2018 Mercedes-Benz C 2.1L Diesel · AF68 LDN

The most recent DVSA MOT test on the 2018 Mercedes-Benz C was conducted on 2025-12-04 and resulted in a pass, though it included a single advisory related to the nearside rear tyre exhibiting signs of damage, cracking, or perishing. This advisory stands out as the only recorded defect in the past four years, suggesting a stable maintenance record with no worsening trends in structural or functional components. The absence of failures or repeated advisories over the preceding three MOT cycles indicates that the vehicle has generally maintained roadworthiness, though the tyre advisory warrants further attention to prevent further deterioration or safety risks. The recorded mileage of 25,615 miles for a vehicle aged approximately eight years represents a relatively low annual usage rate of around 3,202 miles per year. Such low mileage can result from infrequent use, long periods of stationary storage, or a more leisurely driving profile. However, this usage pattern may mask underlying wear issues that could become critical if the vehicle is subjected to heavier or more frequent use. For instance, prolonged idling or standing can lead to brake system corrosion, particularly on the rear brakes where rust may form on discs or calipers, potentially causing binding or reduced braking efficiency. Additionally, low mileage alone does not account for calendar-based degradation of fluids such as brake fluid, which should be replaced every five years due to moisture absorption and potential embrittlement, or transmission fluid, which may degrade over time regardless of mileage. Given the clean MOT history aside from the tyre advisory, the prospective buyer should conduct a thorough inspection focusing on the nearside rear tyre for signs of further damage, such as deep cracks, delamination, or exposed cord layers, which could compromise tyre integrity and pose a risk of sudden failure. During a test drive, listen for unusual noises from the rear suspension or brakes, particularly clunks or grinding sounds that may indicate worn suspension bushes, binding calipers, or corroded brake components. The buyer should also check for fluid leaks under the vehicle, particularly around the rear wheels, which could signal failing wheel bearings or seals. For the remaining tyres, inspect the sidewall for signs of perishing, such as cracking or blistering, which can weaken the tyre structure and lead to sudden blowouts. Beyond the tyre and suspension checks, the buyer should verify the condition of the 12V battery, as prolonged disuse can lead to sulphation or internal degradation, reducing its capacity and reliability. Inspect the battery terminals for corrosion or loose connections, and consider a load test to assess its health. Additionally, examine the brake system for signs of corrosion on the rear discs or calipers, which may require cleaning or replacement if rust has formed. For fluids, check the brake fluid level and condition, as well as the condition of the engine oil, transmission fluid, and coolant, ensuring they meet the manufacturer’s specifications and have not degraded over time. Finally, verify that the service book is up to date, particularly for the timing belt replacement, which should have been conducted at the recommended interval of 100,000 to 120,000 miles or every five years, whichever comes first, to prevent catastrophic failure of the camshaft or valves.