2005 Jaguar S-Type 4.2L Petrol · HV55 AEW

The Jaguar S-Type’s most recent MOT test on 2025-10-15 confirms it passed with no recorded defects at 123,266 miles, though it had previously failed on 2025-10-08 at just one mile less—an unusual reversal suggesting either a minor oversight in the first test or a last-minute correction. The pattern of alternating pass/fail around the same mileage in consecutive years (2024 and 2025) is concerning, as it implies either inconsistent testing or unresolved issues that narrowly avoided failure. Without advisory notes or defect codes, the cause remains speculative, but the lack of failings in the 2023 test at 108,075 miles suggests the vehicle has not experienced a sudden or catastrophic decline. The most recent pass, however, is just under nine months old, which is acceptable but not ideal for a vehicle of this age and mileage. The recorded mileage of 123,266 miles over 21 years equates to approximately 5,870 miles annually, a figure significantly lower than the average for a luxury vehicle of this generation. The gaps between tests—particularly the 12,787 miles covered between 2024-10-01 and 2024-10-11—are unusually rapid for a car that has otherwise sat with minimal movement. This suggests either sporadic use with bursts of activity or potential odometer manipulation, though the latter is harder to verify without service records. The consistency of the October testing dates across multiple years also hints at deliberate scheduling, which could mask underlying issues if maintenance has been deferred. Given the alternating pass/fail pattern, a buyer should prioritise a thorough inspection of the braking system, particularly the rear calipers and pads, as binding brakes were a common failure point in similar models. The suspension components—including coil springs, bushes, and dampers—should be examined for wear or corrosion, especially around the wheel arches and subframe mounts, where rust can compromise structural integrity. The exhaust system warrants close scrutiny for leaks or excessive corrosion, particularly if the vehicle has spent periods stationary. While the MOT record shows no explicit failures, the lack of advisory notes means hidden issues—such as minor frame corrosion or degraded power steering components—cannot be ruled out without a professional inspection.