2003 Jaguar XJ 3.0L Petrol · P3 GWJ

This 2003 Jaguar XJ is currently unroadworthy, having failed its MOT on 22 May 2026 at 143,708 miles. The maintenance trend is clearly worsening. A car that passed cleanly in 2024 and 2025 has deteriorated sharply within twelve months, with the latest test revealing multiple active defects across the braking, suspension, lighting, and steering systems. Several of these are not new issues but escalations of previously flagged faults, suggesting a period of neglected upkeep. The mileage pattern is broadly consistent with light, regular use. The car covered 1,885 miles between the May 2025 pass at 141,823 miles and the May 2026 failure at 143,708 miles, which is well within the typical annual range for a vehicle of this age. There are no alarming gaps or sudden spikes in the recorded intervals, and the overall accumulation of roughly 6,200 miles per year over twenty-three years points to steady rather than excessive use. The record itself is complete and continuous, with no missing annual tests. The braking system demands immediate attention. The offside front service brake was flagged as binding but not excessively in both 2024 and 2025, yet by May 2026 it had progressed to an excessive binding fault. Front brake pads have appeared as wearing thin in every test from 2022 through 2026, a recurring advisory that was never fully addressed before the failure. Rear brake discs and hoses have also shown corrosion and surface wear across multiple years. A buyer should have the entire braking system stripped and inspected, paying particular attention to caliper slide mechanisms, hose integrity, and the condition of all four discs. Suspension and steering components show a similar pattern of gradual decline. Both front shock absorbers were flagged with reduced damping in the 2026 failure, while the offside rear shock absorber bush was excessively worn. Front upper and lower suspension arm ball joint dust covers have deteriorated, and the nearside front wheel bearing was recorded with both excessive play and a rough rotation at the most recent test. The nearside rear lower suspension arm bush was also excessively worn. The 2023 test noted rear sub-frame corrosion that was not considered serious at the time, but a buyer should re-examine that area carefully given the age of the vehicle and the general trend of deterioration across the understructure.