Audi Q7 2007 Repair Manual page 180

Audi Q7 2007 ➤
Heating, Ventilation and Air Conditioning - Edition 04.2013
– Intermediate fresh air blower speed (approximately seven
volts). Use the Vehicle Diagnostic Tester via the "Guided Fault
Finding" function.
– Operating mode "Fresh Air".
– Check measured value of Evaporator Vent Temperature Sen‐
sor - G263- (for example, via the "Read measuring value
block" function). Use the Vehicle Diagnostic Tester via the
"Guided Fault Finding" function. If measured value is too low
(at an ambient temperature above 0° C, colder than 0° C for
extended period of time) or too high (greater than, for example,
10° C even though A/C system is operating without problems),
observe notes for testing cooling output. Refer to
⇒ "13 A/C Unit, Checking Cooling Output", page 215
the Vehicle Diagnostic Tester via the "Guided Fault Finding"
function.
9.37.2 Front Condensation Water Drain Hose,
Removing and Installing
Note
Only one condensation water drain hose is installed on this
♦
vehicle (at right on the A/C unit in passenger compartment).
There is a door -D- on the outlet opening on the condensation
♦
water drain hose -A-, check this door, it must not be jammed
and must close.
Condensation water drain -A- ends in engine compartment at
♦
lower right beneath bulkhead. Depending on version of vehicle
(engine and transmission configuration), condensation water
drain can be checked via the engine compartment (from above
or below).
For clear illustration, condensation water drain -A- is depicted
♦
with assemblies removed.
Door -B- on condensation water drain must not be obstructed
♦
by wax or underbody sealer, it must close properly.
Removing
– Remove the instrument panel trim under the glove compart‐
ment: Refer to ⇒ Body Interior; Rep. Gr. 70 ; Instrument Panel;
Instrument Panel, Removing and Installing .
– Remove the lower right "A" pillar trim. Refer to ⇒ Body Interior;
Rep. Gr. 70 ; Instrument Panel; Instrument Panel, Removing
and Installing .
174
Rep. Gr.87 - Air Conditioning
and use
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with respect to the correctness of information in this document. Copyright by AUDI AG.