Genuine OEM Volkswagen HVAC Heating Coolant Hose, part number 5C0122157D. This hose is an integral part of the vehicle's heating and ventilation system, responsible for transporting hot coolant to the heater core to provide warmth to the cabin. It is situated within the engine bay, connecting to the HVAC system. With a length of 0.37 meters and weighing 0.539 kg, this hose is designed to withstand high temperatures and pressures. Using a genuine OEM hose ensures the correct material composition and precise fitment, preventing leaks and ensuring efficient cabin heating.