2005 Mercedes-Benz C 2.1L Diesel · AF05 FJO

The most recent MOT test on 2026-09-01 reveals the vehicle passed without any recorded defects, though the prior MOT history indicates a pattern of recurring advisories and one major failure. The overall maintenance trend appears to have stabilised in recent years, with no further failures or severe issues since 2022, except for the persistent minor and advisory defects noted in that test. The 2022 failure—particularly the horn issue—suggests a period of either neglect or intermittent operational problems, while the subsequent tests have shown consistent compliance, indicating either corrective action or reduced exposure to those specific issues. However, the presence of recurring advisories, especially on brakes and structural components, warrants careful attention to ensure no underlying wear progression has been overlooked. The recorded mileage of 81,393 miles for a vehicle aged approximately 21 years represents a remarkably low annual usage rate of around 3,876 miles per year, which is unusually low for its age. Such low mileage often correlates with periods of prolonged inactivity, particularly if the vehicle has been stored rather than driven regularly. This could imply that the car has experienced significant periods of non-use, which can exacerbate issues such as corrosion from standing, fluid degradation over time, and potential mechanical stiffness from lack of movement. While low mileage generally reduces wear on consumables like tyres and brakes, it also raises concerns about hidden wear from static conditions, such as brake disc corrosion or caliper binding, and potential fluid degradation that may not be apparent during routine checks. As a prospective buyer, the most critical areas to inspect are the brake system, suspension components, and structural integrity, given the recurring advisories from previous MOTs. Begin with a thorough examination of the brake discs and callipers, particularly on the near and offside rear, where pitting and scoring were noted in 2022. Listen for uneven brake pedal travel or a shuddering sensation while braking, which could indicate warped discs or seized callipers. Inspect the rear sub-frame and offside front hydraulic calliper for visible corrosion or signs of rust progression, especially around the brake lines and mounting points. Test the horn function to ensure it operates correctly, as the 2022 failure highlights a potential intermittent or faulty connection. Additionally, check for any fluid leaks under the vehicle, particularly around the hydraulic brake system, as corrosion in the calliper assembly could lead to fluid loss over time. For the vehicle’s age and low mileage profile, focus on practical checks that address both wear and potential static-related issues. Inspect the tyres for signs of sidewall perishing or cracking, which can occur even with low mileage if the vehicle has been stored for extended periods. Verify the condition of the 12V battery, as prolonged inactivity can lead to sulphation or terminal corrosion, reducing reliability. Check the brake discs for signs of corrosion or binding, particularly on the rear, where standing can accelerate rust formation. Examine the suspension components, including coil springs and shock absorbers, for any stiffness or unusual noises when moving the vehicle, as prolonged immobility can cause suspension bushes to stiffen or dry out. Finally, consider the calendar-based servicing of fluids such as brake fluid, coolant, and transmission fluid, as these can degrade over time regardless of mileage, especially if the vehicle has been stationary for significant durations. Ensure the service history is up to date, particularly for the brake system and suspension, as these are the most vulnerable areas given the advisories.