Audi Q7 2007 Repair Manual page 179

– Check clearance of the insulation mat (in engine compart‐
ment, not present in all vehicles) via opening -B- in floor plate
-C- or out from engine compartment, it must be large enough
so that it does not contact the door -D-, permitting condensa‐
tion water to drain out from condensation water drain opening.
– Check installation position of floor mat -E-, it must not constrict
(compress) cross section of condensation water drain hose
-A-.
Note
Door -D- (valve) must not be obstructed by wax or underbody
♦
sealer, it must close properly.
Door -D- can also be checked via the engine compartment
♦
(from above or below) with engine installed, depending on
version.
♦ For complaints of moisture in passenger compartment, check
the following components as well as condensation water
drains:
– Water drain openings in plenum chamber. Refer to
⇒ "5.8 Plenum Chamber Water Drain, Checking and Clean‐
ing", page 64 .
– Water drain from fresh air intake shaft. Refer to
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
⇒ "5.3 A/C System Fresh Air Intake Shaft, Removing and In‐
with respect to the correctness of information in this document. Copyright by AUDI AG.
stalling", page 55 .
– Plenum chamber cover and wind cowl for damage and correct
installation. Refer to ⇒ Body Exterior; Rep. Gr. 50 ; Body
Front; Plenum Chamber Bulkhead, Removing and Installing .
– Dust and pollen filter for soiling and correct installation. Refer
to
⇒ "9.35 Dust and Pollen Filter, Removing and Installing", page
169 .
– Forced air extraction vents in luggage compartment. Refer to
⇒ "5.7 Vent Frame, Checking", page 64
– The actuation and functionality of fresh/recirculating air door
(visual inspection, for example under instrument panel with
cover removed). Refer to
⇒ "9.32 Recirculation Door Motor V113 , Removing and In‐
stalling", page 166 (and also via the "output Diagnostic Test
Mode (DTM)" function on vehicles with "Comfort" version A/C
system, if necessary). Use the Vehicle Diagnostic Tester via
the "Guided Fault Finding" function.
– The signal detecting windshield wiper operation at the Clima‐
tronic Control Module - J255- front A/C control head (for ex‐
ample, via the "Read measuring value block" function on
vehicles with "Comfort" version A/C system). Use the Vehicle
Diagnostic Tester via the "Guided Fault Finding" function.
♦ Check air vent temperature from evaporator via measured
values of Evaporator Vent Temperature Sensor - G263- under
the operating conditions indicated by customer with the fol‐
lowing setting on the Climatronic Control Module - J255- front
A/C control head (for example, via the "Read measuring value
block" function). Use the Vehicle Diagnostic Tester via the
"Guided Fault Finding" function.
– Temperature preselect "Lo" for driver's and front passenger's
side (on "Comfort" version) or temperature switch at "Cold"
stop (on "Basic" version)
Heating, Ventilation and Air Conditioning - Edition 04.2013
.
9. A/C System Control Components Inside Passenger Compartment
Audi Q7 2007 ➤
173