2012 MERCEDES-BENZ GL SUV ignition

Sta
rting the engine
Impor tant safety notes G
WARNING
Combustion engines emi tpoisonous exhaust
gases such as carbon monoxide. Inhaling
these exhaust gases leads to poisoning. There
is ar isk of fatal injury. Therefore never leave
the engine running in enclosed spaces with-
out sufficient ventilation.
i Vehicles with apetrol engine: the cat-
alytic converter is preheate dfor up to
30second safter acold star t.The sound of
the engin emay change during this time.
Automatic transmission X
Shift the transmission to position
P(Y page 168).
The transmission position displ ay inthe
multifunction displa yshows
P(Y page 168).
i You can also star tthe engin ewhen the
transmission is in position N.
Sta rting procedur ewith the key X
To star tapetrol engine: turn the key to
position 3in the ignition lock
(Y page 159 )and releas eita ss oon as the
engin eisrunning.
X To star tadiesel engine: turn the key to
position 2in the ignition lock
(Y page 15 9).
The % preglow indicator lam pinthe
instrumen tcluster lights up.
X When the %preglow indicator lamp
goes out, tur nthe key to position
3(Y page 159) and release it as soon as the
engin eisrunning.
i You can start the engine without preglow
if the engine is warm. Usin
gKEYLESS-GO to star tthe en gine G
WARNING
Your vehicle can be started using avalid KEY-
LESS-GO key. For this reason, children should
never be left unsupervised in the vehicle.
Always take the key with you when leaving the
vehicle, even if you are only leaving it for a
short time.
X Depress the brake pedal and keep it
depressed.
X To star tapetrol engine: press the Start/
Stop button (Y page 159) once.
The engin estarts.
X To start adiesel engine: press the Start/
Stop button (Y page 159)once.
Preglow is activated and the engin estarts.
i The Start/Stop button can be used to
start the vehicle without insertin gthe key
int ot he ignition lock .The key must be in
the vehicle and the Star t/Stop butto nmust
be inserted in the ignition lock. This mode
for startin gthe engin eoperates independ-
ently of the ECO start /stop automatic
engine start function. Pulling away
Automatic transmission G
WARNING
If the engine speed is above the idling speed
and you engag etransmission position Dor
R,t he vehicle coul dpull away suddenly. There
is ar isk of an accident.
When engaging transmission position Dor R,
always firmly depress the brake pedal and do
not simultaneously accelerate.
X Depress the brake pedal and keep it
depressed.
X Shift the transmission to position Dor
R(Y page 167). Driving
161Driving and parking Z

ECO start/stop function
Important safety notes G
WARNING
If th eengine is switched off automatically and
you exit the vehicle, the engine is restarted
automatically. The vehicle may begin moving.
There is arisk of accident and injury.
If you wish to exit the vehicle, always turn off
the ignition and secure the vehicle against
rolling away.
General notes :
ECO start/stop display
The ECO start/stop func tion switches the
engin eoff automatically if th evehicle stops
moving.
When pulling away again, the engine starts
automatically. The ECO start/stop function
thereby helps you to reduc ethe fuel con-
sumption and emissions of your vehicle.
Every tim eyou switc honthe engin eusing the
key or the Star t/Stop button, the ECO start/
sto pfunction is activated.
AMG vehicles: the ECO start/stop function
is only available in drive program C.
The system is operational when the ¤
symbol is shown in green in the multifunction
display.
AMG vehicles: the AMG menu in the multi-
function displa yadditionally shows the Stop/Star
tactive message.
If no tall condition sfor automatic engine
switch-of fare fulfill ed (Ypage 164), the
¤ symbol is shown in yellow in the multi-
function display. AMG vehicles:
the AMG menu in the multi-
function display additionally shows the Stop/ Star
tinactive message.
If th eECO start/stop function has been man-
uall ydeactivated (Y page 163) or if amal-
function has caused the system to be deac-
tivated, the ¤symbol is not displ ayed.
AMG vehicles: theStop/Start active or
Stop/Start inactive displa
ymessage
goes out in the AMG men uofthe multifunc-
tion display.
If the engin eisswitched off and the ¤
symbol is shown in green in the multifunction
display, the engine has been switched off
automatically .However, all vehicle systems
remain active.
Deactivating/activa ting th eECO start/
stop function ECO button
X
To switch off (except AMG vehicles):
press button :.
Indicator lamp ;on button :and the
¤ symbol in the multifunction display go
out.
X To switch on (except AMG vehicles):
press button :.
Indicator lamp ;lights up. If all conditions
for automatic engine switch-off
(Y page 164 )are fulfilled ,the ¤ symbol
is shown in gree ninthe multifunc tion dis-
play.
If not all conditions for automatic engine
switch-off ar efulfilled, the Driving
163Drivingand pa rking Z

