VW Polo manuals

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:

Unlocking the selector lever lock manually
Fig. 159 Removing the cover of the gearshift gate (left-hand drive) The controls are mirrored in right-hand drive vehicles Fig. 160 Unlocking the selector lever lock manually First read and observe the introductory information and safety warnings If the power fails in the vehicle (for ...

Positive and earth jump lead connection points
Fig. 190 In the engine compartment: jump lead connection point, positive ⊕ First read and observe the introductory information and safety warnings The positive jump lead connection point is in the engine compartment. In order to establish a suitable earth connection, screw towing eye into ...

Trailer Socket
Connect the trailer socket to the vehicle electrical system of the vehicle pulling the trailer according to the manufacturer instructions. Refer to the applicable wiring diagrams or manufacturer installation instructions when installing ...

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