warning MERCEDES-BENZ GLK SUV 2012 Repair Manual

The electrical steering wheel adjustment fea-
ture can be operated at any time. Therefore,
do not leave children unattended in the vehi-
cle, or with access to an unlocked vehicle. A
child's unsupervised access to a vehicle could
result in an accident and/or serious personal
injury. Adjusting the steering wheel man-
ually
:
Release lever
; To adjust the steering wheel height
= To adjust the steering wheel position
(fore-and-aft adjustment)
X Push release lever :down completely.
The steering column is unlocked.
X Adjust the steering wheel to the desired
position.
X Push release lever :up completely.
The steering column is locked.
X Check if the steering column is locked.
When doing so, try to push the steering
wheel up or down or try to move it in the
fore-and-aft direction. Adjusting the steering wheel electri-
cally
:
To adjust the steering wheel height
; To adjust the steering wheel position
(fore-and-aft adjustment)
i Further related subjects:
R EASY-ENTRY/EXIT feature
(Y page 102)
R Storing settings (Y page 106) EASY-ENTRY/EXIT feature
Important safety notes G
WARNING
Make sure that nobody can become trapped
when you activate the EASY-ENTRY/EXIT fea-
ture.
If there is a risk of someone becoming trap-
ped, stop the adjustment procedure. To halt
the procedure:
R press the steering column adjustment but-
ton.
R briefly press one of the memory function
position buttons.
The steering column stops moving immedi-
ately.
Do not keep the memory function position
button pressed down, otherwise the memory
function will start and the steering wheel and
seat will begin to move.
Never leave children unsupervised in the vehi-
cle. They could open the driver's door and 102
Steering wheelSeats, steering wheel and mirrors

thereby unintentionally activate the EASY-
ENTRY feature and become trapped.
The EASY-ENTRY/EXIT feature makes getting
in and out of your vehicle easier.
You can activate and deactivate the EASY-
ENTRY/EXIT feature in the on-board com-
puter (Y page 243).
Position of the steering wheel when the
EASY-ENTRY/EXIT feature is active The steering wheel tilts upwards if you:
R remove the key from the ignition lock
R open the driver's door and KEYLESS-GO is
in position 1
R open the driver's door and the key is in
position 0or 1in the ignition lock
i The steering wheel only moves upwards if
it has not already reached the upper end
stop.
Position of the steering wheel for driv-
ing The steering wheel is moved to the previously
set position if:
R the driver's door is closed and
R you insert the key into the ignition lock
or
R you press the Start/Stop button once on
vehicles with KEYLESS-GO.
If you close the driver's door with the key
inserted into the ignition lock, the steering
wheel is automatically moved to the previ-
ously set position.
The last position of the steering wheel is
stored when you switch off the ignition or
when you store the setting with the memory
function ( Ypage 106).
Crash-responsive EASY-EXIT feature If the crash-responsive EASY-EXIT feature is
triggered in an accident, the steering column
will move upwards when the driver's door is opened. This occurs irrespective of the posi-
tion of the key in the ignition lock. This makes
it easier to exit the vehicle and rescue the
occupants.
The crash-responsive EASY-EXIT feature is
only operational if the EASY-EXIT/ENTRY fea-
ture is activated in the on-board computer. Mirrors
Rear-view mirror
X
Anti-dazzle mode: flick anti-dazzle
switch :forwards or back. Exterior mirrors
Adjusting the exterior mirrors G
WARNING
The exterior mirrors reduce the size of the
image. Objects are actually closer than they
appear. You could misjudge the distance from
vehicles driving behind and cause an acci-
dent, e.g. when changing lane. For this rea-
son, make sure of the actual distance from the
vehicle driving behind by glancing over your
shoulder.
The convex exterior mirrors provide a larger
field of vision.
The exterior mirrors are automatically heated
after starting the vehicle if the rear window
heating is switched on and the outside tem-
perature is low. Mirror heating lasts up to 10
minutes. Mirrors
103Seats, steering wheel and mirrors Z