Problems wit
hthe engine Problem Possible causes/consequences and
M Solutions
Th
ee ngine doe snot
start. The starter motor
can be heard. R
There is amalfunction in the engine electronics.
R There is amalfunction in the fuel supply.
X Before attempting to start the engine again, turn the key in the
ignition back to position 0or press the Start/Stop button
repeatedly until all indicator lamps in the instrumen tcluster go
out.
X Try to start the engin eagain (Y page 16 1).A void excessively
long and frequen tattempt stostartthe engine, as this will drain
the battery.
If the engine doe snot star tafter several attempts:
X Consult aqualified specialist workshop. The engine does not
star
t.The starter motor
can be heard. The
reserve fuel warning
lam pisl it and the fuel
gauge displa yshows 0. The fuel tan
kise mpty.
X Refue lthe vehicle. The engin
edoes not
start. You cannot hear
the starter motor. The on-boar
dvoltage is too low because the battery is too weak
or discharged.
X Jump-start the vehicle (Y page 386).
If the engin edoes not star tdespite attempt stojump-start it:
X Consult aqualified specialist workshop. The starter motor was exposed to
athermal load that was too high.
X Allo wthe starter motor to cool down for approximatel ytwo
minutes.
X Try to start the engine again.
If the engine still does not start:
X Consult aqualified specialist workshop. Vehicles with
apetrol
engine:
The engine is not run-
ning smoothly and is
misfiring. There is
amalfunction in the engine electronics or in amechanical
componen tofthe engin emanagement system.
X Only depress the accelerator pedal slightly.
Otherwise, non-combusted fuel may get into the catalytic con-
verter and damage it.
X Have the cause rectified immediately at aqualified specialist
workshop. 166
DrivingDrivin
gand pa rking

G
WARNING
Electrostati ccharge can lead to the creation
of sparks and to fuel vapours igniting. There
is ar isk of fire and explosion.
Touch the vehicle bodywork just before open-
ing the fuel filler cap. This wil ldischarge a
possible electrostatic charge.
! Do not use petrol to refuel vehicle swith a
diesel engine. Do not use diesel to refu el
vehicles wit hapetrol engine. Do not switch
on the igniti on if youaccidentally refuel
with the wrong fuel. Otherwise, the fuel will
ente rthe fuel system .Even small amounts
of th ewrong fue lcould result in damage to
the fuel system and the engine. The repair
cost sare high .Notif yaq ualified specialist
workshop and have the fuel tan kand fuel
lines draine dcompletely.
! Overfilling the fuel tan kcould damage the
fuel system.
! Take care not to spill any fuel on painted
surfaces .You coul dotherwis edamage the
paintwork.
! Use afilter when adding fuel from afuel
can. The fuel lines and/or the diesel injec-
tion system could otherwis ebeblocked by
particles from the fuel can.
If you overfill the fuel tank ,fuel could spray
out when the fuel pump nozzle is removed.
Further information on fuel and on fuel grades
can be found in the "Fuel" section
(Y page 423). Refuelling
Opening/closing the fuel filler flap :
To open the fuel filler flap
; To insert the fuel filler cap
= Fuel type to be refuelled
? Tyre pressure table
The fuel filler flap is unlocked or locked auto-
matically when you open or close the vehicle
with the key or using KEYLESS-GO.
The position of the fuel filler cap is displayed
8 in the instrument cluster. The arrow
next to the filling pump indicates the side of
the vehicle.
Opening X
Switch off the engine.
X Remove the key from the ignition lock.
X KEYLESS-GO: open the driver' sdoor.
This corresponds to key position 0:"key
removed".
The driver's doo rcan be closed again.
X Press the fuel filler flap in the direction of
arrow :.
The fuel filler flap swings up.
X Turn the fuel filler flap anti-clockwise and
remove it.
X Insert the fuel filler cap into the holder
bracket on the inside of filler flap ;.
X Completely insert the filler neck of the fuel
pump nozzle into the tank and refuel.
X Only fill the tank until the pump nozzle
switches off. Refuelling
175Driving and parking Z

