Converting R12 Refrigerant Circuit to R134a Refrigerant Circuit and Servicing
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.
NOTE:
- For environmental reasons and on account of the corresponding legislation, refrigerant R12 can no longer be manufactured or supplied. Refrigerant R134a has been developed as a replacement for R12.
- Air conditioning systems developed and designed for refrigerant R12 cannot however simply be charged with refrigerant R134a. To ensure trouble-free operation of the air conditioning system even after conversion, various components of the refrigerant circuit must be replaced.
- A precise description of the conversion procedure and information on the servicing of converted refrigerant circuits can be found in → Repair Manual: Air conditioner with refrigerant R12 Parts 2 and 3. (This repair manual is only available in hard copy).