Genuine OEM Audi air conditioning hose, part number 4F0260701N. This hose is a vital component of the climate control system, responsible for transporting refrigerant between the compressor and the condenser. It is located within the engine bay A/C circuit as shown in the diagram. Genuine OEM hoses are engineered with specific material compounds to resist refrigerant permeation and withstand high-pressure cycles, ensuring a leak-free seal and long-term system reliability.