Genuine OEM Audi Activated Charcoal Container, part number 6R0201797. This crucial component of the evaporative emissions (EVAP) system stores fuel vapors from the fuel tank, preventing their release into the atmosphere. It contains activated charcoal that adsorbs these vapors until they can be purged into the engine for combustion. Constructed from durable plastic, it measures approximately 0.375 meters in length. Using a genuine OEM charcoal container ensures proper emissions control, maintains fuel system integrity, and helps the vehicle comply with environmental regulations.