2005 Mercedes S-Class 3.2L Diesel · K8 NNN

The latest MOT on 1 October 2025 failed. The failure lists thin front‑off brake pads, rear‑near brake pads under 1.5 mm, deteriorating rear brake hoses on both sides, slight play in both front wheel bearings, and corroded rear brake pipe covered in grease. The same date also shows a pass entry, but the failure items dominate the result and must be addressed before the car can be legally driven. Across the last three years the MOT records reveal a clear pattern of brake‑system wear. In 2024 the rear pads and rear off‑side pads were already “wearing thin” and the brakes were noted as imbalanced. By 2025 the pads have crossed the minimum thickness, the hoses are deteriorating, and the wheel bearings are developing play. The corrosion of brake pipes has been present since 2022 and persists. This progression suggests the braking system is deteriorating rather than stabilising. Mileage is 108,303 mi on a 2005 model – roughly 5,150 mi per year, which is low for a vehicle of this age. Low mileage can indicate light use or long periods of storage, but it does not guarantee component longevity.