2009 Mercedes C 2.1L Diesel · X4 MYM

The vehicle is currently roadworthy following a successful MOT on 2024-07-23 at 156,937 miles, though the test revealed several significant issues that indicate an ongoing deterioration in key mechanical systems. The most recent failure was due to excessive wear in the offside front lower suspension arm ball joint, combined with rear brake discs and pads approaching end-of-life, alongside a non-functional parking brake on one side and reduced efficiency across the system. These defects were not isolated; they reflect a worsening trend in suspension integrity and braking performance over the past three years, particularly evident in repeated warnings about front suspension joints and brake component wear. Mileage has increased steadily at approximately 9,232 miles per year, consistent with average usage for a 17-year-old vehicle. There are no significant gaps in the MOT history—annual tests have been conducted without interruption since 2021—suggesting regular maintenance and monitoring by previous owners. However, the steady rise in mileage coincides with a progressive decline in mechanical condition: from a clean pass in 2022 to minor advisories in 2021, then escalating to multiple failures in 2024. This pattern indicates that while the car has been driven regularly, critical components like suspension joints and brake systems have not been proactively replaced or serviced between tests. A prospective buyer must conduct a thorough in-person inspection of the front suspension, especially the lower ball joints on both sides, which have shown increasing play and eventual failure. The rear brakes should be assessed for wear, including disc thickness and pad depth, as these were flagged as worn but not excessive in the last test—indicating they may now be near replacement threshold. The parking brake system requires immediate attention, as it failed twice in the same test and remains inefficient. Additionally, the presence of slight wheel bearing play in 2021 and continued suspension concerns suggests potential early signs of drivetrain fatigue. Structural rust should also be checked, particularly around the suspension mounting points and chassis rails, given the age and exposure to UK weather conditions.