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:
Insulating glass windscreen
Fig. 71 Metal-coated windscreen for infrared
reflection with communication window (blue area)
First read and observe the introductory information
and safety warnings
Insulating glass windscreens have a coating which reflects infrared radiation.
There is a non-coated area above the interior ...
Adjusting the head restraints
Fig. 39 Adjusting front head restraint
Fig. 40 Adjusting rear head restraint
First read and observe the introductory information
and safety warnings
Every seat is fitted with a head restraint. The centre rear head restraint is
designed solely for use with the centre rear seat. This head r ...
Indicator lamps
Fig. 55 In the upper section of the centre
console: indicator lamp for disabled front passenger front airbag
First read and observe the introductory information
and safety warnings
Lit up
Location
Possible cause
Solution
Instrument c ...
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