Refrigerant Circuit, Filling With Other Refrigerants
WARNING: This page is about a different car, the 2022 Audi S3, 2022 Audi RS 3, 2022 Audi A3 Quattro, and 2022 Audi A3. 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.