2015 Mercedes-Benz C 2.1L Diesel · WG65 AAJ

The most recent MOT test, conducted on 2025-11-29, resulted in a passing outcome with two advisories that warrant careful attention. The vehicle’s maintenance history over the past three years shows a stable trend, with no failures recorded and only minor advisories appearing intermittently. The consistent passing of MOTs suggests that while wear-related issues are present, they are not progressing to a critical stage that would have resulted in a failure. The advisories regarding tyre wear and condition—specifically the nearside rear tyre approaching the legal limit and the offside rear tyre showing signs of cracking or perishing—highlight areas where ongoing monitoring is essential. These advisories are not failures but indicate that the tyres are nearing or have exceeded their safe operational lifespan, which could compromise traction, hydroplaning resistance, and overall road safety if not addressed promptly. The recorded mileage of 85,448 miles for a vehicle aged approximately 11 years represents a reasonable annual usage rate of around 7,768 miles per annum, which is typical for a car of this age and class. This level of mileage alone does not necessarily indicate excessive wear, but it does suggest that the vehicle has undergone regular use, particularly in the past few years given the consistent mileage accumulation. There are no evident gaps in usage that might have allowed for significant standing corrosion or fluid degradation, though prolonged idleness could still pose risks to components like the brake system or battery. The wear patterns observed in the MOT advisories—particularly the edge wear on the nearside rear tyre and the cracking on the offside rear tyre—are consistent with typical tyre usage over this mileage range, but they underscore the importance of maintaining a schedule for tyre rotation and replacement to prevent uneven wear or premature failure. To proceed with a thorough inspection, the prospective buyer should begin by examining the tyres closely, focusing on the tread depth, sidewall integrity, and signs of uneven wear. The nearside rear tyre’s edge wear suggests it may have been subjected to uneven camber or directional changes, which could indicate suspension misalignment or steering system issues. Listen for any unusual noises during a test drive, particularly clunks or rattles from the rear suspension, which might reveal loose or worn suspension bushes, broken coil springs, or damaged control arms. The offside rear tyre’s cracking or perishing indicates that it should be replaced soon, ideally within the next 5,000 to 10,000 miles, as further deterioration could compromise grip and safety. Additionally, check for any fluid leaks around the rear wheels, which could signal failing wheel bearings or seals. Beyond the tyres, the buyer should inspect the vehicle’s brake system for signs of corrosion or binding, especially on the rear calipers, which are more prone to rust when the vehicle stands for extended periods. Corrosion on brake discs or calipers can lead to reduced braking efficiency or even complete failure if left unaddressed. Verify that the brake fluid level is adequate and that there are no signs of contamination or fluid degradation, which can occur over time even with regular use. Given the vehicle’s age and mileage, it is prudent to check the 12-volt battery and associated electrical systems for signs of weakness or failure, as older batteries may struggle with the demands of modern electronics. Finally, ensure that the service history is up to date, particularly for fluid replacements—oil, brake fluid, coolant, and transmission fluid—since these should be refreshed at regular intervals, even if the vehicle has not been driven extensively. A comprehensive inspection of the exhaust system for leaks or excessive noise, along with a check for emissions-related advisories in the MOT history, should also be conducted, as the vehicle’s age may have led to minor wear in these areas. If any of these checks reveal issues, prioritise addressing them to maintain the vehicle’s roadworthiness and reliability.