Audi Q7 2007 Repair Manual page 252

Audi Q7 2007 ➤
Heating, Ventilation and Air Conditioning - Edition 04.2013
Note
At the start of production, for ex‐
♦
ample, not installed on vehicles
with 6-cylinder gasoline engine
The Refrigerant Temperature
♦
Sensor - G454- was discontin‐
ued from 11/2007 as a running
change. On vehicles with the
"Comfort" A/C system, make
sure the Climatronic Control
Module - J255- front A/C control
head for the "Comfort" A/C sys‐
tem is installed. Vehicles with a
6-cylinder TDI engine, an 8-cyl‐
inder engine or a 12-cylinder TDI
engine but without a Refrigerant
Temperature Sensor - G454-
may only have the "Comfort"
front A/C control head installed
(part number "4L0 820 043", be‐
ginning with index letter "K"). Re‐
fer to the Parts Catalog and use
the Vehicle Diagnostic Tester via
the "Guided Fault Finding" func‐
tion.
If the vehicle has the "Basis" A/C
♦
system without a Refrigerant
Temperature Sensor - G454- ,
and the sensor -G454- is being
Protected by copyright. Copying for private or commercial purposes, in part or in whole, is not
displayed as a fault, then per‐
permitted unless authorised by AUDI AG. AUDI AG does not guarantee or accept any liability
form an adaptation to the "Basis"
with respect to the correctness of information in this document. Copyright by AUDI AG.
front A/C control head. It is not
necessary to perform this on the
"Comfort" A/C system because it
has different versions of the front
A/C control head. On vehicles
with the "Basis" A/C system,
"Guided Fault Finding" displays
the fault missing Refrigerant
Temperature Sensor - G454-
and the evaluating of the refrig‐
erant temperature sensor -
G454- switches off (by entering
"adaptation"). Use the Vehicle
Diagnostic Tester via the "Gui‐
ded Fault Finding" function.
8 - Condenser
❑ Refrigerant lines, disconnecting and reconnecting. Refer to
⇒ "15.6 Refrigerant Lines, Disconnecting from Condenser and Connecting", page 256
❑ Condenser, removing and installing. Refer to
9 - Reservoir with Dryer Cartridge
❑ Receiver/dryer is a component of the condenser
❑ Dryer cartridge can be replaced as an individual part
WARNING
♦ Only remove the dryer
cartridge when the refrig‐
erant has been dis‐
charged from the A/C
system.
246
Rep. Gr.87 - Air Conditioning
⇒ "15.7 Condenser, Removing and Installing", page 258
.
.