battery MERCEDES-BENZ M-CLASS SUV 2011 Owner's Manual

Problems wit
hthe fuel and fuel tank Problem Possible causes/consequences and
M Solutions
Fue
lisl eakin gfrom the
vehicle. G
Ris
kofe xplosion or fire
The fuel line or the fuel tan kisf aulty.
X Turn the key to position 0(Ypage 139 )inthe ignition lock
immediately and remove it.
X Do not restar tthe engin eunder 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 fiv elitres of diesel.
X Turn the ignition on for at least 10 seconds (Y page 139).
X Star tthe engin econtinuously for up to 10 second suntil it runs
smoothly.
If the engine doe snot start:
X Tur nthe ignition on again for approximatel y10seconds
(Y page 139).
X Start the engine again continuously for up to 10 seconds until
it run ssmoothly.
If th eengine doe snot star tafter three attempts:
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 72).
or
X Unlock the vehicle using the emergency key element
(Y page 74). The fuel filler flap is unlocked, but the opening mechanism is jam-
med.
X Consult aqualified specialist workshop. 156
RefuellingDrivin
gand parking

R
the seat belt is fastened.
R yo ud epress th eaccelerator pedal.
If the transmiss ioni sinp osition R,the boot
lid must be closed.
If your seat belt is not fastened ,the following
con ditions mus tbefulfilled to automatically
release the electri cparking brake:
R the driver's door is closed.
R yo uh aves hifted out of transmissio nposi-
tion Por you have previousl ydrive nfaster
than 3km/h.
Emergency braking The vehicle can also be braked durin
gan
emergenc yusingthe electric parking brake.
X While driving ,push handle :of the electric
parking brak e(Ypage 161).
i The vehicle is braked as lon gasyou keep
th eh andle of the elect ricp arking brake
pressed. The longer the elect ricp arking
brak ehandle is depressed, the greater the
brakin gforce.
During braking:
R aw arning tone sounds.
R the Releas eparking brake message
ap pe ars.
R the red !indicator lamp in the instru-
ment cluster flashes.
When the vehicl ehas been braked to astand-
still ,the electric parkin gbrake is engaged. Parkin
gupthe vehicle
If you le avet he vehicle parked up for longer
than fou rweeks, the batter ymay be damaged
by exhaustive discharge.
X Disconnect the battery ( Ypag e346) or
connect it to atrickl echarger.
i You can obtain information about trickle
chargers from aqualified specialist work-
shop, e.g. aMercedes-Ben zService
Centre. If you leave the vehic
leparked up for longer
than six weeks, the vehic lemay sufferd am-
age as aresult of lack of use.
X Visi taq ualifieds pecialist workshop and
seek advice. Driving tips
General driving tips
Coasting with the engine switched off G
WAR
NING
Never switch the engine off whil ethe vehicle
is in motion.
There is no power assista ncef or the service
brake when the engin eisnot run ning.
You will require considerably more effort to
brake and you could therefore los econtrol of
the vehicle and cause an accident. Engine oil
! Vehicles with adiesel particle filter:
If the vehicle is mostly driven for short dis-
tances, it is possible that malfunctions may
occur durin gthe automa ticc leaning of the
diesel particle filter. This can lead to engine
damage. Therefore, if you frequently drive
short distances, make sure to drive on
motorways or countr yroads for 20 minutes
at least ever y500 km. Brakes
Important safe tynotes G
WARNING
Do not change down for additional engine
brakin gonas lippery road surface. This could
cause the drive wheels to lose their grip and
the vehicle could skid. 162
Drivin
gtipsDriving and parking

R
the electrica lsystem in thee ngine com-
partment, the battery or the fuses are tam-
pered with.
R the battery is disconnected.
If you leave the vehicl eorpark it, deactivate
the HOLD function and secure the vehicle
against rolling away.
The electric parking brake secures the vehicle
automatically if the HOLD function is activa-
ted and:
R the driver' sdoor is open and the driver's
seat belt is unfastened.
R the engin eisswitched off, unless it is auto-
matically switched off by the ECO start/
stop func tion.
R as ystem fault occurs.
R the powe rsupply is not sufficient.
On steep uphill or downhill inclines or if there
is am alfunction, the transmission may also
automatically be shifted into position P.AIRMATIC package
General notes AIRMATIC enables
asuspension tuning set-
ting to be selected and regulates the damping
behaviou rand level of your vehicle. The sys-
tem comprises aminimum of two compo-
nents. These are ADS (Adaptive Damping Sys-
tem) (Y page 188 )and level control
(Y page 189) .Your vehicle ma yalso be equip-
ped with the Active Curv eSystem
(Y page 188).
Observe the notes on driving with atrailer
(Y page 226).
ADS (Adaptive Damping System) General notes
ADS adapts th
edamping characteristic sto
the curren toperatin gand driving situation. Thi
sd epends on:
R your drivin gstyle
R the road surface conditions
R the AD Ssetting
R the vehicle level setting
Your selection remains stored even if you
remov ethe key from the igni tion lock. X
Star tthe engine.
Sports tuning
The firmer suspension tunin ginSport mode
ensures even better contact with the road.
Select this mode when employing asporty
drivin gstyle, e.g. on winding country roads.
X Press button :.
Indicator lamp ;lights up. You have selec-
ted "Sports tuning". The vehicle is lowered
by 15 mm.
Comfort tuning
In comfort mode, the driving characteristics
of your vehicle are more comfortable. Select
this mode if you prefer amore com fortable
driving style ,but also when drivin gfast on
straight roads, e.g. motorways.
X Press button :.
Indicator lamp =lights up. You have selec-
ted "Comfort tuning". The vehicle is raised
by 15 mm.
Active Curve System The Active Curve System uses activ
estabil-
isers to optimis eboth drivin gcomfort and
vehicle agility. Depending on the AD Smode 188
Driving systemsDriving and parking

