Volkswagen Polo Service & Repair Manual: A/C Pressure Switch -F129

Volkswagen Polo Service & Repair Manual / Refrrigerant R134a Servicing / Refrigerant Circuit General Information / Switches and Sensors on Refrigerant Circuit and Connections / A/C Pressure Switch -F129

Note

For switching pressures, removing and installing switches and switch arrangement and version, see vehicle-specific refrigerant circuit.

Refer to → Rep. Gr.87.

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-.

A/C Pressure Switch -F129

Refrigerant Circuit Connections with Valve for Switches

Note For switching pressures, removing and installing switches and switch arrangement and version, see vehicle-specific refrigerant circuit. ...

High Pressure Sensor -G65

Note For switching pressures, removing and installing switches and switch arrangement and version, see vehicle-specific refrigerant circuit. ...

Other materials:

Contacts in Contact Housing, Repairing
First, open or release if necessary the secondary lock of the contact housing. Refer to → Chapter „Contact Housings, Releasing and Disassembling“. – Release contact (primary ...

Tire Sealant, Disposal
Tire sealant or residue from it must not be mixed with other wastes/fluids Accumulating fluid residue from tire sealant must be collected and placed in a plastic container. The plastic containers can be sent for recycling together ...

Stowage compartments in the front centre console
Fig. 94 In the centre console: stowage compartment at the front Fig. 95 In the centre console: stowage compartment next to the handbrake lever First read and observe the introductory information and safety warnings There is an open stowage compartment with lighting in the front centre con ...