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.
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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) |
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Item | Function | Designation | Equipment variant |
1 | Downshift button (on-board computer) | "Back" button | - |
2 | Touch control (on-board computer) | Instrument cluster finger navigation pad | - |
3 | Main menu button (multimedia system) | Main menu button | Vehicles without DISTRONIC PLUS or without Driving Assistance Package |
4 | Downshift/Home button (on-board computer) | Main menu and Back button | Vehicles with DISTRONIC PLUS or with Driving Assistance Package |
5 | Change between limiter and Distance Assist | Variable speed limiter and Proximity Control Assist button | Vehicles with DISTRONIC PLUS or with Driving Assistance Package |
6 | Activate cruise control or limiter and call up stored speed | Cruise control resume switch | Vehicles without automatic speed control |
Accept a detected speed | Cruise control resume switch | Vehicles with automatic speed control | |
7 | Activate cruise control or limiter/increase speed | Cruise control switch | - |
8 | Select cruise control | Cruise control and variable speed limiter switch | Vehicles without DISTRONIC PLUS or without Driving Assistance Package |
9 | Increase specified distance to vehicle in front | Proximity Control Assist switch | Vehicles with DISTRONIC PLUS or with Driving Assistance Package |
10 | Deactivate cruise control/limiter or Distance Assist | Cruise control resume switch | - |
11 | Activate cruise control or limiter/reduce speed | Cruise control switch | - |
12 | Select variable limiter | Cruise control and variable speed limiter switch | Vehicles without DISTRONIC PLUS or without Driving Assistance Package |
13 | Reduce specified distance to vehicle in front | Proximity Control Assist switch | Vehicles with DISTRONIC PLUS or with Driving Assistance Package |
Control elements of head unit multifunction steering wheel button group (24) |
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Item | Function | Designation | Equipment variant |
14 | Main menu button (multimedia system) | Main menu button | - |
15 | Touch control (multimedia system) | Head unit finger navigation pad | - |
16 | Back key | "Back" button | - |
17 | Voice Control System or voice control, start voice dialog | Voice control ON and favorites switch | - |
18 | Adjust volume | Volume control switch | - |
19 | Make/accept call | Accept/terminate phone call switch | - |
20 | Show favorites | Voice control ON and favorites switch | - |
21 | Sound OFF (end voice dialog) | Volume adjustment switch | - |
22 | Reject/terminate call (end voice dialog) | Accept/terminate phone call switch | - |
Operation of the on-board computer or the multimedia system through the finger navigation pads is indicated acoustically.
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Lower multifunction steering wheel button group (vehicles with AMG steering wheel buttons (AMG DRIVE UNIT)), shown on left-hand drive vehicle |
25 | Lower multifunction steering wheel button group 1 | 26 | Lower multifunction steering wheel button group 2 |
Button group | Function |
Lower multifunction steering wheel button group 1 (25) | Electronic Stability Program (ESP®) (On, Off, Sport) |
Suspension (Comfort, Sport, Sport Plus) | |
Transmission (Manual, Automatic) | |
ECO start/stop function (On, Off) | |
Exhaust gas flap (Open, Closed) | |
Lower multifunction steering wheel button group 2 (26) | Drive program (Comfort, Sport, Sport Plus, RACE, Individual, ECO, Slippery) |
Traction control (Stages 1 to 9) |
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27 | Steering wheel downshift button | 28 | Steering wheel upshift button |