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:
Absorbent glass mat battery
Maintenance-free battery with a contained electrolyte and no
colour indicator
Lead-acid battery where the electrolyte is contained within
a microscopic glass mat (AGM). The battery is sealed and fitted
with valves.
...
Assembly overview - subframe
1 -
Anti-roll bar with rubber bush
Removing and installing
→ Chapter
2 -
Nut
When tightening, counterhold on multipoint socket of joint stub.
Renew after removing
...
Fitting wheel, fitting instructions for Volkswagen
Vehicles with tyre pressure sensor
If the wheels are changed (e.g. switch from summer to winter
tyres), the wheel electronics transmit data as soon as the speed
of the new wheels exceeds 25 km/h. The new wheel electronics' ID
numbers are ...
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Low-pressure switch for air conditioning system -F73
Air conditioning system pressure switch -F129