Volkswagen Touran Service Manual: Refrigerant Circuit, Converting R12 to R134a and Servicing
 Note
| The laws and regulations listed below are applicable in
Germany. Different or additional laws and regulations may apply
in other countries. |
| Addresses in other countries can be obtained from the
relevant authorities. |
| 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. |
| A/C 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. |
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Refrigerant, Keeping Records
Note
| The laws and regulations listed below are applicable in
Germany. Different or additional laws and regulations may apply
in other countries. |
| Addresses in other countries can be obtained from the
relevant authorities. |
| It is therefore recommended to keep a record of the
quantities used during operation and maintenance, so they can be
presented to the authorities upon request. A record sheet no
longer needs to be kept in the EU due to a provision by the
European Parliament in 2005. Other provisions may apply in
countries that are not members of the EU. |
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Note
The laws and regulations listed below are applicable in
Germany. Different or additional laws and regulations may apply
in other countries.
...
A/C System Repair Information
An A/C system made for refrigerant R12 must not be filled
with refrigerant R134a without making modifications to the
refrigerant circui ...
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Recycling and Disposal Regulations
Refrigerant Circuit