Audi Q7 2007 Repair Manual page 257

– Remove the bolts -A-.
– Disconnect the refrigerant lines -B- and -C-.
Note
Illustration shows the arrangement on a 6-cylinder engine.
Installing
Install in reverse order of removal. Note the following:
– Replace the O-ring seals -D- and -E-. For the correct version,
refer to the Parts Catalog.
– Tighten the bolts -A- and -B- to 20 Nm.
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Note
with respect to the correctness of information in this document. Copyright by AUDI AG.
Do not use the O-Rings from the shipping caps that are in‐
♦
stalled on the connections of replacement compressor when
installing lines.
Coat the O-ring seals lightly with refrigerant oil prior to instal‐
♦
lation. Refer to
⇒ "3.6 Refrigerant Circuit O-Ring Seals", page 26
Following attachment of refrigerant pipes to compressor (and
♦
installation of compressor) check routing of pipes. They must
be inserted in holders provided and not make contact with
other components.
On vehicles with a 6-cylinder TDI engine from MY 2012, an
♦
additional chafe protection -A- is installed on the low pressure
refrigerant line -B- as a running change. Make sure that the
installation position for the chafe protection -A- to the air pipe
-C- is correct.
On vehicles in which a low pressure refrigerant line -B- is in‐
♦
stalled without chafe protection -A-, check the low pressure
refrigerant line -B- for damage. Install the chafe protection
-A- if necessary. Refer to the Parts Catalog.
– 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‐
ing Service Station).
– 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
251