2016 MERCEDES-BENZ GLS SUV key

Exterior lighting
General notes
For reasons of safety, Mercedes-Benz recom-
mends that you drive with the lights switched on even during the daytime. In some countries,
operation of the headlamps varies due to legal
requirements and self-imposed obligations. Driving abroad
General notes If your journey takes you to countries where
vehicles are driven on the opposite side of the
road to the country in which the vehicle is reg-
istered, your headlamps must be switched to
symmetrical dipped beam as soon as possible
after crossing the border. This prevents oncom-
ing traffic from being dazzled. Symmetrical
lights do not illuminate as large an area of the
edge of the carriageway.
Vehicles with halogen headlamps X
Turn cap :anti-clockwise and remove it.
X Push switchover lever ;down.
X Replace cap :and turn it clockwise.
Convert the headlamps back to asymmetrical
dipped beam as soon as possible after returning across the border.
Vehicles with Intelligent Light System X
Before crossing the border, set the head-
lamps to symmetrical dipped beam and after
returning back to asymmetrical dipped beam via the "Dipped-beam headlamps for driving
on the right/left" function in the on-board
computer (Y page 252). If the headlamps are converted to symmetrical
dipped beam, the "motorway mode" and "exten-
ded range foglamps" functions are not available. Setting the exterior lighting
Setting options Exterior lighting can be set using:
R the light switch
R headlamp range control (vehicles with halo-
gen headlamps only) (Y page 122)
R the combination switch (Y page 122)
R the on-board computer (Y page 252)
Light switch Operation
1
W
Left-hand parking lamps
2 X
Right-hand parking lamps
3 T
Side lamps, licence plate and instru-
ment cluster lighting
4 c
Automatic headlamps, controlled by
the light sensor
5 L
Dipped-beam/main-beam headlamps
B R
Rear foglamp
If you hear a warning tone when you leave the
vehicle, the lights may still be switched on.
X Turn the light switch to c.
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 0in the ignition lock 120
Exterior lightingLights and windscreen wipers

Automatic headlamps
c is the preferred light switch position. The
light setting is automatically selected according to the brightness of the ambient light (excep-
tion: poor visibility due to weather conditions
such as fog, snow or spray):
R key in position 1in the ignition lock: the side
lamps are switched on or off automatically
depending on the brightness of the ambient
light
R with the engine running: depending on the
ambient light conditions, the daytime driving
lights or the side lamps and dipped-beam
headlamps are switched on or off automati-
cally
X To switch on automatic headlamp mode:
turn the light switch to c. G
WARNING
When the light switch is set to Ã, the
dipped-beam headlamps may not be switched on automatically if there is fog, snow or othercauses of poor visibility due to the weather
conditions such as spray. There is a risk of an
accident.
In such situations, turn the light switch to
L.
The automatic headlamp feature is only an aid.
You are responsible for the vehicle lighting at all times.
The daytime driving lights improve the visibility
of your vehicle during the day.
When the side lamps and dipped-beam head-
lamps are switched on, the green T(side
lamps) and L(dipped-beam headlamps)
indicator lamps in the instrument cluster light
up.
Dipped-beam headlamps
When the ignition is switched on and the light
switch is in the Lposition, the side lamps
and dipped-beam headlamps are switched on
even if the light sensor does not sense dark
ambient light conditions. This is particularly
advantageous when there is fog or rain. X
To switch on the dipped-beam headlamps:
turn the key in the ignition lock to position 2
or start the engine.
X Turn the light switch to L.
The green Lindicator lamp on the instru-
ment cluster lights up.
Rear foglamp
The rear foglamp improves the visibility of your
vehicle in heavy fog for the following traffic.
Please observe the country-specific laws on the
use of rear foglamps.
X To switch on the rear foglamp: turn the key
in the ignition lock to position 2or start the
engine.
X Turn the light switch to Lorc .
X Press the Rbutton.
The yellow Rindicator lamp in the instru-
ment cluster lights up.
X To switch off the rear foglamp: press the
R button.
The yellow Rindicator lamp in the instru-
ment cluster goes out.
Side lamps ! When the battery is discharged heavily, the
side lamps or parking lamps are automatically
switched off to facilitate an engine start.
Always park your vehicle safely and in a well lit area, in accordance with the relevant legal
stipulations. Avoid using the Tside lamps
for periods lasting several hours. Where pos-
sible, switch on the right Xor left W
parking lamp.
X To switch on: turn the light switch to T.
The green Tindicator lamp in the instru-
ment cluster lights up.
Parking lamps Switching on the parking lamps ensures that the
corresponding side of the vehicle is illuminated.
X To switch on the parking lamps: the key
should not be in the ignition lock or it should
be in position 0.
X Turn the light switch to W(left-hand side of
the vehicle) or X(right-hand side of the
vehicle). Exterior lighting
121Lights and windscreen wipers Z

