Genuine OEM Audi Vent Hose, part number 079103209CB. This hose is an essential component of the engine's ventilation system, providing a dedicated pathway for gases to be routed, often for emissions control or crankcase ventilation. It is typically located on the left side of the engine. Weighing 0.145 kg and measuring 0.245 m in length, this hose is designed for precise routing and connection. Using a genuine OEM vent hose ensures correct material composition, flexibility, and resistance to oil and heat for reliable, leak-free operation.