Volkswagen Polo Service & Repair Manual: Refrigerant Circuit Repair Information
WARNING
| When performing work on refrigerant circuit, observe
all generally applicable safety precautions and pressure
vessel regulations. |
|
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
manufacturer. |
| The warranty is voided if non-approved tools or
materials are used. |
|
| Special tools and accessories: |
| The performance of proper workmanlike repairs on an air
conditioning system: |
| Requires the use of special tools and materials as listed
in. Refer to
→ Chapter „Special Tools“. |
| Requires compliance with the basic instructions for use of
leak detectors. Refer to
→ Chapter „Refrigerant Circuit, Tracing Leaks, with Electronic
Leak Detector -VAG1796-“. |
| Requires expert knowledge. |
 Note
| Releasing refrigerant into the environment is not permitted
(punishable by law). Refer to
→ Chapter „Laws and Regulations“. |
|
|
|
At this time, A/C service units for extracting, cleaning and
filling refrigerant for motor vehicle A/C systems are available
from various manufacturers.
...
Other materials:
Odor from Evaporator or Heat Exchanger?
Fishy smell
–
From leak at cooling system of engine or of A/C system
heater core.
Note
If the fishy smell gets weaker when the temperature is set
to “cold” and stronger when i ...
Refrigerant R134a Physical Data
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 ...
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
Only used with the 4-pin oxygen sen ...
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