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:
Ignition lock
Fig. 107 Positions of the vehicle key in
the ignition lock
First read and observe the introductory information
and safety warnings The steering lock can be activated when
there is no vehicle key in the ignition lock.
Vehicle key positions
Ignition switched off. The vehicle key ca ...
Indicator lamp
First read and observe the introductory information
and safety warnings
Lit up
Possible cause
Solution
Windscreen washer fluid level too low.
Fill up the washer fluid reservoir as soon as possible
.
Several warning and indicator la ...
Tire Sidewall Swelling
A swelling in the flank of the tire indicates that the
substructure of the carcass has been damaged.
Typical causes for such damage include, for example, driving
over curbs at a sharp angle.
...
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