What causes the failure of BMW N55 fuel injectors?

[DelFaith]

The causes of BMW N55 fuel injector failure are injector clogging, increased engine carbon deposits, and reduced power. Injector clogging: This occurs when carbon deposits from the engine accumulate on the injectors or when impurities in the fuel block the injector pathways. Gasoline inherently contains gums and impurities, or dust and particles introduced during storage and transportation, which gradually form sludge-like deposits in the fuel tank and fuel lines over time. Severe carbon buildup: Poor fuel quality can cause the injectors to malfunction, leading to severe carbon buildup in the cylinders, accelerated wear of the cylinder walls and piston rings, unstable idling, increased fuel consumption, poor acceleration, difficulty starting, and excessive emissions. In severe cases, the injectors may become completely blocked, damaging the engine. Reduced power performance: Clogging of the injector needle valve and valve orifice affects the performance of the precision components in the electronic injection system, resulting in decreased power output.