Genuine OEM Audi Oil Separator, part number 079103542E. This component plays a critical role in the positive crankcase ventilation (PCV) system by separating oil vapor from crankcase gases before they are recirculated into the engine's intake. This process helps to reduce oil consumption and prevent carbon buildup. Weighing 0.737 kg, it is designed for efficient separation. Choosing a genuine OEM oil separator ensures proper engine ventilation, maintains emissions compliance, and protects intake components from oil contamination.