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Air conditioning system with refrigerant R134a - Edition 10.2014
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The reservoir or receiver is damaged (e.g. in an accident).
Caution
♦ Handling refrigerant ⇒ Volkswagen ServiceNet; Service
handbook; Environmental protection; Waste disposal;
Current situation; Disposal channels; Disposal of used
oils; Refrigerant oils .
lk
11.1
In the event of leaking or damaged com‐
ponents (apart from the air conditioner
compressor, receiver or reservoir)
11.1.1
If the refrigerant circuit was completely
empty
– Remove defective part.
– 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, han‐
dling refrigerant oil ⇒ Volkswagen ServiceNet; Service hand‐
book; 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
3
must be filled with at least 80 cm of refrigerant oil; the re‐
mainder can be poured into the new reservoir or receiver ⇒
Rep. gr. 87 .
♦ If dirt enters the air conditioner compressor whilst the refrig‐
erant circuit is open (e.g. after an accident), the air conditioner
compressor should be renewed.
♦ Blow through refrigerant circuit with compressed air and re‐
move moisture with nitrogen ⇒ page 65 .
– Renew receiver or reservoir and restrictor.
– Assemble the refrigerant circuit, evacuate it and charge it.
11.1.2
If there is still refrigerant in the refriger‐
ant circuit
– Drain refrigerant circuit.
160
Rep. gr.00 - Technical data
English 
