Refrigerant Circuit, Filling With Other Refrigerants
WARNING: This page is about a different car, the 2023 Audi SQ8, 2023 Audi RS Q8, and 2023 Audi Q8. However, it is still accessible from the selected car via links, so may be relevant.
A/C systems which were developed and designed for Refrigerant R1234yf, must not be filled with other refrigerant such as R134a.