Genuine OEM Volkswagen Activated Carbon Tank, part number 3C0201801E. This crucial component stores fuel vapors from the fuel tank, preventing their release into the atmosphere and reducing harmful emissions. It is an integral part of the evaporative emissions control system. The tank has dimensions of 0.34m in length, 0.15m in width, and 0.08m in height. Using a genuine OEM activated carbon tank ensures the correct adsorption capacity and flow characteristics, maintaining optimal emissions control and preventing system fault codes.