2017 Jaguar XJ 3.0L Diesel · P1 DUB

The Jaguar XJ’s most recent MOT history, ending in a July 2025 pass at 66,197 miles, suggests a stable roadworthiness trend with no recurring defects or advisories. The testers did not record any failures or even minor issues in any of the five recorded tests, including the consecutive pass and fail in July 2025—an anomaly that may indicate a temporary administrative oversight rather than a mechanical problem. The vehicle’s structural integrity, suspension components, and major braking systems appear to have passed scrutiny consistently over nearly four years, though the lack of advisories does not preclude hidden wear. The absence of corrosion-related failures is notable, but this does not rule out hidden rust in wheel arches, sills, or subframes, which are common weak points in high-value vehicles of this age. Mileage progression shows a steady accumulation of approximately 7,355 miles annually, which is typical for a vehicle of this class. The gap between the 2022 and 2023 tests—covering 12,815 miles in just over a year—does not indicate aggressive use but rather reflects the standard MOT cycle. The July 2025 pass/fail repeat at nearly identical mileages (66,196 vs. 66,197) is unusual and warrants clarification, as it suggests either a procedural error or a brief period of non-use before retesting. There is no evidence of extended periods of inactivity or neglect, but the mileage does not account for potential off-road use, track days, or high-speed driving, which could accelerate wear on suspension bushes, coil springs, or drivetrain components. Given the clean MOT record, a buyer should prioritise a thorough inspection of the suspension geometry, particularly the rear coil springs and bushes, which are prone to fatigue in high-mileage luxury vehicles. The binding calipers or uneven brake disc wear noted in some similar models should be checked, even if not flagged here, as they often develop gradually. Corrosion in wheel arches, sills, and the subframe—common in Jaguar XJs—must be scrutinised, as hidden rust can compromise structural integrity without immediate MOT failure. The exhaust system, particularly at the rear, should be inspected for leaks or excessive corrosion, as emissions systems in this model can fail silently. Finally, the electrical system, including the battery and alternator, should be tested, as age-related failures are common in high-mileage luxury cars.