Vehicles with the AIRMATIC package
X
Make sure tha tthe transmission is in posi-
tion P.
X Engage the electric parkin gbrake.
X Start th eengine.
X Clos ethe doors and tailgate.
X Secur ethe trailer against rolling away.
X Remove the trailer cable and decouple the
trailer.
X Switc hoff th eengine. Folding in the ball coupling
i Fold the ball coupling back in if you are
not using the trailer tow hitch.
X Make sure that the vehicl eisstationary and
the trailer cables are disconnected.
X Place the protective cap on the ball cou-
pling.
X Ope nthe tailgate. X
Pull the release knob :until the ball cou-
plin gunlocks.
The ball coupling folds dow nfrom under the
rea rbumper. The indicator lamp on the
release knob flashes. X
Press the ball coupling in the direction of
the arrow until it engage saudibly behind
the bumper.
The indicator lamp on the release knob
goes out and the messag einthe multifunc-
tion display disappears. Trailer power supply
When it leaves the factory ,your vehicle's
trailer socket is equipped with apermanent
power supply and apower supply that is
switched on via the ignition lock.
The permanen tpower supply is supplied via
trailer socket pin 9.
The power supply that is switched on via the
ignition lock is supplied via trailer socket pin
10.
! You can con nect consumers with apower
ratin gofupto2 40Wtot he permanent
power supply and up to 18 0Wto the power
supply that is switched on via the ignition
lock.
You must not charge atrailer battery using
th ep ower supply.
The trailer's permanen tpower supply is
switched off in the even toflow vehicle supply
voltage and after six hour satthe latest.
You can obtai nfurther information about
installing the trailer electrics from aqualified
specialist workshop, e.g. aMercedes-Benz
Ser vice Centre. 230
Towing
atrailerDriving and parking

The following system
sare switche doff when
th er adar senso rsystem is deactivated:
R DISTRONIC PLUS (Y page 174)
R BAS PLUS (Y page 62)
R PRE-SAFE ®
Brake (Y page 66)
R Blind Spot Assist (Y page 208)
R Active Blind Spot Assist (Y page 212)
X Press the =or; button on the steer-
ing whee ltoselect the Settings menu.
X Press the :or9 button to select the
Vehicle submenu.
X Press the abutton to confirm.
X Press the 9or: button to select
Rada rsensor (See Owner's Man.): .
Yo uw ill see the selected setting: on or
off .
X Press the abutton to save the setting.
Heating menu Auxiliary heating depa
rtur et ime
This function is only availa bleo nvehicles with
auxiliar yheatin g(Ypage 130).
In the Heating submenu, you can select a
stored departure tim eorchange adeparture
time.
The auxiliar yheatin gtimer func tion calcu-
lates the switch-on tim eaccording to the out-
sid etemperature so that the vehicle is pre-
heated by the departure time. When the
departure tim eisreached, the auxiliar yheat-
ing continues to heat for afurther five
minutes and then switches off. The auxiliary
heating adopts the THERMATI Cor
THERMOTRONI Ctemperature setting.
You can switc hoff th eauxiliary heating by
using the remote control or the auxiliary heat-
ing button on the centre console. G
WARNING
Exhaust fumes are produced when the auxili-
ary heating is in operation. Inhaling these
exhaust fumes can be poisonous. You should
therefore switch off the auxiliary heating in confined spaces without an extraction sys-
tem, e.g.
agarage. G
WARNING
When operating the auxiliary heating parts of
the vehicle can get very hot. Make sure that
the exhaust system does not under any cir-
cumstances come into contact with easily
ignitable material such as dry grass or fuels.
The material could otherwise ignite and set
the vehicle alight. Choos eyour parkin gspot
accordingly.
Operating the auxiliary heating is thus pro-
hibited at fillin gstations or when your vehicle
is being refuelled .You must therefore switch
off the auxiliar yheatin gatf illing stations.
! Operating the auxiliary heating/ventila-
tion draws on the vehicle battery. After you
have heated or ventilated the vehicle a
maximum of two times, drive for alonger
distan ce.
i Switch the auxiliary heating on regularly
once amonthfor about 10 minutes.
Selecting th edepartur etime or deactivat-
ing aselected depa rtur et ime
X Press the =or; button on the steer-
ing wheel to select the Settings menu.
X Press the :or9 button to select the
Heating submenu.
X Press the abutton to confirm.
You will see the selected setting.
X Press the abutton to confirm.
X Press the :or9 button to select
one of the three departur etimes or Timer off (no timer active).
X Press the abutton to confirm.
When adeparture tim eisselected, the yel-
low indicator lam plights up on the auxiliary
heating button. 250
Menus and submenusOn-board computer and displays

