Right and Left Multifunction Buttons on Steering Wheel -E441-/-E440-, Removing and Installing, Steering Wheel with Round Airbag
Special tools and workshop equipment required
The multifunction buttons -2- are clipped to the decorative trim -1-. The decorative trim -1- and the multifunction buttons -2- are attached to the steering wheel. The multifunction buttons -2- have two extra retainers -3-.
When removing, first make sure the decorative trim -1- can be loosened by hand (approximately 5 mm). Then, using the Trim Removal Wedge -3409-, open the retainers -3- on the multifunction buttons -2- and remove the decorative trim -1- together with the multifunction buttons -2-.
Decorative Trim Retainers
1 - Decorative Trim
Arrows - catches
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 Airbag; Overview - Driver Airbag.
- Remove the connecting wires from the guides in the steering wheel.
- Loosen the trim panel -2- with the multifunction buttons by hand -arrows- and remove it approximately 5 mm from the steering wheel -1-.
- Release the multifunction buttons -2- with the Trim Removal Wedge -3409- next to the catches -3- (on the inside of the multifunction buttons). For this place the Trim Removal Wedge -3409- first on the top and then on the bottom of the multifunction buttons -2-.
- While doing this, be careful of the connectors to the tiptronic switches -2-.
- Release and disconnect the connector -2- from the multifunction buttons.
- Remove the decorative trim with the multifunction buttons from the steering wheel.
The multifunction buttons are attached to the decorative trim.
- Disconnect and remove the connector -3- from the multifunction button -1-.
- Open the clips -arrows- and push the multifunction button -1- out of the decorative trim -2-.
The additional wire on the right multifunction button remains on the button.
Installing
- Install in reverse order of removal. Note the following:
- Place the decorative trim with mounted multifunction buttons onto the steering wheel.
- Route the connection cable for the tiptronic switch -2- as shown.
- Route the rest of the connection cable, including the connectors, into the guides in the steering wheel.
- Push the decorative trim -2- with multifunction buttons onto the steering wheel -1- until it engages securely.
- Finally, check the steering wheel again to make sure the wiring is correct.
Right and Left Multifunction Buttons on Steering Wheel -E441-/-E440-, Removing and Installing, Steering Wheel with Trapezoidal Airbag
Special tools and workshop equipment required
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 the direction of -arrow B-.
- Pry out the multifunction button -1- on the other side in the 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 the direction of -arrow A-.
- Insert the outer multifunction button -1- and then engage -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 decorative trim with the multifunction buttons. 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 toward the rear.
Installing
- Install in reverse order of removal. Note the following:
- Pay attention to the location of the connecting cable -2- to the multifunction button.
Tightening Specifications