Audi Q7 2007 Repair Manual page 222

Audi Q7 2007 ➤
Heating, Ventilation and Air Conditioning - Edition 04.2013
⇒ "16.4 Compressor, Removing and Installing (Vehicles with
8-Cylinder FSI Engine)", page 283
♦ All air ducts, covers and seals are OK and properly installed
♦ Air flow through dust and pollen filter is not impaired by soiling
(for removing and installing dust and pollen filter, refer to
⇒ "9.35 Dust and Pollen Filter, Removing and Installing", page
169 ).
♦ The vehicle is not exposed to sunlight.
♦ The engine is warm.
♦ The DTC memory of the Climatronic Control Module - J255-
front A/C control head (and of Rear A/C Display Control Head
- E265- ) has been checked and erased, basic setting has
been performed. Use the Vehicle Diagnostic Tester via the
"Guided Fault Finding" function.
♦ The coding of the Climatronic Control Module - J255- front A/
C control head has been checked. Use the Vehicle Diagnostic
Tester via the "Guided Fault Finding" function.
♦ The addaptation of the Climatronic Control Module - J255-
front A/C control head (and of Rear A/C Display Control Head
- E265- ) was checked. Use the Vehicle Diagnostic Tester via
the "Guided Fault Finding" function.
♦ All vents (of instrument panel, in rear center console and in "B"
and "C" pillars) have been opened. (for vehicles with rear A/C
system)
♦ All instrument panel vents are open. (On vehicles with "Com‐
fort" version A/C system without rear A/C system, vents in rear
center console and in "B" pillars closed).
♦ The hood is closed.
♦ The following are set on the Climatronic Control Module -
J255- front A/C control head or on MMI (Multi Media Interface)
(refer to the Owner's Manual):
– "Auto" operating mode (on "Comfort" version A/C system)
– Temperature preselect "LO" (for driver's and front passenger's
side on "Comfort" version A/C system) or temperature rotary
actuator at "cold" stop (for "Basic" version A/C system)
– Compressor switched on (function "Econ" is not active).
– Rotary switch for fresh air blower speed in position "4" (on
"Basic" version A/C system)
♦ Settings on Rear A/C Display Control Head - E265- (if present,
optional equipment)
– Operating mode "Auto" for air distribution.
– Temperature preselect "LO" (for left and right sides).
♦ Functions with engine running:
– Coolant Fan - V7- is running or is switched on when a certain
pressure in refrigerant circuit is exceeded (speed depends on
pressure in refrigerant circuit and on engine coolant tempera‐
ture).
216
Rep. Gr.87 - Air Conditioning
.
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