Genuine OEM Audi Coolant Hose, part number 80A122055CQ. This hose is designed to carry coolant, playing a vital role in regulating engine temperature by connecting directly to the radiator within the engine cooling system. It has a weight of 0.533 kg and a length of 0.56 meters. Choosing a genuine OEM coolant hose ensures the correct routing geometry, material composition, and resistance to temperature and pressure fluctuations, preventing leaks and maintaining optimal engine performance.