2018 Mercedes-Benz C 2.1L Diesel · PL68 SOU

The most recent MOT test conducted in September 2025 resulted in a pass, but the presence of multiple advisories indicates a recent downward trend in the vehicle's mechanical condition. While the 2023 and 2024 records were largely clear, the 2025 inspection highlighted emerging issues with suspension components and tyre wear. Notably, the 2024 failure regarding an inoperative engine malfunction indicator lamp suggests a previous electrical or sensor-related fault that required rectification. The current maintenance trajectory suggests the vehicle is entering a phase where wear-and-tear components require proactive replacement to maintain roadworthiness. With 50,500 miles recorded over approximately eight years, the vehicle has averaged roughly 6,300 miles per year. This represents relatively light to moderate usage, which is generally favourable for the long-term health of the engine and drivetrain. Such mileage profiles often mean less mechanical fatigue on the gearbox and turbocharger components compared to high-mileage vehicles. However, this level of usage can sometimes result in age-related degradation of rubber components and fluids, which is consistent with the tyre perishing and suspension play noted in the recent MOT history. During your inspection and test drive, you must pay close attention to the front suspension. The advisories for slight play in both nearside and offside front lower suspension arm ball joints are significant. Listen for any knocking or clunking noises when driving over speed bumps or uneven road surfaces, and feel for any looseness or vagueness in the steering response. These ball joints are nearing the end of their service life and will likely require replacement soon to prevent further deterioration and potential failure. Additionally, verify that the engine malfunction indicator lamp is fully functional and that no warning lights remain illuminated on the instrument cluster, following the previous failure. Regarding the consumables, the MOT history shows a recurring pattern of tyre issues, ranging from perishing and cracking in 2022 to edge wear and cuts in 2025. Inspect all four tyres thoroughly for sidewall cracking, uneven tread wear, or any structural damage that could indicate poor alignment or age-related perishing. Furthermore, given the 2024 advisory.