2018 Mercedes-Benz S-Class 2.9L Diesel · N6 BAS

The vehicle is currently roadworthy, though the maintenance trend indicates a reactive rather than proactive approach to consumables. The most recent test in September 2025 at 55,797 miles resulted in a pass despite an advisory for a nearside front tyre reaching the legal limit and showing edge wear. This follows a period of instability in late 2023 where the car failed its inspection due to multiple tyre defects including structural separation and insufficient tread depth. While the immediate faults were rectified, the history suggests the owner only addresses tyre issues once they trigger MOT failures. The mileage pattern is consistent with low-use luxury travel, averaging approximately 7,000 miles per year over its eight-year life. Between September 2022 at 37,626 miles and September 2024 at 49,394 miles, the vehicle covered over 11,000 miles. The interval between the 2024 test and the 2025 test saw an additional 6,403 miles. This low annual mileage generally reduces mechanical strain on the complex S-Class drivetrain and suspension, but it increases the risk of rubber-based components perishing or seizing due to infrequent use. A buyer should focus their in-person inspection on the braking system and wheel geometry. The September 2022 record flagged fluctuating front service brakes, which often indicates warped discs that should be checked for uneven thickness or surface scoring. Given the recent edge wear noted in 2025 and the previous structural tyre failure in 2023, a professional wheel alignment check is essential to ensure suspension components are not causing premature tyre degradation. Additionally, inspect the sidewalls of all tyres for cracking, as the low-mileage history often leads to dry rot in aged rubber that remains legally treaded.