2010 Jaguar XJ 3.0L Diesel · H11 FBA

The most recent MOT, carried out on 4 November 2025, was passed with no recorded defects, indicating that the vehicle met the statutory safety and emissions requirements at that date. However, the MOT record over the past five years shows a mixed picture: three failures in 2021, 2023 and 2025, each highlighting serious structural corrosion, suspension component failure and brake‑system degradation, interspersed with passes that only carried advisories. The trend is therefore not uniformly improving; while the latest test cleared, the recurrence of corrosion‑related advisories and the recent failure for a fractured front coil spring suggest that underlying wear is still progressing and may re‑appear if not addressed promptly. At 75,982 mi the Jaguar XJ is remarkably low for a 2010 model, averaging just under 4,800 mi per year. Such modest usage often points to long periods of inactivity or very gentle driving, which can be a double‑edged sword. Low mileage reduces wear on engine internals, transmission gears and typical consumables, yet prolonged standing tends to accelerate age‑related deterioration such as rubber hardening, battery sulphation and under‑body corrosion. There are no obvious gaps in the recorded mileage, but the low annual average reinforces the need to scrutinise components that suffer more from time than distance. When inspecting the car, give particular attention to the rear sub‑frame on the off‑side; the MOT notes have moved from advisory corrosion to a major defect describing serious weakening, which could manifest as a noticeable flex or clunk when applying power or over bumps. Examine the underside for rust, especially around the rear cross‑member and under‑body support brace, and look for any distortion or paint blistering that would indicate structural compromise. The off‑side front coil spring that failed in 2025 should be inspected for cracks or fatigue, and the front suspension arm pins and bushes, repeatedly flagged as worn, should be checked for excessive play by pushing the wheel forward and backward and listening for metallic creaks. The rear outer brake hose ferrule, previously deemed excessively corroded, must be examined for leaks or soft spots, and a road test should reveal any brake pedal pulsation or shudder that could signal hose or caliper deterioration. Also verify that the tyre on the off‑side rear, previously close to the legal limit, shows even tread wear and no sidewall cracking, as ageing tyres can lose structural integrity even with low mileage. Beyond the specific MOT items, a comprehensive buyer should assess the condition of the 12‑volt battery, which may have suffered from long periods of inactivity; a load test or checking the electrolyte level will reveal any loss of capacity. Time‑based fluids such as engine oil, coolant, brake fluid and power‑steering fluid should be replaced if service stamps are absent, as degradation can occur irrespective of mileage. Inspect the brake discs for surface rust or scoring, and ensure the calipers move freely without binding. Finally, confirm that the service book contains regular oil changes, suspension checks and corrosion prevention treatments, and request a full mechanical inspection to verify that any remedial work following the 2025 failure has been correctly performed before committing to purchase.