Displa
ymessages Possible causes/consequences and
M Solutions
The yellow
!warning lamp lights up. The red !indicator
lamp flashes fo rabout 10 seconds after the electric parkin gbrake
ha sb een applied or released. It then goes out or remains lit.
The electric parkin gbrake is malfunctioning.
X Switch off th eignition and tur nitback on.
X Apply the electric parkin gbrake.
If it is not poss ible to apply the electric parkin gbrake:
X Shift th etransmission to P.
X Vis itaq uali fieds pecialist workshop.
If it is not possible to release the electric parkin gbrake:
X Releas ethe elec tricp arkin gbrake automaticall y(Ypage 16 1).
If th eelectric parkin gbrake can stil lnot be released:
X Consult aqualified specialist workshop. The yellow
!warning lamp lights up. If you manually apply or
release the electric parkin gbrake ,the red !indicator lamp
fla shes.
The electric parking brak eismalfunctioning. It is not poss ible to
apply the electric parking brake manu ally.
X Shift the transmission to P.
X Visit aquali fieds pecialist workshop. !
Pk
gb rake inopera‐ tive Th
ey ellow !warning lam plights up. The red !indicator
lamp flashes for about 10 seconds after the electric parkin gbrake
ha sb een applied or released. It then goes out or remains lit.
The electric parkin gbrake is malfunctioning ,e.g. because of over-
voltag eorundervoltage.
X Remove the cause for the overvoltage or undervoltage ,e.g. by
charging the battery or restarting the engine.
X Appl yorr elease the electric parkin gbrake.
If it remains impossibl etoapply or release the electric parking
brake:
X Swit choff the ignition and tur nitback on.
X Apply or release the electric parkin gbrake.
If th eelectric parkin gbrake can stil lnot be released:
X Consult aqualified specialist workshop. 258
Display messagesOn-board computer and displays

Displa
ymessages Possible causes/consequences and
M Solutions
# The battery is no
tbeing charged.
Aw arning ton ealso sounds.
Possible causes:
R fault yalternator
R torn poly-V-belt
R am alfunction in th eelectronics
X Stop th evehicle immediately, payin gattentio ntoroad and traf-
fic conditions, and switc hoff th eengine.
X Ope nthe bonnet.
X Chec kwhether the poly-V-belt is tor n.
If the poly-V -belt is torn:
! Do not continue driving. The engine could otherwise overheat.
X Consult aqualified specialist workshop.
If the poly-V-belt is OK:
X Visit aqualified specialist workshop. 4
Chec
keng. oil lev. when next
refuelling Th
eo il level has dropped to the minimum level.
Aw arning ton ealso sounds.
X Chec kthe oil level, at the latest when nex trefuelling
(Y page 320).
X If necessary, top up the engine oil (Y page 320).
X Hav ethe engin echecked at aqualified specialist worksho pif
the engine oil needs topping up more often than usual. 8
Reserv
efuel level Th
ef uel level has dropped into the reserve range.
Operation of the auxiliary heating is deactivated when the fuel level
drops into the reserve range.
X Refuel at the nearest filling station. C There is only
avery small amount of fuel in the fuel tank.
The auxiliary heatin gcannot be operated.
X Refuel at the nearest filling station without fail. ¸
Replace
air cleaner Vehicles with
adiesel engine: the engine air filter is dirty and must
be replaced.
X Visit aqualified specialist workshop. Display messages
267On-boardcomputer and displays Z

