Audi Q7 2007 Repair Manual page 105

❑ Also observe additional notes for the Climatronic Control Module - J255- front A/C control head. Refer
to
⇒ "9.5 Climatronic Control Module J255 Front A/C Control Head Information, Removing and Installing",
page 105 .
❑ On Board Diagnostic (OBD) of the Climatronic Control Module - J255- front A/C control head is to be
performed as described in Guided Fault Finding. Refer to ⇒ Vehicle Diagnostic Tester VAS5051 in
"Guided Fault Finding" function. .
❑ The buttons and display fields are illuminated by light emitting diodes (LED), cannot be replaced.
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 Clima‐
tronic Control Module - J255-
front A/C control head. On vehi‐
cles with a 6-cylinder TDI engine,
an 8-cylinder engine or a 12-cyl‐
inder TDI engine but without a
Refrigerant Temperature Sensor
- G454- may only have the "Com‐
fort" front A/C control head in‐
stalled (part number "4L0 820
043", beginning with index letter
"K". Refer to the Parts Catalog
and use the Vehicle Diagnostic
Tester via the "Guided Fault
Finding" function.
From 11/2007, the "Comfort" A/C
♦
Protected by copyright. Copying for private or commercial purposes, in part or in whole, is not
system as an updated Fresh Air
permitted unless authorised by AUDI AG. AUDI AG does not guarantee or accept any liability
Blower Control Module - J126-
(an updated "Comfort" Clima‐
tronic Control Module - J255-
and an updated Fresh Air Blower
- V2- ). An updated air intake
housing is also being used.
Make sure to use the correct al‐
location for these parts with each
other. Refer to
⇒ "9.31 Fresh Air Blower Control
Module J126 , Removing and In‐
stalling", page 164
Parts Catalog.
❑ From MY 2010, the Climatronic Control Module - J255- front A/C control head with part number 4L0 820
043 from index "AA" will be installed as a running change. Refer to the Parts Catalog. On vehicles with
these front A/C control heads, the screen in the "MMI" display will not switch to "A/C system" when the
buttons and knobs on the front A/C control head are pressed. The selected A/C system functions are
shown in the running display. Certain A/C system functions in these vehicles will be selected and acti‐
vated with the rotary push buttons on the "MMI" unit. Refer to Owner's Manual. This front A/C control
head has an or
AC
Note
Use the "MMI" ("A/C") to select
♦
additional functions if the Clima‐
tronic Control Module - J255-
front A/C control head does not
have a
Setup
the Owner's Manual.
Heating, Ventilation and Air Conditioning - Edition 04.2013
with respect to the correctness of information in this document. Copyright by AUDI AG.
and to the
button instead of a
A/C
button. Refer to
9. A/C System Control Components Inside Passenger Compartment
button. Refer to the Owner's Manual.
Setup
Audi Q7 2007 ➤
99