VW Polo manuals

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.
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:

Tire Pressure Monitoring Sensor without Metal Valve, Removing and Installing, Service Version
Special tools and workshop equipment required Torque Wrench -VAG1410- Perform the Following: Removing –  Remove the tire from the disc wheel. Refer to ͛ ...

Heel and Toe Wear
Heel-and-toe wear is step-like wear of individual tread blocks, due to which an increased rolling noise can develop. The heel-and-toe wear is caused by the uneven distortion of the tread blocks in the contact patch. Heel-and-toe wear appears in more extr ...

Introduction
This chapter contains information on the following subjects:  → Socket in the vehicle Electrical equipment can be connected to the socket in the vehicle. The devices connected must be in good condition and fault-free. Additional information and warnings: Cigarette lighter Acce ...

© 2016-2021 Copyright www.vwpolo.net