MERCEDES-BENZ GL-Class 2013 X166 Owner's Manual

The hazard warning lamps automatically
switch on if:
R
an air bag is deployed.
R the vehicle decelerates rapidly from a
speed of more than 45mph (70 km/h) and
comes to a standstill.
The hazard warning lamps switch off
automatically if the vehicle reaches a speed
of over 6mph (10km/h) again after a full
brake application.
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
operated five times (Y page 136) while the
lights are on and the engine is running. When
you switch off the ignition, the automatic
headlamp cleaning system is reset and
counting is resumed from 0. Active light function
The active light function is a system that
moves the headlamps according to the
steering movements of the front wheels. In
this way, relevant areas remain illuminated
while driving. This allows you to recognize
pedestrians, cyclists and animals.
Active: whenthe lights are switched on. 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:
R
if you are driving at speeds below
25mph (40 km/h) and switch on the turn
signal or turn the steering wheel
R if you are driving at speeds between
25mph (40 km/h) and45mph (70 km/h)
and turn the steering wheel
Not active: if your speed exceeds
25mph (40 km/h) or if you 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. Adaptive Highbeam Assist
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 Exterior lighting
129Lights and windshield wipers
Z

In very rare cases, Adaptive Highbea
mAssist
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
accident.
Always carefully observe the traffic conditions
and switch off the high-beam headlamps in
good time. You can use this function to set the
headlamps to change between low beam and
high beam automatically. The system
recognizes vehicles with their lights on, either
approaching 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
distance to the other vehicle. Once the
system no longer detects any other vehicles,
it reactivates the high-beam headlamps.
The system's optical sensor is located behind
the windshield near the overhead control
panel. Switching Adaptive Highbeam Assist
on/off
0002
High-beam headlamps
0003 Turn signal, right
0021 High-beam flasher
0020 Turn signal, left
X To activate: activate the Adaptive
Highbeam Assist function using the on-
board computer (Y page 279).
X Turn the light switch to 0006.
X Press the combination switch beyond the
pressure point in the direction of arrow 0002
(Y page 127).
The 0005 indicator lamp in the
multifunction display lights up if it is dark
and the light sensor activates the low-beam
headlamps.
If you are driving at speeds above
approximately 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
approximately 35 mph (55 km/h) and no
other road users have been detected:
the high-beam headlamps are switched on
automatically. The 000Cindicator lamp in
the instrument cluster also lights up.
If you are driving at speeds below
approximately 30 mph (45 km/h) or other
road users have been detected or the roads
are adequately lit: 130
Exterior lightingLights and windshield wipers

The high-beam headlamps are switched off
automatically. The 000Cindicator lamp in
the instrument cluster goes out. The 0005
indicator lamp in the multifunction display
remains lit.
X To deactivate: move the combination
switch back to its normal position.
The 0005 indicator lamp in the instrument
cluster goes out. Headlamps fogged up on the inside
The headlamps may fog up on the inside if
there is high atmospheric humidity.
X Switch on the lights and drive off.
The level of moisture diminishes,
depending on the length of the journey and
the weather conditions (humidity and
temperature).
If the level of moisture does not diminish:
X Have the headlamps checked at a qualified
specialist workshop. Interior lighting
Overview of interior lighting
Overhead control panel
0002
0015 To switch the left-hand frontr eading
lamp on/off
0003 0006 To switch the front interior lighting
on
0021 0003 To switch the rear interior lighting
on/off 0020
001D To switch the fron tinterior lighting/
automatic interio rlighting control off
001E 0015 To switch the right-han dfront
reading lamp on/off
001F To switch the automatic interior lighting
control on Rearo
verhead control panel (second row of seats)
0002 Switches the reading lamp on/off Rearo
verhead control panel (third row of seats)
0002 Reading lamp 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 SmartKey is in position
2
in the ignition lock.
The color and brightness of the ambient
lighting can be adjusted using the on-board
computer (Y page 279). Interior lighting
131Lights and windshield wipers Z

