2013 Mercedes-Benz C 2.1L Diesel · M28 MCN

The Mercedes-Benz C-Class in question presents a clean MOT history with no recorded defects across its five most recent tests, all conducted within the last three years. The latest assessment in October 2024 at 84,334 miles passed without any advisories or failures, indicating the vehicle met all DVSA roadworthiness criteria at that point. The absence of recurring issues or advisories suggests a stable maintenance trend, with no signs of worsening mechanical or structural problems. However, the two consecutive fails in October 2023 and 2024—both at nearly identical mileages (77,411 and 84,334)—are unusual, as they occurred without any defects being logged. This discrepancy raises questions about whether the failures were administrative or if minor, unrecorded issues prompted retesting. The mileage accumulation of roughly 6,487 miles per year aligns with typical usage for a vehicle of this age, though the gaps between tests reveal some irregularities. The 2022 test at 69,679 miles was followed by a 7,800-mile jump in just over a year, suggesting either a period of heavier use or delayed retesting. The subsequent tests in 2023 show mileage increases of around 7,000 miles within weeks, which is unusually rapid for a private vehicle and may imply the car was driven more aggressively or sat unused between tests before being pushed into service. The lack of mileage progression between the two 2024 tests (84,334 miles for both) further implies the second fail was likely a procedural retry rather than a response to wear. Given the absence of recorded defects, the buyer should prioritise a thorough inspection of components prone to silent degradation in Mercedes-Benz models of this age. Pay particular attention to the suspension—specifically the condition of coil springs, anti-roll bars, and bushings—since these often degrade without immediate MOT consequences but can compromise handling. The brake system, including caliper operation and disc thickness, should be checked, even though no binding or wear was logged; Mercedes’ electronic brake systems can mask early issues. Exhaust emissions and the integrity of the catalytic converter or DPF (if fitted) are also critical, as these can fail silently and trigger emissions-related advisories in later tests. Finally, inspect for any signs of structural corrosion, particularly around wheel arches, sills, and the underbody, as Mercedes’ aluminium-intensive construction can still suffer from hidden rust in high-stress areas. The clean MOT record is a positive indicator, but the unexplained fails and rapid mileage jumps in 2023–2024 warrant caution. A pre-purchase inspection by an independent Mercedes specialist, focusing on the areas mentioned, would be advisable to confirm the vehicle’s true condition beyond what the MOT captures.