Audi Q7: Multifunction Steering Wheel
General Information - Multifunction Steering Wheel
Buttons are integrated in the steering wheel for easier operation of Infotainment, telephone and the navigation system. On vehicles with Tiptronic, rocker switches are also installed on the left and right.
The Multifunction Steering Wheel Control Module -J453- (in the right button) reads out the button information and transfers them over the LINBusto the Steering Column Electronics Control Module -J527-. From the Steering Column Electronics Control Module -J527-, the information is transferred to the individual components via the CANBus(comfort) and the DataBusOn Board Diagnostic Interface -J533-.
Fault finding is performed via "Guided Fault Finding" using the Vehicle Diagnostic Tester.
Overview - Multifunction Steering Wheel
Overview - Multifunction Steering Wheel, 4-Spoke Steering Wheel
1 - Tiptronic Downshift Button on Steering Wheel -E439-
- Removing and Installing. Refer to → Chapter "Tiptronic Downshift and Upshift Button on Steering Wheel -E439-/-E438-, Removing and Installing".
2 - 4-Spoke Steering Wheel
3 - Tiptronic Upshift Button on Steering Wheel -E438-
- Removing and Installing. Refer to → Chapter "Tiptronic Downshift and Upshift Button on Steering Wheel -E439-/-E438-, Removing and Installing".
4 - Bolt
- 1 Nm
5 - Right Multifunction Buttons on Steering Wheel -E441-
- Removing and Installing. Refer to → Chapter "Right and Left Multifunction Buttons on Steering Wheel -E441-/-E440-, Removing and Installing".
6 - Left Multifunction Buttons on Steering Wheel -E440-
- Removing and Installing. Refer to → Chapter "Right and Left Multifunction Buttons on Steering Wheel -E441-/-E440-, Removing and Installing".
Overview - Multifunction Steering Wheel, 3-Spoke Steering Wheel
1 - Tiptronic Downshift Button on Steering Wheel -E439-
- Removing and Installing. Refer to → Chapter "Tiptronic Downshift and Upshift Button on Steering Wheel -E439-/-E438-, Removing and Installing".
2 - 3-Spoke-Steering Wheel
3 - Tiptronic Upshift Button on Steering Wheel -E438-
- Removing and Installing. Refer to → Chapter "Tiptronic Downshift and Upshift Button on Steering Wheel -E439-/-E438-, Removing and Installing".
4 - Bolt
- 1 Nm
5 - Right Multifunction Buttons on Steering Wheel -E441-
- Removing and Installing. Refer to → Chapter "Right and Left Multifunction Buttons on Steering Wheel -E441-/-E440-, Removing and Installing".
6 - Left Multifunction Buttons on Steering Wheel -E440-
- Removing and Installing. Refer to → Chapter "Right and Left Multifunction Buttons on Steering Wheel -E441-/-E440-, Removing and Installing".
Right and Left Multifunction Buttons on Steering Wheel -E441-/-E440-, Removing and Installing
Special tools and workshop equipment required
- Trim Removal Wedge -3409-
The multifunction buttons are engaged in the steering wheel.
Removing
- Turn off the ignition and all electrical equipment and remove the ignition key.
- Remove the driver airbag. Refer to → Body Interior; Rep. Gr.69; Driver Side Airbag; Airbag Unit with Igniter, Removing and Installing.
- Release and remove the decorative trim -2-.
- Release the multifunction button -1- with the Trim Removal Wedge - 3409- next to the catch in direction of -arrow B-.
- Pry out the multifunction button -1- on the other side in direction of -arrow A- using the Trim Removal Wedge -3409-.
- Release and disconnect the connectors on the multifunction button.
Installing
- Install in reverse order of removal. Note the following:
- Attach and engage the connectors on the multifunction button.
- Insert the inner multifunction button -1- and then engage in direction of -arrow A-.
- Insert the outer multifunction button -1- and then engage in direction of -arrow B-.
- Insert and engage the decorative trim -3-.
Tiptronic Downshift and Upshift Button on Steering Wheel -E439-/-E438-, Removing and Installing
Removing
- Turn off the ignition and all electrical equipment and remove the ignition key.
- Remove the corresponding multifunction button. Refer to → Chapter "Right and Left Multifunction Buttons on Steering Wheel -E441-/-E440-, Removing and Installing".
- Remove the bolt -2- on the steering wheel -1- and remove the Tiptronic switch -3- with the connecting cable to the rear.
Installing
- Install in reverse order of removal.
- Pay attention to the location of the connecting cable -2- to the multifunction button.
Tightening Specifications
- Refer to → Chapter "Overview - Multifunction Steering Wheel, 4-Spoke Steering Wheel"
- Refer to → Chapter "Overview - Multifunction Steering Wheel, 3-Spoke Steering Wheel"
