Refrigerant Circuits, Converting from R12 Refrigerant to R134a
WARNING: This page does not describe the selected car, but rather 17 other vehicles, including the 2009 Audi S4, 2009 Audi A4, 2008 Audi S4, 2008 Audi RS 4, and 2008 Audi A4. 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 to R134a and servicing converted circuits
→ Repair Manual: Air conditioner with refrigerant R12 Parts 2 and 3 (this Repair Manual is only available in printed form).