Genuine OEM Volkswagen Rear Refrigerant Line, part number 7E1816733. This essential component is responsible for transporting high-pressure refrigerant between various parts of the air conditioning system, ensuring efficient cooling or heating of the cabin. It is positioned as part of the rearward routing of the HVAC system. Measuring approximately 1.85 meters in length and weighing 2.06 kg, this line is constructed to withstand high pressures and temperature fluctuations. Using a genuine OEM refrigerant line ensures proper sealing, resistance to corrosion, and correct routing geometry, preventing leaks and maintaining optimal AC system performance.