2005 Jaguar S-Type 2.5L Petrol · BC05 OSM

The Jaguar S-Type presents a mixed but ultimately concerning maintenance history, with the most recent MOT tests revealing a pattern of repeated failures without substantive defects recorded. The August 2025 test at 109,186 miles passed cleanly, yet the preceding failure just two months earlier—at 109,168 miles—suggests the vehicle was only just roadworthy, despite no mechanical issues being logged. This inconsistency raises questions about the accuracy of the testing process or the vehicle’s actual condition, as a car of this age and mileage should have had at least minor advisories or defects by now. The absence of recorded faults in all five tests is unusual for a 21-year-old vehicle, particularly one with such low annual mileage, which typically indicates either exceptional preservation or, more likely, a history of deferred maintenance. The mileage accumulation is notably low—around 5,200 miles per year—suggesting either infrequent use or prolonged periods of inactivity. The most recent tests in 2025 show just 118 miles covered between the failed June test and the passed August test, a span of two months with no recorded movement. This stagnation could imply the car has been stored or used very sparingly, potentially exacerbating issues like tyre degradation, fluid breakdown, or corrosion from prolonged exposure to moisture. The gap between the 2024 and 2025 tests is also striking: from May 2024 (103,230 miles) to June 2025 (109,168 miles), the vehicle covered just 5,938 miles over 13 months, reinforcing the pattern of minimal use. Such low mileage reduces wear on drivetrain components but increases the risk of hidden problems, as fluids and seals degrade over time even without movement. Given the lack of recorded defects, a buyer should prioritise a thorough inspection of components prone to silent failure in low-mileage, long-standing vehicles. Pay particular attention to the suspension—check for degraded bushes, worn coil springs, or uneven tyre wear, which could indicate alignment or steering issues. The braking system should be scrutinised for binding calipers, uneven disc thickness, or fluid leaks, as these are common in older Jaguars and may not have been caught in MOT tests if only minor. Structural integrity is another critical area; inspect for corrosion in wheel arches, sills, and underbody panels, especially if the car has spent time in damp conditions. Finally, verify all fluid levels and condition, including brake, coolant, and differential oils, as stagnant fluids can lead to premature failure. The absence of advisories in the MOT history makes this inspection all the more vital.