Automatic interior lighting control
Overhead control panel
0002 0015 To switch the left-hand fron treading
lamp on/off
0003 0006 To switch the front interior lighting
on
0021 0003 To switch the rear interior lighting
on/off
0020 001D To switch the fron tinterior lighting/
automatic interio rlighting control off
001E 0015 To switch the right-han dfront
reading lamp on/off
001F To switch the automatic interior lighting
control on
X To switch on: set the switch to center
position 001F.
X To switch off: set the switch to the 001D
position.
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
ignitio nlock. You can activate this delayed
switch-off using the on-board computer
(Y page 280). Manual interior lighting control
Overhead control panel
0002
0015 To switch the left-hand front reading
lamp on/off
0003 0006 To switch the front interior lighting
on
0021 0003 To switch the rear interior lighting
on/off
0020 001D To switch the front interior lighting/
automatic interior lighting control off
001E 0015 To switch the right-hand front
reading lamp on/off
001F To switch the automatic interior lighting
control on
X To switch the front interior lighting on:
set the switch to the 0006position.
X To switch the interior lighting off: set the
switch to the 001Dposition or (if the door
is closed) to the center position.
X To switch the rear interior lighting on/
off: press the 0002button.
X To switch the reading lamps on/off:
press the 0015button. 132
Interior lightingLights and windshiel
dwipers

Crash-responsive emergency lighting
The interio rlighting 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 Loc kand then unlock the vehicle using the
SmartKey. Replacing bulbs
Important safety notes
Xenon bulbs G
DANGER
Xeno nbulbs carry a high voltage. You can get
an electric shock if you remove the cover of
the Xenon bulb and touch the electrical
contacts. There is a risk of fatal injury.
Never touch the parts or the electrical
contacts of the Xenon bulb. Always have work
on the Xenon bulbs carried out at a qualified
specialist 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 aspec tof
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, 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.
There are bulbs other than the Xenon bulbs
that you cannot replace. Replace only the
bulbs listed (Y page 133). Have the bulbs that
you cannot replace yourself changed 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 correc ttype.
If the new bulb still does no tlight up, consult
a qualified specialist workshop.
Bulbs and lamps are an importan taspect of
vehicle safety. You must therefore make sure
that these function correctly at all times.
Have the headlamp setting checked regularly. Overview:c
hanging bulbs/bulb types
You can change the following bulbs. The bulb
type can be found in the legend. Halogen headlamps
0002
Low-beam headlamp: H7 55 W
0003 High-beam headlamp: H7 55 W Replacing bulbs
133Lights and windshield wipers Z

Tail lamp
0002
Brake lamp: P 21 W-L Changing the front bulbs
Removing and installing the cover in the
front wheel housing You must remove the cover from the front
wheel housing before you can change the
front bulbs. X
To remove: switch off the lights.
X Turn the front wheels inwards.
X Remove securing pin 0003using a suitable
tool.
X Slide cover 0002up and remove it.
X To install: insert cover 0002again and slide
it down until it engages.
X Insert securing pin 0003. Low-beam headlamps (halogen
headlamps) G
WARNING
These bulbs are pressurized.
They can explode when being changed if:
R they are still hot
R they hit an object when being removed
R they are dropped
There is a risk of injury.
You should wear eye protection and clean
gloves when you are changing a bulb. If
necessary, have bulbs changed at a qualified
specialist workshop. X
Remove the cover in the front wheel
housing (Y page 134).
X Turn housing cover 0002counter-clockwise
and pull it out.
X Turn bulb holder 0003counter-clockwise and
pull it out.
X Take the bulb out of bulb holder 0003.
X Insert the new bulb into bulb holder 0003.
X Insert bulb holder 0003into the lamp and turn
it clockwise.
X Align housing cover 0002and turn it
clockwise until it engages.
X Replace the cover in the front wheel
housing (Y page 134).134
Replacing bulbsLights and windshield wipers

High-beam headlamps (halogen
headlamps)
G
WARNING
These bulbs are pressurized.
They can explode when being changed if:
R they are still hot
R they hit an object when being removed
R they are dropped
There is a risk of injury.
You should wea reye protection and clean
gloves when you are changin gabulb. If
necessary, have bulbs changed at a qualified
specialist workshop. X
Switch off the lights.
X Open the hood.
X Turn housing cover 0002counter-clockwise
and pull it out.
X Pull lever 0021upwards and remove bulb
holder 0003.
X Take the bulb out of bulb holder 0003.
X Inser tthe new bulb into bulb holder 0003.
X Simultaneously press bulb holder 0003and
pull lever 0021downwards.
X Align housing cover 0002and turn it
clockwise until it engages. Changing the rear bulbs
Opening and closing the service flap Left-hand service flap
Right-hand service flap
You must open the service flap in the cargo
compartment before you can change the
bulbs in the brake lamp.
X
To open: release service flap 0002at the top,
e.g. with a screwdriver, and swing it
downward in the direction of the arrow.
X Right side: remove the first-aid kit
beforehand and pull the parcel net down.
X To close: reinsert service flap 0002. Replacing bulbs
135Lights and windshield wipers Z

