2018 Mercedes-Benz S-Class 3.0L Petrol · 99 C

The 2018 Mercedes-Benz S-Class presents a stable and well-maintained roadworthiness profile. The most recent MOT, conducted on 13 October 2025 at 48,179 miles, passed with zero defects recorded. This clean bill of health, following a history of consistent passes, indicates the vehicle is currently in sound mechanical order. The maintenance trend is stable, showing no signs of deterioration or escalating neglect. The mileage accumulation of roughly 6,022 miles per year is entirely typical for a vehicle of this age and class. The record shows a steady, linear progression from 8,359 miles in November 2021 through to 48,179 miles in October 2025, with no sudden spikes or prolonged periods of inactivity that would raise concerns about long-term standing damage or odometer anomalies. The annual test intervals are regular and the mileage gaps between them are consistent, suggesting routine daily use rather than sporadic or extreme driving patterns. A buyer should still conduct a thorough in-person inspection, focusing on the components that have historically drawn attention. The October 2024 test at 40,688 miles flagged an offside front tyre worn close to its legal limit and a nearside front tyre with sidewall damage. While these were rectified for the subsequent test, recurring tyre wear on the front axle warrants a close examination of the suspension geometry. Given the S-Class's complex air suspension system, a physical check for uneven tyre wear patterns, leaking air struts, and correct ride height is essential. The age and mileage also make it prudent to inspect the condition of all brake discs and pads, along with the integrity of the vehicle's underbody and subframes for any signs of corrosion, despite no such defects appearing in the recorded history.