Genuine OEM Audi PCV Breather Hose, part number 07K103213L. This hose is a critical component of the Positive Crankcase Ventilation (PCV) system, responsible for routing harmful crankcase gases back into the intake manifold for re-combustion. It is located within the engine bay, connecting the crankcase to the intake system. Weighing 0.106 kg, this hose assembly is designed for specific routing. Using a genuine OEM PCV breather hose ensures proper material resistance to oil and heat, precise routing geometry, and a leak-free connection, which are vital for emissions compliance and engine health.