Volkswagen Polo Service & Repair Manual: Test Requirements
Note
Check cooling performance. 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 “AC” on; “max”; “cold”. |
Connections with valve and service connections for measuring
and checking. |
Radiator and condenser are clean (clean if necessary). |
Thermal insulation at expansion valve OK and properly
installed. Refer to
→ Rep. Gr.87 for the vehicle-specific repair manual. |
Ribbed belt is OK and properly tensioned. Ribbed belt for
A/C compressor and generator are OK and correctly tensioned.
Refer to
→ Rep. Gr.87 for the vehicle-specific repair manual. |
All air ducts, covers and seals OK and properly installed. |
Fault finding on the electrical equipment and vacuum system
found no malfunction. Refer to
→ Rep. Gr.87 for the vehicle-specific repair manual. |
The A/C system OBD cannot find malfunctions with the Vehicle
Diagnostic Tester in “Guided Fault Finding”. The measured value
block does not show any shut-off condition from the A/C
compressor (only on vehicles with “A/C system” OBD). |
Air flow through dust and pollen filter not obstructed by
dirt. Refer to
→ Rep. Gr.87 for the vehicle-specific repair manual. |
The heater and A/C unit does not draw in any secondary air
at the highest fresh air blower speed. Evaporator and heater not
drawing in secondary air at maximum fresh-air blower speed.
Refer to
→ Rep. Gr.87 for the vehicle-specific repair manual. |
The air flaps in the heater and A/C unit reach their end
position. Refer to
→ Rep. Gr.87 for the vehicle-specific repair manual. |
Fresh-air intake ducts beneath hood and in passenger
compartment as well as corresponding water drain valves OK, see
vehicle specific Repair Manual. Refer to
→ Rep. Gr.87. |
Vehicle is not exposed to direct sunlight. |
Ambient temperature greater than 15 °C (60 °F). |
All instrument panel vents are open. |
With engine running and maximum cooling output set on air
conditioning system: |
Maximum cooling output, setting |
Setting on Front A/C Display Control Head -E87-. |
– |
Preselect “Auto” mode (A/C compressor on). |
– |
Set the temperature preset “LO” for the driver and front
passenger sides. |
Setting on heater controls: |
– |
A/C button and Rec- or recirculated air button pressed. |
– |
Temperature dial in the “Cold” position. |
– |
Fresh-air blower dial in “4” position. |
The Coolant Fan -V7- runs (the fans run) (at least in level
1).* |
Note
For some versions, the fan is switched on only once the
pressure in refrigerant circuit has exceeded a specified value. |
The Fresh Air Blower -V2- runs at maximum speed. |
Recirculated/fresh-air door set to “air recirculation mode”
(within 1 min. after starting vehicle, air-flow door is closed
and recirculated air door opened).* |
Is the coolant shut-off valve closed?* |
Are the valves on the pump valve unit closed and the coolant
circulation pump is not pumping? * |
|
Note
Check cooling performance. The A/C system is functioning
correctly when the air flowing from the instrument panel vents
has a temperature of ...
Other materials:
Introduction
This chapter contains information on the following subjects:
→ Indicator lamps
→ Catalytic converter
→ Diesel particulate filter
Additional information and warnings:
Changing gear
Filling the tank
Fuel
Engine oil
Battery
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