Genuine OEM Volkswagen Refrigerant Line, part number 7T1816741C. This line carries refrigerant within the vehicle's air conditioning system. It is located in the engine bay, as indicated by position 11 on the diagram. The line has a length of 1.16 m and a weight of 0.278 kg. Genuine OEM refrigerant lines are designed for specific pressure and temperature tolerances, ensuring the safe and efficient operation of the A/C system.