VW Golf manuals

Volkswagen Golf Service & Repair Manual: Connections to valves for switches in the refrigerant circuit

  WARNING
Danger of freezing injuries.
If refrigerant circuit has not been evacuated, refrigerant will escape.
The refrigerant must be extracted before the valve -C- is removed. If the refrigerant circuit is not opened within 10 minutes after it has been evacuated, pressure may develop in coolant circuit due to re-evaporation. Extract refrigerant again.
The switches on the high-pressure and low-pressure sides have different threads.
   
Use only valves and O-rings that are resistant to refrigerant R134a and its associated refrigerant oils.
A -  Connection (soldered in)
B -  O-ring
C -  Valve (with O-ring)
 

Connections to valves for switches in the refrigerant circuit

Low-pressure switch for air conditioning system -F73
Function: In the event of pressure loss in the refrigerant circuit, switches the air conditioner compressor off (at approx. 2 bar). ...

Air conditioning system pressure switch -F129
This pressure switch has 3 functions: 1. Switches radiator fan to next higher speed when pressure increases in refrigerant circuit (approx. 16 bar). ...

Other materials:

Plug-in connectors
Separating plug-in connectors Special tools and workshop equipment required     Lever -T10468- Assignment of plug-in connectors   Note The pl ...

Removing and installing rear window
  Note   The removal of a bonded window is described using the Removal kit for flush bonded windows -V.A.G 1474 A-.   Alternatively, you can also use the cutting tool for bonded windows -VAS 6452-. ...

Side view
Fig. 1 Overview of the driver side Key for  : Roof aerial   Tank flap   Exterior door release lever   Exterior mirrors   Additional turn signal   Surround lighting   Jacking points   ...

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