The
K indicator lamp in the instrument
cluster goes out. The _indicator lamp in
the multifunction display remains lit.
X To switch off: move the combination switch
back to its normal position or move the light
switch to another position.
The _ indicator lamp in the multifunction
display goes out. Headlamps misted up on the inside
Under certain climatic and physical conditions,
moisture may form in the headlamp. This mois-
ture will not impair the function of the headlamp. Interior lighting
Overview of interior lighting
Overhead control panel
:
p Switches the left-hand front reading
lamp on/off
; c Switches the front interior lighting on
= v Switches the rear interior lighting on/
off
? | Switches the front interior lighting/
automatic interior lighting control off
A p Switches the right-hand front reading
lamp on/off
B Switches the automatic interior lighting con-
trol on Rear overhead control panel (second row of seats)
: Switches the reading lamp on/off Rear overhead control panel (third row of seats)
:
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 key is in position
2in the
ignition lock.
The colour and brightness for the ambient light-
ing may be set via the multimedia system (see
the separate operating instructions).
Automatic interior lighting control X
To switch on: set the switch to centre posi-
tion B.
X To switch off: set the switch to the |
position. Interior lighting
125Lights and windscreen wipers Z

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 ignition lock.
This delayed switch-off can be adjusted via the
multimedia system (see separate Owner's Man- ual). 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 emer-
gency lighting: press the hazard warning
lamp button.
or X Lock and then unlock the vehicle using the
key. Replacing bulbs (vehicles with LED
headlamps)
The front and rear light clusters of your vehicle
are equipped with LED bulbs. Do not replace the
vehicle's bulbs yourself. Contact a qualified spe- cialist workshop with the necessary specialist
knowledge and tools to carry out the work
required.
Lamps are an important aspect of vehicle safety.
You must therefore make sure that these func-
tion correctly at all times. Have the headlamp
setting checked regularly. Replacing bulbs (vehicles with halo-
gen headlamps) Important safety notes
G
WARNING
Bulbs, lamps and plug connectors can
become very hot during use. When replacing a bulb, you could burn yourself on these com-
ponents. There is a risk of injury. Allow these components to cool down before
replacing the bulb.
Do not use a bulb if it 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
Use bulbs only in closed lamps that have been
designed for this purpose. Fit only spare bulbs of the same type and the specified voltage.
Marks on the glass tube reduce the service life
of the bulb. 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 operation.
Do not allow bulbs to come into contact with
liquids.
Replace only the bulbs listed (Y page 126).
Have the bulbs that you cannot replace yourself
replaced at a qualified specialist workshop.
If you require assistance replacing bulbs, con-
sult a qualified specialist workshop.
If the new bulb does not light up either, consult
a qualified specialist workshop.
Headlamps 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 of bulb replacement - bulb
types
You can replace the following bulbs. The details for the bulb types can be found in the legend. 126
Replacing bulbs (vehicles with halogen headlamps)Lights and windscreen wipers

X
Simultaneously press bulb holder ;and pull
lever =downwards.
X Press on housing cover :and turn it to the
right. Turn signals
X
Switch off the lights.
X Open the bonnet.
X Turn housing cover :anti-clockwise and
remove it.
X Turn bulb holder ;anti-clockwise and pull
out.
X Pull the bulb out of bulb holder ;.
X Insert new bulb into bulb holder ;.
X Insert bulb holder ;and turn it clockwise.
X Press on housing cover :and turn it to the
right. Windscreen wipers
Switching the windscreen wipers on/
off
! Do not operate the windscreen wipers when
the windscreen is dry, as this could damage
the wiper blades. Moreover, dust that has col-
lected on the windscreen can scratch the
glass if wiping takes place when the wind-
screen is dry.
If it is necessary to switch on the windscreen wipers in dry weather conditions, always
operate them using washer fluid.
! 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 wind- screen with washer fluid after an automatic
car wash.
! Intermittent wiping with rain sensor: due to
optical influences and the windscreen becom-
ing dirty in dry weather conditions, the wind-
screen wipers may be activated 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. Combination switch
1 $ Windscreen wipers off
2 Ä Intermittent wipe, low (rain sensor set
to low sensitivity)
3 Å Intermittent wipe, high (rain sensor
set to high sensitivity)
4 ° Continuous wipe, slow
5 ¯ Continuous wipe, fast
B í Single wipe
C î Wipes with washer fluid
X Turn the key to position 1or 2in the ignition
lock (Y page 148).
X Turn the combination switch to the corre-
sponding position.
In the ÄorÅ position, the appropriate
wiping frequency is set automatically according to the intensity of the rain. In the Åposition,
the rain sensor is more sensitive than in the
Ä position, causing the windscreen wiper to
wipe more frequently.
Vehicles with MAGIC VISION CONTROL: the
washer fluid is fed through the wiper blades and when wiping with washer fluid îthe washer
fluid is emitted directly from the blades.
If the wiper blades are worn, the windscreen will
no longer be wiped properly. This could mean
you are unable to observe the traffic conditions. 128
Windscreen wipersLights and windscreen wipers

