ignition MERCEDES-BENZ GL SUV 2012 User Guide

R
the doors are closed.
R the tailgate is closed.
Onl ythen is the tow-away protection
primed.
X Lock the vehicle with the key or KEYLESS-
GO.
Tow-awa yprotectio nisprimedafter
approximately 60 seconds.
Switchin goff X
To switc hoff wit hkey: unlock the vehicle
with the key.
or
X Insert the key into the ignition lock.
Tow-awa yprotectio nisswitched off auto-
matically.
X To switch off with KEYLESS-GO: unlock
the vehicle with KEYLESS-GO.
or
X Press the Start/Stop button on the dash-
board. The key must be inside the vehicle.
Tow-awa yprotectio nisswitched off auto-
matically.
Deactivating X
Remove the key from the ignition lock.
X Press button :.
Indicator lamp ;lights up briefly.
X Lock the vehicle with the key or KEYLESS-
GO.
Tow-awa yprotectio nisdeactivated. Tow-away protec
tion remains deactivated
until:
R the vehicle is unlocked again and
R ad ooriso peneda nd closed agai nand
R the vehicl eislocked again.
To prevent afalse alarm, deactivate the tow-
away protection if yo uloc ky ourv ehicle and
it:
R is being transported
R is being loaded onto aferry or car trans-
porter, for example
R is parked on amovable surface, e.g. in a
split-level garage. Interio
rmotion sensor
Function When the interior motion sensor is primed, a
visual and audible alarm is triggered if move-
ment is detected in the vehicle interior
.This
can occur if someon ereaches into the vehicle
interior, for example.
Activating X
Make sure that:
R
the side windows are closed.
R the hinged side windows are closed.
R the sliding sunroof/panorama sliding
sunroof is closed.
R there are no objects, e.g. mascots, hang-
ing on the rear-view mirror or on the grab
handles on the roof trim.
This will prevent false alarms.
X Make sure that: 72
Anti-theft systemsSafety

R
the sliding sunroof/panorama sliding
sunroo fisclosed.
R the doors are closed.
R the tailgate is closed.
Only then is the interior motion sensor
primed.
X Lock the vehicle with the key or KEYLESS-
GO.
The interior motion sensor is primed after
approximately 30 seconds.
Switching off X
To switch off with the key: unlock the
vehicle using the key.
or
X Insert the key into the ignition lock.
The interior motion sensor is switched off
automatically.
X To switch off with KEYLESS-GO: unlock
the vehicle using KEYLESS-GO.
or
X Press the Star t/Stopbutton on the dash-
board. The key must be inside the vehicle.
The interior motion senso riss witched off
automatically.
Deactivating X
Remove the key from the ignition lock.
X Press button :.
Indicator lamp ;flashes briefly.
X Lock the vehicle with the key or KEYLESS-
GO.
The interior motion sensor is deactivated. The interior motion sensor remains deactiva-
ted until:
R
the vehicle is unlocked agai nand
R ad ooriso peneda nd closed agai nand
R the vehicl eislocked again.
To prevent afalse alarm, deactivate the inte-
rio rm otion sensor if you lock your vehicle
and:
R people or animals remain in the vehicle.
R the side window sremai nopen.
R ah inged side window remains open.
R the sliding sunroof/panoram asliding sun-
roof remains open.
i UK only: your vehicle is equipped with a
double lock func tion. The doors can notbe
opened from the inside if the vehicle has
been locked with the key or with KEYLESS-
GO. Deac tivate the interior motion sensor
before you lock the vehicle .The doors can
then be opened from the insid eafter the
vehicl ehas been locked from the outside.
Observe the "Importan tsafety notes"
(Y page 82). Anti-thef
tsystems
73Safety Z

