Components Located In Passenger Compartment - Audi Air conditioning 2003 A8 Workshop Manual

8.1

Components located in passenger compartment

1 - Diagnostic socket
❑ Air conditioner guided
fault-finding procedure
⇒ "Guided fault-finding"
function of vehicle diag‐
nostic, testing and infor‐
mation system VAS
5051
2 - Dash panel insert
❑ With ambient tempera‐
ture indicator -G106-
❑ The ambient tempera‐
ture output by the front
operating and display
unit, Climatronic control
unit -J255- is indicated
❑ In the event of an incor‐
rect temperature dis‐
play, check the meas‐
ured values of the
temperature sensors ⇒
"Guided fault-finding"
function of vehicle diag‐
nostic, testing and infor‐
mation system
VAS 5051.
❑ The measured value of
the ambient tempera‐
ture sensor -G17- is
evaluated by the control
unit in dash panel insert
and transmitted by way
of the convenience data
bus system to the front
operating and display
unit, Climatronic control
unit -J255- ⇒ "Guided
fault-finding" function of
vehicle diagnostic, test‐
ing and information system VAS 5051.
3 - Dash panel vent with centre left vent sender -G347-
❑ The potentiometer is installed in the dash panel vent.
❑ Removing and installing dash panel vent ⇒ General body repairs, interior; Rep. gr. 70
4 - Left centre vent control motor -V110-
❑ With potentiometer -G136-
❑ Removing and installing
5 - Humidity sender -G355-
❑ Operation of the humidity sender -G355- is described in the relevant self study programme for this vehicle
⇒ Self-study programme No. 282 ; Audi A8 Technology
❑ The humidity sender -G355- is installed in the area of the interior mirror at the windscreen and connected
to the roof electronics control unit -J528- . ⇒ General body repairs, exterior; Rep. gr. 64
❑ Removing and installing ⇒ General body repairs, exterior; Rep. gr. 64
❑ The humidity sender -G355- determines the windscreen temperature by way of an infrared signal and
the humidity level by way of a built-in condenser. The front operating and display unit, Climatronic control
unit -J255- uses the measured values to calculate the temperature/humidity level at which the windows
start to mist up and alters the settings (outflow temperature of air, outflow direction of air and air flow
rate). The measured values of the sender are indicated in the measured value block of the front operating
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⇒ page 76
8. Components for control and regulation of air conditioner located in passenger compartment
Audi A8 2003 ➤
Air conditioning - Edition 09.2010
71