Genuine OEM Audi Quick Release Coolant Hose, part number 5N0122157AJ. This flexible hose is designed to transfer coolant between engine components, allowing for easy connection and disconnection of coolant lines. It is an integral part of the engine's thermal management system. Weighing 0.226 kg, it measures approximately 0.455 m in length. Using a genuine OEM coolant hose ensures proper fit, material integrity, and resistance to temperature and pressure fluctuations for reliable cooling performance.