1986 Porsche 928 S 5.0L Petrol · D771 BLE

The vehicle remains roadworthy but the maintenance trend shows a persistent failure to address known recurring mechanical defects. The most recent test in January 2026 at 60,792 miles passed despite carrying identical advisories for corroded rear coil springs and a non-excessive hydraulic leak. These issues have appeared in every record for three years, indicating a pattern where the owner is performing only the minimum required to pass the MOT rather than undertaking proactive preventative maintenance. The mileage profile is exceptionally low for a forty-year-old vehicle, averaging approximately 1,520 miles per year. Between January 2025 and January 2026, the car covered only 507 miles, while the interval between the two 2023 tests saw just 28 miles driven. This low usage suggests the car sits stationary for long periods, which often contributes to the degradation of rubber components, the drying of fluid lines, and the development of corrosion seen on the suspension components. A buyer must prioritize a thorough inspection of the rear suspension assembly, as the corrosion on both coil springs has been flagged since at least February 2023 without resolution. The recurring hydraulic leak, noted in 2023, 2025, and 2026, requires a pressure test to determine if it originates from the shock absorbers or steering-related lines. Furthermore, the 2023 failure due to a leaking fuel pipe and the previous pitting on front inner brake discs suggest that while the car has low mileage, the chemical seals and metal surfaces in the fuel and braking systems have likely suffered from age-related decay rather than mechanical wear.