2018 Mercedes-Benz C 2.1L Diesel · SL18 RCF

The vehicle is currently roadworthy but the maintenance trend shows a clear decline regarding suspension and tyre management. While it passed the most recent test in June 2025 at 107,168 miles, the tester identified multiple mechanical defects that were absent in previous years. The presence of play in both front-side lower suspension arm ball joints, alongside a corroded nearside rear coil spring, indicates that the suspension system is now reaching the end of its functional life. The mileage pattern reflects high-intensity use for an eight-year-old vehicle, averaging over 13,000 miles annually. There is a significant surge in usage between July 2023 and June 2025, where the car covered over 42,000 miles in just two years. This rapid accumulation correlates with the transition from a clean record at 45,843 miles to a series of advisories and failures in the 2024 and 2025 tests. The high annual mileage likely explains the accelerated wear on rubber-bound bushings and drivetrain-related components. A buyer must prioritise a thorough inspection of the front suspension geometry, as the history shows uneven tyre wear across multiple axles. The recurring issues with uneven tread and exposed cords noted in 2023 suggest persistent alignment problems or worn shock absorbers that have not been adequately addressed. Furthermore, the corroded rear coil spring requires immediate attention to prevent structural failure, and the play in the front ball joints should be checked for further deterioration to ensure steering precision and stability.