2011 MERCEDES-BENZ GLK-Class windshield wipers

Cornering light function
The cornering light function improves the
illumination of the road over a wide angle in
the direction you are turning, enabling better
visibility in tight bends, for example. It can
only be activated when the low-beam
headlamps are switched on.
Active: if you are driving at speeds below
25 mph (40 km/h) and switch on the turn
signals or turn the steering wheel.
Not active: if you are driving at speeds above
25 mph (40 km/h) or switch off the turn
signal or turn the steering wheel to the
straight-ahead position.
The cornering light function may remain lit for
a short time, but is automatically switched off
after no more than three minutes.
Headlamps fogged up on the inside
The headlamps may fog up on the inside if
there is high atmospheric humidity.
XDrive with the headlamps switched on.
The headlamps clear up after a short
distance.
If the moisture does not disappear, the
headlamp casing is not sealed correctly and
moisture has been able to enter.
XHave the headlamps checked at a qualified
specialist workshop.Interior lighting
Overview of interior lighting
:u To switch the rear interior lighting
on/off
;| To switch the automatic interior
lighting control on/off
=p To switch the right-hand front
reading lamp on/off
?c To switch the front interior lighting
on/off
Ap To switch the left-hand front reading
lamp on/off
BFront reading lampsCFront interior lighting106Interior lightingLights and windshield wipers
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Rear-compartment overhead control panel
:p To switch the right-hand reading
lamp on/off
;p To switch the left-hand reading lamp
on/off
Interior lighting control
Important 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
XTo switch on/off: press the | button.
When the automatic interior lighting
control is activated, the button is flush with
the overhead control panel.
The interior lighting automatically switches
on if you:
Runlock the vehicle
Ropen a door
Rremove the key from the ignition lock
The interior light is activated for a short while
when the key is removed from the ignition
lock. You can activate this delayed switch-off
using the on-board computer (Y page 173).
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
If the interior lighting is set to automatic, 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
key.
Changing 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.
GWarning!
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.
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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
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.
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.
There are bulbs other than the Xenon bulbs
that you cannot replace. Replace only the
bulbs listed (Y page 108). 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.
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 W108Changing bulbsLights and windshield wipers
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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 W10?Tail lamp/rear fog lamp: P 21 WASide marker lamp: W 3 W
License plate lamp
:License plate lamp: W 5 W
Changing the front bulbs
Removing/installing the cover on top of
the headlamp
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.10Vehicles without LED turn signals (W 16 W)/vehicles with LED turn signals (P 21 W).Changing bulbs109Lights and windshield wipersBA 204.9 USA, CA Edition A 2011; 1; 6, en-USd2mwentsVersion: 3.0.3.62010-06-15T08:58:39+02:00 - Seite 109Z

Loosening/tightening 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 headlamp (halogen
headlamp)
XSwitch off the lights.XOpen the hood.XRemove the headlamp cover (Y page 109).XLeft-hand headlamp: detach the washer
fluid reservoir (Y page 110).
XTurn housing cover : counter-clockwise
and pull it out.
XPull connector ; from bulb ?.XDetach retaining spring = downwards.XPull out bulb ?.XInsert the new bulb.XAttach retaining spring =.XAttach connector ; to bulb ?.XPlace 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 109).
High-beam headlamps
XSwitch off the lights.XOpen the hood.XRemove the headlamp cover (Y page 109).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 ;.110Changing bulbsLights and windshield wipers
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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 109).
Standing lamps/parking lamps
XSwitch off the lights.XOpen the hood.XRemove the headlamp cover (Y page 109).XLeft-hand headlamp: detach the washer
fluid reservoir (Y page 110).
XTurn housing cover : counter-clockwise
and pull it out.
XPull out bulb holder ;.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 109).
Turn signal lamps/side marker lamps
XSwitch off the lights.XOpen the hood.XRemove the headlamp cover (Y page 109).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 signals and side marker
lamps): pull the bulb out of bulb holder :.
XPY 21 W (turn signals): turn the bulb
counter-clockwise, applying slight
pressure, and remove it from bulb
holder ;.
XWY 5 W (turn signals and side marker
lamps): insert the new bulb into bulb
holder :.
XPY 21 W: insert the new bulb into bulb
holder ; and turn it clockwise while
applying slight pressure.
XInsert bulb holder : or ; and turn it
clockwise.
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XLeft-hand headlamp: fasten the washer
fluid reservoir (Y page 110).
XInstall the headlamp cover (Y page 109).
Changing the rear bulbs
Opening/closing the side trim
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.
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/braking lamp ?Turn signals ABackup lamp BRear fog lamp/tail lamp CSide 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.
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XInsert the connector.XClose the side trim panel (Y page 112).
License plate lamp
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
Important safety notes
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/rear
window can scratch the glass if wiping
takes place when the windshield/rear
window is dry.
If it is necessary to switch on the windshield
wipers in dry weather conditions, always
use washer fluid when operating the
windshield wipers.
! If the windshield wipers leave smears on
the windscreen 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.
Switching the windshield wipers on/
off
Combination switch
1$ Windshield wipers off2Ä Intermittent wipe, low113Å Intermittent wipe, high124° Continuous wipe, slow5¯ Continuous wipe, fastBí Single wipe/ î to wipe the
windshield using washer fluid
XSwitch the ignition on.XTurn the combination switch to the
corresponding position.
iWhen you stop the vehicle, the wipers
wipe more slowly.
11Rain sensor set to low sensitivity.12Rain sensor set to high sensitivity.
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