A/C System Repair Information
WARNING: This page is about a different car, the 2024 Audi SQ7, 2024 Audi Q7, 2023 Audi SQ7, and 2023 Audi Q7. However, it is still accessible from the selected car via links, so may be relevant.
- A/C systems designed for refrigerant R12 are only to be filled with refrigerant R134a if certain requirements are fulfilled. Refer to Refer to REFRIGERANT CIRCUIT, CONVERTING R12 TO R134A AND SERVICING and service information: A/C System with R12 Parts 2 and 3. This service information is only available in hard copy.
- The refrigerant oils specifically developed for R134a and R12 refrigerant circuits are never to be mixed.
- A/C service stations that come in contact with refrigerant are only to be used for the intended refrigerant.
- Components of R134a refrigerant circuits can be identified by their markings, green labels or design (such as different threads) to prevent interchanging with components designed for refrigerant R12.
- An information label indicating the refrigerant used is provided in the engine compartment on the lock carrier or in the plenum chamber.
- Different refrigerants are never to be mixed.
NOTE:
Pay attention to the information in the chapter when working on the refrigerant circuit. Refer to "Refrigerant Circuit General Precautions". Refer to REFRIGERANT CIRCUIT GENERAL PRECAUTIONS .