2006 Jaguar XK 4.2L Petrol · K100 LDA

The vehicle remains roadworthy but the maintenance trend shows a concerning shift towards mechanical wear and structural degradation. While it passed the most recent test in May 2026 at 90,891 miles, the tester identified multiple failures regarding the rear suspension assembly. Specifically, the nearside and offside rear suspension arm ball joints and anti-roll bar linkage dust covers are severely deteriorated. This indicates that rubber components are per per out due to age rather than mileage, which is typical for low-mileage vehicles of this era. The mileage profile is consistent with a low-use vehicle, averaging approximately 4,500 miles per year over its twenty-year life. Between May 2024 and May 2026, the car covered only 3,607 miles, suggesting it sits stationary for extended periods. However, this low usage correlates with the mechanical issues noted in May 2025 at 89,142 miles, where the record flagged a coolant leak and corrosion on the front sub-frame. Stationary vehicles often suffer the degradation of seals and the oxidation of metal surfaces that are not regularly cleaned. A buyer must prioritize a thorough physical inspection of the front sub-frame to determine if the corrosion noted in 2025 has progressed toward structural weakness. The severely deteriorated dust covers identified in the 2026 test require immediate replacement of the ball joints and linkages to prevent joint seizure or component failure. Furthermore, the previous coolant leak needs to be verified to ensure the cooling system remains pressure-tight, as thermal issues in these engines can lead to significant internal damage if left unaddressed.