ignition MERCEDES-BENZ GLS SUV 2016 Owner's Manual

doors must be shut and the key must be loca-
ted in the vicinity of the tailgate.
i There must not be a key in the ignition lock
in order to open and close the tailgate.
If the tailgate touches an object while closing, the closing procedure is interrupted and the
tailgate reopens.
i If a KEYLESS-GO key is detected in the lug-
gage compartment, the tailgate will not lock. Opening and closing automatically
from the inside
Important safety notes G
WARNING
Parts of the body could become trapped dur-
ing automatic closing of the tailgate. In addi-
tion, people may be standing in the closing
area or may enter the closing area, e.g. chil-
dren, during the closing procedure. There is a risk of injury.
Make sure that nobody is in the vicinity of theclosing area during the closing process.
Release the remote operating switch imme-
diately if somebody becomes trapped. To re-
open the tailgate pull on the remote operating
switch. G
WARNING
Combustion engines emit poisonous exhaust
gases such as carbon monoxide. If the tailgate is open when the engine is running, particu-
larly if the vehicle is moving, exhaust fumes
could enter the passenger compartment.
There is a risk of poisoning.
Turn off the engine before opening the tail-
gate. Never drive with the tailgate open.
! The tailgate swings upwards and to the rear
when opened. Therefore, make sure that
there is sufficient clearance above and behind
the tailgate.
Two warning tones sound while the tailgate is
opening or closing.
The opening dimensions of the tailgate can be
found in the "Vehicle data" section
(Y page 387). i
Notes on the automatic reversing feature for
the tailgate (Y page 90).
Opening and closing X
To open:pull remote operating switch :for
the tailgate until the tailgate opens.
X To close: turn the key to position 1or 2in the
ignition lock.
X Press remote operating switch for tailgate :
until the tailgate is completely closed.
You can open and close the tailgate from the
driver's seat when the vehicle is stationary and
unlocked. Limiting the opening angle of the tail-
gate
General notes !
Make sure there is sufficient clearance to
open the tailgate fully when setting the open- ing angle. The tailgate could otherwise be
damaged. Ideally, set the opening angle out-
side.
Priming You can limit the opening angle of the tailgate.
This is possible in the top half of its opening
range, up to approximately 10 cm before the
stop.
X To open the tailgate: pull the handle on the
tailgate.
X To stop the opening procedure at the
desired position:
press the closing button in92
Luggage compartmentOpening and closing

G
WARNING
The reversing function does not react:
R to soft, light and thin objects, e.g. small fin-
gers
R over the last 4 mm of the closing movement
R during resetting
R when closing the side window again man-
ually immediately after automatic reversing
This means that the reversing function cannot prevent someone being trapped in these sit-
uations. There is a risk of injury.
When closing make sure that no parts of the
body are in the closing area. If someone
becomes trapped, press the switch to open
the side window again. Opening and closing the side win-
dows
The switches for all side windows are located on
the driver's door. There is also a switch on each door for the corresponding side window.
The switches on the driver's door take prece-
dence. :
Front left
; Front right
= Rear right
? Rear left
X Turn the key to position 1or 2in the ignition
lock.
X To open manually: press and hold the cor-
responding button.
X To open fully: press the button beyond the
point of resistance and release it.
Automatic operation is started. X
To close manually: pull the corresponding
button and hold it.
X To close fully: pull the button beyond the
point of resistance and release it.
Automatic operation is started.
X To interrupt automatic operation: press/
pull the corresponding switch again.
If you press/pull the switch beyond the point of resistance and release, automatic operation is
started in the corresponding direction. You can
stop automatic operation by pressing/pulling
again.
You can continue to operate the side windows
after switching off the engine or removing the
key. This function remains active for five
minutes or until the driver's or front-passenger
door is opened.
The side windows cannot be operated from the
rear when the override feature for the side win-
dows is activated (Y page 68). Opening and closing the hinged side
windows
The hinged side windows are operated electri-
cally from the driver's seat. X
Turn the key to position 1or 2in the ignition
lock.
X To open fully: press switch:and release it.
X To close fully: pull switch:and release it.
X To stop the closing procedure: press
switch :again.
If the hinged side windows become blocked dur-
ing closing, the closing procedure is stopped.
The hinged side windows then open again fully. 94
Side windowsOpening and closing

