Genuine OEM Audi Breather Hose, part number 06F103213M. This hose is a crucial component of the crankcase ventilation system, designed to allow excess pressure and unburnt gases to vent from the engine's crankcase. This process prevents harmful pressure buildup and helps manage emissions. Made from robust, oil-resistant rubber, a genuine OEM breather hose ensures a tight seal and withstands exposure to oil vapours and heat, preventing leaks and maintaining the integrity of the engine's ventilation system.