Genuine OEM Audi Battery Vent Hose, part number 4M0907272B. This hose is designed to provide critical ventilation for the vehicle's battery or power electronics module, allowing gases to escape and preventing pressure accumulation. It connects directly to the module, ensuring safe and efficient operation of the electrical system. Weighing 0.07 kg, this lightweight hose is engineered for specific routing and secure connections. Using a genuine OEM vent hose guarantees the correct material composition and precise fitment for reliable long-term performance and safety.