Genuine OEM Audi Engine Oil Separator, part number 079103464D. This crucial component is responsible for separating oil vapor from the crankcase ventilation gases before they are recirculated into the engine's intake system. It helps prevent oil consumption and keeps the intake system clean. Typically located as part of the PCV (Positive Crankcase Ventilation) system, this plastic module weighs 0.344 kg and measures 0.195m in length. Using a genuine OEM oil separator ensures proper filtration efficiency, correct pressure regulation, and resistance to oil and heat, which are vital for engine health and emissions compliance.