2012 Jaguar XJ 3.0L Diesel · OY12 AEV

The most recent MOT test for this Jaguar XJ, conducted on 16 February 2023 at 116,603 miles, resulted in a double entry—one pass and one fail—with no defects or advisories recorded. This suggests the vehicle passed the mandatory checks without major mechanical or structural issues, though the duplicate entries may indicate an administrative anomaly rather than a recurring fault. The last full test before this was in January 2022 at 164,810 miles, also with no defects noted. While the absence of advisories or failures implies the vehicle has not suffered from obvious, repeated mechanical failures, the irregularity of the 2023 entries raises a minor red flag regarding record-keeping consistency. No evidence of worsening trends is visible, but the lack of advisories in prior tests means potential issues—such as subtle suspension wear or brake fade—could have gone unnoticed. The recorded mileage progression reveals an unusual pattern for a vehicle of this age. Between January 2022 and February 2023, the mileage dropped from 164,810 to 116,603—a reduction of 48,197 miles—suggesting the car was either stored for an extended period or its mileage was reset. This is highly atypical for a Jaguar XJ, which typically accumulates around 8,000–10,000 miles annually. If the mileage was not reset, the vehicle may have been kept off the road for nearly four years, which could accelerate wear on components like seals, fluids, and battery health. Alternatively, if the odometer was tampered with, this would necessitate further verification. The 116,603 miles at the latest test aligns with roughly 8,300 miles per year over its lifespan, but the abrupt drop in mileage between tests demands clarification. Given the lack of advisories or failures in the MOT history, no specific recurring faults are highlighted, but a buyer should prioritise a thorough inspection of high-wear areas that often go unnoticed in standard tests. The suspension—particularly the coil springs, bushes, and dampers—should be examined for uneven wear or corrosion, as these components degrade gradually and may not trigger MOT failures until later stages. Brake systems, including calipers, pads, and discs, warrant close scrutiny, especially if the vehicle has experienced rapid mileage changes, as brake fluid degradation or binding calipers could develop without prior warning. Additionally, the underbody should be inspected for structural corrosion, particularly around wheel arches, sills, and the exhaust system, as this Jaguar’s age increases vulnerability to rust-related failures. Finally, the battery, fluid levels (coolant, brake, power steering), and tyre tread depth—despite no MOT failures—should be checked, as these are often overlooked but critical for roadworthiness.