Genuine OEM Audi Engine Breather Line, part number 0P2103211G. This line is an essential component of the engine's crankcase ventilation system, designed to route blow-by gases away from the crankcase. It connects directly to the turbocharger assembly, playing a role in maintaining optimal engine pressure and emissions control. Weighing 0.054 kg and measuring 0.15m in length, this line is engineered for precise fitment and durability. Using a genuine OEM breather line ensures correct material properties for resistance to oil and heat, accurate routing, and secure connections, preventing potential leaks or system blockages.