2017 Mercedes-Benz C 2.1L Diesel · AF67 WNH

The most recent DVSA MOT test on the 2017 Mercedes-Benz C was conducted on 2025-12-19 and resulted in a clean pass, with no recorded defects. However, the preceding MOT history reveals a pattern of advisories rather than outright failures, suggesting that while the vehicle has maintained roadworthiness, there are recurring concerns that warrant attention. The advisories on rear brake pad wear from 2025-10-03 and the near-term potential for further brake intervention indicate a gradual but consistent degradation in this area. The absence of failures in the intervening years suggests that the owner has likely addressed these issues promptly, but the persistent advisory highlights the need for proactive monitoring rather than reactive correction. This trend does not indicate an overall deterioration in the vehicle’s structural or mechanical integrity but underscores the importance of keeping an eye on consumable components like brake pads, which are critical for safety and performance. The recorded mileage of 115,869 miles for a vehicle of this age—approximately 12,874 miles per year—is notably high, particularly when compared to typical usage patterns for similar models. High mileage often correlates with increased wear on suspension components, brake systems, drivetrain elements, and internal engine parts, as these systems are subjected to greater stress over time. The absence of significant service intervals or long periods of inactivity suggests that the vehicle has been driven frequently, which can accelerate the consumption of fluids, the degradation of seals, and the fatigue of flexible components such as suspension bushes and exhaust hoses. Additionally, prolonged exposure to moisture or standing in damp conditions may exacerbate corrosion risks, particularly in the brake system, exhaust manifold, and undercarriage, where rust can compromise structural integrity or lead to premature failure of critical components. Given the recurring advisory on rear brake pad wear, the prospective buyer should conduct a thorough inspection of the braking system, focusing on the rear brake pads, discs, and calipers. Visually inspect the pads for uniform thickness and signs of glazing or uneven wear, which could indicate brake rotor warping or hydraulic issues. Listen for any unusual noises during braking, such as grinding or squeaking, which may signal impending pad failure or warped discs. The calipers should be checked for binding or excessive play, which could suggest hydraulic failure or seized components. On a test drive, apply the brakes progressively to assess pedal feel—ensure there is firm resistance without excessive sponginess or softness, which could indicate fluid degradation or air in the system. If the pads are indeed thin, consider replacing them promptly, as prolonged use with worn pads can lead to excessive heat buildup, reduced braking efficiency, and potential damage to the rotors. Beyond the brake system, the buyer should also prioritise a comprehensive inspection of the suspension and undercarriage due to the high mileage. Check the condition of the suspension bushes, coil springs, and shock absorbers for signs of wear, such as excessive play, cracks, or oil leaks around the strut mounts. Listen for clunking noises during cornering or over bumps, which may indicate worn suspension components or misaligned wheels. Inspect the tyres for uneven wear patterns, which could signal alignment issues or suspension problems, and verify that the tread depth meets legal requirements. The offside front tyre noted in the 2022 MOT advisory should be closely examined for damage, such as cuts, bulges, or cracks, which could compromise tyre integrity and safety. Additionally, the vehicle’s exhaust system should be inspected for leaks or corrosion, as high mileage increases the risk of exhaust manifold or catalytic converter failure. Finally, consider a check of the 12V battery and electrical system, as prolonged use can lead to degraded battery health or issues with starter motors or alternators, which are common failure points in high-mileage vehicles.