Genuine OEM Audi Refrigerant Pipe, part number 5WA816721E. This pipe is a component of the air conditioning system, responsible for transporting refrigerant between system components. It is located in the engine bay, connecting to the A/C compressor and condenser. Constructed from high-quality materials to withstand system pressures and temperatures. Genuine OEM parts are manufactured to precise specifications for optimal performance and durability.