Usefu
linfor mati on
i This Owner's Manual describes all mod-
els, series and optional equipment for your
vehicle that were available at the time of
going to press. National variation sare pos-
sible. Note that your vehicl emay not be
equippe dwith all of the function sdescri-
bed. This is also the case for system sand
functions relevant to safety.
i Read the information on qualified special-
ist workshops: (Y page25). Key
Impo
rtantsafety notes G
WARNING
Only for the Unite dKingdom: if the vehicle
has been locked with the key or with KEY-
LESS-GO, the double lock function is activa-
ted as standard. It is then not possible to open
the doors from inside the vehicle.
Therefore, do not leave any people behind in
the vehicle, particularly children ,elderly peo-
ple or people requirin gspecial assistance. As
ar esult, they may not be able to free them-
selves in the even tofanemergency. They
could be seriously or eve nfatally injured by
prolonged exposure to extremely high or low
temperatures, for example. In this case, res-
cuing peopl efrom outsid ethe vehicle is diffi-
cult.
Deac tivate th einterior motion sensor before
you lock the vehicle. The doors can then be
opened from the inside after the vehicl ehas
been locked from the outside. G
WARNING
If children are left unsupervised in the vehicle,
they could: R
open adoor from inside the vehicle at any
time, even if it has been locked
R star tthe vehicle usin gakey which has been
left in the vehicle
R release the electric parking brake
They could thereby endanger themselves and
others. Never leave children unsupervised in
the vehicle. Alway stake the key with you
when leaving the vehicle, even if you are only
leaving it for ashort time. G
WARNING
If ak ey rin gistoo heavy or too large, the
weight actin gonthe key coul dcause it to turn
in the ignition lock or catc honthe steering
wheel. This coul dcause the engine to be
switched off suddenly. You may lose control
of the vehicle and cause an accident. Do not
attac hany heavy or large key rings to the key
that is inserted in the ignition.
R Do not keep the key:
-electronic devices, e.g. amobile phone
or anothe rkey
- metallic objects, e.g. coins or metal film
- metallic objects, e.g. ametal case.
This can affect the key' sfunctionality.
Do not keep the KEYLESS-GO key in the tem-
perature-controlled cup holder. Otherwise,
the KEYLESS-GO key will not be detected.
Keep the key away from strong magnetic
fields. Otherwise, the remot econtrol function
coul dbea ffected. 76
KeyOpenin
gand closing

Changing th
esettings of th elocking
system
You can chang ethe settings of th elocking
system. This mea nsthat only the driver' sdoor
and th efuel filler flap are unlocked when the
vehicle is unlocked. This is useful if you fre-
quently travel on your own.
X To change th esetting: press and hold
down the %and& buttons simulta-
neously for approximately six seconds until
the battery chec klamp flashes twice
(Y page 79).
i If the settin gofthe locki ngsystem is
changed within th esignal range of th evehi-
cle ,pressi ngthe & or% button:
R locks or
R unlock sthe vehicle
The ke ynow functions as follows:
X To unloc kthe drive r'sdoor: press the
% button once.
X To unlock cen trally:pressthe % but-
to nt wice.
X To lock centrally: pressthe & button.
The KEYLESS-GO function is changed as fol-
lows:
X To unlock th edriver's doo r:touch the
inner surface of the doo rhandle on the
driver' sdoor.
X To unlock centrally: touch theinner sur-
fac eo fthe door handle on th efront-
passenger door or th erear door.
X To lock centrally: touch theouter sensor
surface on one of the door handles
(Y page 77).
X To restor ethe facto rysettings: press
and hold down the %and& buttons
simulta neousl yfor appr oximate ly six sec-
onds until th ebatter ychec klamp flashes
twic e(Ypage 79). Emergency key element
General notes If th
evehicle can no longer be locke dor
unloc kedw itht he key ,use th eemergency
key element.
If yo uuse th eemergenc ykey elemen tto
unlock and open the driver' sdoor, the anti-
thef talarm system will be triggered
(Y page 71).
There are several ways to tur noff th ealarm:
X To turn the alarm off with the key: press
the % or& buttonont he key.
or
X Insert the key int othe ignition lock.
or
X To deactivat ethe alarm with KEYLESS-
GO: press th eStart/Stop button in the igni-
tion lock. The key must be in the vehicle.
or
X Lock or unlock the vehicle using KEYLESS-
GO. The key must be outside the vehicle.
If you unlock the vehicle using the emergency
key element, the fuel filler fla pwilln ot be
unlocked automatically.
X To unlock th efuel fil lerf lap: insert the
key into the ignition lock.
Removing the emergency key element :
Releas ecatch
; Emergency key element 78
KeyOpening and closing

