Genuine OEM Audi Crankcase Breather Hose, part number 078103235G. This hose assembly is designed to route crankcase gases for proper ventilation, preventing harmful pressure buildup and oil contamination within the engine. It is an integral component of the positive crankcase ventilation (PCV) system. Weighing 0.205 kg and measuring approximately 0.435 meters in length, this hose is constructed from durable materials to withstand oil and heat exposure. Using a genuine OEM hose ensures correct routing geometry, material resistance, and proper function of the PCV system.