Volkswagen Touran Service Manual: Refrigerant Circuit, Flushing

Volkswagen Touran Service Manual / Heating, Ventilation and Air Conditioning / Refrigerant Circuit, Removing Contaminants / Refrigerant Circuit, Flushing with Compressed Air and Nitrogen / 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:

Volkswagen Touran Owners Manual. Seat belt routing
Fig. 60 Correct seat belt routing and head restraint adjustment Fig. 61 Correct seat belt routing during pregnancy First read and observe the introductory information and safety warnings Seat belts will offer an optimum level of protection during an accident only when they are rout ...

Volkswagen Touran Owners Manual. Changing bulbs in the tail light cluster in the body
Fig. 222 A: removing the trim B: detaching the connector and removing the bulb holder First read and observe the introductory information and safety warnings The actions should be carried out in the given order only. Removing the tail light cluster The jobs ...