1991 Jaguar XJ 4.0L Petrol · H775 OTG

The most recent MOT test on 2025-05-28 confirms the vehicle passed without defects, though it follows an unusual failure just three weeks prior on 2025-04-15—despite identical mileage. This abrupt reversal suggests either a temporary administrative error in the first test or a last-minute correction after a minor oversight was addressed. Beyond these two 2025 entries, the record shows consistent passes from 2021 onwards, with no recurring faults or advisories. The overall trend is stable, though the 2025 anomaly warrants scrutiny of whether critical components were overlooked or hastily repaired. The recorded mileage of 39,202 miles over roughly 35 years equates to an average of just 1,120 miles annually, which is exceptionally low for a vehicle of this age. The gap between the 2021 and 2022 tests—spanning 11 months with no mileage progression—indicates prolonged inactivity, likely exacerbating issues like fluid degradation, tyre dry-rotting, or suspension stiffness. The near-identical mileage in the 2021 failure and pass (38,574 miles) further suggests the car was stationary for an extended period before testing. Such low mileage can mask wear, but it also implies neglect in basic upkeep, such as fluid changes or even regular driving to prevent component deterioration. Given the lack of recorded defects, the primary focus for an in-person inspection should centre on suspension integrity , particularly the coil springs, bushes, and shock absorbers, which may have degraded during periods of inactivity. The 2025 failure—if genuine—could hint at a previously unresolved issue, so the brakes, particularly rear calipers or binding mechanisms, should be checked for uneven wear or drag. Structural corrosion, especially around the sills, wheel arches, and subframe, is another critical concern given the vehicle’s age; rust can compromise wheel bearings or suspension mounts without leaving visible MOT failures. Finally, verify fluid levels and condition—brake fluid, power steering, and engine oil—since low mileage often correlates with neglected servicing.