X
To interrupt convenience closing: release
the & button.
Using KEYLESS-GO X
Touch recessed sensor surface :on the
door handle until the side windows and the
sliding sunroof or the panorama sliding sun-
roof are fully closed.
i Make sure you only touch recessed sensor
surface :.
X Make sure that all the side windows and the
sliding sunroof or panorama sliding sunroof
are closed.
X Vehicles with a panorama sliding sunroof:
touch recessed sensor surface :on the door handle again until the roller sunblinds of the
panorama sliding sunroof close.
X To interrupt convenience closing: release
recessed sensor surface :on the door han-
dle. Resetting the side windows
If a side window can no longer be closed fully,
you must reset it.
X Close all doors.
X Turn the key to position 1or 2in the ignition
lock.
X Pull the corresponding switch on the door
control panel until the side window is com-
pletely closed (Y page 94).
X Hold the switch for an additional second.
If the side window opens again slightly: X Immediately pull the corresponding switch on
the door control panel until the side window is completely closed (Y page 94).
X Hold the switch for an additional second.
X If the corresponding side window remains
closed after the button has been released, the
side window has been reset correctly. If this is
not the case, repeat the steps above again. Problems with the side windows
G
WARNING
If you close a side window again immediately after it has been blocked or reset, the side window
closes with increased or maximum force. The reversing function is then not active. Parts of the
body could be trapped in the closing area in the process. This poses an increased risk of injury or even fatal injury.
Make sure that no parts of the body are in the closing area. To stop the closing process, releasethe switch or push the switch again to reopen the side window. 96
Side windowsOpening and closing

G
WARNING
The reversing feature does not react:
R to soft, light and thin objects, e.g. small fin-
gers
R over the last 4 mm of the closing movement
R during resetting
R when closing the sliding sunroof again man-
ually immediately after automatic reversing
This means that the reversing feature cannot
prevent someone being trapped in these sit-
uations. There is a risk of injury.
When closing make sure that no body parts
are in the closing area.
If someone is trapped:
R release the switch immediately or
R press the switch in any direction during the
automatic closing process
The closing process is stopped. Operating the sliding sunroof
Opening and closing :
To raise
; To open
= To close/lower
X Turn the key to position 1or 2in the ignition
lock.
X Press or pull the 2switch in the corre-
sponding direction.
If you press the 2switch beyond the point of
resistance, an automatic opening/closing proc-
ess is started in the corresponding direction.
You can stop automatic operation by pressing/
pulling again. The sun protection cover automatically opens
along with the sliding sunroof. You can open or
close the sun protection cover manually when
the sliding sunroof is raised or closed.
You can continue to operate the sliding sunroof
after switching off the engine or removing the
key. This function remains active for five
minutes or until the driver's or front-passenger
door is opened.
Rain-closing feature When the key is in position
0in the ignition lock
or is removed, the sliding sunroof closes auto-
matically:
R if it starts to rain
R at extreme outside temperatures
R after six hours
R if there is a malfunction in the power supply
The rear of the sliding sunroof is then raised in
order to ventilate the vehicle interior.
If the sliding sunroof is obstructed when being
closed by the rain-closing feature, it opens again
slightly. The rain-closing feature is then deacti-
vated.
The sliding sunroof does not close if:
R it is raised at the rear.
R it is blocked.
R no rain is falling on the area of the windscreen
being monitored by the rain sensor, e.g.
because the vehicle is under a bridge or in a
carport.
Resetting !
If the sliding sunroof still cannot be opened
or closed fully after resetting, contact a quali- fied specialist workshop.
Reset the sliding sunroof if it does not operate
smoothly.
X Turn the key to position 1or 2in the ignition
lock.
X Raise the sliding sunroof fully at the rear
(Y page 98).
X Keep the 2switch pressed for another
second.
X Make sure that the sliding sunroof can be fully
opened and closed again (Y page 98).
X If this is not the case, repeat the steps above
again. 98
Sliding sunroofOpening and closing

Operating the panorama sliding sun-
roof
Opening and closing :
To raise
; To open
= To close/lower
The panorama sliding sunroof can only be
opened when the roller sunblind is open.
X Turn the key to position 1or 2in the ignition
lock.
X Press or pull the 2switch in the corre-
sponding direction.
If you press/pull the 2switch beyond the
point of resistance, automatic operation is star-
ted in the corresponding direction. You can stop automatic operation by pressing/pulling again.
Automatic operation for raising is only available
only when the panorama sliding sunroof is
closed.
Rain-closing feature When the key is in position
0in the ignition lock
or is removed, the panorama sliding sunroof
closes automatically:
R if it starts to rain
R at extreme outside temperatures
R after six hours
R if there is a malfunction in the power supply
The panorama sliding sunroof remains raised at
the rear in order to allow ventilation of the vehi-
cle interior.
If the panorama sliding sunroof is obstructed
when being closed by the rain-closing feature, it opens again slightly. The rain-closing feature is
then deactivated. The panorama sliding sunroof does not close if:
R it is raised at the rear.
R it is blocked.
R no rain is falling on the area of the windscreen
being monitored by the rain sensor, e.g.
because the vehicle is under a bridge or in a
carport. Operating the panorama sliding sun-
roof roller sunblinds
Important safety notes G
WARNING
Parts of the body could become trapped
between the roller sunblind and frame or slid- ing sunroof during automatic opening or clos-
ing. There is a risk of injury.
When opening or closing, make sure that no
body parts are in the sweep of the roller sun- blind.
If someone is trapped:
R release the switch immediately or
R press the switch in any direction during the
automatic opening/closing process
The opening/closing process is stopped.
The roller sunblinds shield the vehicle interior
from sunlight. The roller sunblinds can only be
opened and closed together when the pano-
rama sliding sunroof is closed.
Roller sunblind reversing feature The roller sunblinds are equipped with an auto-
matic reversing feature. If a solid object blocks
or restricts the roller blind during the closing
process, the roller blind opens again automati-
cally. However, the automatic reversing feature
is only an aid, not a substitute for your attention
when closing the roller sunblind. G
WARNING
The reversing function does not react in par-
ticular to soft, light and thin objects, e.g. small fingers. This means that the reversing featurecannot prevent someone being trapped in
these situations. There is a risk of injury. Sliding sunroof
99Opening and closing
Z

