VW Polo manuals

Volkswagen Polo Service & Repair Manual: 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 it is set to “warm”, then check the heat exchanger for leaks.
Smells like a burned clutch.
Evaporation from floor mats, decorative seat covers, etc.
Musty smell
–  Due to various contaminants, such as leaves, pine needles, etc. collecting.
  Note
Clean the plenum chamber.
–  Due to water that cannot drain out of the plenum chamber.
  Note
Check that the plenum chamber water is draining.
Odor from the Heater and A/C Unit
  Note
Odors originating in the heating and A/C unit can mainly be detected in fresh air mode and recirculated air mode.
–  Due to too much condensation water in A/C unit.
  Note
Check the condensation water drain. Refer to → Rep. Gr.87 in the vehicle-specific Repair Manual.
–  Due to an old or heavily contaminated dust and pollen filter.
  Note
Check the dust and pollen filter. Refer to → Rep. Gr.80 in the vehicle-specific Repair Manual.
–  Due to deposits on evaporator fins.
  Note
Clean the evaporator using the Ultrasound A/C Cleaner -VAS6189A-. Refer to → Chapter „Ultrasound A/C Cleaner -VAS6189B-“ or the Suction Feed Spray Gun -VAG1538- and a suitable spray nozzle. Refer to → Chapter „Evaporator, Cleaning with Suction Feed Spray Gun -VAG1538- and Spray Nozzle“.
   
Odor from the Heater and A/C Unit
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Ultrasound A/C Cleaner -VAS6189B
The Ultrasonic HVAC Cleaning System -VAS6189A- is placed in the front passenger footwell and sprays Aero-Clean. Aero-Clean neutralizes microbes and bacteria inside th ...

Other materials:

CAN Bus Wires, Repairing
Unshielded two-strand wiring -1- and -2- with a cross section of 0.35 mm2 or 0.5 mm2 can be used as CAN bus wiring. The color coding of CAN bus wires can be found in the following table:   ...

Tire Wear, Center
This wear pattern is found on drive wheels on high-powered vehicles that often drive long stretches at high speed. At high speeds, the centrifugal force increases the tire diameter at the center of the tread more than at the shoulders of ...

Checklist
To ensure your own safety and that of your passengers, observe the following actions in the specified order : Find a firm and level surface suitable for lifting the vehicle. Stop the engine, select a gear on a manual gearbox or in case of automatic gearbox, move the selector lever ...

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