the mirrors engage in position.
(Y
page 104)
The mirror housing is engaged again and
you can adjust the exterior mirrors as usual
(Y page 103). Automatic anti-dazzle mirrors
G
WARNING
If incident light from headlamps is prevented
from striking the sensor in the rear-view mir-
ror, for instance, by luggage piled too high in
the vehicle, the mirror's automatic anti-dazzle
function will not operate.
Incident light could then blind you. This may
distract you from the traffic conditions and,
as a result, you may cause an accident.
The rear-view mirror and the exterior mirror
on the driver's side automatically go into anti-
dazzle mode if the following conditions are
met simultaneously:
R the ignition is switched on and
R incident light from headlamps strikes the
sensor in the rear-view mirror.
The mirrors do not go into anti-dazzle mode if
reverse gear is engaged or if the interior light-
ing is switched on. Parking position for the exterior mir-
ror on the front-passenger side
Setting and storing the parking position Using reverse gear
You can set the front-passenger side exterior
mirror so that you can see the rear wheel on
that side as soon as you engage reverse gear.
You can store this position. X
Make sure that the vehicle is stationary and
that the key is in position 2in the ignition
lock.
X Press button ;for the exterior mirror on
the front-passenger side.
X Engage reverse gear.
The exterior mirror on the front-passenger
side moves to the preset parking position.
X Use adjustment button =to adjust the
exterior mirror to a position that allows you
to see the rear wheel and the kerb.
The parking position is stored.
i If you shift the transmission to another
position, the exterior mirror on the front-
passenger side returns to the driving posi-
tion.
Using the memory button
You can set the front-passenger side exterior
mirror so that you can see the rear wheel on
that side as soon as you engage reverse gear.
This setting can be stored using memory but-
ton M?.
X Make sure that the key is in position 2in
the ignition lock.
X With the exterior mirror on the front-
passenger side activated, use adjustment
button =to adjust the exterior mirror. In
the exterior mirror, the rear wheel and the
kerb should be visible. Mirrors
105Seats, steering wheel and mirrors Z

X
Press memory button M? and one of the
arrows on adjustment button =within
three seconds.
The parking position is stored if the exterior
mirror does not move.
X If the mirror moves out of position, repeat
the steps.
Calling up a stored parking position set-
ting X
Turn the key to position 2in the ignition
lock.
X Adjust the exterior mirror on the front-
passenger side using button ;.
X Engage reverse gear.
The exterior mirror on the front-passenger
side moves to the stored parking position.
The exterior mirror on the front-passenger
side moves back to its original position:
R as soon as you exceed a speed of
15 km/h
R if you press button :for the exterior mir-
ror on the driver's side Memory function
Storing settings
G
WARNING
Only use the memory function on the driver's
side when the vehicle is stationary. You could
otherwise be distracted from the traffic con-
ditions by the steering wheel and seat moving
of their own accord, and as a result, cause an
accident. G
WARNING
The memory function can still be used when
the key has been removed. For this reason,
children should never be left unsupervised in
the vehicle. They could otherwise become
trapped when adjusting the seat or the steer-
ing wheel. With the memory function, you can store up
to three different settings, e.g. for three dif-
ferent people.
The following settings are stored as a single
memory preset:
R position of the seat, backrest and head
restraint
R driver's side: steering wheel position
R driver's side: position of the exterior mir-
rors on the driver's and front-passenger
sides X
Adjust the seat (Y page 98).
X On the driver's side, adjust the steering
wheel (Y page 102) and the exterior mirrors
(Y page 103).
X Briefly press the Mmemory button and
then press storage position button 1,2or
3 within three seconds.
The settings are stored in the selected pre-
set position. A tone sounds when the set-
tings have been completed. Calling up a stored setting
! If you want to move the seat from the fully
reclined position to a stored seat position,
first raise the backrest. The seat could oth-
erwise be damaged.
X Press and hold the relevant storage posi-
tion button 1,2or 3until the seat, steering
wheel and exterior mirrors are in the stored
position. 106
Memory functionSeats, steering wheel and mirrors

