Refrigerant Circuit, Converting R12 To R134A
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.
CFC refrigerants are no longer used in the automotive industry.
Converting refrigerant circuits from R12 refrigerant to R134a refrigerant and servicing converted circuits
Refer to Service Information: Air Conditioner with Refrigerant R12 Parts 2 and 3 (This Service Information is only available in printed form).