Audi Q7 2007 Repair Manual page 30

Audi Q7 2007 ➤
Heating, Ventilation and Air Conditioning - Edition 04.2013
Note
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 Climatronic Control Module - J255-
front A/C control head. Vehicles with a 6-cylinder TDI engine,
an 8-cylinder engine or a 12-cylinder TDI engine but without a
Refrigerant Temperature Sensor - G454- may only have the
"Comfort" version of the front A/C control head installed (part
number "4L0 820 043", beginning with index letter "K"). Refer
to the Parts Catalog.
If the vehicle has the "Basis" A/C system without a Refrigerant
♦
Temperature Sensor - G454- , and the sensor -G454- is being
displayed as a fault, then perform an adaptation to the "Basis"
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 Re‐
frigerant Temperature Sensor - G454- and the evaluating of
the refrigerant temperature sensor -G454- switches off (by en‐
tering "adaptation"). Use the Vehicle Diagnostic Tester via the
"Guided Fault Finding" function.
24
Rep. Gr.87 - Air Conditioning
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