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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.
   
Critical Point
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 ...

Refrigerant R134a Characteristics
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Other materials:

Side airbags
Fig. 59 On left-hand side of vehicle: deployment zone of the side airbag (variant A). On the side of the front seat: location and deployment range of the side airbag (variant B) First read and observe the introductory information and safety warnings The side airbags are located in the outer ...

First aid kit and warning triangle
Fig. 153 In the luggage compartment: holder for the first aid kit Fig. 154 In the luggage compartment. A: Warning triangle under the loading edge, B: Warning triangle in the vehicle tools First read and observe the introductory information and safety warnings First aid kit A first-ai ...

Increasing Temperature Due To Low Tire Pressure
The diagram shows the temperature behavior of a tire at speed of 180 km/h (111.84 mph). A -  Normal range: when maintaining the specified tire pressure, the temperature remains stable. B -  ...

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