Genuine OEM Audi Engine Breather Line Assembly, part number 0GC301472D. This component is vital for the engine's crankcase ventilation system, allowing the engine to safely vent harmful crankcase gases and prevent pressure buildup. It typically connects to the engine block and intake system. The assembly consists of a durable corrugated hose and a plastic reservoir, likely an oil separator or catch can. Choosing a genuine OEM breather line ensures correct routing geometry, material resistance to oil and heat, and proper function for emissions compliance and engine longevity.

Catalogue entry: PIPE.