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“. |
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Remove the faulty oxygen sensor. |
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Lay both of the oxygen sensor next to each other so the
sensor housings are the same level. |
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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-. |
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Check if the oxygen sensor connector housing is compatible
with the vehicle electrical system side. |
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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. |
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Install the new oxygen sensor in the vehicle. |
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Note
Use the faulty sensor as a guide for installing all of the
accompanying attachments, cable ties or marking bands.
Do ...
Other materials:
Receiver/Dryer
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 ...
Sealing and inflating tyres
First read and observe the introductory
information and safety warnings
Sealing a tyre
Unscrew the cap from the tyre valve.
Use the valve core extractor to screw the valve core out of the tyre
valve. Place the core on a clean surface.
Shake the tyre filler bottle vigorously up ...
Rims
First read and observe the introductory information
and safety warningsThe design of the wheel bolts is matched to the rims.
If different rims are fitted, the correct wheel bolts with the right length and
correctly shaped bolt heads must be used. This ensures that wheels are fitted securely
...
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6-Pin Universal Oxygen Sensor, Removing and Installing