Genuine OEM Volkswagen Coolant Hose, part number 5C0122157Q. This hose transports coolant between engine components to regulate temperature. It is located in the engine bay and connects various parts of the cooling system. Features a quick-release mechanism for easier installation or removal. Genuine OEM hoses are constructed with specific rubber compounds and reinforcement to withstand extreme temperatures and pressures, ensuring a long service life and preventing leaks.