Problem Possible causes/consequences and
M Solutions
The engin
ecannot be
started using the key. The on-board voltage is too low.
X
Switch off non-essential consumers, e.g. seat heating or interior
lighting ,and try to start the engine again.
If this doe snot work:
X Check the starter battery and charge it if necessary
(Y page 384).
or
X Jump-start the vehicle (Y page 386).
or
X Consult aqualified specialist workshop. The engine cannot be
started using KEYLESS-
GO. The key is in the
vehicle. Ad
oor is open. Therefore, the key can notb ed etected as easily.
X Close the door and tr ytostart the vehicle again. There is interferenc
efrom apowerfu lsource of radio waves.
X Start your vehicle with the key in the ignition lock. Doors
Important safety notes
G
WARNING
Only fo rthe Unite dKingdom: if the vehicle
has been locked with the key or with KEY-
LESS-GO, the double lock func tion is activa-
ted as standard. It is then not possible to open
the doors from inside the vehicle.
Therefore, do not leav eany people behind in
the vehicle, particularly children, elderly peo-
ple or people requiring special assistance .As
ar esult, they may not be able to free them-
selves in the event of an emergency. They
could be seriously or even fatally injured by
prolonged exposur etoextremely hig horlow
tempera tures, for example. In this case ,res-
cuin gpeople from outside the vehicle is diffi-
cult.
Deac tivate the interior motion sensor before
you lock the vehicle .The doors can then be
opened from the insid eafter the vehicl ehas
been locked from the outside. G
WARNING
If children are left unsupervised in the vehicle,
they could:
R open adoor from inside the vehicle at any
time, even if it has been locked
R star tthe vehicle usin gakey which has been
left in the vehicle
R release the electric parking brake
They could thereby endanger themselves and
others. Never leave children unsupervised in
the vehicle. Alway stake the key with you
when leaving the vehicle, even if you are only
leaving it for ashort time. Unlocking and opening th
edoors
from the inside
For all countries except the United King-
dom: you can open adoor from inside the
vehicle even if it has been locked.
If the vehicle has been locked with the key or
with KEYLESS -GO, opening adoor from the
inside will trigger the anti-thef talarm system.
Switch off the alarm (Y page 71).82
DoorsOpening and closing

tha
tthere is sufficient clearanc eabove and
behind the tailgate.
i Tailgate opening dimensions
(Y page 431).
Opening the tailgate automatically You can open the tailgat
eautomatically with
the key or the handle in the tailgate.
X Press and hold the Fbutton on the key
until the tailgate opens.
or
X When the tailgate is unlocked, pull the han-
dle and let it go again immediately.
Closing the tailgate automatically Closing and locking button (example: vehicle with
KEYLE
SS-GO)
: Closing button
; Locking button
X To clos e:press closing button :on the
tailgate.
or
X Press and hold the Fbutton on the key
unti lthe tailgat ecloses.
Vehicles with KEYL ESS-GO:you can simulta-
neously close and lock the tailgate.
X Press locking button ;on the tailgate.
If aK EYLESS-GO key is detected outside
the vehicle ,the tailgat ecloses and locks. All the doors must be shut and the key
located in the vicinity of the tailgate.
i The tailgate cannot be opened and closed
with the key if there is akey in the ignition.
If the tailgate touches an object while clos-
ing, the closing procedure is interrupted
and the tailgate reopens.
i IfaK EYLESS-GO key is detected in the
lugg age compartment, the tailgate wil lnot
lock. Opening/
closing automatically from
the inside
Important safety notes G
WARNING
Monitor the tailgate opening and closing pro-
cedures to make sure that nobody can
become trapped. To halt the opening or clos-
ing procedure, press or pull the tailgate's
remote operating button from the driver's
seat again.
! The tailgate swings upwards and to the
rear when opened. Therefore, make sure
that there is sufficient clearance above and
behind the tailgate.
i Tailgate opening dimensions
(Y page 431).
Opening and closing Luggage compartment
87Opening and closing Z

