Instrument panel lighting
The instrument panel lighting illuminates when
the ignition key is in position II and the light
switch (1) is in either position 
Move the thumb wheel (4) up to increase brightness or down to decrease brightness.
See also:
Home safe and approach lighting
The light on the door mirrors comes on when
approach lighting or home safe lighting is
selected, see page 96. ...
The alarm system
The alarm is automatically armed whenever the
vehicle is locked with the remote key or
optional Personal Car Communicator.
When armed, the alarm continuously monitors
a number of points on the ...
Using the infotainment system
If the infotainment system is on when the ignition
is switched off, it will come on automatically
the next time the ignition is put in mode I
or higher and continue using the same source
(FM1, ...