2012 MERCEDES-BENZ GLK-Class light

Manual interior lighting controlXTo switch the front interior lighting on/
off: press the c button.XTo switch the rear interior lighting on/
off: press the v button.XTo switch the reading lamps on/off:
press the p button.
Crash-responsive emergency lighting
The interior lighting is activated automatically
if the vehicle is involved in an accident.
XTo switch off the crash-responsive
emergency lighting: press the hazard
warning lamp button.
or
XLock and then unlock the vehicle using the
SmartKey.
Replacing bulbs
Important safety notes
Xenon bulbs
If your vehicle is equipped with Xenon bulbs,
you can recognize 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.
GDANGER
Xenon bulbs carry a high voltage. You could
get an electric shock and be seriously or even
fatally injured if you touch the electric
contacts on Xenon bulbs. Therefore, never
remove the cover from Xenon bulbs.
Do not change Xenon bulbs yourself, but have
them replaced at a qualified specialist
workshop which has the necessary specialist
knowledge and tools to carry out the work
required.
Mercedes-Benz recommends that you use an
authorized Mercedes-Benz Center for this
purpose. In particular, work relevant to safety
or on safety-related systems must be carried
out at a qualified specialist workshop.
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
There are bulbs other than the Xenon bulbs
that you cannot replace. Replace only the
bulbs listed (Y page 109). Have the bulbs that
you cannot replace yourself changed at a
qualified specialist workshop.
Mercedes-Benz recommends that you use an
authorized Mercedes-Benz Center for this
purpose. In particular, work relevant to safety
or on safety-related systems must be carried
out at a qualified specialist workshop.
If you require assistance changing bulbs,
consult a qualified specialist workshop.
Do not touch the glass tube of new bulbs with
your bare hands. Even minor contamination
can burn into the glass surface and reduce
the service life of the bulbs. Always use a lint-
free cloth or only touch the base of the bulb
when installing.
Only use bulbs of the correct type.
If the new bulb still does not light up, consult
a qualified specialist workshop.
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.
GWARNING
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.
Keep bulbs out of the reach of children.
Otherwise, they could damage the bulbs, for
example, and injure themselves.
108Replacing bulbsLights and windshield wipers

Never use a bulb which has been dropped.
Such a bulb may break or even explode and
injure you.
Halogen bulbs are pressurized and can
explode when you change them, particularly
if they are very hot. You should therefore wear
eye protection and gloves when you are
changing them.
Overview: changing bulbs/bulb types
You can change the following bulbs. The bulb
type can be found in the legend.
Halogen headlamps
:Turn signal lamp/side marker lamp:
WY 5 W;Turn signal lamp: PY 21 W=High-beam headlamp: H7 55 W?Parking lamp/standing lamp: W 5 WALow-beam headlamp: H7 55 W
Bi-Xenon headlamps
:Turn signal lamp/side marker lamp:
WY 5 W;Turn signal lamp: PY 21 W=Cornering lamp: H7 55 W?Parking lamp/standing lamp: W 5 W
Tail lamp with/without LED
:Tail lamp/brake lamp: P 21 W;Turn signal lamp: PY 21 W=Backup lamp: P 21 W or W 16 W 11?Tail lamp/rear fog lamp: P 21 WASide marker lamp: W 3 W11
Vehicles without LED turn signal lamps (W 16 W)/vehicles with LED turn signal lamps (P 21 W).Replacing bulbs109Lights and windshield wipersZ

License plate lamp
:License plate lamp: W 5 W
Changing the front bulbs
Removing/installing the headlamp
cover
You must remove the headlamp cover in the
engine compartment before you can replace
the bulbs in the headlamp.
XTo remove: press retaining clip : in the
direction of the arrow.XPull cover ; forward underneath
cover = and remove.XTo install: slide cover ; under cover =.
Connect the two covers by inserting the
tongue into the groove.XPress cover ; until retaining clip :
engages.Removing/attaching the washer fluid
reservoir
You must remove the washer fluid reservoir
from the engine compartment before you can
replace the bulbs in the left-hand headlamp.
XTo detach: turn catch ; counter-
clockwise.XSwing washer fluid reservoir : far enough
to the side to allow the bulbs of the
headlamp to be replaced.XTo attach: swing back washer fluid
reservoir :.XTurn catch ; clockwise.
Low-beam headlamps (halogen
headlamps)
XSwitch off the lights.XOpen the hood.XRemove the headlamp cover (Y page 110).XLeft-hand headlamp: detach the washer
fluid reservoir ( Y page 110).110Replacing bulbsLights and windshield wipers

