Volkswagen Polo Service & Repair Manual: Oxygen Sensor Unit Protective Pipes
 Note
| In addition to using the part number, the protective pipe
can also be used for identification. |
| Version D1, 6 openings, 3.5 mm each |
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| Only used with the 4-pin oxygen sensor |
| Version D2, 6 openings, 2 mm each |
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| Used with 4-pin and 6-pin universal oxygen sensors. |
| Version D4, 12 openings, 1.4 mm each |
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| Used with 4-pin and 6-pin universal oxygen sensors. |
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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 ...
Special tools and workshop equipment
required
Torque Wrench 1331 5-50Nm -VAG1331-
...
Other materials:
Critical Point
Vehicle air conditioning systems make use of the
vaporization and condensation process. In this case, one works
with a substance which boils easily, designated as refrigerant.
The refrigerant employed is tetrafluoroethane R134a, which
bo ...
Cracking
Cracking is the term for shallow cracks in the sidewall of
the tire.
They run starting from the bulge in the direction of the
tire shoulder. See Illustration for the mentioned components.
Refer to
→ Fig. „“Components ...
Charge Factor
A vessel must have space for vapor as well as liquid. As the
temperature rises, the liquid expands. The space filled with
vapor decreases. At a certain point, there will only be liquid
in the vessel. Beyond this, even a slight increase in
temperature cau ...
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6-Pin Universal Oxygen Sensor, Removing and Installing
Special Tools