Protected by copyright. Copying for private or commercial purposes, in part or in whole, is not
permitted unless authorised by AUDI AG. AUDI AG does not guarantee or accept any liability
with respect to the correctness of information in this document. Copyright by AUDI AG.
Note
4 - Oil Drain Plug
❑ “Denso“ A/C compressors have sealing ring installed, always replace.
❑ “Sanden“ A/C compressors have an O-ring (8.8 mm x 1.5 mm) installed, always replace.
❑ “Denso“ A/C compressor tightening specification 30 Nm.
❑ Tightening specification for the “ Sanden“ A/C compressor: 10 Nm
❑ May only be removed to drain refrigerant oil with A/C compressor removed, (rotate the A/C compressor
via belt pulley to accelerate refrigerant oil flowing out). Refer to⇒ Refrigerant R134a Servicing; Rep. Gr.
00 ; Removal and Installation .
5 - Pressure Relief Valve
❑ Do not remove.
❑ Tightening specification: “Sanden“- A/C compressor 14.5 Nm, “ Denso“- A/C compressor 10 Nm
❑ With O-ring gasket “Denso“- and “ Sanden“- A/C compressors each 8.5 mm x 1.75 mm, refer to
⇒ “1.21 Refrigerant Circuit O-rings“, page 41
6 - Connection With Valve
❑ With the refrigerant circuit empty, use an adapter from the Socket for A/C Valves -T10364- to remove
and install a valve insert.
WARNING
The valve insert may be
removed only when the
refrigerant circuit is emp‐
ty.
7 - High Pressure Sensor -G65-
❑ Removing and installing, refer to
⇒ “5.15 High Pressure Sensor G65 “, page 151
❑ Checking signal, refer to
⇒ “4.8 High Pressure Sensor G65 , Checking Pressure Signal“, page 96
8 - Condenser
❑ Refrigerant lines, disconnecting and reconnecting, refer to
⇒ “5.18.12 Refrigerant Lines, Disconnecting and Connecting from Condenser“, page 178
❑ Condenser, removing and installing, refer to
⇒ “5.18.3 Condenser“, page 159
⇒ “5.18.4 Condenser“, page 161
9 - Fluid Reservoir
❑ Fluid reservoir is secured directly onto condenser.
❑ Coat O-ring seals lightly with refrigerant oil before installing. Refer to
⇒ “1.21 Refrigerant Circuit O-rings“, page 41
❑ Replacing the O-ring seals. Refer to Electronic Parts Catalog (ETKA).
❑ Removing and installing, refer to
⇒ “5.18.11 Fluid Reservoir“, page 175
❑ Different versions. Refer to Electronic Parts Catalog (ETKA).
Note
❑ Dryer cartridge (on a condenser with an integrated fluid reservoir), removing and installing, refer to
⇒ “1.11 Dryer Cartridge“, page 33
.
10 - High Pressure Side Service Connection
❑ Different versions (with primary sealing valve or with Schrader valve) depending on refrigerant line, dis‐
tinguishing characteristics. Refer to ⇒ Refrigerant R134a Servicing; Rep. Gr. 00 ; Description and
Operation (Refrigerant Circuit).
❑ For the A/C service station to measure pressures, to discharge and recharge the refrigerant circuit, refer
to⇒ Refrigerant R134a Servicing; Rep. Gr. 00 ; Description and Operation (A/C Service Station).
❑ To remove and install the service connection or the valve insert with the refrigerant circuit empty, use,
for example, an adapter from the Socket for A/C Valves -T10364- .
Audi TT 2007 ➤
Heating, Ventilation and Air Conditioning - Edition 01.2011
2. Description and Operation
65
