Volkswagen Polo Service & Repair Manual: Heated Oxygen Sensor, Replacing

Protecting

  Caution Missing protection leads to the electrical system damage.   Note ...

4-Pin Heated Oxygen Sensor (HO2S), Removing and Installing

  Note Do not repair the heated oxygen sensor wires. Repairing may result in malfunctions. Use the faulty sensor as a guide ...

Other materials:

Refrigerant Circuit Pressures and Temperatures
  WARNING When performing work on refrigerant circuit, observe all generally applicable safety precautions and pressure vessel regulations. The pressures and temperatures in ...

Contact Release Tools
Various release tools are used to remove the different terminals from terminal housings without damage. A selection of release tools are a component of the Wiring Harness Repair Set -VAS1978- and the Wiring Harness Repair Set -VAS1978A-. ...

Vents
Fig. 128 In the dash panel: vents First read and observe the introductory information and safety warnings The vents   should be left open to ensure that the vehicle interior is sufficiently heated, ventilated and cooled. Turn the relevant thumb wheel (magnified view) in the required ...