Brake lamp
X
Switch off the lights.
X Open the cargo compartment.
X Ope nthe service flap (Y page 135).
X Turn bulb holder 0002counter-clockwise and
remove it.
X Take bulb out of bulb holder 0002.
X Insert the new bulb into bulb holder 0002.
X Insert bulb holder 0002into the lamp and turn
it clockwise.
X Close the service flap (Y page 135).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
windshield 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.
Cleant he windshield using washer fluid
after washing the vehicle in an automatic
car wash. !
Intermittent wiping with rain sensor: due
to optical influences and the windshield
becoming 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. Combination switch
0004
0008 Windshield wiper off
0005 0001 Intermittent wipe, low (rain sensor
set to low sensitivity)
0006 0002 Intermittent wipe, high (rain sensor
set to high sensitivity)
000B 0018 Continuous wipe, slow
000C 0012 Continuous wipe, fast
001F 0007 Single wipe
0013 0008 To wipe with washer fluid
X Switch on the ignition.
X Turn the combination switch to the
corresponding position.
In the 0001or0002 position, the appropriate
wiping frequency is set automatically
according to the intensity of the rain. In
the 0002 position, the rain sensor is more
sensitive than in the 0001position, causing
the windshield wipers to wipe more
frequently.
If the wiper blades are worn, the windshield
will no longer be wiped properly. This could
prevent you from observing the traffic
conditions. Replace the wiper blades twice a
year, ideally in spring and fall. 136
Windshield wipersLights and windshield wipers

Switching the rear window wiper on/
off
Combination switch
0002
0001 Rear window wiper switch
0005 0007 To wipe with washer fluid
0006 ITo switch on intermittent wiping
000B 0To switch off intermittent wiping
000C 000E To wipe with washer fluid
X Turn the SmartKey to position 1or 2in the
ignition lock (Y page 163).
X Turn switch 0002on the combination switch
to the corresponding position.
When the rear window wiper is switched on,
the icon appears in the instrumen tcluster. Replacing the wiper blades
Important safety notes G
WARNING
If the windshield wipers begin to move while
you are changing the wiper blades, you could
be trapped by the wiper arm. There is a risk
of injury.
Always switch off the windshield wipers and
ignition before changing the wiper blades.
! Neve ropen the hood/tailgate if a wiper
arm has been folded away from the
windshield/rear window.
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 wiper arm without a wiper blade and it
falls onto the windshield/rear window, the
windshield/rear window may be damaged
by the force of the impact.
Mercedes-Benz recommends that you have
the wiper blades changed at
aqualified
specialist workshop.
! To avoid damaging the wiper blades,
make sure that you touch only the wiper
arm of the wiper.
Changing the windshield wiper blades Removing the wiper blades
X
Remove the SmartKey from the ignition
lock.
X Fold the wiper arm away from the
windshield. X
Firmly press release knob 0002and pull wiper
blade 0003upwards from the wiper arm in the
direction of the arrow. Windshiel
dwipers
137Lights and windshield wipers Z

Installing the wiper blades
X
Positio nnew wiper blade 0002in the retainer
on the wiper arm and slide it into place in
the direction of the arrow.
The wiper blade audibly engages.
X Make sure that the wiper blade is seated
correctly.
X Fold the wiper arm back onto the
windshield.
Replacing the rear window wiper blade Removing
awiper blade X
Remove the SmartKey from the ignition
lock.
X Fold wiper arm 0002away from the rear
window until it engages.
X Position wiper blade 0003at a right angle to
wiper arm 0002.
X Hold wiper arm 0002and press wiper
blade 0003in the direction of the arrow until
it releases.
X Remove wiper blade 0003. Installing
awiper blade
X Place new wiper blade 0003onto wiper
arm 0002.
X Hold wiper arm 0002and press wiper
blade 0003in the opposite direction to the
arrow until it engages.
X Make sure that wiper blade 0003is seated
correctly.
X Position wiper blade 0003parallel to wiper
arm 0002.
X Fold wiper arm 0002back onto the rear
window. 138
Windshield wipersLights and windshield wipers