wheel) or (Y
page 239) (vehicles with a 12-
button multifunction steering wheel)
Light switch Operation
1W
Left-hand parking lamps
2X Right-hand parking lamps
3T Side lamps, licence plate and instru-
ment cluster lighting
4Ã Automatic headlamp mode, control-
led by the light sensor
5L Dipped-beam/main-beam head-
lamps
BR Rear foglamp
CN Foglamp (only vehicles with front
foglamps)
If you hear a warning tone when you leave the
vehicle, the lights may still be switched on.
X Turn the light switch to Ã.
The exterior lighting (except the side lamps/
parking lamps) switches off automatically if
you:
R remove the key from the ignition lock
R open the driver's door with the key in posi-
tion 0
Automatic headlamp mode G
WARNING
If the light switch is set to Ãand it is foggy,
snowing or there is poor visibility, the dipped-
beam headlamps will not come on automati- cally. This could endanger you and others. In
such situations turn the light switch to
L.
The automatic headlamp feature is only an
aid. The driver is responsible for the vehicle's
lighting at all times.
à is the preferred light switch setting. The
light setting is automatically selected accord-
ing to the brightness of the ambient light
(exception: poor visibility due to weather con-
ditions such as fog, snow or spray):
R Key in position 1in the ignition lock: the
side lamps are switched on or off automat-
ically depending on the brightness of the
ambient light.
R With the engine running: if you have acti-
vated the daytime driving lights function via
the on-board computer, the daytime driving
lights or the dipped-beam headlamps and
side lamps are switched on or off automat-
ically depending on the brightness of the
ambient light.
X To switch on automatic headlamp
mode: turn the light switch to Ã.
The daytime driving lights improve the visibil-
ity of your vehicle during the day. The "day-
time driving lights" should also be switched
on using the on-board computer
(Y page 227) (vehicles with a 4-button mul-
tifunction steering wheel) or (Y page 239)
(vehicles with a 12-button multifunction
steering wheel).
When the dipped-beam headlamps are
switched on, the Lindicator lamp in the
instrument cluster lights up and the daytime
driving lights switch off.
Dipped-beam headlamps G
WARNING
If the light switch is set to Ãand it is foggy,
snowing or there is poor visibility, the dipped-
beam headlamps will not come on automati-
cally. This could endanger you and others. In
such situations turn the light switch to L. Exterior lighting
111Lights and windscreen wipers
Z

Hazard warning lamps
The hazard warning lamps automatically
switch on if:
R an airbag is deployed.
R the vehicle decelerates rapidly from a
speed of more than 70 km/h and comes to
a standstill.
X To switch on the hazard warning lamps:
press button :.
All turn signals flash. If you now switch on
a turn signal using the combination switch,
only the turn signal lamp on the corre-
sponding side of the vehicle will flash.
X To switch off the hazard warning
lamps: press button :.
The hazard warning lamps switch off auto-
matically if the vehicle reaches a speed of
over 10 km/h again after a full brake appli-
cation.
i The hazard warning lamps still operate if
the ignition is switched off. Headlamp cleaning system
The headlamps are cleaned automatically if
the "Wipe with washer fluid" function is oper-
ated five times while the lights are on and the
engine is running (Y page 122). When you
switch off the ignition, the automatic head-
lamp cleaning system is reset and counting is
resumed from 0. Intelligent Light System
General notes The Intelligent Light System is a system that
adjusts the headlamps automatically to suit
the prevailing driving and weather conditions.
It offers advanced functions for improved illu-
mination of the road surface, e.g. depending
on the vehicle speed or weather conditions.
The system includes the active light function,
cornering light function, motorway mode and
extended range foglamps. The system is only
active when it is dark.
You can activate or deactivate the "Intelligent
Light System" using the on-board computer
(Y
page 240).
Active light function The active light function is a system that
moves the headlamps according to the steer-
ing movements of the front wheels. In this
way, relevant areas remain illuminated while
driving. This allows you to recognise pedes-
trians, cyclists and animals.
Active: when the lights are switched on. 114
Exterior lightingLights and windscreen wipers

