2006 Jaguar S-Type 2.7L Diesel · YD06 SHJ

This 2006 Jaguar S-Type presents a mixed but broadly stabilising maintenance picture. The most recent MOT, conducted on 6 February 2024 at 73,140 miles, passed with four corrosion-related advisories, none of which were new. The front and rear sub-frames, rear coil springs, and general vehicle structure were all flagged as corroded but not seriously weakened, mirroring almost identical findings from the January 2023 test. The key improvement is that the January 2023 failure, which cited structural rigidity significantly reduced on both front inner panels and excessive corrosion near the rear body mount, appears to have been addressed before the retest just three weeks later. The trend since that repair has been stable, with no new failures or fresh mechanical faults appearing in the subsequent 2024 pass. However, the underlying corrosion has not been arrested, merely managed to remain below the failure threshold. The mileage pattern tells an unusual story. Between 1 October 2021 at 59,244 miles and 29 September 2022 at 59,661 miles, the car covered just 417 miles in nearly a full year. It then sat at 59,844 miles for the 5 January 2023 failure and 59,860 miles for the 26 January 2023 pass, indicating negligible use over that three-week window. The jump from 59,860 miles in January 2023 to 73,140 miles by February 2024 represents 13,280 miles in roughly thirteen months, a sharp reversal from the prior period of near-static mileage. This suggests the car either changed hands or was returned to regular use after a prolonged idle spell. The overall average of around 3,657 miles per year remains low for a vehicle of this age, but the uneven distribution raises questions about how consistently mechanical components were exercised and lubricated. A buyer should focus the physical inspection on the front and rear sub-frame mounting points, where corrosion has been a persistent advisory theme across four consecutive tests. The rear coil springs have also been repeatedly flagged for corrosion since January 2023, and given the car's age and the known susceptibility of S-Type rear suspension to spring fracture when corrosion takes hold, a close visual check for pitting or cracking is warranted. The seat belt anchorages, flagged as corroded but not excessive in both 2021 and 2022, should be inspected to confirm no further deterioration has occurred, as these are safety-critical load paths. The offside rear hydraulic brake caliper leak noted in September 2022 did not recur in subsequent tests, but the rear braking system should still be checked for uneven pad wear or sticking, particularly given the car's extended period of low mileage. The headlamp lens condition, noted as slightly defective in 2021 and again in 2022 and 2024, appears to be a slow-developing cosmetic issue rather than a safety concern, but it may affect beam pattern and should be verified against the MOT standard. Overall, the record shows a car that has been kept on the road despite chronic surface corrosion rather than being neglected outright. The repairs to the structural failure points in early 2023 suggest at least one previous owner invested in keeping the car legal, but the recurring sub-frame and coil spring advisories indicate no long-term rust-proofing or undersealing programme has been applied. A thorough underside inspection with a torch and probe is essential before purchase.