Volkswagen Polo Service & Repair Manual: 6-Pin Universal Oxygen Sensor, Removing and Installing
 Note
| Use the faulty sensor as a guide for installing all of the
accompanying attachments, cable ties or marking bands. |
| Do not crimp or cut the wires otherwise the functionality of
the heated oxygen sensor (HO2S) will be diminished. |
| – |
Remove the old heated oxygen sensor (HO2S). |
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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-. |
| – |
Install the new oxygen sensor in the vehicle. |
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Note
Do not repair the heated oxygen sensor wires. Repairing may
result in malfunctions.
Use the faulty sensor as a guide ...
Note
In addition to using the part number, the protective pipe
can also be used for identification.
Version D1, 6 openings, 3.5 mm eac ...
Other materials:
Tires, Aging
Even tires that look in good shape, new or hardly use and
have sufficient tread depth and that are older than 6 years, can
age caused by moisture and winter conditions.
Tire test show that through continual development, new
rubber ...
Test Requirements
Note
The A/C system is functioning correctly when the air flowing
from the instrument panel vents has a temperature of 70C
or lower.
Setting on Climatronic “LO”.
Setting on A/C system ...
Refrigerant Circuit with Restrictor and Reservoir
1 -
A/C Compressor
2 -
Condenser
3 -
Restrictor
4 -
Evaporator
5 -
Reservoir with dryer bag
...
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4-Pin Heated Oxygen Sensor (HO2S), Removing and Installing
Oxygen Sensor Unit Protective Pipes