2012 MERCEDES-BENZ GL SUV light

Deactivating/activating ESP
®G
WARNING
If you deactivat eESP®
,E SP ®
no longer sta-
bilises the vehicle. There is an increased risk
of skidding and an accident.
Only deactivat eESP®
in th esituation sdescri-
bed in th efollowing. X
To switch off: press button:.
The å ESP®
OF Fw arnin glamp in the
instrumen tcluster lights up.
X To switch on: press button:.
The å ESP®
OFF warnin glamp in the
instrumen tcluster goes out.
ESP ®
is activated automatically when the
engin eisstarted.
The ECO start/stop fun ction switches the
engin eoff automaticall yifthe vehi cles tops
moving. When pulling away again, the engine
start sautomatically. ESP ®
remain sinits pre-
viousl yselected status. Example: if ESP ®
was
deactiva tedb efor ethe engine was switched
off ,ESP ®
remains deactivated when the
engine is switched on again.
If ESP ®
is deactivated and one or more wheels
start to spin, the ÷ESP®
warning lamp in
th ei nstrumen tcluster flashes. In such situa-
tions, ESP ®
will not stabilise th evehicle. It may be best to deact
ivateESP®
in the fol-
lowing situations:
R when using sno wchains
R in deep snow
R on sand or gravel
If you deactivate ESP ®
:
R ESP ®
no longe rimproves driving stab ility.
R traction control is still activated.
R ESP ®
still provides support when you
brake.
R engine torque is not limited and the drive
wheels are abl etospin. The spinnin gofthe
wheels resu ltsinac utting action for better
traction.
Off-roa dESP® An ESP
®
syste mspecif icall ys uited to off-road
terrain is activated automatically once the off-
road progra misactivate don:
R Vehicles without the ON&OFFROAD pack-
age (Y page252)
R Vehicles wit hthe ON&OFFROAD package
(Y page 253)
Off-road ESP ®
intervenes with adelay if there
is oversteerin gorundersteering ,thus improv-
ing traction.
ESP ®
trailer stabilisation G
WARNING
If roa dand weather conditions are poor,
trailer stabilis ation will not be able to prevent
the vehicle/trailer combination from swerv-
ing. Trailers with ahigh centre of gravit ycan
tip over before ESP ®
can detect this. There is
ar isk of an accident.
Always adap tyour driving style to the prevail-
ing road and weather conditions.
If your vehicle/trailer combination begins to
lurch, you can only stabilise the vehicle/
trailer combination by depressin gthe brake
firmly. Driving safety systems
67Safety Z

In this situation, ESP
®
assist syou and can
detec tifthe vehicle/trailer combination
begins to lurch. ESP ®
slows the vehicle down
by brakin gand limiting the engine outp ut until
the vehicle/trailer combinatio nhas stabi-
lised.
Trailer stabilisation is active above speeds of
about 60 km/h.
Trailer stabilisation does not work if ESP ®
is
deactivated or disabled because of amal-
function.
Crosswin dAssist Strong crosswinds can cause your vehicle to
deviate from astraight course. The crosswind
driving assistance function integrated into
ESP ®
significantly reduces thes eeffects.
ESP ®
intervene sautomatically according to
the direction and intensity of the crosswinds
affecting your vehicle.
When driving on straight roads or gentle
bends ,your vehicle is kept safel yonc ourse
by astabilising brake intervention.
Crosswind driving assistance is active above
av ehicle speed of 80 km /h.
Crosswind driving assistance does not work
if ESP ®
is deactivated or disabled because of
am alfunction. EBD (electronic brake force distribu-
tion)
i Observe the "Importan tsafety notes" sec-
tion (Y page 61). G
WARNING
If EBD has malfunctioned, the rear wheels can
still lock, e.g. under full braking. This increa-
ses the risk of skidding and an accident.
You should therefor eadapt your driving style
to the different handling characteristics. Have
the brak esystem checked at aqualified spe-
cialist workshop. Observe information regarding indicator and
warning lamps (Y
page 327) as well as dis-
play messages (Y page 293).
EBD monitors and controls the brake pres-
sure on the rear wheels to improve driving
stability while braking. ADAPTIVE BRAKE
ADAPTIVE BRAKE enhances braking safety
and offers increased braking comfort. In addi-
tion to the braking function, ADAPTIVE BRAKE
also has the HOLD function (Y page 211) and
hill start assist (Y page 162). PRE-SAFE
®
Brake
i Observe the "Important safety notes" sec-
tion (Y page 61).
PRE-SAFE ®
Brake is only available in vehicles
with DISTRONIC PLUS.
PRE-SAFE ®
Brake can help you to minimise
the risk of acollision with avehicle in front or
reduc ethe effect sofsuchacollision .IfPRE-
SAFE ®
Brake has detected arisk of collision,
you will be warned visually and acoustically
as well as by automatic braking. PRE-SAFE ®
Brake cannot prevent acollision withou tyour
interven tion.
This func tion will issue awarning if:
R at speeds of around 30 km/ horm ore over
several seconds, the distance maintained
to the vehicle travellin ginfront is insuffi-
cient.
The · distance warning lamp then lights
up in th einstrument cluster.
R at as peed of approximately 7km/h or
high er,y ou ver yquickly approach avehicle
in front.
An intermittent warning tone will then
sound and the ·distance warning lamp
will light up in the instrumen tcluster. 68
Driving safety systemsSafety

