Refrigerant Circuit, Filling With Other Refrigerants
WARNING: This page is about a different car, the 2021 Audi S4 and 2021 Audi A4 Quattro. 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.
NOTE:
The refrigerant R134a my not be filled in vehicles which were place on the market with Refrigerant R1234yf according to the current legal situation.