Problems wit
hthe fuel and fuel tank Problem Possible causes/consequences and
M Solutions
Fue
lisl eakin gfrom the
vehicle. Th
ef uel line or the fuel tank is faulty.
G WARNING
Risk of explosion or fire.
X Turn the key to position 0in the ignition lock and remove it
immediately (Y page 159).
X Do not restart the engine under any circumstances.
X Consult aqualified specialist workshop. The engine does not
start. The fuel tank of
avehicle with adiesel engine has been run com-
pletely dry.
X Refuel the vehicle with at least 5litres of diesel.
X Turn the ignition on for approximately ten seconds
(Y page 159).
X Start the engin econtinuously for amaximum of ten seconds
until it runs smoothly.
If the engine does not star t:
X Tur nthe igni tion on again for amaximum of ten seconds
(Y page 159).
X Start the engine again continuously for amaximum of ten sec-
onds until it runs smoothly.
If the engine does not star tafter th reea ttempts:
X Consult aqualified specialist workshop. The fuel filler flap can-
not be opened. The fuel filler flap is not unlocked.
or
The key battery is discharged.
X
Unlock the vehicle (Y page 77).
or
X Unlock the vehicle using the emergency key element
(Y page 78). The fuel filler flap is unlocked, but the opening mechanism is jam-
med.
X
Consult aqualified special istworkshop. Refuelling
177Driving and parking Z

take
noff ag aina fter be ingo nly partially
emptied.
X Releas eAdBlue ®
refil lbottle :.
X Tur nAdBlue ®
refil lbottle :anti-clockwise
and remove it.
X Screw the protective cap onto AdBlue ®
refill bottle :again.
AdBlue ®
refill bottles can be obtained at many
fil ling stations or at aMercedes-Benz Ser vice
Centre. Refil lbottles withou tathreaded seal
offer no protection agains toverfilling.
AdBlue ®
may leak ou tasaresult of overfilling.
Mercedes Ben zoffers special refi llbottles
with athrea deds eal. Thes eare avail able at
any Mercedes-Benz Service Centre.
Closin gthe AdBlue ®
fil lerc ap X
Fit AdBl ue®
filler cap ;on th efiller neck
and turn it clockwise.
X To close the fuel filler flap, press it in the
direction of arrow :.
X Driv efaster than 15 km/h.
The Refill AdBlue Se eOwner' sMan‐ ual message goes ou
tafter approximately
one minute.
i If the Refill AdBlue See Owner's Manual message continues to be show
nin
the multifunctio ndisplay, you must top up
with mor eAdBlue ®
. Parking
Important safety notes
G
WAR
NING
If flammable materials such as leaves ,grass
or twigs are exposed to prolo nged contac tto
part soft he exhaust system that heat up, they
coul dignite. There is arisk of fire.
Park the vehicle so that no flammable mate-
rials come int ocontac twith parts of the vehi-
cle which are hot. Take particular care not to
park on dry grassland or harvested grain
fields. G
WARNING
If you switch off the ignition while driving,
safety-relevan tfunctions are only available
with lim itations, or not at all .This coul daffect,
for example, the powe rsteering and the brake
boosting effect .You will require considerably
mor eeffort to steer and brake. There is arisk
of an accident.
Do not switch off the ignition while driving. G
WARNING
If you leave children unsupervised in the vehi-
cle, they could set it in motion by, for example:
R releasing the parking brake
R shifting the automatic transmission out of
the parking position P
R starting the engine.
They could also operate the vehicle's equip-
ment .There is arisk of an accident and injury.
When leaving the vehicle, always take the key
with you and lock the vehicle. Never leave
children unsupervised in the vehicle.
! Am ovin gvehicle can lead to damage to
the vehicle or damage to the driv etrain. Parking
181Driving and parking Z

