What are the reasons for the Mercedes-Benz engine warning light to come on?

[CourtneyAnn]

When the engine is idling, the fuel injection time extends beyond 4.5%, and this condition is detected continuously for more than 10 minutes, along with two consecutive faulty driving cycles, the engine malfunction indicator light will be triggered to illuminate. Here is additional information: Engine malfunctions: Sensor issues, spark plug failure, ignition coil failure, fuel pump failure, charcoal canister failure, catalytic converter failure, fuel line blockage, etc., can all lead to poor combustion of the air-fuel mixture in the engine, causing the malfunction. Prompt inspection recommended: The appearance of a fault code simply suggests a prompt inspection is needed, and the vehicle can continue to be driven. The fault code itself does not directly indicate whether the issue is related to fuel or carbon buildup; rather, it reflects the difference between the engine's normal operating parameters and its actual operating conditions. If this difference exceeds the specified value, the engine light will illuminate.