Overview
The on-board computer is activated as soon as you turn the SmartKey to position 1 in the ignition lock.
You can control the multifunction display and the settings in the on-board computer using the buttons on the multifunction steering wheel.

1 Multifunction display
2 To switch on the Voice Control System; see the separate operating
instructions
3 Right control panel
4 Left control panel
5 Back button
See also:
Important safety notes
WARNING
Do not turn off the engine before the vehicle has come to a complete stop. With
the engine not running, there is no power assistance for the brake and steering
systems. In this case, ...
Redialing
The on-board computer saves the last names or numbers dialed in the redial memory.
Press the or
button on the steering wheel to
select the Tel menu.
Press the button to switch
to the ...
Performance
The nice thing about being able to afford the ML550 is the 382-horsepower V-8
under its hood. Calling this SUV "fast" is an understatement. Mercedes says it
goes from zero to 60 mph in 5 ...
