Audi A8 1994 - 1.4 Refrigerant Circuit and Components

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1.2.4 Refrigerant Circuit, Converting R12 to
R134a and Servicing
Note
♦ For environmental reasons and on account of the correspond‐
ing legislation, refrigerant R12 can no longer be manufactured
or supplied. Refrigerant R134a has been developed as a re‐
placement for R12.
♦ Air conditioning systems developed and designed for refriger‐
ant 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 re‐
frigerant circuit must be replaced.
♦ A precise description of the conversion procedure and infor‐
mation 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).
1.2.5 Refrigerant, Keeping Records
The environmental statistics law requires records to be kept on
the use of refrigerants.
Consequently, motor vehicle workshops may well have to provide
the relevant local authorities with information on their use of re‐
frigerant. It is recommended to always keep a record sheet Audi
ServiceNet, HSO Environment.
Note
♦ It is recommended to keep a record sheet because the local
authorities can request information regarding refrigerant use
starting from a certain amount (currently starting with a use of
20 kg in a year).
♦ Other provisions may apply in countries that are not members
of the EU.
Audi 100 1991 ➤ , Audi 80 1992 ➤ , Audi A1 2011 ➤ , Audi A2 2001 ➤ , A ...
Refrigerant R134a Servicing - Edition 01.2011
1. General Information 17