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:

Notes on repairs to airbag and belt tensioner wiring
In addition to the general notes on repairs to wiring harnesses, the following instructions must be observed on how to repair wiring in airbag and belt tensioner systems:   WARNING Airbag a ...

Radar sensor
Fig. 174 In the front bumper: radar sensor First read and observe the introductory information and safety warnings A radar sensor is fitted to the front bumper to monitor the traffic situation  . Vehicles travelling ahead can thus be detected up to a distance of approximately 120 m. T ...

Removing and installing control unit and hydraulic unit, LHD vehicles, four-wheel drive, diesel engine
Special tools and workshop equipment required Torque wrench -V.A.G 1331- Torque wrench -V.A.G 1410- Brake pedal depressor -V.A.G 1869/2-         Sealing plugs, assemb ...

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