Genuine OEM Audi Coolant Hose with Quick Release, part number 5Q0122051DE. This flexible hose is a critical component of the engine cooling system, designed to transfer hot coolant between various engine components. It features a quick-release connector for efficient installation and removal during maintenance. With a length of 0.55m and a weight of 0.468 kg, it is engineered for specific routing. Choosing a genuine OEM coolant hose ensures the correct material resistance to heat and pressure, precise internal diameter for optimal flow, and reliable quick-release mechanism, preventing leaks and maintaining cooling efficiency.