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 ...
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Pedals
Fig. 108 Pedals in vehicles with a manual
gearbox: ① accelerator, ② brake pedal, ③ clutch pedal
Fig. 109 Pedals in vehicles with an automatic
gearbox: ① accelerator, ② brake pedal
First read and observe the introductory information
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Snow Chains
Snow Chins, Assembly and Replacing
Snow chains may be mounted only on the drive wheels.
If the vehicle has AWD, then snow chains may be used on the
front wheels only.
Snow chains are not possible with all wheel/tire
com ...
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