VW Polo manuals

Volkswagen Polo Service & Repair Manual: Refrigerant Circuit, Flushing

  Note
For vehicles in which no adapters fit on to the refrigerant pipes, for example, a blower pistol with rubber mouthpiece is to be used to blow through individual components. Special care must be taken not to damage the connections (crushing or scratching).
Evaporator is to be flushed via the connection for low-pressure pipe (large diameter) after removing expansion valve or removing restrictor.
Always flush components in direction opposite of refrigerant flow direction.
Check expansion valve and replace if dirty or corroded.
If there are dark, sticky deposits in the components that cannot be removed with compressed air, replace these components.
Thin, light grey deposits on the insides of refrigerant pipes do not impair the function of the components.
After flushing, always replace receiver/dryer or reservoir and restrictor. Replace dryer cartridge or dryer on condensers with attached dryer.
   
General Information
In order to be able to force moisture and other contaminants out of refrigerant circuit, compressed air and nitrogen (to force moisture out of refrigerant circuit) ar ...

Refrigerant Circuit, Flushing (Cleaning) with Refrigerant R134a
...

Other materials:

Service and disposal of belt tensioners
First read and observe the introductory information and safety warnings Seat belts may become damaged during any work on the belt tensioners or while removing or refitting any vehicle parts in conjunction with any other repair work. This damage will not always be noticeable. The consequence m ...

Tyre damage
First read and observe the introductory information and safety warningsDamage to tyres and rims is often not readily visible. Any unusual vibrations or signs that the car is pulling to one side may indicate that one of the tyres is damaged . Reduce your speed immediately if you suspect th ...

Siemens Wheel Electronics Tire Pressure Monitoring Sensor, Removing and Installing
  WARNING If tire sealant was used, then the wheel electronics on that particular wheel must be replaced. The Siemens wheel electronics does not have a microencapsulated ...

© 2016-2025 Copyright www.vwpolo.net