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:
Contaminants Removed from Refrigerant Circuit
The reservoir/receiver/dryer or dryer bag/cartridge should
not be replaced under the following conditions.
After an accident when there is no damage on the
reservoir/receiver/dryer.
The repair was done quickl ...
Front view
Fig. 2 Overview of the front of the
vehicle
Key for :
Rain/light sensor on the mirror base
Windscreen
Windscreen wiper
Bonnet
Bonnet release lever
Headlights
Headlight washer system
Mounting for the front towing eye behind
a cover
Front number plate holder
F ...
Wheel bolts
Fig. 166 Changing a wheel:
loosening the wheel bolts
Fig. 167 Changing a wheel:
anti-theft bolt and adapter
First read and observe the introductory
information and safety warnings
Only the spanner delivered with the vehicle should be used to loosen the
wheel bolts.
Only loosen the whee ...
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