Removing, Checking And Installing Condensation Drain Hose - Audi Air conditioning 2003 A8 Workshop Manual

Audi A8 2003 ➤
Air conditioning - Edition 09.2010
8.13 Removing, checking and installing con‐
densation drain hose
Note
This vehicle is fitted with 2 condensation drains (on the right
♦
and left at the air conditioning unit/transmission tunnel).
The condensation drain valve -C- has no flap.
♦
♦ In the event of moisture problems in the passenger compart‐
ment, check the following in addition to the condensation
drains:
– Water drain for plenum chamber
– Proper installation of plenum chamber cover
– Dust and pollen filter for contamination and corresponding
cover for correct installation
– Forced-air extraction in luggage compartment
– Operation of air flow flap
⇒ page 47 e.g. by way of „Final control diagnosis" function ⇒
"Guided fault-finding" function of vehicle diagnostic, testing
and information system VAS 5051.
– The measured values and operation of the humidity sender -
G355- at the front operating and display unit, Climatronic
control unit -J255- ⇒ "Guided fault-finding" function of vehicle
diagnostic, testing and information system VAS 5051.
– The signal for detection of wiper operation at the front operat‐
ing and display unit, Climatronic control unit -J255- ⇒ "Guided
fault-finding" function of vehicle diagnostic, testing and infor‐
mation system VAS 5051.
♦ Check the temperature of the air flowing out of the evaporator
by way of the measured values of the evaporator output tem‐
perature sender -G263- under the usage conditions described
by the customer with the following settings on the front oper‐
ating and display unit, Climatronic control unit -J255- ⇒ "Gui‐
ded fault-finding" function of vehicle diagnostic, testing and
information system VAS 5051.
– „Lo" temperature set for driver and front passenger side
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
– Medium fresh air blower speed (approx. 7V) ⇒ "Guided fault-
with respect to the correctness of information in this document. Copyright by AUDI AG.
finding" function of vehicle diagnostic, testing and information
system VAS 5051.
– Air conditioner „fresh air mode"
90
Rep. gr.87 - Air conditioning system
⇒ page 41
⇒ page 31
⇒ page 31
⇒ page 41
⇒ page 45 and air recirculation flap