Audi Q7 2007 Repair Manual page 21

4 - Oil Drain Plug
5 - High Pressure Relief Valve
6 - Connection without Valve
7 - Refrigerant Temperature Sensor - G454-
WARNING
♦ The connection on which
the Refrigerant Temper‐
ature Sensor - G454- is
installed does not pos‐
sess a valve, therefore
the Refrigerant Temper‐
ature Sensor - G454-
may only be removed
with a discharged refrig‐
erant circuit.
❑ Function and signal utilization. Refer to
⇒ "3.5 Refrigerant Temperature Sensor G454 Function and Signal Utilization", page 23
❑ Not installed in all vehicles (depends on the engine, the version of the vehicle and when the vehicle was
produced). Refer to Wiring diagrams, Troubleshooting and Component locations.
Note
For example, installed in vehi‐
♦
cles with a 6-cylinder TDI engine
or an 8-cylinder engine through
10/2007.
The Refrigerant Temperature
♦
Sensor - G454- was discontin‐
ued from 11/2007 as a running
change. On vehicles with the
"Comfort" A/C system, ensure
the correct allocation of the
"Comfort" version of the Clima‐
tronic Control Module - J255-
front A/C control head. Vehicles
with a 6-cylinder TDI engine, an
8-cylinder engine or a 12-cylin‐
der TDI engine but without a Re‐
frigerant Temperature Sensor -
G454- may only have the
"Comfort" version of the front
control head installed (part num‐
ber "4L0 820 043", beginning
with index letter "K"). Refer to the
Parts Catalog.
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.
Heating, Ventilation and Air Conditioning - Edition 04.2013
Audi Q7 2007 ➤
.
15
3. Refrigerant Circuit