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:

Diagonal washout
Diagonal washout on a tyre Diagonal washout runs at an angle of approx. 45° to the direction of rotation. It usually occurs at one point only, but can also occur at several points around the circumference of the tyre. ...

Removing and installing front entry light -W31-/-W32-
  Caution Danger of damage to component surfaces. When using leverage tools, mask visible areas of the component with commercially available adhesive tape. ...

Notes concerning odours in air conditioned vehicles
If the evaporator emits unpleasant odours, clean the evaporator. Volkswagen has tested and approved the ultrasound A/C cleaner -VAS 6189A- as well as the suction feed spray-gun -V.A.G 1538- with the appropriate spray probe. ...

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