Locking the vehicle (mechanical key)
If the vehicle can no longer be locked with the SmartKey, use the mechanical key.
Open the driver's door.
Close the front-passenger door, the
rear doors and the trunk lid.
Press the locking button.
Check whether the locking knobs on
the front-passenger door and the rear doors are still visible. Press down the
locking knobs by hand, if necessary.
Close the driver's door.
Take the mechanical key out of the
SmartKey.
Insert the mechanical key into the
lock of the driver's door as far as it will go.

Turn the mechanical key
clockwise as far as it will go to position 1.
Turn the mechanical key back and
remove it.
Make sure that the doors and the
trunk lid are locked.
Insert the mechanical key into the
SmartKey.
If you lock the vehicle as
described above,
the fuel filler flap is not locked. The antitheft
alarm system is not armed.
See also:
Control panel for dual-zone automatic climate control
Canada only
1. To activate/deactivate air-recirculation mode
2. To defrost the windshield
3. To switch the ZONE function on/off
4. Display
5. To set climate control to automatic
...
System self-test
The indicator lamp illuminates
when you:
• turn the SmartKey to position 1 or 2 in the ignition lock
• on vehicles with KEYLESS-GO, press the Start/Stop button once or twice
If an adult occupant ...
Overview
The new Mercedes-Benz C-Class will be launched in spring 2011 and is a
comprehensive modernisation. The front and rear sections of this best selling
model have a more striking design. There is now ...
