Genuine OEM Audi Coolant Hose with Coupling, part number 5QA122157A. This hose is responsible for transferring coolant between various engine components, maintaining optimal operating temperatures. It is located within the engine cooling system. Weighing 0.1728 kg, it is constructed from heat-resistant rubber with integrated couplings for a secure fit. Using a genuine OEM coolant hose ensures correct routing, pressure resistance, and material compatibility, preventing leaks and overheating.