Volkswagen Golf Service & Repair Manual: 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). |
| 2. Switches the air conditioning system off in the event of
excess pressure (approx. 32 bar) (e.g. because of lack of engine
cooling). |
| 3. Switches the air conditioning system off in the event of
insufficient pressure (approx. 2 bar) (e.g. because of loss of
refrigerant). |
 Note
| The air conditioning system pressure switch -F129- replaces
the high-pressure switch for air conditioning system -F23-, the
low-pressure switch for air conditioning system -F73- and the
high-pressure switch for magnetic clutch -F118-. |
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WARNING
Danger of freezing injuries.
If refrigerant circuit has not been evacuated,
refri ...
This high-pressure sender -G65- is fitted in place of the
air conditioning system pressure switch -F129-.
When voltage is applied to the high-pressur ...
Other materials:
Dismantling and assembling heater unit
It is not necessary to extract the refrigerant and to remove
or disassemble the expansion valve and the evaporator. Further
procedure is identical with procedure for vehicles with air
conditioning system
→ Chapter.
...
Classification of extraction and charging devices in groups
Group 3:
Portable extraction and charging devices linking the air
conditioning system to a fixed compressed gas container.
The fixed compressed gas container is charged with
refrigerant or refrigerant/oil mixture. The po ...
Adjusting glass panel
Special tools and workshop equipment
required
Height-adjustment of glass panel
Torque wrench -V.A.G 1783-
–
Loosen securing bolts for ...
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Connections to valves for switches in the refrigerant circuit
High-pressure sender -G65