Volkswagen Polo Service & Repair Manual: Refrigerant R134a Environmental Information
| 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
boils at -26.5 °C (-15.7 °F) at a vapor pressure of 1 bar (14.5
psi). |
| R134a is a fluorocarbon and contains no chlorine. |
| R134a has a shorter atmospheric life span than refrigerant
R12. |
| R134a does not damage the ozone layer. The ozone depletion
potential is zero. |
| The greenhouse potential of R134a (Global Warming Potential
= GWP) is approximately 1430 (the GWP of carbon dioxide is 1). |
| The global warming effect of R134a is ten times less than
that of refrigerant R12. |
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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 ref ...
Other materials:
Introduction
This chapter contains information on the following subjects:
→ Running-in
→ Accessories and parts
→ Service fluids and consumables
→ Repairs and technical modifications
→ Repairs and faults in the airbag system
→ Retrofitting two-way radios ...
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 au ...
Service interval display
First read and observe the introductory
information and safety warnings
The service display is shown on the instrument cluster or .
Service schedules at Volkswagen are divided into two categories, oil change
service and inspections. The service interval display provides information on
the n ...
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