volkswagen Workshop Repair Guides

Volkswagen Workshop Service and Repair Manuals

If there is still refrigerant in the refrigerant circuit > < In the event of leaking or damaged components (apart from the air conditioner compressor, receiver or reservoir)
If the refrigerant circuit was completely empty
If the refrigerant circuit was completely empty
–  Remove defective part.
–  Remove air conditioner compressor.
–  Remove oil drain screw from air conditioner compressor.
  Note
t  To speed up the draining of the refrigerant oil, rotate the shaft of the air conditioner compressor by hand using the poly V-belt pulley or the magnetic clutch.
t  Tipping old refrigerant oil out of air conditioner compressor, handling refrigerant → Volkswagen ServiceNet; Handbooks; Service handbook; Environmental protection; Pollution protection.
t  Then fill the air conditioner compressor with the quantity of new refrigerant oil corresponding to the quantity in a genuine air conditioner compressor → Rep. gr.87.
t  Different types and quantities of refrigerant oils are required for different air conditioner compressors → Rep. gr.87.
t  To ensure proper lubrication of the air conditioner compressor when it runs for the first time, the air conditioner compressor must be filled with at least 80 cm3 of refrigerant oil; the remainder can be poured into the new reservoir or receiver → Rep. gr.87.
t  If dirt enters the air conditioner compressor whilst the refrigerant circuit is open (e.g. after an accident), the air conditioner compressor should be renewed.
t  Blow through refrigerant circuit with compressed air and remove moisture with nitrogen → Chapter.
–  Renew receiver or reservoir and restrictor.
–  Assemble the refrigerant circuit, evacuate it and charge it.
   

If there is still refrigerant in the refrigerant circuit > < In the event of leaking or damaged components (apart from the air conditioner compressor, receiver or reservoir)