Genuine OEM Audi Engine Crankcase Breather Vent, part number 038103493AC. This pipe is an integral part of the engine's crankcase ventilation system, designed to allow harmful crankcase gases to escape and be recirculated or filtered. Weighing 0.0305 kg, it is constructed from durable, oil-resistant materials to withstand the harsh engine environment. Using a genuine OEM breather vent ensures the correct flow characteristics and material integrity, which are essential for maintaining proper engine pressure, preventing oil leaks, and ensuring efficient emissions control.