When closing the roller sunblind, make sure
that no body parts are in the sweep.
If someone is trapped:
R release the switch immediately or
R press the switch in any direction during the
automatic closing process
The closing process is stopped.
Opening and closing roller sunblinds :
To open
; To open
= To close
X Turn the key to position 1or 2in the ignition
lock.
X Press or pull the 2switch in the corre-
sponding direction.
If you press/pull the 2switch beyond the
point of resistance, automatic operation is star- ted in the corresponding direction. You can stop
automatic operation by pressing/pulling again.
Resetting the panorama sliding sunroof
and the roller sunblinds !
If the panorama sliding sunroof and the
roller sunblinds cannot be fully opened or
closed after resetting, contact a qualified spe- cialist workshop.
Reset the panorama sliding sunroof and the
roller sunblinds if the panorama sliding sunroof
or the roller sunblinds do not move smoothly.
X Turn the key to position 1or 2in the ignition
lock.
X Pull the 2switch repeatedly to the point of
resistance in the direction of arrow =until
the panorama sliding sunroof is fully closed.
X Keep the 2switch pulled for an additional
second.
X Pull the 2switch repeatedly to the point of
resistance in the direction of arrow =until
the roller sunblinds are fully closed.
X Keep the 2switch pulled for an additional
second.
X Make sure that the panorama sliding sunroof
and the roller sunblinds can be fully opened
again.
X If this is not the case, repeat the steps above
again. Problems with the sliding sunroof
Your vehicle may be fitted with a sliding sunroof or a panorama sliding sunroof. In the following
section, the term "sliding sunroof" refers to both types of sliding sunroof. G
WARNING
If you close the sliding sunroof again immediately after it has been blocked or reset, the sliding
sunroof closes with increased or maximum force. The reversing feature is then not active. Parts of the body could be trapped in the closing area in the process. This poses an increased risk of
injury or even fatal injury.
Make sure that no parts of the body are in the closing area.
If someone is trapped:
R release the switch immediately or
R press the switch in any direction during the automatic closing process
The closing process is stopped. 100
Sliding sunroofOpening and closing

Correct driver's seat position
G
WARNING
You could lose control of the vehicle while
driving if you:
R adjust the driver's seat, steering wheel or
mirrors
R fasten the seat belt
There is a risk of an accident.
Adjust the driver's seat, head restraint, steer-
ing wheel and mirrors and fasten your seat
belt before starting the engine. Observe the following when adjusting steering
wheel
:, seat belt ;and driver's seat =:
R you are as far away from the driver's airbag as
possible
R you are sitting in an upright position
R your thighs are slightly supported by the seat
cushion
R your legs are not entirely stretched and you
can depress the pedals properly
R the back of your head is supported at eye level
by the centre of the head restraint
R you can hold the steering wheel with your
arms slightly bent
R you can move your legs freely
R you can see all the displays in the instrument
cluster clearly R
you have a good overview of traffic conditions
R the seat belt is pulled snugly against the body
and must be routed across the centre of your
shoulder and across your hips in the pelvic
area
Further related subjects:
R Electric seat adjustment (Y page 104)
R Adjusting the steering wheel mechanically
(Y page 113) or electrically (Y page 114).
R Fastening the seat belt correctly (Y page 46).
R Adjusting the rear-view mirror and exterior
mirrors (Y page 116).
R Vehicles with memory function: storing the
seat, steering wheel, exterior mirror and
Head-up Display settings with the memory
function (Y page 118). Seats
Important safety notes
G
WARNING
If children adjust the seats, they could
become trapped, especially if they are unat-
tended. There is a risk of injury.
When leaving the vehicle, always take the key with you and lock the vehicle. Never leave
children unattended in the vehicle.
The seats can still be adjusted when there is no
key in the ignition lock. G
WARNING
When adjusting a seat, you or another vehicle occupant could become trapped by the guiderail of the seat, for instance. There is a risk of
injury.
Make sure that no one has any part of their
body within the sweep of the seat when
adjusting it.
Observe the safety notes on "Airbags"
(Y page 47) and "Children in the Vehicle"
(Y page 57). 102
SeatsSeats, steering wheel and
mirrors

