Audi Q7: Transmission Control
Component Location Overview - Transmission Control
Data Link Connector
Component location: the data link connector for the Vehicle
Diagnostic Tester is located in the footwell on the driver side.

AWD Control Module -J492- in the A4
Component location: the AWD Control Module -J492--1-
is in the luggage compartment in the center in front of the
spare wheel well.

All Wheel Drive Control Module -J492-, Removing and Installing
- AWD Control Module -J492- component location. Refer to
→ Chapter "Component Location Overview - Transmission Control".
- Removing and installing is on the A4 Sedan.
- The ignition is off.
- Remove the luggage compartment floor covering.
- Remove the AWD Control Module -J492--1-
from the bracket.
- Disconnect the connector -A-
from the AWD Control Module -J492-.
- Install the AWD Control Module -J492- in reverse order of
removal.
- If the AWD Control Module -J492- was replaced then
additional work is necessary. Refer to
→ Chapter "AWD Control Module -J492-, Additional Work after
Replacing".

AWD Control Module -J492-, Additional Work after Replacing
- Only perform the additional work only if the AWD Control
Module -J492- was replaced.
- Connect the Vehicle Diagnostic Tester and turn on the
ignition.
- Select the function 22 - AWD Electronics
in the vehicle diagnostic tester under
Guided Functions in the directory 22-
Replacing Control Module.
- Follow all the instructions given by the Vehicle Diagnostic
Tester exactly.
With the vehicle diagnostic tester the installed rear final
drive is "adapted" on the AWD Control Module -J492-.
- A system check will take place when the
22 - Control Module, Replacing function is complete. If
malfunctions appear, then use "Guided Fault Finding" to correct
them.
READ NEXT:
Special tools and workshop equipment
required
Seal Installer - Flange Shaft -T10049-
Puller - Unit Injector -T10055-
Counterhold - Kit - Multiple Use -T10172-
Counterhold - Kit - Adapters
SEE MORE:
Glove Compartment Handle, Removing and Installing
Special tools and workshop equipment
required
Pry Lever -80-200-
Small screwdriver (approximately 70 mm long) or TORX
screwdriver T10 (approximately 80 mm long) commercially
available
Removing
- Release the hooks -2- for the
glove compar
Caution
This procedure contains mandatory replaceable parts.
Refer to component overview prior to starting procedure.
Mandatory Replacement Parts
O-ring - Rear Expansion Valve to Refrigerant Line - High
Pressure Side
O-ring - Refrigerant Line - Low Pressure Side to Rear
Expansion Valv