Genuine OEM Volkswagen Battery Vent Hose, part number 3W0915531A. This hose is designed to safely expel harmful gases produced by the battery during charging, preventing their accumulation in the vehicle's interior or engine bay. It connects directly to the battery's vent port. Weighing only 0.006 kg and measuring 0.475 m in length, its corrugated design allows for flexible routing. Genuine OEM battery vent hoses ensure proper material compatibility with battery gases and precise fitment for safe and effective ventilation.