To prevent more refrigerant than is necessary for the leak test
from venting into the air, proceed as follows with the refrigerant
circuit completely empty
– Evacuate the refrigerant circuit with the A/C service station.
Refer to ⇒ “2.4.11 Evacuating Refrigerant Circuit“, page 89 .
Note
♦
If a larger leak is found during evacuation, find and it and repair
it as described. Refer to
⇒ “2.4.11 Evacuating Refrigerant Circuit“, page 89 .
♦
If no leak is found during evacuation or there is a leak that is
so small that the location cannot be found, proceed as follows.
If there is a leak that cannot be detected via the evacuating, refer
to ⇒ page 146 .
Filling Leak Detection Additive When The Refrigerant Circuit Is
Empty
The cartridge -A- contains 15.4 leak detection additive (one unit
-B- corresponds to 2.5 ml).
– Assemble Hand pump -VAS 6201/1- item -1- with cartridge
item -2- -VAS 6201/2- .
– Insert the Filler tube -VAS 6201/8- ( ⇒ page 145 item -7-) in
the hand pump.
– Open hand pump service valve.
Note
♦
Leak detection additive is best added to empty refrigerant cir‐
cuit via a Service connection or via an opened connection.
♦
If the refrigerant circuit is empty, then it is better to add the leak
detection additive at an open connection (for example, when
the connection is already open). This way no leak detection
additive will remain back in the Service connection and then
the connection does not need to cleaned.
♦ Add the leak detector additive to the refrigerant circuit at a
Service connection. Refer to ⇒ page 148 .
♦ Add the leak detector additive to the refrigerant circuit at an
opened connection. Refer to ⇒ page 147 .
Audi 100 1991 ➤ , Audi 80 1992 ➤ , Audi A1 2011 ➤ , Audi A2 2001 ➤ , A ...
Refrigerant R134a Servicing - Edition 01.2011
146 Rep. Gr.00 - General, Technical Data
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