2012 MERCEDES-BENZ GL SUV brake

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

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

The hazar
dwarning lamps automatically
switch on if:
R an airbag is deployed.
R the vehicle decelerates rapidly from a
spee dofm ore than 70 km /hand come sto
as tandstill.
The hazard warning lamps switch off auto-
maticall yifthe vehicle reaches aspeed of
over 10 km/ hagain after afull brake appli-
cation.
i The hazard warning lamps still operate if
the ignition is switched off. Headlamp cleanin
gsystem
Th eh eadlamps are cleane dautomaticall yif
the "Wip ewithw ashe rfluid" function is oper-
ated fiv etimes (Y page 131 )while the lights
ar eona nd the engine is running. Whe nyou
switc hoff th eignition, the automatic head-
lam pcleaning system is reset and countin gis
resumed from 0. Intelligent Light Sys
tem
General notes Th
eI ntelligent Light System is asystem that
adjusts the headlamps automatically to suit
the prevailing drivin gand weather conditions.
It offers advanced functions for improved illu-
mination of the road surface, e.g. depending
on the vehicle speed or weather conditions.
The system includes the active light function,
cornering light function, motorway mode and
extended range foglamps. The system is only
active when it is dark.
You can activate or deactivate the "Intelligent
Light System" using the on-board computer
(Y page 281). Active light function
The active light function is
asystem 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 recognise pedes-
trians, cyclists and animals.
Active: when the lights are switched on.
Cornering light function The cornering ligh
tfunction improves the illu-
mination of the road over awide angle in the
direction you are turning, enabling better vis-
ibility in tight bends, for example. It can only
be activated when the dipped-beam head-
lamps are switched on.
Active:
R if you are drivin gatspeeds below
40 km/ hand the turn si gnal is activatedor
the steerin gwheel is turned.
R if you ar edriving at speeds between
40 km/h and 70 km/h and tur nthe steer-
ing wheel. Exterior lighting
123Lightsand windscreen wipers Z

Overview of bulb replacement
–bulbs
Yo uc an replace the following bulbs. The
details for the bul btype can be found in the
legend. Halogen headlamps
:
Dipped-bea mheadlamp: H7 55 W
; Main-beam headlamp: H7 55 W
= Side lamps/par king lamp: W5WBV Tail lamps
:
Brake lamp: P21W-L Replacing the fron
tbulbs
Fitting /removing the cover on the front
wheel arch You must remov
ethe cover from the front
wheel housing before you can change the
front bulbs. X
To remove: switch off the lights.
X Tur nthe front wheels inwards.
X Remov esecuring pin ;using asuitable
tool.
X Slid ecover :up and remove it.
X To fit: insertcover :again and slide it
down until it engages.
X Insert securin gpin; .
Dipped-beam headlamps (halogen
headlamps) X
Remove the cove rinthe front whee larch
(Y page 129).
X Turn housing co ver:anti-clockwise and
pull it out.
X Turn bulb ho lder;anti-clockwise and pull
it out.
X Take the bulb ou tofbulb holder ;.
X Insert the new bulb int obulb holder ;.
X Insert bulb holder ;into the lamp and turn
it clockwise. Replacin
gbulbs
129Lightsand windscreen wipers Z

You must open the service flap in the luggage
compartmen
tbefor eyou can replac ethe
bulbs in the bra kelamp.
X To open: release service flap :at the top,
e.g. with ascrewdriver, and swing it down-
ward in the dire ction of the arrow.
X Right side: remove the first -aid kit before-
hand and pull the luggage net down.
X To close: reinsert service flap :.
Brake lamp X
Switch off the lights.
X Open the luggage compartment.
X Open the service flap (Y page 130).
X Turn bulb holder :anti-clockwise and
remove it.
X Take bulb out of bulb holder :.
X Insert the new bulb int obulb holder :.
X Insert bulb holder :intothe lamp and turn
it clockwise.
X Close th eservic eflap (Y page 130). Windscree
nwipers Switchin
gthe windscreen wiper son/
off G
WA
RNING
The windscree nwill not longer be wiped prop-
erly if the wiper blades are worn .This could
prevent you from observing the traffic condi-
tions, thereby causing an accident .Replace the wiper blades twic
eayear, ideally in spring
and autumn.
! Do not operate the windscreen wipers
when the windscreen is dry, as this could
damage the wiper blades. Moreover ,dust
that has collected on the windscreen can
scratc hthe glass if wipin gtakes place when
the windscreen is dry.
If it is necessary to switch on the wind-
screen wipers in dry weather conditions,
always operate them using washe rfluid.
! 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
windscreen with washer fluid after an auto-
matic car wash.
! Intermit tentwiping with rain sensor: due
to optical influences and the windscreen
becoming dirty in dry weather conditions,
the windscreen wipers may be activated
inadvertently. This could damage the wind-
screen wiper blades or scratc hthe wind-
screen.
For this reason, you should always switch
off the windscreen wiper sind ry weather. Combinatio
nswitch
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 Windscreen wipers
131Lights and windscreen wipers 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). Running-in notes
Impo
rtantsafety notes
New brak epads/brak epads and discs that
have been replaced only achieve optimum
brakin geffect after severa lhundre dkilome-
tres of driving. Compensate for the reduced
braking effec tbyapplying greater force to the
brak epedal. Th
ef irst 1,500 km
If you trea tthe engin ewith sufficient care
from the very start, you wil lberewarded with
excel lent performance for the remainder of
the engine' slife.
R Driv eatv arying vehicle speeds and engine
speeds for the first 1,500 km.
R Avoid overstraining the vehicle during this
period, e.g. driving at full throttle.
R Change gea ringood time, befor ethe rev
counter needl eisÔof the way to the red
area of the rev coun ter.
R Do not shift down agear manually in order
to brake.
R Try to avoid depressing the accelerator
pedal beyond the point of resistanc e(kick-
down).
R Shift ranges 3,2or 1should only be
engaged whe ndriving slowly, e.g .when
drivin ginm ountainou sterrain. Af
ter1 ,50 0km,you may graduall yaccelerate
the vehicle to full road and engine speeds.
Additional running-in notes for AMG vehicles:
R do not drive at speed sabove 14 0km/h for
th ef irst 1,50 0km.
R onl yallow the engine to reach amaximum
engine spee dof4,50 0rpm briefly.
R driv ethe vehicle mainly in drive program
C for the first 1,500 km.
i You should also observe these notes on
runnin ginift he engin eorparts of the drive
train on your vehicle have been replaced. Driving
Important safety notes
G
WARNING
Object sinthe driver's footwell can restric tthe
pedal travel or obstruct adepressed pedal.
The operatin gand road safety of the vehicle
is jeopardised. There is arisk of an accident.
Make sure that all objects in the vehicle are
stowed correctly, and that they cannot enter
the driver's footwell. Fit the floormats
securely and as specified in order to ensure
sufficien tclearanc efor the pedals. Do not use
loose floormat s. G
WARNING
Unsuita ble footwear can hinde rcorrect usage
of the pedals, e.g.:
R shoes with thic ksoles
R shoes with high heels
R slippers
There is arisk of an accident.
Wear suitable footwear to ensure correct
usage of the pedals. G
WARNING
If you switch off the ignition while driving,
safety-relevant func tions are only available
with limitations, or not at all. This coul daffect,
for example, the powe rsteering and the brake 158
DrivingDrivin
gand pa rking

