Genuine OEM Audi Heat Exchanger Refrigerant Line, part number 4M2816744. This component is crucial for transferring refrigerant between various parts of the vehicle's air conditioning system, facilitating heat exchange for effective cooling. It connects directly to the heat exchanger assembly. Weighing 0.126 kg, this line is engineered for precise routing and pressure integrity. Opting for a genuine OEM refrigerant line guarantees correct material composition, leak-free connections, and resistance to system pressures and temperatures, preventing costly refrigerant loss.