2016 Mercedes-Benz C 2.1L Diesel · KY66 AEK

The vehicle’s most recent MOT history demonstrates a stable but concerning pattern, with a single failure in December 2025—despite no recorded defects—followed by an immediate retest that passed. This suggests a procedural anomaly rather than a mechanical issue, as no faults were logged across any of the five tests spanning nearly two years. The absence of advisories or recurring faults implies the vehicle has not experienced persistent failures in critical systems like suspension, brakes, or emissions. However, the failure itself, coupled with the retest, raises questions about whether the vehicle was driven between tests or if the failure was a false trigger, such as an intermittent sensor issue. Mileage progression indicates typical usage for a vehicle of this age, averaging around 8,700 miles annually, with no abrupt spikes or prolonged periods of inactivity. The gap between the 2024 and 2023 tests—covering roughly 12,000 miles in just three months—suggests consistent driving rather than neglect. There are no red flags in the mileage pattern, though the lack of intermediate tests between 2024 and 2025 means no intermediate maintenance records exist. This could mean either diligent servicing outside MOT requirements or a complete absence of regular upkeep. Given the clean MOT record, a buyer should prioritise a thorough inspection of high-wear components that aren’t covered by the MOT test. The suspension—particularly coil springs, bushes, and shock absorbers—should be checked for uneven wear or fluid leaks, as these are common issues in this mileage bracket. Brake components, including calipers, pads, and discs, warrant attention, especially if the vehicle was driven between the failed and passed tests in December 2025. Structural integrity, including underbody corrosion and subframe connections, should also be examined, as rust can develop silently over time. Finally, the exhaust system and emissions-related parts should be inspected for leaks or damage, as these are often overlooked but critical for both performance and legal compliance.