C System Control And Regulation Components Outside Passenger Compartment; General Information; Protected By Copyright. Copying For Private Or Commercial Purposes, In Part Or In Whole, Is Not - Audi Q7 2007 Repair Manual

Audi Q7 2007 ➤
Heating, Ventilation and Air Conditioning - Edition 04.2013
5 A/C System Control and Regulation
Components Outside Passenger
Compartment
⇒ "5.1 General Information", page 48
⇒ "5.2 A/C System Components Not Inside Passenger Compart‐
ment", page 49
⇒ "5.3 A/C System Fresh Air Intake Shaft, Removing and Instal‐
ling", page 55
⇒ "5.4 Air Quality Sensor G238 , Removing and Installing", page
57
⇒ "5.5 Air Quality Sensor G238 Functionality", page 58
⇒ "5.6 Air Quality Sensor G238 , Checking", page 60
⇒ "5.7 Vent Frame, Checking", page 64
⇒ "5.8 Plenum Chamber Water Drain, Checking and Cleaning",
page 64
5.1

General Information

Note
If there is a malfunction in the system, first check DTC memory
♦
of the Climatronic Control Module - J255- front A/C control
head (and of Rear A/C Display Control Head - E265- ). Use
the Vehicle Diagnostic Tester via the "Guided Fault Finding"
function.
If no fault is displayed, check the measured value block for the
♦
Climatronic control module - J255- A/C control head (and the
Rear A/C Display Control Head - E265- ) and activate the af‐
fected component with the "Output diagnostic test mode" func‐
tion. Use the Vehicle Diagnostic Tester via the "Guided Fault
Finding" function.
For servicing operations on A/C system that are possible with‐
♦
out opening refrigerant circuit, refer to
⇒ "3 Refrigerant Circuit", page 12
For servicing operations on A/C system that require the re‐
♦
frigerant circuit to be opened, refer to
⇒ "15 Refrigerant Circuit, Servicing", page 241
Perform the following work after completion of repair opera‐
♦
tions:
– Check DTC memory of the Climatronic Control Module - J255-
front A/C control head (and of Rear A/C Display Control Head
- E265- ) and erase any DTCs displayed. Use the Vehicle Di‐
agnostic Tester via the "Guided Fault Finding" function.
– Check coding of the Climatronic Control Module - J255- front
A/C control head. Use the Vehicle Diagnostic Tester via the
"Guided Fault Finding" function.
– If necessary, check adaptation of Climatronic Control Module
- J255- front A/C control head and Rear A/C Display Control
Head - E265- (not installed on all vehicles). Use the Vehicle
Diagnostic Tester via the "Guided Fault Finding" function.
– Perform A/C system basic setting. Use the Vehicle Diagnostic
Tester via the "Guided Fault Finding" function.
48
Rep. Gr.87 - Air Conditioning

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
with respect to the correctness of information in this document. Copyright by AUDI AG.
.
.