Volkswagen Polo Service & Repair Manual: Comfort
| Being comfortable while driving leads to better
concentration and safe driving. Air conditioning makes drivers
and passengers more comfortable when temperatures or humidity
are high. While opening the windows or sunroof or increasing the
air flow can make vehicle occupants more comfortable, it also
exposes them to more noise, draughts, exhaust, pollen and dust. |
| A well-designed heating and air conditioning system can
increase comfort by controlling the temperature, humidity and
air flow inside the vehicle. This is done both when the vehicle
is moving and when it is stationary. |
| Air conditioning also offers these advantages: |
| It cleans the air that enters the vehicle interior. The damp
fins on the evaporator collect dust and pollen, which is then
removed by condensation. |
| Temperatures in a mid-size vehicle (for example: after a
short drive, outside temperature 30 °C (86 °F) in the shade and
the vehicle exposed to sunlight). |
|
|
|
| Area |
Temperature with A/C System in Celsius (Fahrenheit) |
Temperature
without A/C System in Celsius (Fahrenheit) |
| Head area |
23 °C (73
°F) |
42 °C (107 °F) |
| Upper body area |
24 °C (75
°F) |
40 °C (104 °F) |
| Foot area |
30 °C (86 °F) |
35 °C (95 °F) |
| Environmental Information |
| Vehicles manufactured after 1992 have air conditioning
systems that use refrigerant R134a. This refrigerant does not
contain chlorine and does not deplete the ozone layer. |
| Refrigerant R12 was used through 1992. Due to its chlorine
atoms, this CFC has a high potential for depleting the ozone
layer as well as a tendency to increase the greenhouse effect. |
| Conversions are offered for existing systems filled with the
ozone-depleting substance R12. |
| Refer to Repair Manual for A/C systems with refrigerant R12.
This repair manual is only available in hard copy. |
| For environmental protection reasons, refrigerants must not
be released into the atmosphere. For laws and regulations. Refer
to
→ Chapter „Laws and Regulations“. |
|
|
|
Refrigerant oil mixes with the refrigerant (about 20 - 40%,
depending on compressor type and amount of refrigerant) and
circulates constantly in the system, lubricati ...
The temperature in the passenger compartment depends on the
amount of heat radiated through the windows and conducted by the
metal parts of the body. In hot weather i ...
Other materials:
Flushing Circuit Block Diagrams
Note
The arrows in the following illustrations show the direction
of refrigerant flow while flushing. During flushing, refrigerant
flows in the opposite direction than during A/C system
operation, therefore the high pressure side of A/C se ...
Primary Lock
The primary lock is the locking mechanism of an individual
crimp contact in the contact housing.
If necessary, housing securing mechanisms (secondary locks)
must be released or removed using specified tool before
releasing the contacts. ...
Fastening rings
Fig. 88 In the luggage compartment: fastening
rings
First read and observe the introductory information
and safety warnings
You will find fastening rings at the front and rear of the luggage compartment
which can be used to secure luggage (arrow).
WARNING
Unsuitable or damaged securing s ...
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Refrigerant Oil
A/C System Operation