1999 Jaguar XJ 3.2L Petrol · S990 APG

This Jaguar XJ’s most recent MOT test on 2023-11-09 passed without recorded defects, but the immediate preceding test on 2023-09-28 failed—despite no specific faults being logged. The pattern over the past five years shows inconsistent testing intervals, with two consecutive failures in 2022 and 2023, both occurring just one month apart. While the vehicle has passed tests in intervening years, the lack of clarity in the failure reasons—particularly the absence of any documented issues—raises suspicion. Buyers should treat this as a red flag, as unrecorded failures often mask unresolved mechanical concerns, such as intermittent brake binding, suspension wear, or exhaust leaks that evade standard inspection. The recorded mileage of 77,791 miles over approximately 27 years suggests an average of just 2,881 miles per annum, which is unusually low for a vehicle of this age. This pattern implies prolonged periods of inactivity, which accelerates deterioration in critical areas like suspension bushes, coil springs, and rubber seals. The gaps between tests—particularly the 18-month interval between the 2021 and 2022 tests—further indicate neglect, as extended storage without maintenance accelerates corrosion and component degradation. The low mileage alone does not guarantee reliability; rather, it signals that the vehicle may have suffered hidden damage from moisture, rust, or prolonged idling. Given the sparse MOT record, a buyer should prioritise a thorough inspection of the suspension system, focusing on worn or perished bushes, corroded coil springs, and binding calipers. The brakes, despite no recorded failures, warrant close examination for uneven wear, glazed linings, or seized components—especially if the vehicle has been stationary for extended periods. Structural integrity is another concern; the chassis and subframe should be checked for rust penetration, particularly around wheel arches and sills, while the exhaust system should be inspected for leaks or collapsed sections. The lack of documented faults in recent tests does not preclude serious underlying issues, so a pre-purchase inspection by a qualified mechanic is essential.