Volkswagen Polo Service & Repair Manual: A/C Pressure Switch -F129
 Note
| For switching pressures, removing and installing switches
and switch arrangement and version, see vehicle-specific
refrigerant circuit. |
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| This pressure switch has 3 functions: |
| 1. Switches the coolant fan to the next higher level when
the pressure in the refrigerant circuit increases (approximately
16 bar (232 psi)). |
| 2. Switches off A/C system if pressure is excessive
(approximately 32 bar (464 psi)), for example. because of
insufficient engine cooling. |
| 3. Switches off A/C system if pressure is insufficient
(approximately 2 bar (29 psi)), for example. loss of
refrigerant. |
Note
| A/C Pressure Switch -F129- replaces the A/C Refrigerant High
Pressure Switch -F23-, A/C Refrigerant Low Pressure Switch -F73-
and the Magnetic Clutch High Pressure Switch -F118-. |
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Note
For switching pressures, removing and installing switches
and switch arrangement and version, see vehicle-specific
refrigerant circuit.
...
Note
For switching pressures, removing and installing switches
and switch arrangement and version, see vehicle-specific
refrigerant circuit.
...
Other materials:
Replacing Reservoir, No Contaminants, No Loss of Refrigerant
Discharge the refrigerant circuit.
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Replace the restrictor depending on the vehicle.
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Remove receiver or accumulator.
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Remove dirt from receiver or res ...
Connecting Service Station
Turn off the ignition.
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Connect the A/C service station to the power supply.
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Connect quick-release coupling adapter to charging hoses of
service station (handwheels not screwed in/ha ...
Introduction
This chapter contains information on the following subjects:
→ Seat covers
→ Cleaning cloth seat covers, fabric trim and Alcantara upholstery
→ Cleaning and caring for natural leather covers
→ Cleaning leatherette upholstery
→ Cleaning stowage compart ...
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Refrigerant Circuit Connections with Valve for Switches
High Pressure Sensor -G65