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:

Removing and installing earth wire with battery monitor control unit -J367-, vehicles with high-voltage system
Special tools and workshop equipment required     Torque wrench -V.A.G 1783- Removing –  Switch off ignition. –  ...

Removing and installing onboard supply control unit -J519-, RHD vehicles
  Note When renewing the control unit, select Renew function for the respective control unit in Guided fault finding or Guided functions mode → Vehicle diagnostic tester. Removing ...

Removing and installing roof spoiler
  Removing       Note The side spoiler remains installed. –  Remove rear lid trim → General body repairs, interior; Rep. gr.70. –&nb ...

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