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

Key functions
:
& To loc kthe vehicle
; F To open/close the tailgate
= % To unlock the vehicle
X To unlock centrally: press the%but-
ton.
If you do not open the vehicle within
approximatel y40seconds of unlocking:
R the vehicle is locked again.
R the anti-theft system is primed again.
X To lock centrally: press the&button.
The key centrally locks/unlocks:
R the doors
R the tailgate
R the fuel filler flap
When unlocking, the tur nsignals flash once.
When locking, they flash three times.
You can also set an audible signal to confirm
that the vehicle has been locked. The audible
signal can be activated and deactivated using
the on-board computer (Y page 283).
When it is dark, the surroun dlighting also
comes on if it is activated in the on-board
computer (Y page 282). KEYLESS-GO
Genera lnotes Bear in mind that the engine can be started
by any of the vehicle occupants if there is a
KEYL ESS-GO key in the vehicle. Locking and unlockin
gcentrally You can start, lock or unlock the vehicle using
KEYL
ESS-GO .Todot his, you only need carry
the key with you. When you touc hthe surface
of the sensor sonthe vehicle' soutside door
handles ,KEYLESS-GO establishes aradio
connection between the vehicle and the key.
When the engine is started and whils tyou are
driving, KEYLESS -GOa lso check swhether a
valid key is in the vehicle by periodically
establishin gradio contact.
You can combine the KEYLESS-GO functions
with the functions of aconventional key.
Unlock the vehicle by using KEYLESS -GO, for
instance, and lock it usin gthe & button on
the key.
When locking or unlocking with KEYL ESS-GO,
the distance between the key and the corre-
sponding doo rhandle must not be greater
than 1m. X
To unlock the vehicl e:touch the inner
surface of the doo rhandle.
X To lock the vehicle: touch sensorsur-
face :.
X Convenience closing featu re:touch
recessed sensor surface ;for an exten-
ded period.
Further information on the convenience clos-
ing feature (Y page 90).
If you pull on the handl eofthe tailgate, only
the luggage compartmen tofthe vehicle is
unlocked. Key
77Opening and closing Z

X
Push release cat ch: in the direction of
the arrow and at the same time, remove
emergenc ykey element ;from the key. Ba
ttery of the key
Important safety notes G
WARNING
Batteries are toxic and contain caustic sub-
stances. For this reason, keep batteries out of
the reach of children.
If ab attery has been swallowed, visit adoctor
immediately. H
Environment
alnote Bat
teri es contain pollutants.
It is illegal to dispose of them
with the household rubbish.
They must be collec teds ep-
arately and disposed of in an
environmen tally responsible
recycling system. Dispose of batteries in an
environmentally responsible
manner
.Take discharged
batteries to aqualified spe-
cialist workshop or to acol-
lection point for used batter-
ies.
Mercedes-Benz recommends that you have
the batteries replaced at aqualified specialist
workshop. Checking the battery X
Press the &or% button.
The battery is working properly if battery
check lamp :lights up briefly.
The battery is discharge difbattery check
lamp :does not light up briefly.
X Change the battery (Y page 79).
i If the key battery is checked within the
signal reception range of the vehicle, press-
ing the &or% button:
R locks or
R unlocks the vehicle
i You can get abattery at any qualified spe-
cialist workshop.
Replacing the battery You require
aCR20253Vc ell battery.
X Take the emergenc ykey elemen tout of the
key (Y page 78). :
Battery compartment cover
; Emergency key element Key
79Openin gand closing Z

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

If th
eside window opens again slightly:
X Immediately pul lthe correspondin gswitch
on the door control panel until the side win-
dow is completely closed (Y page 89).
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, repea tthe steps
abov eagain. 92
Side windowsOpening and closing

Problems wit
hthe side windows G
WARNING
Closing the side windows wit hincrease dforc eorw ithout the anti-entrapment featur ecould lead
to seriou soreven fata linjury. Make sure that nobody can become trappe dwhen closing the side
windows. Problem Possible causes/consequences and
M Solutions
As
ide window cannot
be closed because it is
blocked by objec ts,e .g.
leave sinthe window
guide. X
Remove the objects.
X Close the side window. As
ide window cannot
be closed and you can-
not see the cause. If
as ide window is obstructed durin gclosing and reopen sagain
slightly:
X Im me diately after the window blocks, pull the corresponding
switc hagain until the side window has closed.
The side window is closed with increased force.
If as ide window is obstructed again durin gclosing and reopens
again slightly:
X Im me diately after the window blocks, pull the corresponding
switc hagain until the side window has closed.
The side window is closed without the anti-entrapmen tfeature. Sliding sunroof
Important safet
ynotes G
WARNING
Make sure that nobody can become trapped
when openin gand closing the sliding sunroo f.
If there is arisk of entrapment ,release the
switch immediately .Durin gautomatic opera-
tion, push the switch briefly in any direction
to stop the sliding sunroof. G
WARNING
The glass in the panorama sunroof could
break in an accident .Ifyou are not wearing a
seat belt, ther eisar isk that you could be
thrown through the openin ginthe even tofthe
vehicle over turning.Therefore, always wear a
seat belt to reduce the risk of injuries. G
WARNING
Children coul dinjure themselves if they oper-
ate the sliding sunroof.
Never leave children unsupervise dint he vehi-
cle. Always tak ethe key with you when leaving
the vehicle, even if you ar eonly leaving it for
as hort time.
! Only open the panoram asliding sunroof
if it is free of snow and ice. Otherwise, mal-
func tions ma yoccur.
Do not allo wanything to protrude from the
sliding sunroof. Otherwise, the seals could
be damaged.
i Resonance noises can occur in addition
to the usua lairflow noises when the sliding
sunroof is open. They are caused by minor
pressure fluctuations in the vehicle interior. Slidin
gsunroof
93Openingand closing Z