2016 Mercedes-Benz C 2.1L Diesel · YF16 LSJ

The most recent MOT on 2025-11-12 shows a failure due to the Engine MIL (Malfunction Indicator Light) being inoperative or indicating a malfunction, as per 8.2.2.2 (g). This is a critical safety concern, as the MIL is designed to alert drivers to engine or emissions issues. A failure here suggests potential underlying problems with the vehicle’s diagnostic system or engine components, which could affect performance and compliance with emissions standards. A pass was recorded on the same date, but this appears to conflict with the failure entry. This inconsistency may indicate an error in the MOT records or a partial inspection. Regardless, the failure note alone raises significant red flags, as it points to a system that may not reliably warn the driver of engine faults. Looking at earlier MOTs, the vehicle had a failure in 2024-11-08 due to a damaged nearside front tyre and a worn suspension arm. These were addressed in the subsequent pass entry, but the 2025 failure suggests recurring issues. The suspension arm wear (5.3.4 (a) (i)) is a structural concern, as excessive wear can compromise handling and safety. The tyre damage (5.2.3 (d) (ii)) was likely a one-off, but repeated failures in critical systems like the engine and suspension indicate a pattern of emerging risks.