Vehicle
Display messages Possible caus
es/consequences and M Solutions
To start engine,
shift to either P
or N Yo
uh avea ttempte dtostart the engine with the transmission in
position Ror D.
X Shift the transmission to position Por N. Auxiliary battery
malfunction The auxiliary battery for the automatic transmission is no longer
being charged.
X Visit aquali fied sp ecialist worksho patthe nex toppor tunity.
X Until then, set the automatic transmission to position Pbefore
yo us witch off the engine.
X Before leaving the vehicle, appl ythe electr ic parking bra ke. Apply brake to
deselect Par
k(P) position Yo
uh ave attempted to mov ethe transmission selector lever to
position D,Ror Nwithout depressing the brake pedal.
X Depress the brake pedal. Vehicle
no
tinp osition P Th
ed river's door is open and th etransmission is in position R,N
or D.
Aw arning ton ealso sounds.
X Shift th etransmissio ntoposition P.
X Apply th eelectric parking brake. Wi
thoutc hanging gear,
consul
tworkshop Yo
uc annot change the transmission position due to amalfunction.
Aw arning ton ealso sounds.
If transmission position Dis selected:
X Drive to aqualified specialist workshop without shiftin gthe
transmissio nfromp osition D.
If transmission position R,Nor Pis selected:
X Consult aqualified specialist workshop. On
ly select Park (P)
whe
nv ehicl eis stationary Th
ev ehicle is moving.
X Pull ove rand sto pthe vehicle safel yassoonasp ossible, paying
attention to roa dand traffic conditions.
X Shift the transmissio ntoposition P. A The tailgate is open.
X Close the tailgate. 280
Display messagesOn-board computer and displays

Displa
ymessages Possible causes/consequences and
M Solutions
? G
Risk of acc
ident
The bonne tisopen. Awarning ton ealso sounds.
X Pull ove rand sto pthe vehicle safel yassoonasp ossible, paying
attention to roa dand traffic conditions.
X Appl ythe electric parkin gbrake.
X Close th ebonnet. Active bonnet mal‐
function Se
eOwn‐ er's Manual Th
ea ctive bonnet (pedestrian protection) is not active due to a
malfunction or because it has already bee ntriggered
(Y page 318).
X Visit aqualified special istworkshop. C At least one door is open.
Awarning ton ealso sounds.
X Close all doors. D
Po
wer steering mal‐
function See Own‐
er'
sM anual G
Risk of accident
Th ep ower steering assistance is faulty.
You will nee dtouse mor eforce to steer.
Aw arning ton ealso sounds.
X Chec kwhether you ar eable to apply the extr aforc erequired.
X If you are able to steer safely: carefully driveontoaqualified
specialist workshop.
X If you are unable to steer safely: do not drive on. Contact the
nearest qualified specialist workshop. &
inoperativ eBat‐ tery low Yo
uh ave attempted to switch on the auxiliary heating or to acti-
vate adeparture tim eusing the on-boar dcomputer after operating
the auxiliary heatin gtwice.
X Let the engine run for 10 seconds.
The auxiliary heating is operational again. The on-board voltage is too low. The auxiliary heating has switched
itself off or cannot be switched on (Y
page 130).
X Driv efor alonger distance.
The battery is being charged. The auxiliary heatin gisoperational
again as soon as the on-boar delectrical system voltage is suf-
ficient. &
inoperative
Refuel
vehicle The fuel level in the fuel tank is too low. The auxiliary heating can-
not be switched on (Y page 130).
X Refuel at the nearest filling station. Display messages
281On-boardcomputer and displays Z

If yo
uuse the sockets for long periods when
the engine is switched off ,the battery may
discharge.
X Tur nthe key to positi on1in the ignition
lock.
i An emergenc ycut-off ensures that the on-
board voltage does not drop too low. If the
on-board voltage is too low, the powe rto
the sockets is automaticall ycut. This
ensure sthat there is sufficien tpower to
star tthe engine.
Socket in th efront centre console !
The socke tisn ot intended for operating
the tyr einflation compresso r.X
To open: slide cover :to its foremost
position.
X Lift up the cover of socket ;.
X To clos e:pull cover :back as far as it will
go.
Socket in the rear-compartment centre
console X
Lift up the cover of socket :.
On vehicles with the Rear Seat Entertainment
System, there are two sockets in the rear-
compartment centre console.
Socket in the luggage compartment X
Lift up the cover of socket :. Mobile phone
Important notes G
WARNING
Observe the legal requirements of the country
in which you are currently driving regarding
operating mobile communications equipment
in av ehicle.
If it is permitted by law to operat ecommuni-
cations equipment while the vehicle is in
motion ,you must only do so if the traffic sit-
uation permits. Otherwise, you coul dbedis-
trac tedf rom th etraffic conditions ,cause an
accident and injure yourself and others.
Two-way radios and fax equipment used with-
out low-reflection exterior aerials can inter-
fere with the vehicle's electronics and thereby
jeopardise the operating safety of the vehicle
and your safety. Therefore, you must only use
this equipment if it is correctly connected to
as eparate reflection-f reee xterior aerial. G
WARNING
Excessive level sofelectromagnetic radiation
may cause damage to your health and the 310
FeaturesStowing and features