Genuine OEM Audi Engine Pressure Control Valve, part number 07C103464G. This critical component manages pressure within the engine's crankcase, preventing excessive pressure buildup that can lead to oil leaks and seal damage. It plays a vital role in the positive crankcase ventilation (PCV) system, separating oil vapor from gases before they are recirculated or vented. This valve is typically located on the left side of the engine. Constructed from durable, heat-resistant plastic, it weighs approximately 0.475 kg. Using a genuine OEM valve ensures precise pressure regulation, proper material integrity, and long-term engine health.