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:

Crimping Pliers - .35-2.5mm -VAS1978/1A
The Crimping Pliers - .35-2.5mm -VAS1978/1A- or the Wiring Harness Repair - Crimping Plier - Base Tool -VAS1978/1-2- together with the Wiring Harness Repair - Crimping Head - .35-2.5mm -VAS1978/1-1-, or the Wiring Harness Repair Set - Crimping Head - 4-6 ...

Sun visors
Fig. 70 Sun visor First read and observe the introductory information and safety warnings Various positions for the driver and front passenger sun visors: Folded down over the windscreen. Pulled out of the bracket and swung over towards the door . Vanity mirror light There is a v ...

Checking with Expansion Valve, Receiver/Dryer and A/C Compressor Regulator Valve -N280-, Externally Regulated A/C Compressor
Specified Values Note Connecting service station. Refer to → Chapter „Connecting Service Station“. Observe test requirements. Refer to → Chapter „P ...