XTurn housing cover : counter-clockwise
and pull it out.XPull connector ; from bulb ?.XUnclip retaining spring = and fold it down.XPull out bulb ?.XInsert the new bulb.XClip retaining spring = back in.XAttach connector ; to bulb ?.XAttach housing cover : and turn it
clockwise until it engages.XLeft-hand headlamp: fasten the washer
fluid reservoir ( Y page 110).XInstall the headlamp cover ( Y page 110).
High-beam headlamps (halogen
headlamps)
XSwitch off the lights.XOpen the hood.XRemove the headlamp cover (Y page 110).XLeft-hand headlamp: detach the washer
fluid reservoir ( Y page 110).XTurn housing cover : counter-clockwise
and pull it out.XPress the handle of bulb holder ; in the
direction of the arrow until bulb holder ;
is released.XTake out the handle with bulb holder ;.XTake the bulb out of bulb holder ;.XInsert the new bulb into bulb holder ;.
Lug = of the bulb must be pointing
upward.XInsert bulb holder ;.XPush the handle of bulb holder ; in the
opposite direction from the arrow until
holder ; engages.XAlign housing cover : and turn it
clockwise until it engages.XLeft-hand headlamp: fasten the washer
fluid reservoir ( Y page 110).XInstall the headlamp cover ( Y page 110).
Parking lamp/standing lamp
XSwitch off the lights.XOpen the hood.XRemove the headlamp cover (Y page 110).XLeft-hand headlamp: detach the washer
fluid reservoir ( Y page 110).XTurn housing cover : counter-clockwise
and pull it out.XPull out bulb holder ;.Replacing bulbs111Lights and windshield wipersZ

XTake the bulb out of bulb holder ;.XInsert the new bulb into bulb holder ;.XInsert bulb holder ;.XAlign housing cover : and turn it
clockwise until it engages.XLeft-hand headlamp: fasten the washer
fluid reservoir ( Y page 110).XInstall the headlamp cover ( Y page 110).
Turn signal lamps/side marker lamps
XSwitch off the lights.XOpen the hood.XRemove the headlamp cover (Y page 110).XLeft-hand headlamp: detach the washer
fluid reservoir ( Y page 110).XTurn bulb holder : or ; counter-
clockwise and pull it out.XWY 5 W (turn signal lamp and side marker
lamp): remove the bulb from bulb
holder :.XPY 21 W (turn signal lamp): turn the bulb
counter-clockwise, applying slight
pressure, and remove it from bulb
holder ;.XWY 5 W (turn signal lamp and side marker
lamp): insert the new bulb into bulb
holder :.XPY 21 W (turn signal lamp): insert the new
bulb into bulb holder ; and turn it
clockwise while applying slight pressure.XInsert bulb holder : or ; and turn it
clockwise.XLeft-hand headlamp: fasten the washer
fluid reservoir ( Y page 110).XInstall the headlamp cover ( Y page 110).
Changing the rear bulbs
Opening and closing the side trim
panels
You must open the side trim panel in the
cargo compartment before you can change
the bulbs in the tail lamps.
Left-hand side trim panel
Right-hand side trim panel
XTo open: turn release knob : 90° in the
direction of the arrow and remove side trim
panel ;.XTo close: insert side trim panel ; and turn
release knob : 90° in the opposite
direction to the arrow.112Replacing bulbsLights and windshield wipers

Tail lampXSwitch off the lights.XOpen the cargo compartment.XOpen the side trim panel (Y page 112).XPull out connector ;.XPress retaining lugs : simultaneously in
the direction of the arrow and pull the bulb
holder out.
Bulb holder without LED turn signal lamp
=Tail lamp/brake lamp?Turn signalsABackup lampBRear fog lamp/tail lampCSide marker lampXLightly press the corresponding bulb into
the holder, turn it counter-clockwise and
remove it from the bulb holder.XInsert the corresponding new bulb into the
bulb holder and turn it clockwise.XAttach the bulb holder and press firmly.
The retaining lugs on the bulb holder
engage audibly.XInsert the connector.XClose the side trim panel ( Y page 112).
License plate lamps
XSwitch off the lights.XOpen the tailgate.XPress lug ; of license plate lamp : in the
direction of the arrow and remove license
plate lamp lens :.XRemove license plate lamp lens :.XReplace the bulb.XInsert license plate lamp lens : and press
it in until it engages.
Windshield wipers
Switching the windshield wipers on/
off
GWARNING
Wiper blades are components that are subject
to wear and tear. Replace the wiper blades
twice a year, preferably in the spring and fall.
Otherwise the windows will not be wiped
properly. As a result, you may not be able to
observe surrounding traffic conditions and
could cause an accident.
! Do not operate the windshield wipers
when the windshield is dry, as this could
damage the wiper blades. Moreover, dust
that has collected on the windshield can
scratch the glass if wiping takes place when
the windshield is dry.
Windshield wipers113Lights and windshield wipersZ

