2015 MERCEDES-BENZ GLK-Class Owner's Manual

High-beam headlamps
X
To switch on the high-beam headlamps:
turn the SmartKey in the ignition lock to
position 2or start the engine.
X Turn the light switch to 0058or0058.
X Press the combination switch beyond the
pressure point in the direction of arrow 0043.
In the 0058position, the high-beam head-
lamps are only switched on when it is dark
and the engine is running.
The 0057 indicator lamp in the instrument
cluster lights up when the high-beam head-
lamps are switched on.
X To switch off the high-beam head-
lamps: move the combination switch back
to its normal position.
The 0057 indicator lamp in the instrument
cluster goes out.
High-beam flasher X
To switch on: turn the SmartKey in the
ignition lock to position 1or 2or start the
engine.
X Pull the combination switch in the direction
of arrow 0087. Hazard warning lamps The hazard warning lamps automatically
switch on if:
R an air bag is deployed.
R the vehicle is slowed down rapidly from a
speed of over 45 mph (70 km/h) and
comes to a halt.
X To switch on the hazard warning lamps:
press button 0043.
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 0043.
If the vehicle returns to a speed of over
6 mph (10 km/h) after a full application of the
brakes, the hazard warning lamps are deacti-
vated automatically.
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 126). When you
switch off the ignition, the automatic head-
lamp cleaning system is reset and counting is resumed from 0. Active light function Exterior lighting
119Lights and windshield wipers Z

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 recognize pedes-
trians, cyclists and animals.
Active: when the lights are switched on. Cornering light function
The cornering light function improves the illu-
mination of the road over a wide angle in the direction you are turning, enabling better vis-
ibility in tight bends, for example. The corner- ing light function can only be activated when
the low-beam headlamps are switched on.
Active:
R if you are driving at speeds below 25 mph
(40 km/h) and switch on the turn signal or
turn the steering wheel
R if you are driving at speeds between
25 mph (40 km/h) and 45 mph (70 km/h)
and turn the steering wheel
The cornering lamp may remain lit for a short
time, but is automatically switched off after
no more than three minutes. Adaptive Highbeam Assist
General notes You can use this function to set the head-
lamps to change between low beam and high beam automatically. The system recognizes
vehicles with their lights on, either approach- ing from the opposite direction or traveling in
front of your vehicle, and consequently
switches the headlamps from high beam to
low beam.
The system automatically adapts the low-
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 high-beam headlamps.
The system's optical sensor is located behind
the windshield near the overhead control
panel. Important safety notes
G
WARNING
Adaptive Highbeam Assist does not recognize road users:
R who have no lights, e.g. pedestrians
R who have poor lighting, e.g. cyclists
R whose lighting is blocked, e.g. by a barrier
In very rare cases, Adaptive Highbeam Assist
may fail to recognize other road users that
have lights, or may recognize them too late. In this or similar situations, the automatic high-
beam headlamps will not be deactivated or
activated regardless. There is a risk of an acci-
dent. 120
Exterior lightingLights and windshield wipers

Always carefully observe the traffic conditions
and switch off the high-beam headlamps in
good time.
Adaptive Highbeam Assist cannot take into
account road, weather or traffic conditions.
Adaptive Highbeam Assist is only an aid. You
are responsible for adjusting the vehicle's
lighting to the prevailing light, visibility and
traffic conditions.
In particular, the detection of obstacles can
be restricted if there is:
R poor visibility, e.g. due to fog, heavy rain or
snow
R dirt on the sensors or the sensors are
obscured
Switching Adaptive Highbeam Assist
on/off X
To activate: turn the light switch to 0058.
X Press the combination switch beyond the
pressure point in the direction of arrow 0043
(Y page 118).
The 00CE indicator lamp in the multifunc-
tion display lights up if it is dark and the
light sensor activates the low-beam head-
lamps.
If you are driving at speeds above approx-
imately 28 mph (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 approx-
imately 35 mph (55 km/h) and no other
road users have been detected:
The high-beam headlamps are switched on
automatically. The 0057indicator lamp in
the instrument cluster also lights up.
If you are driving at speeds below approx-
imately 30 mph (45 km/h) or other road
users have been detected or the roads are adequately lit:
The high-beam headlamps are switched off
automatically. The 0057indicator lamp in
the instrument cluster goes out. The 00CEindicator lamp in the multifunction display
remains lit.
X To deactivate: move the combination
switch back to its normal position.
The 00CE indicator lamp in the multifunc-
tion display goes out. Headlamps fogged up on the inside
Certain climatic and physical conditions may
cause moisture to form in the headlamp. This moisture does not affect the functionality of
the headlamp. Interior lighting
Overview of interior lighting
Front overhead control panel
0043
0042 Switches the rear interior lighting
on/off
0044 0033 Switches the automatic interior
lighting control on/off
0087 003D Switches the right-hand front read-
ing lamp on/off
0085 004A Switches the front interior lighting
on/off
0083 003D Switches the left-hand front reading
lamp on/off Interior lighting
121Lights andwindshield wipers Z

