Volkswagen Polo Service & Repair Manual: Refrigerant R134a Environmental Information

Volkswagen Polo Service & Repair Manual / Refrrigerant R134a Servicing / A/C System, General Information / Refrigerant R134a / 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:

Removing and fitting head restraints
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 restraint should therefore not be installed in any of the other positions. Remov ...

Cleaning and caring for the deck stripes
First read and observe the introductory information and safety warningsDeck stripes are a design feature and are made up of soft polyvinyl chloride (PVC). In the areas of the vehicle where there are deck stripes, the underlying paint layer is protected from weather and environmental condition ...

Locking or unlocking the driver door manually
Fig. 155 Door handle on driver door with lock cylinder First read and observe the introductory information and safety warnings If locked manually, all doors are locked. If unlocked manually, only the driver door is unlocked. Observe information on the anti-theft alarm . Fold the key bi ...