Mercedes-Benz GLK 300 4MATIC 2012 Owner's Manual page 121

Replacing bulbs
118
Interior lighting control
General notes
In order to prevent the vehicle's battery from
discharging, the interior lighting functions are
automatically deactivated after some time
except for when the key is in position 2 in the
ignition lock.
Automatic interior lighting control
To activate/deactivate: press the |
X
button.
When the automatic interior lighting con-
trol is activated, the button is flush with the
overhead control panel.
The interior lighting automatically switches
on if you:
unlock the vehicle
R
open a door
R
remove the key from the ignition lock
R
The interior lighting is activated for a short
time when the key is removed from the igni-
tion lock. You can activate this delayed
switch-off using the on-board computer
( page 241).
Y
Manual interior lighting control
To switch the front interior lighting on/
X
off: press the c button.
To switch the rear interior lighting on/
X
off: press the u button.
To switch the reading lamps on/off:
X
press the p button.
Crash-responsive emergency lighting
The interior lighting is activated automatically
if the vehicle is involved in an accident.
To switch off the crash-responsive
X
emergency lighting: press the hazard
warning lamp button.
or
Lock and then unlock the vehicle using the
X
key.
Replacing bulbs
Important safety notes
Xenon bulbs
G
DANGER
Xenon bulbs are under high voltage. If you
touch the electrical contacts of a xenon bulb,
you could suffer an electric shock and be seri-
ously or even fatally injured. For this reason,
do not remove the cover of xenon bulbs.
Do not change the xenon bulbs yourself, but
have them replaced at a qualified workshop.
If your vehicle is equipped with xenon bulbs,
you can recognise this by the following: the
cone of light from the xenon bulbs moves
from the top to the bottom and back again
when you start the engine. For this to be
observed, the lights must be switched on
before starting the engine.
Bulbs and lamps are an important aspect of
vehicle safety. You must therefore make sure
that these function correctly at all times.
Have the headlamp setting checked regularly.
Other bulbs
G
WARNING
Bulbs and lamps can be very hot. You should
therefore allow them to cool down before you
change them. Otherwise, you could be burned
if you touch them.