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– Remove the plastic screw -A- (tightening specification: 2 Nm).
– Remove the dryer carrier -C- and the dryer cartridge -D- from
the condenser.
– Pull the filter -E- out of the condenser using, for example, a
commercially available pick-up tool.
Note
Seal the open connection on the condenser with the plastic screw
-A- to prevent dirt and moisture from getting in.
Installing
Installation is done is reverse order, observe the following:
♦ Check the reservoir on the condenser above the opening -F-
for dirt.
♦ Make sure the reservoir thread -F- on the condenser is not dirty
or damaged.
♦ Replace the plastic screw -A-, the dryer carrier -C-, the dryer
cartridge -D-, the filter -E- and the O-ring -B-.
♦ Coat the O-ring -C- lightly with refrigerant before installing.
Refer to ⇒ “1.21 Refrigerant Circuit O-rings“, page 41 .
♦ Make sure the O-ring -B- fits correctly inside the groove on the
plastic screw -A-.
♦ Keep the dryer cartridge -D- sealed in its air-tight package as
long as possible. Open the package just before installing the
dryer cartridge into the condenser. The dryer cartridge ab‐
sorbs moisture in a very short time and become unusable.
– Install the filter -E- with the correct side into the condenser
reservoir.
– Take the dryer cartridge -D- out of its package and install it into
the dryer carrier -C-.
– Install the dryer cartridge -D- and dryer carrier -C- into the
condenser reservoir.
– Install the plastic screw -A- (tightening specification: 2 Nm).
– Install the condenser. Refer to 4 cylinder
⇒ “5.18.3 Condenser“, page 159 or 6 cylinder
⇒ “5.18.5 Condenser“, page 164 .
– Install remaining components.
– Discharge and fill the refrigerant circuit. Refer to ⇒ Refrigerant
R134a Servicing; Rep. Gr. 00 ; Description and Operation (A/
C Service Station).
– Operate the A/C system after filling the refrigerant circuit. Re‐
fer to
⇒ “1.4 A/C System, Operating After Filling Refrigerant Circuit“,
page 28 .
Note
Note the information regarding operating the A/C system after
filling. Refer to ⇒ Refrigerant R134a Servicing; Rep. Gr. 00 ;
Description and Operation (A/C Service Station).
Audi TT 2007 ➤
Heating, Ventilation and Air Conditioning - Edition 01.2011
5. Removal and Installation 167