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. Right control panel
3. To switch on the Voice Control System;
see the separate operating instructions
4. Back button
5. Left control panel
See also:
Replacing the rear window wiper blade
Removing the wiper blade
► Remove the SmartKey from the ignition
lock.
► Fold wiper arm 1 away from the rear
window until it engages.
► Position wiper blade 2 at a right angle ...
Please bear the following in mind
At the onset of winter, have your vehicle
winterproofed at a qualified specialist
workshop, e.g. at an authorized Mercedes-
Benz Center.
Observe the notes in the "Changing a wheel"
...
Locking and unlocking centrally
The SmartKey centrally locks/unlocks:
- the doors
- the trunk lid/tailgate
- the fuel filler flap
When unlocking, the turn signals flash once.
When locking, they flash three times
When ...
