Volkswagen Polo Service & Repair 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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Note
The laws and regulations listed below are applicable in
Germany. Different or additional laws and regulations may apply
in other countries.
...
Note
The laws and regulations listed below are applicable in
Germany. Different or additional laws and regulations may apply
in other countries.
...
Other materials:
Critical Point
Vehicle air conditioning systems make use of the
vaporization and condensation process. In this case, one works
with a substance which boils easily, designated as refrigerant.
The refrigerant employed is tetrafluoroethane R134a, which
bo ...
A/C System Operation
The temperature in the passenger compartment depends on the
amount of heat radiated through the windows and conducted by the
metal parts of the body. In hot weather it is possible to
achieve a more comfortable temperature for the passengers by
pumping of ...
Underseal
First read and observe the introductory information
and safety warningsThe underside of the vehicle is coated to protect it from
corrosion and damage. The protective coating on the underside of the vehicle could
be damaged when driving. Volkswagen therefore recommends that the protective coati ...
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Recycling and Disposal Regulations
Refrigerant, Keeping Records