Genuine OEM Audi Engine Coolant Hose, part number 5Q0122073BS. This hose is designed to carry coolant between various components of the engine cooling system, playing a vital role in maintaining optimal engine operating temperature. It is positioned within the engine bay, connecting to the water pump/thermostat housing and other cooling pipes. Weighing 0.3893 kg and measuring 0.535m in length, this hose features a corrugated design for flexibility and durability. Using a genuine OEM coolant hose ensures the correct material composition, pressure resistance, and precise routing geometry for reliable, leak-free performance.