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:

Battery Charger -VAS5900- Device Description
  WARNING Risk of injury. Follow all Warnings and Safety Precautions. Refer to → Chapter „Warnings and Safety Precautions“.   WARNING ...

Reservoir
  Caution Non-approved tools or materials such as leak sealing additives can cause damage or malfunctions in the system. Only use tools and materials approved by the manufactu ...

Checking the coolant level and refilling coolant
Fig. 139 In the engine compartment: mark on the coolant expansion tank Fig. 140 In the engine compartment: coolant expansion tank cap First read and observe the introductory information and safety warningsThe warning lamp for the engine coolant will light up if the engine coolant level i ...