Genuine OEM Audi Engine Breather Line, part number 0P2103217A. This component is crucial for the engine's crankcase ventilation system, routing harmful crankcase gases back into the intake system for re-combustion. It is positioned within the engine bay, connecting to the turbocharger and other engine components. Weighing approximately 0.192 kg and measuring 0.327 m in length, this line is designed for precise fitment. Choosing a genuine OEM breather line ensures the correct routing geometry, material resistance to oil and heat, and proper sealing to prevent vacuum leaks and maintain engine efficiency.