When the Off-road-Lights are switched on,
the active light function is deactivated and
the headlamp range adjustment is set to the
static mode. Adaptive Highbeam Assist
G
WARNING
Adaptive Highbeam Assist is only an aid
designed to assist driving. The driver is
responsible for adjusting the vehicle's lighting
to the prevailing light, vision and traffic con-
ditions.
The system may be impaired or deactivated:
R if there is poor visibility, e.g. due to snow,
rain, fog or spray
R if the area of the windscreen around the
optical sensor is dirty, misted up or covered
up, e.g. by a sticker
The system may not recognise the following
road users:
R road users that have no lighting, e.g. pedes-
trians
R road users that have poor lighting, e.g.
cyclists
R road users whose lighting is not clearly visi-
ble, e.g. road users behind a crash barrier
R on rare occasions: road users that have
lights that may be recognised too late or not
at all
The automatic main-beam headlamps will not
be deactivated, or they may be activated
despite road users travelling in front of or
approaching the vehicle.
Thus, you could cause an accident and injure
yourself and others. Always observe traffic
conditions and, if necessary, dip the lights
manually.
You can use this function to set the head-
lamps to change between dipped beam and
main beam automatically. The system recog-
nises vehicles with their lights on, either
approaching from the opposite direction or
travelling in front of your vehicle, and conse- quently switches the headlamps from main
beam to dipped beam.
The system automatically adapts the dipped-
beam headlamp range depending on the dis-
tance to the other vehicle. Once the system
no longer detects any other vehicles, it reac-
tivates the main-beam headlamps.
The system's optical sensor is located behind
the windscreen near the overhead control
panel. X
To activate: activate the Adaptive High-
beam Assist function using the on-board
computer (Y page 240).
X Turn the light switch to Ã.
X Press the combination switch beyond the
pressure point in the direction of arrow :
(Y page 113).
If it is dark and the light sensor activates
the dipped-beam headlamps, the _
indicator lamp in the instrument cluster
lights up.
If you are driving at speeds above
45 km/h:
the headlamp range is set automatically
depending on the distance between the
vehicle and other road users.
If you are driving at speeds above
55 km/h and no other road users are rec-
ognised: 116
Exterior lightingLights and windscreen wipers

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 2in the
ignition lock.
Automatic interior lighting control X
To activate/deactivate: press the|
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:
R unlock the vehicle
R open a door
R remove the key from the ignition lock
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
(Y page 241).
Manual interior lighting control X
To switch the front interior lighting on/
off: press the cbutton.
X To switch the rear interior lighting on/
off: press the ubutton.
X To switch the reading lamps on/off:
press the pbutton. Crash-responsive emergency lighting
The interior lighting is activated automatically
if the vehicle is involved in an accident.
X To switch off the crash-responsive
emergency lighting: press the hazard
warning lamp button.
or
X Lock and then unlock the vehicle using the
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. 118
Replacing bulbsLights and windscreen wipers

