Genuine OEM Volkswagen Engine Crankcase Breather Hose, part number 06A103213BG. This hose is a crucial component of the engine's positive crankcase ventilation (PCV) system, designed to allow crankcase gases to escape and be recirculated or filtered. This process helps to relieve internal engine pressure, prevent oil leaks, and reduce harmful emissions. The hose is made from durable, heat-resistant rubber or plastic, featuring specific bends for precise routing within the engine bay, and weighs approximately 0.042 kg. Using a genuine OEM breather hose ensures correct material composition for resistance to oil and heat, precise routing geometry, and proper sealing to prevent vacuum leaks and maintain optimal engine performance.