Audi Q7 2007 Repair Manual page 269

– Remove the bolts -A-.
– Disconnect the connection points of refrigerant lines -D- and
-E-.
Note
Seal open connections of lines with suitable sealing caps (against
penetration of dirt and moisture).
Assembling
Assembling is carried out in the reverse order, when doing this
note the following:
– Replace the O-ring seals -B- and -C-. For the correct version,
refer to the Parts Catalog.
Note
Coat the O-ring seals lightly with refrigerant oil prior to instal‐
♦
lation. Refer to
⇒ "3.6 Refrigerant Circuit O-Ring Seals", page 26
Note the different tightening torques of bolts -A-.
♦
♦ Tightening torque of bolts -A- with a thread "M6" 10 Nm.
♦ Tightening torque of bolts -A- with a thread "M8" 20 Nm.
– Following attachment, check routing of refrigerant pipes. They
must be inserted in holders provided and not make contact
with other components.
– Reinstall any removed components or re-secure loosened
components.
Note
From MY 2012 on vehicles with a 6-cylinder TDI engine, an ad‐
ditional chafe protection is installed on the low pressure refriger‐
ant line as a running change. Make sure that the installation
position for the chafe protection is correct. Refer to
⇒ "15.3 Refrigerant Lines, Disconnecting from Compressor and
Connecting", page 250
– Evacuate and refill the refrigerant circuit. Refer to ⇒ A/C Sys‐
tem with Refrigerant R134a; Rep. Gr. 87 ; Refrigerant Circuit
(A/C System with Refrigerant R134a; Refrigerant Circuit, Us‐
Protected by copyright. Copying for private or commercial purposes, in part or in whole, is not
ing Service Station).
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.
– Operate the A/C system after filling the refrigerant circuit. Re‐
fer to
⇒ "21 A/C System, Operating after Filling Refrigerant Circuit",
page 332 .
Note
Observe the information regarding operating the A/C system after
filling. Refer to ⇒ A/C System with Refrigerant R134a; Rep. Gr.
87 ; A/C System General Information (A/C System with Refriger‐
ant R134a; A/C System General Information). After charging the
A/C system.
Heating, Ventilation and Air Conditioning - Edition 04.2013
.
Audi Q7 2007 ➤
15. Refrigerant Circuit, Servicing
263