Genuine OEM Audi Vacuum Hose, part number 4M0611931BG. This hose is a vital component for transmitting vacuum pressure, primarily to the brake booster, which assists in reducing the effort required to apply the brakes. It ensures proper operation of various vacuum-dependent systems within the vehicle. Weighing 0.231 kg and measuring 0.57 meters in length, this hose is designed for precise routing and secure connections. Opting for a genuine OEM vacuum hose guarantees the correct material flexibility, heat resistance, and sealing integrity, preventing vacuum leaks that can impair engine performance and braking efficiency.