Genuine OEM Audi Coolant Hose, part number 2E0122447. This hose is a vital part of the engine cooling system, responsible for circulating coolant between the radiator and the engine to regulate operating temperature. It is positioned to connect the lower section of the radiator to the engine. Measuring 0.785 meters in length, this hose weighs 0.139 kg. Using a genuine OEM coolant hose ensures the correct material composition for heat and pressure resistance, precise bends for proper routing, and durable connections to prevent leaks and maintain cooling efficiency.