Genuine OEM Volkswagen Activated Charcoal Container, part number 4M0201801A. This container filters volatile organic compounds (VOCs) from the fuel tank vapor before they are released into the atmosphere. It is part of the emissions system. The container has a weight of 2.263 kg and a length of 0.34 meters. Genuine OEM activated charcoal containers ensure effective filtration of fuel vapors, contributing to cleaner air and compliance with environmental regulations.