calipers and corroded discs from prolonged standing.