Side windows
Important safety notes
G
WARNING
Mak esure that nobody can become trapped
between the side window and the door frame
when aside window is opened. Do not touch
or lean against the side window during the
opening procedure. You could become trap-
ped between the side window and the door
frame as the side window moves down. If
there is arisk of becoming trapped, release
the switch or pull the switch upwards to close
the side window again. G
WARNING
Make sure that nobody can become trapped
as you close aside window. If there is arisk
of becoming trapped, release the switch or
press it again to open the side window again. G
WARNING
Children may injur ethemselves if they open
or close the side windows.
Never leav echildren unsupervised in the vehi-
cle. Always tak ethe key with you when leaving
the vehicle, even if you ar eonly leaving it for
as hort time. G
WARNING
Do not leav echildren unsupervised in the
vehicle, even if they ar esecured in achild
restraint system .The children could:
R be seriously or even fatall yinjured on parts
of the vehicle
R be seriously or even fatally injured by pro-
longed exposure to extremely hig hor
extremely low temperatures
If children open adoor, they could:
R seriously or even fatally injure other people
R get out of the vehicle and injure them-
selves, or be seriously or even fatally
injure dbya passing vehicle
Activat ethe child-proof locks/override fea-
tur eifc hildren ar etravelling in th evehicle. They could otherwise open doors or side win-
dows while the vehicle is in motion and
thereby injure themselves or others.
Opening and closin
gthe side win-
dows
Th es witches for all side windows are located
on the driver's door. There is also aswitch on
each door for the correspondin gside window.
The switches on the driver's door take prec-
edence. :
Front left
; Front right
= Rear right
? Rear left
X Turn the key to position 1or 2in the ignition
lock.
X To open: press the corresponding switch.
X To close: pull the corresponding switch.
i If you press the switch beyond the point
of resistance, an automatic opening/clos-
ing process is started in the corresponding
direction. You can stop automatic opera-
tion by pressing again.
i You can continue to operate the side win-
dows after switching off the engine or
removing the key. This func tion remains
active for fiv eminutes or until the driver's
or front-passenger door is opened.
i The side windows cannot be operated
from the rear when the override featur efor
the side window sisactivate d(Ypage 60). Side windows
89Opening and closing Z

Opening and closing th
ehinged side
windows
Important safet ynotes G
WARNING
Make sure that nobody can become trapped
as you close the hinged side windows. If there
is ar isk of becomin gtrapped ,release the
switch or push the switch again to reopen the
side window.
Opening and closing The hinged side windows are operated elec-
tri
ca lly from the driver's seat. X
Make sure that the key is in position 1or
2 in the ignition lock.
X To open fully: press switch:and release.
X To close fully: pull switch:and release.
X To stop the closing procedure: press
switch :again.
Bot hhinged side windows open fully.
i If the hinged side windows are blocked
when closing, the closing procedur eis
interrupted and the hinged side windows
open again fully. Convenienc
eopening feature
General notes You can ventilate the vehicle before you start
driving
.Todot his, the key is used to carry out
the followin gfunctions simultaneously:
R unlock the vehicle
R open the side windows
R open the hinged side windows
R open the sliding sunroof or the panorama
sliding sunroof and the roller sunblinds
R switch on the seat ventilation for the driv-
er's seat
i The convenience opening feature can
only be operated using the key. The key
must be close to the driver' sdoor handle.
Convenience opening feature X
Point the tip of the key at the driver's door
handle.
X Press and hold the %button until the
side window sand the sliding sunroo forthe
panorama slidin gsunroof are in the desired
position.
If the roller sunblinds of the panorama slid-
ing sunroof are closed ,the roller sunblinds
ar eo pened first.
X Press and hold the %button again until
the panorama sliding sunroof is in the
desired position.
X To interrup tconvenience opening:
release the %button. Convenienc
eclosing feature
Important safety notes G
WAR
NING
Whe nusing the convenience closing feature,
make sur ethat nobody can becom etrapped.
Procee dasfollows if ther eisar isk of entrap-
ment: 90
Side windowsOpening and clos
ing

