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:

Electronic immobilizer
First read and observe the introductory information and safety warnings The immobilizer helps to prevent the engine from being started and driven with an unauthorised vehicle key. There is a chip in the key. It automatically deactivates the immobilizer when the vehicle key is inserted into ...

Service position for glove compartment lid
Moving to service position –  Open glove compartment lid -2-. –  Push limit stops -1- for glove compartment lid -2- upwards -arrows A-. –  At the same time, op ...

Removing and installing luggage compartment aerial for entry and start system -R137-
Special tools and workshop equipment required     Release lever -80 - 200- Removing –  Remove rear seat bench → General body repair ...

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