Genuine OEM Audi Engine Oil Separator, part number 05E103495AH. This critical component is designed to separate oil vapor from crankcase gases before they are recirculated into the engine's intake system, preventing oil sludge buildup and maintaining engine efficiency. It is typically mounted on or near the engine as part of the PCV system. Constructed from durable, heat-resistant plastic, this separator weighs approximately 0.482 kg. Choosing a genuine OEM oil separator ensures precise filtration efficiency, correct pressure regulation, and long-term durability, which are vital for maintaining engine performance and meeting emissions standards.