Volkswagen Polo Service & Repair Manual: 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 for installing all of the
accompanying attachments, cable ties or marking bands. |
| If necessary, identify the heated oxygen sensor (HO2S) using
the protective tube. Refer to
→ Chapter „Oxygen Sensor Unit Protective Pipes“. |
| – |
Remove the faulty oxygen sensor. |
|
|
|
| – |
Lay both of the oxygen sensor next to each other so the
sensor housings are the same level. |
|
|
|
| – |
Tie the excess length of the sensor (approximately 50 to 250
mm) back so it is the same length as the faulty sensor and
secure it with cable ties -1-. |
| – |
Check if the oxygen sensor connector housing is compatible
with the vehicle electrical system side. |
| – |
If necessary, replace the vehicle electrical system
connector with the provided oxygen sensor connector housing.
Refer to
→ Chapter „Contact Housings and Connectors, Repairing“. |
Note
| Only replace the connector housing on older vehicles. The
connector housing is correct on new vehicles. |
| Check the pin assignment. The pins in the new connector
housing are color coded. |
| The packaging for the new heated oxygen sensor contains
additional information. |
| – |
Install the new oxygen sensor in the vehicle. |
|
|
 |
Note
Use the faulty sensor as a guide for installing all of the
accompanying attachments, cable ties or marking bands.
Do ...
Other materials:
A/C Service Station, Connecting for Measuring and Testing
Caution
If it is suspected that chemicals were added to the
refrigerant circuit to seal leaks, do not connect the
A/C service station and do not extract the refrigerant.
...
Introduction
This chapter contains information on the following subjects:
→ Ignition lock
→ Starting the engine
→ Stopping the engine
→ Electronic immobilizer
Notes in this chapter concerning the automatic gearbox are applicable
both for the automatic gearbo ...
Hill Hold Assist
First read and observe the introductory information
and safety warnings The Hill Hold Assist function actively holds
the vehicle when pulling away on an incline.
The Hill Hold Assist function is automatically activated if the following conditions
are met
Cond ...
© 2016-2025 Copyright www.vwpolo.net
6-Pin Universal Oxygen Sensor, Removing and Installing