! If the windshield wipers leave smears on
the windshield after the vehicle has been
washed in an automatic car wash, wax or
other residues may be the reason for this.
Clean the windshield using washer fluid
after washing the vehicle in an automatic
car wash.
Combination switch
1$ Windshield wipers off2Ä Intermittent wipe, low 123Å
Intermittent wipe, high 134°
Continuous wipe, slow5¯ Continuous wipe, fastBí Single wipe/ î To wipe the
windshield using washer fluidXSwitch on the ignition.XTurn the combination switch to the
corresponding position.
! Vehicles with a rain sensor: if the
windshield becomes dirty in dry weather
conditions, the windshield wipers may be
activated inadvertently. This could then
damage the windshield wiper blades or
scratch the windshield.
For this reason, you should always switch
off the windshield wipers in dry weather.
Vehicles with a rain sensor: in the Ä or
Å position, the appropriate wiping
frequency is automatically set according to
the intensity of the rain. In the Å position,
the rain sensor is more sensitive than in
the Ä position, causing the windshield
wipers to wipe more frequently.
Switching the rear window wiper on/
off
Combination switch
:è Switch2ô To wipe with washer fluid3I To switch on intermittent wiping40 To switch off intermittent wiping5ô To wipe with washer fluidXTurn the SmartKey to position 1 or 2 in the
ignition lock.XTurn switch : on the combination switch
to the corresponding position.
When the rear window wiper is switched on,
the icon appears in the instrument cluster.
Replacing the wiper blades
Important safety notes
GWARNING
For safety reasons, switch off the windshield
wipers and remove the key from the ignition
lock before changing the wiper blades
(vehicles with KEYLESS-GO: make sure that
the on-board electronics are in state 0).
Otherwise, the wiper motor could be switched
on suddenly and cause injury.
12 Rain sensor set to low sensitivity.
13 Rain sensor set to high sensitivity.114Windshield wipersLights and windshield wipers

! To avoid damaging the wiper blades,
make sure that you touch only the wiper
arm of the wiper.
! Never open the hood if a windshield wiper
arm has been folded away from the
windshield.
Never fold a windshield wiper arm without
a wiper blade back onto the windshield/
rear window.
Hold the windshield wiper arm firmly when
you change the wiper blade. If you release
the windshield wiper arm without a wiper
blade and it falls onto the windshield, the
windshield may be damaged by the force of
the impact.
Mercedes-Benz recommends that you have
the wiper blades replaced by a qualified
specialist workshop, e.g. at an authorized
Mercedes-Benz Center.
Replacing the windshield wiper blades
Removing the wiper blades
! Before changing the wiper blades, always
set the wiper arms to a vertical position
using the combination switch. There is
otherwise a risk of damaging the hood.
Moving the wiper blades to a vertical
position
Vehicles without KEYLESS-GO
XTurn the SmartKey to position 1 or 2 in the
ignition lock.XSet the windshield wipers to
position °.XWhen the wiper arms have reached a
vertical position, turn the SmartKey to
position 0 and remove it from the ignition
lock.
Vehicles with KEYLESS-GO
XSwitch off the engine.XRemove your foot from the brake pedal.XSet the windshield wipers to
position °.XPress the Start/Stop button repeatedly
until the windshield wipers start.XWhen the wiper arms have reached a
vertical position, press the Start/Stop
button.
Removing the wiper blades
XFold the wiper arm away from the
windshield until it engages.XSet the wiper blade at right angles to the
wiper arm.XRemove the wiper blade from the retaining
pin on the wiper arm in the direction of the
arrow.
Installing the wiper blades
XPush the new wiper blade onto the
retaining pin on the wiper arm in the
opposite direction to the arrow.
Make sure that the wiper blade slides fully
onto the retaining pin on the wiper arm.XTurn the wiper blade parallel to the wiper
arm.XFold the wiper arm back onto the
windshield.Windshield wipers115Lights and windshield wipersZ