Genuine OEM Audi Water Drain Valve, part number 4F0805271. This valve is designed to allow the controlled release of accumulated water from various vehicle compartments, preventing water buildup and potential damage. It is typically found in areas prone to water collection, such as the cowl, plenum chamber, or underbody. Constructed from durable rubber or plastic, it weighs approximately 0.018 kg. Using a genuine OEM drain valve ensures proper sealing and flow characteristics, preventing leaks and maintaining the vehicle's protection against moisture ingress.