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:

Refuelling autogas
Fig. 132 In the right-hand side of the vehicle at the rear: open tank flap with tank cap for gas filler neck ① and adapter ② First read and observe the introductory information and safety warnings Switch off the engine, ignition and mobile telephone before refuelling . Please re ...

Indicator lamp in the vehicle key
Fig. 20 Indicator lamp in the vehicle key First read and observe the introductory information and safety warnings If a button on the vehicle key is pressed briefly, the indicator lamp (arrow) flashes once. The lamp will flash several times if the button is pressed and held, e.g. convenien ...

Introduction
With the ignition switched on, the different display functions can be accessed via the menus. There are no buttons on the windscreen wiper lever in vehicles equipped with a multifunction steering wheel. The multifunction display is controlled using the buttons on the multifunction steering w ...