| – |
Remove air conditioner compressor. |
| – |
Remove oil drain screw from air conditioner compressor. |
 Note
| 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. |
| Pour old refrigerant oil out of air conditioner compressor,
handling refrigerant oil
→ Volkswagen ServiceNet; Service handbook; Environmental
protection; Waste disposal; Current situation; Disposal
channels; Disposal of used oils; Refrigerant oils. |
| 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. |
| Different types and quantities of refrigerant oils are
required for different air conditioner compressors
→ Rep. gr.87. |
| 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. |
| 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. |
| 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. |
|
|
|
Questions & answers
If the refrigerant circuit was completely empty — Volkswagen Golf Mk7
What if the Golf Mk7 AC circuit was completely empty?
Remove the defective part. Remove the compressor, drain and measure the oil, flush the circuit, replace drier, recharge with correct oil and refrigerant quantities.
Drain refrigerant circuit.
–
Remove defective part, purge with compressed air and collect
escaping refrigerant oil.
...
If there is still refrigerant in the refrigerant circuit