Genuine OEM Audi Coolant Hose with Quick Release Coupling, part number 5QF122051S. This hose assembly is crucial for transporting coolant throughout the engine cooling system, featuring integrated quick-release couplings for efficient installation and maintenance. Weighing 1.123 kg, genuine OEM coolant hoses are manufactured from specific rubber compounds to resist degradation from heat and coolant chemicals, ensuring leak-free performance and preventing engine overheating.