Genuine OEM Volkswagen Breather, part number 0C8301047E. This breather is a component of the transmission system, designed to allow for pressure equalization within the gearbox. It is identified as part number 1 in the diagram. Proper ventilation is crucial for the longevity and performance of the transmission. Manufactured to precise OEM standards, this breather ensures correct airflow and pressure regulation. Genuine OEM parts are vital for maintaining the internal health of the transmission.