Genuine OEM Audi Crankcase Vent Tube, part number 079103217AM. This tube is a critical component of the engine's crankcase ventilation system, designed to safely route blow-by gases away from the crankcase. It helps maintain optimal engine pressure and prevents oil contamination. Made from durable, heat-resistant materials, it measures approximately 0.415 meters in length and weighs 0.076 kg. Genuine OEM tubes provide the correct routing geometry and material composition for effective and leak-free operation.