VW Polo manuals

Volkswagen Polo Service & Repair Manual: Refrigerant Circuit Connections with Valve for Switches

  Note
For switching pressures, removing and installing switches and switch arrangement and version, see vehicle-specific refrigerant circuit.
Refer to → Rep. Gr.87.
  WARNING
There is a danger of ice-up.
Refrigerant will leak out if refrigerant circuit is not discharged.
Refrigerant must be extracted before removing valve -C-. If refrigerant circuit is not opened within 10 minutes of extraction, pressure may form in refrigerant circuit due to evaporation. Extract the refrigerant once more.
Different threads for switch on high pressure and low pressure sides.
   
Only valves and o-rings that are resistant to refrigerant R134a and refrigerant oil must be installed.
A -  Connection (soldered in)
B -  O-Ring
C -  Valve (with o-ring)
 

Refrigerant Circuit Connections with Valve for Switches

A/C Refrigerant Low Pressure Switch -F73
  Note For switching pressures, removing and installing switches and switch arrangement and version, see vehicle-specific refrigerant circuit. ...

A/C Pressure Switch -F129
  Note For switching pressures, removing and installing switches and switch arrangement and version, see vehicle-specific refrigerant circuit. ...

Other materials:

Tires, Dismounting, Wheels without and with Tire Pressure Monitoring System
If equipped check the tire pressure monitoring sensor with the vehicle diagnostic tester and if necessary replace.   Note When cleaning disc wheel (rim), the tire pressure monitoring sensor (if equipped) must not come into c ...

Tires with Rim Protector
The tire industry produces tires with rim protector for light alloy wheels (rim protector). The rim protector prevents damage to the light alloy wheels caused by contact with curbs. Using tires with rim protector on steel wheels with wheel ...

Physical Principles
The four known states of water also apply to air conditioning system refrigerants. 1 -  gaseous (invisible) 2 -  vapor 3 -  fluid 4&nbs ...

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