Genuine OEM Audi Activated Charcoal Container, part number 8D0201801F. This essential component is part of the evaporative emissions control (EVAP) system, designed to capture and store fuel vapors from the fuel tank. By preventing these vapors from escaping into the atmosphere, it significantly reduces harmful emissions. The container is made from durable plastic and weighs approximately 2.12 kg, featuring multiple ports for hose connections. Using a genuine OEM activated charcoal container ensures the correct charcoal density and filtration capacity, maintaining the vehicle's emissions compliance and preventing issues like check engine lights or fuel system malfunctions.