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.
Check using Vehicle diagnosis, testing and information system -VAS5051B- in the "Guided Fault Find‐
ing".
8 - Outside Air Temperature Display -G106-
❑ The Outside Air Temperature Display is a component of the Instrument Cluster Control Module -J285- .
❑ Measured value of Outside Air Temperature Sensor -G17- is evaluated by Instrument Cluster Control
Module -J285- and transmitted via Comfort CAN-Bus to the Climatronic control module -J255- . Check
using Vehicle diagnosis, testing and information system -VAS5051B- in the "Guided Fault Finding".
❑ Check the temperature sensor measured values if the temperature display is incorrect using Vehicle
diagnosis, testing and information system -VAS5051B- in the "Guided Fault Finding".
9 - Left Center Instrument Panel Vent
❑ Removing and installing instrument panel vents, refer to ⇒ “5.16 Instrument Panel Vents“, page 152 and
⇒ Body Interior; Rep. Gr. 70 ; Removal and Installation .
10 - Instrument Panel Vent, Center
❑ Removing and installing instrument panel vents, refer to ⇒ “5.16 Instrument Panel Vents“, page 152 and
⇒ Body Interior; Rep. Gr. 70 ; Removal and Installation .
11 - Right Center Instrument Panel Vent
❑ Removing and installing instrument panel vents, refer to ⇒ “5.16 Instrument Panel Vents“, page 152 and
⇒ Body Interior; Rep. Gr. 70 ; Removal and Installation .
12 - Climatronic Control Module -J255-
❑ Different versions, with or without seat heating switch, with different temperature unit (ºC or ºF) on tem‐
perature setting rotary switch, rotary switches with black or silver surface. For the allocation refer to the
Electronic Parts Catalog (ETKA).
❑ 5 cylinder vehicle may only have A/C controls, part number 8J0 820,043 starting with index “D“. Refer
to the Electronic Parts Catalog (ETKA) and Vehicle diagnosis, testing and information system -
VAS5051B- in the "Guided Fault Finding".
❑ Starting with model year 2011, A/C system control heads—part number 8J0 820,043, beginning with
index “BA“—shall be gradually installed. These control modules possess an added function for the ex‐
panded change indicator that is part of the efficiency indicator for the on-board computer. Therefore, no
A/C system control head with part number 8J0 820,043 up through index “G“ may be installed in a vehicle
containing an expanded change indicator in the on-board computer. Refer to Electronic Parts Catalog
(ETKA), Vehicle diagnosis, testing and information system -VAS5051B- in the "Guided Fault Finding"
and the owner's manual.
❑ Removing and installing, refer to ⇒ “1.9 Climatronic Control Module J255 “, page 31 .
❑ The Instrument Panel Interior Temperature Sensor -G56- is integrated in the Climatronic control module
(cannot be replaced separately).
❑ Interior Temperature Sensor Fan -V42- is installed in Climatronic control module -J255- , however it
cannot be replaced individually. Refer to ⇒ “5.17 Interior Temperature Sensor Fan V42 “, page 153 .
❑ Also observe additional notes for Climatronic control module. Refer to
⇒ “1.9 Climatronic Control Module J255 “, page 31 .
❑ On Board Diagnostic (OBD) of Climatronic control module is to be performed as described in Guided
Fault Finding using Vehicle diagnosis, testing and information system -VAS5051B- in the "Guided Fault
Finding".
❑ The buttons and rotary switches have LEDs, they cannot be replaced individually.
❑ The function and indicator lights in the buttons and in the rotary switches cannot be replaced separately.
13 - Interior Temperature Sensor Fan -V42-
❑ Climatronic control module -J255- installed.
❑ Interior Temperature Sensor Fan, removing and installing, refer to
⇒ “5.17 Interior Temperature Sensor Fan V42 “, page 153 .
14 - Instrument Panel Interior Temperature Sensor -G56-
❑ Integrated in Climatronic control module -J255- , cannot be replace separately
Audi TT 2007 ➤
Heating, Ventilation and Air Conditioning - Edition 01.2011
60 Rep. Gr.87 - Air Conditioning
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