To ensur
ethat the vehicle is secured against
rolling away unintentionally:
R the electric parkin gbrake mus tbea pplied
R the tra nsmission must be in position Pand
the key must be remove dfrom th eignition
lock
R on steep uphill or downhil lgradients ,turn
the fron twheels towards the kerb
R on steep uphill or downhill gradients, the
front axl eofane mpty vehicl emust be
secured, for example with awheel chock
R on steep uphill or downhill gradients, the
rea raxle of aladen vehicle must be addi-
tionally secured, for example with awheel
choc k. Switching of
fthe engine
Important safety notes G
WARNING
Th ea utomatic transmission switches to neu-
tral position Nwhen you switch off the engine.
The vehicle may roll away .There is arisk of
an accident.
After switching off the engine, always switch
to parking position P.Prevent th eparked vehi-
cle from rolling awa ybyapplying the parking
brake.
Usin gthe key X
Engag ethe electric parkin gbrake.
X Shift th etransmission to position P.
X Turn th ekey to position 0in the igniti on
lock and remov eit.
The immobilise risactivated.
i If you switch the engine off with the trans-
mission in position Ror D,t he automatic
transmission shift stoNautomatically.
If you then open one of the front doors or
remove the key from the ignition, the auto-
matic transmission shifts to P.
If you shift the automatic transmission to
N before switching off the engine, the auto- matic transmission remains in
Neven if a
door is opened.
Usin gKEYLESS-GO X
Engage the electric parking brake.
X Shift the transmission to position P.
X Press the Start/Stop button (Y page 159).
The engine stops and all the indicator
lamps in the instrument cluster go out.
i If you use the Start/Stop button to switch
off the engine, the automatic transmission
shifts to Nautomatically. If you then open
one of the front doors, the automatic trans-
mission shifts to P.
i The engine can be switched off while the
vehicle is in motion by pressing and holding
the Start/Stop button for abou tthree sec-
onds. This func tion operates independently
of the ECO start/stop automatic engine
switch-of ffunction. Electric parking brake
General notes G
WARNING
If you leave children unsupervised in the vehi-
cle, they could set it in motion by, for example:
R releasing the parking brake
R shifting the automatic transmission out of
the parking position P
R startin gthe engine.
They coul dalso operate the vehicle's equip-
ment. There is arisk of an accident and injury.
When leaving the vehicle, always take the key
with you and lock the vehicle. Never leave
children unsupervised in the vehicle.
i The electric parking brake carries out a
func tion chec katregular interval swhen
the engin eisswitched off. Noises that
occur are normal. 182
ParkingDriving and parking

Engaging/releasing manually
X
To engage: push handle :.
When th eelectric parking brak eis
engaged ,the ! redi ndicator lamp lights
up in the instrumen tcluster.
i The electric parking brak ecan also be
applied when the key is removed.
X To release: pull handle:.
The red !indicator lamp in the inst ru-
ment cluster goe sout.
i The electric parking brake can only be
released:
R when the key is in position 1in the igni-
tion lock or
R the ignition was switched on using the
Start/Stop button.
To ensure that you do not roll backwards
when pulling away on an uphill slope, engage
the electric parking brake (Y page 162).
Engagin gautomatically Th
ee lectric parkin gbrake is engaged auto-
matically:
R if DISTRONIC PLUS brings th evehicle to a
standstill or
R if the HOL Dfunction is keeping the vehicle
stationary In addition, at least one of the following con-
ditions must be fulfilled:
R
the engine is switched off.
R the driver' sdoor is open and the seat belt
is not fastened.
R the vehicle is stationar yfor alengthy
period.
The red !indicator lam pint he inst rument
cluster lights up.
i Thee lectric parkin gbrake is not automat-
icall yapplied if the engine is switched off
by the ECO star t/stopfunction.
Releasing automatically The electric parking brake is released auto-
matically when all of the following conditions
are fulfilled:
R
the engine is running.
R the transmissio nisinp osition Dor R.
R the seat belt is fastened.
R you depress the accelerator pedal.
If the transmission is in position R,the boot
lid must be closed.
If your seat belt is not fastened, the following
conditions must be fulfilled to automatically
release the electric parkin gbrake:
R thed river's door is closed
R yo uh ave shifted out of transmission posi-
tion Por you have previously driven faster
than 3km/h
Emergenc ybraking Parking
183Drivingand pa rking Z