Switching the rear window wiper on/
off Combination switch
:
è Rear window wiper switch
2 b Wipes with washer fluid
3 ISwitches on intermittent wiping
4 0Switches off intermittent wiping
5 b Wipes with washer fluid
X Turn the key to position 1or 2in the ignition
lock (Y page 148).
X Turn 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 G
WARNING
If the windscreen wipers begin to move while
you are changing the wiper blades, you can be trapped by the wiper arm. There is a risk of
injury.
Always switch off the windscreen wipers and
ignition before changing the wiper blades.
! To avoid damaging the windscreen wiper
blades, make sure that you touch only the
wiper arm of the windscreen wiper.
! 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 wind-
screen/rear window may be damaged by the
force of the impact.
Mercedes-Benz recommends that you have
the wiper blades changed at a qualified spe-
cialist workshop.
Replacing the windscreen wiper blades Removing the wiper blades
X Remove the key from the ignition lock.
X Fold the wiper arm away from the windscreen. X
Firmly press release knob :and pull wiper
blade ;upwards from the wiper arm in the
direction of the arrow.
Fitting the wiper blades X
Position new wiper blade :in 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 sits correctly.
X Fold the wiper arm back onto the windscreen. Windscreen wipers
129Lights and windscreen wipers Z

Replacing the rear window wiper blade
Removing the wiper blades
X
Remove the key from the ignition lock.
X Fold wiper arm :away from the rear window
until it engages. X
Position wiper blade ;at a right angle to
wiper arm :.
X Hold wiper arm :and press wiper blade ;
in the direction of the arrow until it releases.
X Remove wiper blade ;.
Fitting a wiper blade
X Place new wiper blade ;onto wiper arm :.
X Hold wiper arm :and press wiper blade ;
in the opposite direction to the arrow until it
engages.
X Make sure that wiper blade ;is seated cor-
rectly.
X Position wiper blade ;parallel to wiper
arm :.
X Fold wiper arm :back onto the rear window. Problems with the windscreen wipers
Problem
Possible causes/consequences and
M
MSolutions The windscreen wipers
are jammed. Leaves or snow, for example, may be obstructing the windscreen
wiper movement. The wiper motor has been deactivated.
X For safety reasons, you should remove the key from the ignition
lock.
or X Switch off the engine using the Start/Stop button and open the
driver's door.
X Remove the cause of the obstruction.
X Switch the windscreen wipers back on. The windscreen wipers
fail completely. The windscreen wiper drive is malfunctioning.
X Select another wiper speed on the combination switch.
X Have the windscreen wipers checked at a qualified specialist work-
shop. 130
Windscreen wipersLights and windscreen wipers

Overview of climate control systems
General notes
Observe the settings recommended on the fol-
lowing pages. Otherwise, the windows could
mist up.
To prevent the windows from misting up:
R switch off climate control only briefly
R activate air-recirculation mode only briefly
R switch on "Cooling with air dehumidification"
R activate the "Windscreen demisting" function
briefly, if required
Climate control regulates the temperature and
the humidity in the vehicle interior and filters
undesirable substances out of the air.
the "Residual heat" function can be switched on
or off only with the ignition switched off
(Y page 140).
i Ventilate the vehicle for a brief period during
warm weather, e.g. using the convenience
opening feature (Y page 95).
This will speed up the cooling process and the desired interior temperature will be reached
more quickly. i
The integrated filter filters out most parti-
cles of dust and soot and completely filters
out pollen. It also reduces gaseous pollutants
and odours. A clogged filter reduces the
amount of air supplied to the vehicle interior.
For this reason, you should always observe
the interval for replacing the filter, which is
specified in the Service Booklet. As this
depends on environmental conditions, e.g.
heavy air pollution, the interval may be
shorter than stated in the Service Booklet.
i Vehicles with AIR-BALANCE package:
in
addition to ionisation, the vehicle has an air
filter with anti-allergenic properties that con-
tribute to improved air filtration.
i Under certain environmental conditions, the
residual heat function may be activated auto-
matically an hour after the key has been
removed in order to dry the automatic climate control. The vehicle is then ventilated for 30
minutes. Control panel for THERMATIC automatic climate control (2-zone)
Front control panel
: To set the temperature, left (Y page 136)
; To demist the windscreen (Y page 137)
= To switch the ZONE function on/off (Y page 137)
? To activate/deactivate cooling with air dehumidification (Y page 135) Overview of climate control systems
131Climate control