With the key:
R
release the &button.
R press and hold the %button unti lthe
side windows and the slidin gsunroof or the
panorama sliding sunroof open again.
With KEYLESS-GO:
R release the senso rsurface on the door han-
dle.
R pull the door handle immediately and hold
it.
The side windows and the sliding sunroof
or the panorama sliding sunroof open.
Whe nyou lock the vehicle, you can simulta-
neously:
R close the side windows
R close the hinged side windows
R close the slidin gsunroof or the panorama
sliding sunroof
On vehicles with apanorama sliding sunroof,
you can then close the roller sunblinds.
Usin gthe key Th
ek ey must be close to the driver' sdoor
handle.
X Point the tip of the key at the driver's door
handle.
X Press and hold the &button until the
side window sand the sliding sunroo forthe
panorama slidin gsunroof are fully closed.
X Make sure that all the side windows and the
sliding sunroof or panorama sliding sunroof
are closed.
On vehicles with apanorama sliding sunroof:
X Press and hold the &button again until
the roller sunblinds of the panorama sliding
sunroof close.
X To interrupt convenienc eclosing:
release the &button. Using KEYLESS-GO The KEYL
ESS-GO key must be outside the
vehicle. All the doors must be closed. X
Touch recesse dsensor surface :on the
door handle until the side windows and the
sliding sunroof or the panorama sliding
sunroof are fully closed.
i Make sure you only touc hrecessed sen-
sor surface :.
X Make sure that all the side windows and the
sliding sunroof or panorama sliding sunroof
are closed.
On vehicles with apanorama sliding sunroof:
X Touch recessed senso rsurface :on the
door handle again until the roller sunblinds
of the panorama sliding sunroof close.
X To interrupt convenienc eclosing:
release recessed sensor surface :on the
door handle. Resetting the side windows
If as ide 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 89)
X Hold the switch for an additional second. Side windows
91Opening and clos ing Z

Change the position of the slidin
gsunroof
or open aside window. The noise will be
reduced or eliminated.
Your vehicle may be fitted with asliding sun-
roof or apanorama sliding sunroof. In this
section, the term "sliding sunroof" refers to
both types of sliding sunroof. Operating the sliding sunroof
Opening and closing Overhead control panel
:
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.
i If you press the 2switch beyond the
point of resistance, an automatic opening/
closing process is started in the corre-
sponding direction. You can stop automatic
operation by pressing 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.
i 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 featu
re If
the key is in position 0in the ignition lock
or if it is removed, the sliding sunroo fcloses
automatically:
R if it starts to rain
R at extreme outside temperatures
R after six hours
R if there is amalfunction in the power supply
The rear of the sliding sunroof is then raised
in order to ventilate the vehicle interior.
i If the sliding sunroof is obstructed while
being closed by the rain-closing feature, it
opens again slightly. The rain-closing fea-
ture is then deactivated.
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 wind-
screen being monitored by the rain sensor
(e.g. because the vehicle is under abridge
or in acarport).
Resetting !
If the sliding sunroof still cannot be
opened or closed fully after resetting, con-
tact aqualified specialist workshop.
Reset the sliding sunroof if it does not move
smoothly.
X Turn the key to position 1or 2in the ignition
lock.
X Raise the sliding sunroof fully at the rear
(Y page 94).
X Keep the 2switch presse dfor another
second.
X Make sure that the slidin gsunroof can be
fully opened and closed again (Y page 94).
X If this is not the case, repeat the steps
above again. 94
Sliding sunroofOpenin
gand closing