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:
Frequently asked questions
If you suspect that there is a fault in the vehicle or if your vehicle has
been damaged, read and observe the following information before
contacting a Volkswagen dealership or qualified workshop. You may also find
useful information in the index under the headings Things to note or Checklist. ...
Opening and closing the bonnet
Fig. 134 A: release lever in the footwell
on the driver side. B: release lever on the bonnet
Fig. 135 C: holder for the bonnet stay
in the lock carrier. D: bonnet secured with the bonnet stay
First read and observe the introductory information
and safety warningsOpening the bonnet
Ensu ...
Refrigerant Oil
Refrigerant oil mixes with the refrigerant (about 20 - 40%,
depending on compressor type and amount of refrigerant) and
circulates constantly in the system, lubricating the moving
parts.
Special synthetic refrigerant oils, for example,
...
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