Amarok 2011 ➤ , Beetle 2012 ➤ , Bora 1999 ➤ , CC 2010 ➤ , CC 2012 ➤ , ...
Air conditioning system with refrigerant R134a - Edition 10.2014
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Reference sources for technical rules and safety at work / acci‐
dent prevention for the Federal Republic of Germany
Sources in other countries may be obtained from the responsible
authorities
3.3
Converting R12 refrigerant circuits to
R134a refrigerant circuits and repairing
them (retrofitting)
Note
♦ The laws and regulations listed below are valid in the Federal
Republic of Germany. Other or additional laws and regulations
may apply in other countries.
♦ Sources in other countries may be obtained from the respon‐
sible authorities.
♦ Due to the environmental situation and the consequent legis‐
lation, refrigerant R12 is currently neither in production nor
available. Refrigerant R134a was developed as a replacement
for R12.
♦ However, air conditioning systems developed and designed
for refrigerant R12 cannot simply be charged with refrigerant
R134a. To ensure trouble-free operation of the air conditioning
system following a retrofit, various components of the refrig‐
erant circuit must be replaced.
♦ An exact description of the procedure for conversion and in‐
structions for repair of converted refrigerant circuits can be
found in the ⇒ Repair manual for air conditioning systems with
refrigerant R12 parts 2 and 3 . This workshop manual is only
available as a hard copy.
3.4
Maintaining records on refrigerant
Note
♦ The laws and regulations listed below are valid in the Federal
Republic of Germany. Other or additional laws and regulations
may apply in other countries.
♦ Sources in other countries may be obtained from the respon‐
sible authorities.
The quantities used during operation and maintenance work
should be documented (see Refrigerant Logbook, ⇒ Volkswagen
ServiceNet, Environmental Protection; Service handbook; Emis‐
sion protection; Air contaminating substances, refrigerant for ve‐
hicle air conditioning systems ) or proof of use document which
must be available for presentation to the responsible authorities
upon request. A record sheet need no longer be kept within the
EU due to respective European parliament legislation from 2005.
Other legislation may apply in countries not belonging to the EU.
3. Statutory texts and instructions
45
English 
