Genuine OEM Audi Transmission Vent Hose, part number 02E301472G. This hose is designed to vent pressure and gases from the transmission system, preventing pressure buildup that could damage seals or affect fluid dynamics. It connects to the top of the transmission housing, allowing for proper atmospheric equalization. Weighing only 0.026 kg and measuring 0.345 m in length, this genuine OEM hose ensures the correct routing geometry and material resistance to transmission fluids and temperatures, critical for maintaining transmission health and preventing costly repairs.