VW Polo manuals

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.
The engine is warm.
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:
Refer to → Rep. Gr.87.
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? *
Refrigerant Circuit Pressures (with A/C Service Station), Checking
...

Pressures, Checking
  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:

Indicator lamps and fuel gauge
Fig. 129 In the instrument cluster: Variants A and B: fuel gauges for petrol and diesel. Variant C: fuel gauge for autogas First read and observe the introductory information and safety warnings  Lit up Needle position  Possible cause ...

Indicator lamps
First read and observe the introductory information and safety warnings Indicator lamps in the instrument cluster Lit up Possible cause Solution Vehicle lighting not working partially or completely. Change the corresponding bulb or If al ...

A/C Compressor without Magnetic Clutch
  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 manufactu ...

© 2016-2024 Copyright www.vwpolo.net