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) |
|
|
|
Function:
In the event of pressure loss in the refrigerant circuit,
switches the air conditioner compressor off (at approx. 2 bar).
...
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:
Technical data
General repair instructions
Repairing electrical wiring harnesses and connectors
→ Electrical System, General Information; Rep. gr.97
Releasing and dismantling connector housings
→ Electrical Sys ...
Removing and installing driver side footwell vents, RHD vehicles
Removing
Pyrotechnic components may trigger unintentionally.Risk of
injury.Discharge any static charge accumulated in your body by briefly
touching striker plate for door.
–
Remove driver side knee airbag
→ Genera ...
Assembly overview - coolant pump, thermostat
1 -
Thermostat housing
Removing and installing
→ Chapter
2 -
Thermostat
For small cooling circuit
Starts to open at approx. 105°C
Different versions. Refer to
...
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Low-pressure switch for air conditioning system -F73
Air conditioning system pressure switch -F129