boostin
geffect. Yo uwill require considerably
more effor ttosteer and brake. There is arisk
of an accident.
Do not switch off the ignition while driving. G
WARNING
If the parking brake has not been fully
released when driving, the parking brake can:
R overheat and cause afire
R lose its hold func tion.
There is arisk of fire and an accident .Release
the parking brak efully before driving off.
! Warm up the engine quickly. Do not use
the engine's full performance until it has
reached operating temperature.
Only set the automatic transmission to the
respective drive positions when the vehicle
is stationary.
Where possible, avoid spinning the drive
wheels when pulling away on slippery
roads. Othe rwise, you could damage the
drive train.
! AMG vehicles: at low engine oil temper-
atures (below +20 †), the maximum
engine speed is restricted in order to pro-
tec tthe engine. To protec tthe engin eand
maintain smoo thengine operation ,avoid
driving at full throttle when th eengine is
cold. Key positions
Key g
To remove the key
1 Power supply for some consumers, such
as the windscreen wipers
2 Ignition (power supply for all consumers)
and drive position
3 To start the engine
i If the key doe snot belong to the vehicle,
it can still be tur nedint he ignition lock.
However ,the ignition will not be switched
on. The engin ecannot be started.
KEYLESS-GO General notes
R
Do not keep the KEYLESS-GO key together
with:
- 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 fun ction of the key with
KEYL ESS-GO.
Do not keep the KEYLESS-GO key in the tem-
perature-controlled cup holder
(Y pag e347). Othe rwise, the KEYL ESS-GO
key will not be dete cted.
Vehicles with KEYLESS-GO are equipped with
ak ey featuri ngan integrated KEYLESS-GO
function and adetachable Start /Stopbutton. Driving
159Drivingand parking Z

The Start/Stop button must be inser
tedint he
ignition lock and the key with the integrated
KEYL ESS-GO function must be in the vehicle.
Pressing the Start/Stop butto nseveral times
in succession corresponds to the different
key positions in the ignition lock. This is only
the case if you are not depressing the brake
pedal.
If you depress the brak epedal and press the
Start/Stop button ,the engin estart simmedi-
ately.
i Thee ngine can be switched off whil ethe
vehicle is in motion by pressing and holding
the Start/ Stop button for three seconds.
This func tion operates independently of the
ECO star t/stop automatic engine switch-
off func tion.
Key positions with KEYLESS-GO Switching on th
epower supply
X If Start/ Stop button :has not yet been
pressed, this corresponds to the key being
removed from the ignition.
X Press Start/Stop button :once.
The power supply is switched on. You can
now activa tethe windscreen wipers, for
example.
i The powe rsupply is switched off again if:
R the driver' sdoor is opened and
R you press Start/Stop button :twice
when in this position Switching on th
eignition
X Press Start/Stop button :twice.
The ignition is switched on.
i The power supply is switched off again if:
R the driver' sdoor is opened and
R you press Start/Stop button :once
when in this position
Removing th eStart/Stop button You can remove the Start/Stop butto
nfrom
th ei gnition lock and star tthe vehicle as nor-
ma lusing the key.
X Remove Start/ Stop button :from ignition
lock ;.
i You do not have to remove the Start/Stop
button from the ignition lock when you
leav ethe vehicle.
i It is only possible to switc hbetween KEY-
LE SS -GO mode and key operation whe nthe
transmission is in position P.
i When you inser tStart/St op button :
int oignition lock ;,the system needs
approximatel ytwo seconds' recognition
time. You can then use Start/ Stop but-
ton :. 160
DrivingDriving and pa
rking