1978 Jaguar XJ 4.2L Petrol · AAH 76S

The most recent MOT, completed in March 2026, shows a clean pass with no defects recorded. This follows a consistent pattern of successful tests over the last several years, indicating the vehicle has been well-maintained recently. The mechanical trend appears to be stable and improving. While the 2017 MOT noted a slightly corroded nearside rear brake pipe and a slight leak from the oil light switch, no such issues have been recorded in the subsequent MOTs from 2018 through to 2026. This suggests that the previous concerns were addressed or have not progressed into significant defects. The mileage is exceptionally low for a 48-year-old vehicle, averaging only about 623 miles per year. This suggests very little wear on the engine, drivetrain, and suspension components. However, this mileage signal can be ambiguous; while it reflects light use, it can also imply the vehicle has spent long periods standing. Vehicles that are not driven regularly can sometimes experience issues with seals or fluid degradation, though the recent clean MOT results suggest this has not been a major problem. A buyer should first inspect the condition of the braking system, specifically checking the brake pipes for any signs of corrosion.