Adjusting the 4-way lumbar support
:
To raise the backrest contour
; To soften the backrest contour
= To lower the backrest contour
? To harden the backrest contour
You can adjust the contour of the front seat
backrests individually to provide optimum sup-
port for your back. Seat heating and seat ventilation
Switching the seat heating on/off G
WARNING
If you repeatedly switch on seat heating, the
seat cushion and backrest padding may
become very hot. The health of vehicle occu-
pants with limited temperature sensitivity or a limited ability to react to excessively high
temperatures may be affected or they may
even suffer burn-like injuries. There is a risk of
injury.
Therefore, do not switch on the seat heating
repeatedly. Driver's and front-passenger seat
Rear seats
The three red indicator lamps in the button indi- cate the heating level you have selected.
The system automatically switches down from
level 3to level 2after approximately eight
minutes.
The system automatically switches down from
level 2to level 1after approximately ten
minutes.
The system automatically switches off approx-
imately 35 minutes after it is set to level 1.
X Turn the key to position 1or 2in the ignition
lock (Y page 148).
X To switch on: press button:repeatedly
until the desired heating level is set.
X To switch off: press button:repeatedly
until all the indicator lamps go out.
i If the vehicle battery voltage is too low, the
seat heating may switch off. 112
SeatsSeats
, steering wheel and mirrors

Activating and deactivating seat venti-
lation The three blue indicator lamps in the buttons
indicate the ventilation level you have selected. X
Turn the key to position 1or 2in the ignition
lock (Y page 148).
X To switch on: press button:repeatedly
until the desired ventilation level is set.
X To switch off: press button:repeatedly
until all the indicator lamps go out.
i If the vehicle battery voltage is too low, the
seat ventilation may switch off.
i You can open the side windows and the slid-
ing sunroof using the "Convenience opening" feature (Y page 95). The seat ventilation of
the driver's seat automatically switches to the
highest level.
Problems with the seat heating or seat ventilation Problem
Possible causes/consequences and
M
MSolutions The seat heating or seat
ventilation has switched
off prematurely or can-
not be switched on. The on-board voltage is too low because too many electrical consum-
ers are switched on.
X Switch off electrical consumers that you do not need, such as the
rear window heating or interior lighting.
Once the battery is sufficiently charged, the seat heating or seat
ventilation will switch back on automatically. Steering wheel
Important safety notes
G
WARNING
You could lose control of the vehicle while
driving if you:
R adjust the driver's seat, steering wheel or
mirrors
R fasten the seat belt
There is a risk of an accident.
Adjust the driver's seat, head restraint, steer-
ing wheel and mirrors and fasten your seat
belt before starting the engine. G
WARNING
Children could become trapped by the steer-
ing wheel if they adjust it. There is a risk of
injury. When leaving the vehicle, always take the key
with you and lock the vehicle. Never leave
children unattended in the vehicle.
The electrically adjustable steering wheel can
still be adjusted when there is no key in the igni-
tion lock. Adjusting the steering wheel man-
ually
G
WARNING
The steering wheel may move unexpectedly if you adjust it while driving. This could cause
you to lose control of the vehicle. There is a
risk of an accident.
Make sure that the steering wheel is locked
before driving off. Never unlock the steering
wheel when the vehicle is in motion. Steering wheel
113Seats, steering wheel and mirrors Z

:
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 posi-
tion.
X Push release lever :up as far as it will go.
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) The steering wheel can also be adjusted when
the key is removed from the ignition lock.
i Further related subjects:
R EASY-ENTRY/EXIT feature (Y page 115)
R Storing settings (Y page 118) Steering wheel heating
Switching on/off X
Turn the key to position 2in the ignition lock
(Y page 148).
X To switch on/off: turn the lever in the direc-
tion of arrow :or;.
Indicator lamp =lights up or goes out.
Vehicles with KEYLESS-GO: when you switch off the ignition and open the driver's door, the
steering wheel heating is switched off.
Vehicles without KEYLESS-GO: when you
remove the key from the ignition lock, the steer-
ing wheel heating is switched off. 114
Steering wheelSeats
, steering wheel and mirrors