Genuine OEM Audi Coolant Hose with Quick Release Coupling, part number 3C0122051CB. This hose is an essential part of the engine cooling system, facilitating the transfer of coolant between various components. It features a quick-release coupling for convenient and secure connections, simplifying maintenance and installation. Located within the engine bay, it ensures efficient heat management. Made from durable, heat-resistant materials, this hose is designed to withstand the demanding conditions of the cooling system. Choosing a genuine OEM hose guarantees the correct coupling mechanism, precise routing, and material integrity for a reliable, leak-free performance.