Genuine OEM Audi A/C Refrigerant Line, part number 1EA816527. This line is a critical component in the air conditioning system, designed to transport refrigerant between various components to facilitate the cooling process. It is located within the air conditioning assembly, connecting specific components as shown in the diagram. The part weighs approximately 0.078 kg. Using a genuine OEM refrigerant line ensures correct routing geometry, material compatibility with refrigerants, and robust connections to prevent leaks and maintain system integrity.