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:
Function and operation
Fig. 180 In the lower section of the centre
console: Driving Mode Selection button
First read and observe the introductory information
and safety warnings The driver can choose from up to 5 different driving
modes with a variety of characteristics:
Driving m ...
Checking maximum wheel lock
The maximum wheel lock is determined with the aid of the
wheel alignment computer.
–
When the values for the maximum wheel lock lie outside the
tolerances, then check following:
Are steering or suspen ...
Painting parking aid sensor
To avoid malfunctions in the parking aid sensor, always
observe the following when painting:
Painting new parts
Maximum layer thickness 125 µm; a measurement of layer depth
is absolutely essential following ...
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Connections to valves for switches in the refrigerant circuit
High-pressure sender -G65