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:

Checking
–  Turn off the ignition. –  Connect pressure gauge battery (A/C service station). –  Take pressure gauge readings. There are two possible results A and B.   &nbs ...

Refrigerant Circuit with Expansion Valve and Evaporator
1 -  Evaporator 2 -  Expansion Valve 3 -  Valve for extracting, filling and measuring 4 -  Receiver/dryer with dryer bag/dryer cartridge ...

Battery Tester Charger Kit -GRX3000VAS- Troubleshooting
Sometimes the display shows the malfunction or the messages based on the condition. The following is a list of the most frequent displayed messages together with suggested solutions.   Note Refer to the Batt ...