Genuine OEM Audi Activated Charcoal Canister Valve, part number 079133240BD. This valve is a critical component in the evaporative emissions system, designed to precisely control the flow of fuel vapors. It ensures efficient capture and processing of emissions, preventing their release into the atmosphere. The assembly weighs approximately 0.31 kg and measures 0.43m in length. Choosing a genuine OEM valve guarantees correct calibration and integration with the vehicle's complex emissions control system, maintaining factory performance and compliance.