2016 Jaguar XJ 3.0L Diesel · BT66 AEJ

The Jaguar XJ’s most recent MOT test, conducted on 12 December 2025 at 57,983 miles , confirms it remains roadworthy with no defects recorded. The vehicle has maintained a consistent pass status across all tests since December 2022, with the sole exception of a non-defect failure in November 2023—likely a procedural or administrative anomaly rather than a mechanical issue. This suggests the car has been kept in a stable condition, though the lack of advisories or defects does not preclude hidden wear. The most recent test was conducted just seven months ago , which is acceptable but not ideal for a vehicle of this age, as it exceeds the standard three-month window for MOT renewal. The absence of recurring faults is reassuring, but the non-defect failure in late 2023 warrants scrutiny of whether the test centre’s procedures were consistent or if the vehicle was subjected to a less rigorous inspection that time. The recorded mileage of 57,983 miles over a 10-year lifespan equates to approximately 5,800 miles per year , a figure significantly lower than the UK average for a vehicle of this age. This suggests either light usage, extended periods of storage, or a combination of both. The most notable gap is between the December 2022 test (40,031 miles) and the November 2023 failure (52,771 miles) , a 12,740-mile span —nearly two years of no testing. While this could indicate the vehicle was either rarely driven or stored, it also raises questions about whether critical maintenance was deferred during this period. The subsequent 6,124 miles between the failure and the December 2023 pass suggests a brief reactivation, but the inconsistency in testing intervals is concerning. Buyers should verify if the vehicle was serviced or inspected privately during this gap, as prolonged inactivity can accelerate issues like suspension corrosion or battery degradation. Given the lack of defects in the MOT history, the primary focus for an in-person inspection should centre on suspension integrity and corrosion , particularly given the vehicle’s age and potential storage periods. Check for worn or leaking suspension bushes , coil spring fatigue (common in high-mileage Jaguars), and binding calipers or seized wheel bearings , as these are often not flagged in basic MOT tests but can compromise handling. The brake system should be examined for uneven wear or corrosion on discs and callipers, especially if the vehicle was stored with dampness. Examine the exhaust system for leaks or rust-through, as emissions-related failures are rare but can indicate deeper structural issues. Finally, assess the underbody and wheel arches for corrosion, as the XJ’s construction is prone to rust progression over time. While the MOT record suggests no immediate red flags, these areas are where silent deterioration often begins.