Rear-compartment overhead control panel
0043 003D Switches the right-hand reading
lamp on/off
0044 003D Switches the left-hand reading lamp
on/off 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
unless the SmartKey is in position 2in the
ignition lock.
Automatic interior lighting control X
To activate/deactivate: press the0033
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 SmartKey from the ignition
lock.
The interior light is activated for a short while when the SmartKey is removed from the igni-
tion lock. You can activate this delayed
switch-off using the on-board computer
(Y page 232). Manual interior lighting control X
To switch the front interior lighting on/
off: press the 004Abutton.
X To switch the interior lighting on/off:
press the 0042button.
X To switch the reading lamps on/off:
press the 003Dbutton. 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
SmartKey. Replacing bulbs
Important safety notes
Xenon bulbs G
DANGER
Xenon bulbs carry a high voltage. You can get an electric shock if you remove the cover of
the Xenon bulb and touch the electrical con-
tacts. There is a risk of fatal injury.
Never touch the parts or the electrical con-
tacts of the Xenon bulb. Always have work on
the Xenon bulbs carried out at a qualified spe-
cialist workshop.
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.
Bulbs and lamps are an important aspect of
vehicle safety. You must therefore make sure 122
Replacing bulbsLights and windshield wipers

that these function correctly at all times.
Have the headlamp setting checked regularly.
Other bulbs G
WARNING
Bulbs, lamps and connectors can get very hot when operating. If you change a bulb, you
could burn yourself on these components.
There is a risk of injury.
Allow these components to cool down before changing a bulb.
Do not use a bulb that has been dropped or if
its glass tube has been scratched.
The bulb may explode if:
R you touch it
R it is hot
R you drop it
R you scratch it
Only operate bulbs in enclosed lamps
designed for that purpose. Only install spare
bulbs of the same type and the specified volt- age.
Marks on the glass tube reduce the service
life of the bulbs. Do not touch the glass tube
with your bare hands. If necessary, clean the
glass tube when cold with alcohol or spirit and
rub it off with a lint-free cloth.
Protect bulbs from moisture during opera-
tion. Do not allow bulbs to come into contact
with liquids.
There are bulbs other than the Xenon bulbs
that you cannot replace. Replace only the
bulbs listed (Y page 123). Have the bulbs that
you cannot replace yourself changed at a
qualified specialist workshop.
If you require assistance changing bulbs, con- sult a qualified specialist workshop.
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
0043
Low-beam headlamp: H7 55 W
0044 High-beam headlamp/parking lamp/
standing lamp: H15 55 W/15 W
0087 Turn signal lamp: PWY 24 W Vehicles with Bi-Xenon headlamps
0043
Cornering lamp: H7 55 W 0043
Backup lamp: W 16 W Replacing bulbs
123Lights andwindshield wipers Z

Changing the front bulbs
Low-beam headlamps (halogen head-
lamps) X
Switch off the lights.
X Open the hood.
X Turn housing cover 0043counter-clockwise
and pull it out.
X At the bulb holder, push the bulb upwards,
disconnect it and pull it out of bulb
holder 0044.
X Insert the new bulb into bulb holder 0044,
push it down and secure it in place.
X Attach housing cover 0043and turn it clock-
wise until it engages.
High-beam headlamps, standing
lamps/parking lamps (halogen head-
lamps) X
Switch off the lights.
X Open the hood.
X Turn housing cover 0043counter-clockwise
and pull it out. X
Turn bulb counter-clockwise and pull it out.
X Insert the new bulb into bulb holder 0044and
turn it clockwise.
X Align housing cover 0043and turn it clock-
wise until it engages.
Cornering light function (Bi-Xenon
headlamps) X
Switch off the lights.
X Open the hood.
X Turn housing cover 0043counter-clockwise
and pull it out.
X Push the lever of holder 0044upwards until
holder 0044is released.
X Pull out bulb holder 0044.
X Take the bulb out of bulb holder 0044.
X Insert the new bulb into bulb holder 0044.
X Insert holder 0044from above and press it
until it engages.
X Align housing cover 0043and turn it clock-
wise until it engages.
Turn signal 124
Replacing bulbsLights and windshield wipers

X
Switch off the lights.
X Open the hood.
X Turn housing cover 0043counter-clockwise
and pull it out.
X Grip the back of lever extension 0044and pull
it out in a straight line.
X Take the bulb out of lever extension 0044.
X Insert the new bulb into lever extension 0044.X
Re-insert lever extension 0044downwards
(swelling) with guide rail 0087.Changing the rear bulbs
Opening and closing the side trim pan-
els 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
X To open: turn release knob 004390° in the
direction of the arrow and remove side trim panel 0044.
X To close: insert side trim panel 0044and turn
release knob 004390° in the opposite direc-
tion to the arrow.
Tail lamps X
Switch off the lights.
X Open the cargo compartment.
X Open the side trim panel (Y page 125). X
Pull out connector 0043.
X Turn fender nut 004490° counter-clockwise
and pull out the bulb holder. Replacing bulbs
125Lights and windshield wipers Z

X
Backup lamp 0043
0043:remove the bulb from
bulb holder.
X Insert the new bulb into the bulb holder.
X Re-install bulb holder.
X Turn fender nut 90° clockwise.
X Insert the connector.
X Close the side trim panel (Y page 125).Windshield wipers
Switching the windshield wipers
on/off
! 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.
If it is necessary to switch on the windshield wipers in dry weather conditions, always
use washer fluid when operating the wind-
shield wipers.
! 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
0047
003F Windshield wiper off
0048 0062 Intermittent wipe, low (rain sensor
set to low sensitivity)
0049 0063 Intermittent wipe, high (rain sensor
set to high sensitivity)
004A 00AA Continuous wipe, slow
004B 00A9 Continuous wipe, fast
0084 00D3 Single wipe/00D4 To wipe the wind-
shield using washer fluid
X Switch on the ignition.
X Turn the combination switch to the corre-
sponding position.
! Vehicles with a rain sensor: if the wind-
shield becomes dirty in dry weather condi-
tions, the windshield wipers may be activa-
ted 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.
If the wiper blades are worn, the windshield
will no longer be wiped properly. This could
prevent you from observing the traffic condi-
tions. 126
Windshield wipersLights and windshield wipers