2007 Mercedes-Benz S-Class 3.0L Diesel · V8 FCT

The 2007 Mercedes S-Class holds a valid MOT certificate following its most recent test on 1 August 2025 at 99,896 miles, passing with only a minor advisory for an oil leak that was not deemed excessive. The maintenance trend over the past three years is broadly stable, though it reveals a recurring issue with the parking brake system that has required attention in consecutive test cycles. In the 29 July 2025 failure, the tester flagged parking brake efficiency falling below requirements alongside the same oil leak advisory. The vehicle then passed two days later on 1 August 2025, suggesting the parking brake fault was rectified promptly. A similar pattern appeared in 2024, when the car failed on 31 July at 94,469 miles for parking brake efficiency less than 50 per cent of the required value, then passed the following day on 1 August at 94,475 miles. This indicates the parking brake deficiency was addressed between tests, but the recurrence points to an underlying vulnerability in the system rather than a one-off fault. The mileage accumulation is notably low for a vehicle of this age. Between the July 2023 test at 87,463 miles and the July 2024 test at 94,469 miles, the car covered approximately 7,000 miles in twelve months. From August 2024 to August 2025, the mileage increased by only 5,421 miles, and the recorded figure has remained static at 99,896 miles since the most recent test. This plateau suggests the vehicle may have been standing for extended periods or used only sparingly in recent months. Low annual mileage of roughly 5,258 miles per year over the car's nineteen-year life can preserve certain components but also introduces risks associated with prolonged inactivity, including deteriorated rubber seals, brake surface corrosion, and fluid degradation. A buyer should focus the physical inspection on the parking brake mechanism, given its repeated appearance in the MOT record. The system may suffer from seized cables, binding calipers, or worn rear brake components that degrade when the car sits idle. The persistent oil leak advisory, though minor, warrants investigation at the engine and transmission area to determine whether it stems from degraded gaskets or seals that may worsen with age. Suspension bushes, coil springs, and exhaust mountings should be examined closely, as these deteriorate through both use and long periods of standing. Structural corrosion beneath the vehicle and around load-bearing points is a priority on a nineteen-year-old luxury saloon, particularly if the car has been stored on damp ground or used infrequently in winter conditions.