2009 Mercedes-Benz S-Class 3.0L Diesel · PL09 DUH

The vehicle currently holds a clean roadworthiness status, passing its most recent MOT in June 2026 at 89,851 miles with no defects recorded. The maintenance trend shows signs of significant improvement following a period of mechanical instability. While the car struggled with braking components in 2023 and 2024, the consecutive clean passes over the last two years indicate that the current owner is addressing identified faults and maintaining the vehicle effectively. At 17 years old, the recorded mileage of 89,851 miles is remarkably low, averaging approximately 5,300 miles per year. The history reveals long periods of low usage, particularly between 2020 and 2022 where the car covered only roughly 7,000 miles in two years. While low mileage generally reduces wear on the drivetrain and engine, the intermittent nature of use on a Mercedes S-Class often leads to specific issues such as corrosion on stationary brake lines and the degradation of rubber components that do not benefit from regular mechanical operation. A buyer must focus specifically on the braking system, given the recurring history of corroded front brake pipes noted between 2018 and 2020, and the parking brake efficiency failures seen in 2023 and 2024. The 2023 test also flagged fluctuating service brakes and worn discs, which suggests the braking system may be prone to uneven wear despite low mileage. Additionally, the previous wheel bearing play reported in 2020 warrants a physical inspection of the front suspension assembly to ensure the wear has not progressed, as these components are common points of failure on heavy luxury salans of this age.