X
Pull out connector :.
X Turn wing nut ;90° anti-clockwise and
pull out the bulb holder. X
Turn signal :
:: lightly press the bulb into
the bulb holder, turn it anti-clockwise and
remove it from bulb holder.
X Insert the new bulb into the bulb holder and
turn it clockwise.
X Reversing lamp ; ;:remove the bulb from
bulb holder.
X Insert the new bulb into the bulb holder.
X Refit bulb holder.
X Turn wing nut 90° clockwise.
X Insert the connector.
X Close the side trim panel (Y page 121).Windscreen wipers
Switching the windscreen wipers on/
off G
WARNING
The windscreen will not longer be wiped prop-
erly if the wiper blades are worn. This could
prevent you from observing the traffic condi-
tions, thereby causing an accident. Replace
the wiper blades twice a year, ideally in spring
and autumn.
! Do not operate the windscreen wipers
when the windscreen is dry, as this could damage the wiper blades. Moreover, dust
that has collected on the windscreen can
scratch the glass if wiping takes place when
the windscreen is dry.
! If the windscreen wipers leave smears on
the windscreen after the vehicle has been
washed in an automatic car wash, this may
be due to wax or other residue. Clean the
windscreen with washer fluid after an auto-
matic car wash. Combination switch
1
$ Windscreen wipers off
2 Ä Intermittent wipe, low 8
3 Å Intermittent wipe, high 9
4 ° Continuous wipe, slow
5 ¯ Continuous wipe, fast
B í Single wipe/ îto wipe the wind-
screen using washer fluid
X Turn the key to position 1or 2in the ignition
lock.
X Turn the combination switch to the corre-
sponding position.
! Vehicles with a rain sensor: if the wind-
screen becomes dirty in dry weather con-
ditions, the windscreen wipers may be acti-
vated inadvertently. This could damage the
windscreen wiper blades or scratch the
windscreen.
For this reason, you should always switch
off the windscreen wipers in dry weather.
8 Rain sensor set to low sensitivity.
9 Rain sensor set to high sensitivity. 122
Windscreen wipersLights and windscreen wipers

Switching the rear window wiper on/
off Combination switch
:
è Switch
2 ô To wipe with washer fluid
3 ITo switch on intermittent wiping
4 0To switch off intermittent wiping
5 ô To wipe with washer fluid
X Turn the key to position 1or 2in the ignition
lock.
X Turn switch :on the combination switch
to the corresponding position.
When the rear window wiper is switched on,
the symbol appears in the instrument clus-
ter. Replacing the wiper blades
Important safety notes G
WARNING
The wiper arms could start moving and cause
an injury if you leave the windscreen wipers
switched on.
Remove the key from the ignition lock before
replacing the wiper blades.
! Never open the bonnet/tailgate if a wiper
arm is folded away from the windscreen/
rear window.
Never fold a windscreen wiper arm without
a wiper blade back onto the windscreen/
rear window. Hold the windscreen wiper arm firmly when
you change the wiper blade. If you release
the wiper arm without a wiper blade and it
falls onto the windscreen/rear window, the
windscreen/rear window may be damaged
by the force of the impact.
Mercedes-Benz recommends that you have
the wiper blades changed at a qualified
specialist workshop.
! To avoid damaging the windscreen wiper
blades, make sure that you touch only the
wiper arm of the windscreen wiper.
Replacing the windscreen wiper blades Moving the wiper blades to a vertical posi-
tion
!
Before changing the wiper blades, always
set the wiper arms to a vertical position
using the combination switch. There is oth-
erwise a risk of damaging the bonnet.
Vehicles without KEYLESS-GO
X Turn the key to position 1or 2in the ignition
lock.
X Set the windscreen wipers to posi-
tion °.
X When the wiper arms have reached a ver-
tical position, turn the key to position 0and
remove it from the ignition lock.
Vehicles with KEYLESS-GO
X Switch off the engine.
X Remove your foot from the brake pedal.
X Set the windscreen wipers to posi-
tion °.
X Press the Start/Stop button repeatedly
until the windscreen wipers start.
X When the wiper arms have reached a ver-
tical position, press the Start/Stop button.
Removing the wiper blades
X Fold the wiper arm away from the wind-
screen until it engages.
X Set the wiper blade at right angles to the
wiper arm. Windscreen wipers
123Lights and windscreen wipers Z