Genuine OEM Volkswagen Oil Separator, part number 07C103464F. This part functions as a crucial component within the engine's crankcase ventilation system, responsible for separating oil mist and vapors from the blow-by gases before they are recirculated. Proper functioning is essential for maintaining engine oil levels, preventing sludge formation, and ensuring compliance with emissions standards. Genuine OEM oil separators are manufactured to exact specifications for optimal performance and longevity.