Audi TT - Page 162

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Before installing the A/C compressor, refer to ⇒ Refrigerant
R134a Servicing; Rep. Gr. 00 ; Removal and Installation .
Note
♦ Coat the O-ring seals lightly with refrigerant oil prior to instal‐
lation. Refer to ⇒ “1.21 Refrigerant Circuit O-rings“, page 41 .
♦ An uncertain quantity of refrigerant oil remains in a removed
A/C compressor. Therefore, observe the notes for replacing
the A/C compressor. Refer to⇒ Refrigerant R134a Servicing;
Rep. Gr. 00 ; Removal and Installation .
♦ Tightening torque; vehicles with a 4 or 6 cylinder engine. Refer
to
⇒ “5.1 A/C Compressor, Removing From Bracket“,
page 103 . Vehicles with 5 cylinder engine, refer to
⇒ “5.2 A/C Compressor, Removing From Bracket“,
page 106 . Attach the refrigerant lines to the A/C compressor.
Refer to
⇒ “5.18.1 A/C Compressor Refrigerant Lines“, page 154 .
♦ Replace the O-ring seals on opened connection points, ver‐
sion, refer to Electronic Parts Catalog.
– Remove the A/C compressor from the bracket. Refer to
⇒ “5.1 A/C Compressor, Removing From Bracket“, page 103
or
⇒ “5.2 A/C Compressor, Removing From Bracket“,
page 106 .
– After installing a new A/C compressor (or after charging com‐
pressor with cold refrigerant oil, such as, after flushing refrig‐
erant circuit) run the A/C compressor through 10 rotations by
hand after installing and before routing the ribbed belt.
Note
The A/C compressor on 5 cylinder vehicles have 2 ribbed belts.
The A/C compressor has a belt pulley with a double belt guide.
Refer to
⇒ “5.2 A/C Compressor, Removing From Bracket“, page 106 .
– Mount the ribbed belt(s) on the ribbed belt pulley. Refer to ⇒
Engine Mechanical; Rep. Gr. 13 ; Removal and Installation .
– Discharge and fill the refrigerant circuit. Refer to⇒ Refrigerant
R134a Servicing; Rep. Gr. 00 ; Description and Operation (A/
C Service Station).
– Install remaining components.
– 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 .
Audi TT 2007 ➤
Heating, Ventilation and Air Conditioning - Edition 01.2011
158 Rep. Gr.87 - Air Conditioning