2015 MERCEDES-BENZ GL-Class ignition

High-beam headlamps
0043
High-beam headlamps
0044 Turn signal, right
0087 High-beam flasher
0085 Turn signal, left
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 blue 0057indicator lamp in the instru-
ment cluster lights up when the high-beam headlamps are switched on.
X To switch off the high-beam head-
lamps: move the combination switch back
to its normal position.
The blue 0057indicator lamp in the instru-
ment cluster goes out.
i Vehicles with Adaptive Highbeam Assist:
when Adaptive Highbeam Assist is active, it controls activation of the high-beam head-
lamps (Y page 134). High-beam flasher 0043
High-beam headlamps
0044 Turn signal, right
0087 High-beam flasher
0085 Turn signal, left
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
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 0043.132
Exterior lightingLights and windshield wipers

The hazard warning lamps automatically
switch on if:
R an air bag is deployed or
R the vehicle decelerates rapidly from a
speed of above 45 mph (70 km/h) and
comes to a standstill
The hazard warning lamps switch off auto-
matically if the vehicle reaches a speed of
above 6 mph (10 km/h) again after a full
brake application.
i The hazard warning lamps still operate if
the ignition is switched off. 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 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. It 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. Exterior lighting
133Lights and windshield wipers Z

Rear overhead control panel (third row of seats)
0043 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 light- ing can be adjusted using the on-board com-
puter (Y page 286).
Automatic interior lighting control Overhead control panel
0043 003D To switch the left-hand front reading
lamp on/off
0044 004A To switch the front interior lighting
on
0087 0043 To switch the rear interior lighting
on/off 0085
0033 To switch the front interior lighting/
automatic interior lighting control off
0083 003D To switch the right-hand front read-
ing lamp on/off
0084 To switch the automatic interior lighting
control on
X To switch on: set the switch to center
position 0084.
X To switch off: set the switch to the 0033
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 igni- tion lock. You can activate this delayed
switch-off using the on-board computer
(Y page 287).
Manual interior lighting control Overhead control panel
0043 003D To switch the left-hand front reading
lamp on/off
0044 004A To switch the front interior lighting
on
0087 0043 To switch the rear interior lighting
on/off
0085 0033 To switch the front interior lighting/
automatic interior lighting control off 136
Interior lightingLights and windshield wipers

Brake lamp
X
Switch off the lights.
X Open the cargo compartment.
X Open the service flap (Y page 139).
X Turn bulb holder 0043counter-clockwise and
remove it.
X Take bulb out of bulb holder 0043.
X Insert the new bulb into bulb holder 0043.
X Insert bulb holder 0043into the lamp and turn
it clockwise.
X Close the service flap (Y page 139).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. !
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
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
006B 00D4 To wipe with washer fluid
X Switch on the ignition.
X Turn the combination switch to the corre-
sponding position.
In the 0062or0063 position, the appropriate
wiping frequency is set automatically accord- ing to the intensity of the rain. In the 0063
position, the rain sensor is more sensitive
than in the 0062position, causing the wind-
shield 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 condi-
tions. 140
Windshield wipersLights and
windshield wipers

Switching the rear window wiper on/
off Combination switch
0043
00C5 Rear window wiper switch
0048 008E To wipe with washer fluid
0049 ITo switch on intermittent wiping
004A 0To switch off intermittent wiping
004B 00E2 To wipe with washer fluid
X Turn the SmartKey to position 1or 2in the
ignition lock (Y page 167).
X Turn switch 0043on 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 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.
! Never open the hood/tailgate if a wiper
arm has been folded away from the wind-
shield/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 a qualified
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 wind-
shield. X
Firmly press release knob 0043and pull wiper
blade 0044upwards from the wiper arm in the
direction of the arrow. Windshield wipers
141Lights and windshield wipers Z

Installing the wiper blades
X
Position new wiper blade 0043in 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 wind-
shield.
Replacing the rear window wiper blade Removing a wiper blade
X
Remove the SmartKey from the ignition
lock.
X Fold wiper arm 0043away from the rear win-
dow until it engages.
X Position wiper blade 0044at a right angle to
wiper arm 0043.
X Hold wiper arm 0043and press wiper
blade 0044in the direction of the arrow until
it releases.
X Remove wiper blade 0044. Installing a wiper blade
X Place new wiper blade 0044onto wiper
arm 0043.
X Hold wiper arm 0043and press wiper
blade 0044in the opposite direction to the
arrow until it engages.
X Make sure that wiper blade 0044is seated
correctly.
X Position wiper blade 0044parallel to wiper
arm 0043.
X Fold wiper arm 0043back onto the rear win-
dow. 142
Windshield wipersLights and windshield wipers

Problems with the windshield wipers
Problem
Possible causes/consequences and
0050
0050Solutions The windshield wipers
are jammed. Leaves or snow, for example, may be obstructing the windshield
wiper movement. The wiper motor has been deactivated.
X For safety reasons, you should remove the SmartKey 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 windshield wipers back on. The windshield wipers
fail completely. The windshield wiper drive is malfunctioning.
X Select another wiper speed on the combination switch.
X Have the windshield wipers checked at a qualified specialist
workshop. Windshield wipers
143Lights and windshield wipers Z

Useful information
i This Operator's Manual describes all
models and all standard and optional equip- ment of your vehicle available at the time of
publication of the Operator's Manual.
Country-specific differences are possible.
Please note that your vehicle may not be
equipped with all features described. This
also applies to safety-related systems and
functions.
i Read the information on qualified special-
ist workshops (Y page 29). Overview of climate control systems
General notes
Observe the settings recommended on the
following pages. The windows could other-
wise fog up.
To prevent the windows from fogging up:
R switch off climate control only briefly
R switch on air-recirculation mode only
briefly
R switch on the cooling with air dehumidifi-
cation function
R switch on the defrost windshield function
briefly, if required
Climate control regulates the temperature
and the humidity in the vehicle interior and
filters undesirable substances out of the air.
Climate control can only be operated when
the engine is running. Optimum operation is
only achieved with the side windows and roof closed.
The residual heat function can only be acti-
vated or deactivated with the ignition
switched off (Y page 161).
i Ventilate the vehicle for a brief period
during warm weather, e.g. using the con-
venience opening feature (Y page 97).
This will speed up the cooling process and
the desired interior temperature will be
reached more quickly. i
The integrated filter filters out most par-
ticles of dust and soot and completely fil-
ters out pollen. It also reduces gaseous pol-
lutants and odors. A clogged filter reduces the amount of air supplied to the vehicle
interior. For this reason, you should alwaysobserve the interval for replacing the filter,which is specified in the Maintenance
Booklet. As it depends on environmental
conditions, e.g. heavy air pollution, the
interval may be shorter than stated in the
Maintenance Booklet.
i It is possible that the residual heat func-
tion may be activated automatically an hour
after the SmartKey has been removed in
order to dry the air-conditioning system.
The vehicle is then ventilated for 30
minutes. 146
Overview of climate control systemsClimate control