Task
The multifunction steering wheel is a component of the vehicle's steering. It is used primarily to change the direction of the vehicle.
Structure
Various controls are located on the multifunction steering wheel with which a variety of functions can be operated.
A steering wheel electronics system is integrated into the multifunction steering wheel. This is connected to the network architecture of the vehicle. The steering wheel electronics digitalizes the control signals from the multifunction steering wheel controls and provides them to other vehicle systems.
On vehicles equipped with a steering wheel heater the steering wheel rim can be heated.
S82.90-A001-78
23 | Instrument cluster multifunction steering wheel button group | 24 | Head unit multifunction steering wheel button group |
Control elements of instrument cluster multifunction steering wheel button group (23) |
P82.90-2609-81
Item | Function | Equipment variant |
1 | Downshift button (on-board computer) | - |
2 | Finger navigation pad (Touch Control (on-board computer)) | - |
3 | Main menu button (multimedia system) | Vehicles without DISTRONIC or without Driving Assistance Package |
4 | Downshift/Home button (on-board computer) | Vehicles with DISTRONIC or with Driving Assistance Package |
5 | Change between limiter and Distance Assist. | Vehicles with DISTRONIC or with Driving Assistance Package |
6 | Activate cruise control or variable limiter and call up stored speed. | Vehicles without automatic speed control |
Accept a detected speed | Vehicles with automatic speed control | |
7 | Activate cruise control or limiter/increase speed | - |
8 | Select cruise control. | Vehicles without DISTRONIC or without Driving Assistance Package |
9 | Increase specified distance to vehicle in front. | Vehicles with DISTRONIC or with Driving Assistance Package |
10 | Deactivate cruise control, variable limiter or Distance Assist. | - |
11 | Activate cruise control or limiter/reduce speed | - |
12 | Select variable limiter. | Vehicles without DISTRONIC or without Driving Assistance Package |
13 | Reduce specified distance to vehicle in front (Distance Assist). | Vehicles with DISTRONIC or with Driving Assistance Package |
Control elements of head unit multifunction steering wheel button group (24) |
P82.90-2610-81
Item | Function | Equipment variant |
14 | Main menu button (multimedia system) | - |
15 | Finger navigation pad (Touch Control (multimedia system)) | - |
16 | Back key | - |
17 | Voice Control System or voice control, start voice dialog. | - |
18 | Adjust volume. | - |
19 | Make/accept call. | - |
20 | Show favorites. | - |
21 | Sound OFF (end voice dialog). | - |
22 | Reject/terminate call (end voice dialog) | - |
Operation of the on-board computer or the multimedia system through the finger navigation pads is indicated acoustically.