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:
Switching the TCS on and off
Fig. 116 In the centre console: button
for switching the TCS on and off manually
First read and observe the introductory information
and safety warnings The electronic stability control (ESC) only
functions when the engine is running. It consists of ABS, EDL and TCS.
When the engine is r ...
Parking Aid Sensor, Painting
The following parameters must be met when painting to avoid
malfunctions in the parking aid sensor (parking aid system):
New Part, Painting
Maximum coat thickness 125 µm; the coat thickness must
always be measured ...
Controls for the heating and fresh air system
Fig. 127 In the centre console: rotary
controller of the heating and fresh air system with controls
First read and observe the introductory information
and safety warnings
Button, control
Additional information. Heating and fresh air system
...
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