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– Remove the plastic screw -A- (tightening specification: 2 Nm).
– Remove the filter element -C- and the dryer cartridge -F- up‐
ward and out of the condenser.
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 fluid reservoir on the condenser above opening
-G- for dirt.
♦ Make sure the reservoir thread -G- on the condenser is not
dirty or damaged.
♦ Replace plastic screw -A-, filter element -C- (with riser pipe
-E-) and both O-ring seals -B- and -D-.
♦ Coat O-ring seals -B- and -D- lightly with refrigerant oil prior to
installation. Refer to
⇒ “1.21 Refrigerant Circuit O-rings“, page 41
.
♦ Check O-ring seals for proper seating in grooves of respective
components.
♦ Keep dryer cartridge -F- 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 absorbs
moisture in a very short time and become unusable.
– Take the dryer cartridge -F- out of its package and engage it
on the filter element's hook -C-.
– Install the dryer cartridge -F- and filter element -C- in the con‐
denser reservoir.
– Install the plastic screw -A- (tightening specification: 2 Nm).
– Install the compressor. Refer to
⇒ “5.18.4 Condenser“, page 161
.
– 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“,
.
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).
5.18.9
Evaporator
– Remove electrical components from A/C unit. Refer to
⇒ “6.1 Electrical Components of A/C unit“, page 186
.
Audi TT 2007 ➤
Heating, Ventilation and Air Conditioning - Edition 01.2011
172
Rep. Gr.87 - Air Conditioning