2011 MERCEDES-BENZ M-CLASS SUV steering

Displa
ymessages General notes
Display message sappear in th emultifunction display.
Display messages with graphic displays may be shown in simplified for minthe Owner's Manual
and ma ydiffer from the messages shown in the multifunction display.
Please respond in accordance with the displa ymessages and follow the additional notes in
this Owner's Manual.
Certain display messages are accompanied by an audible warning tone or acontinuou stone.
When you stop and par kthe vehicle, please observe the notes on the HOL Dfunction
(Y page 187 )and parking (Y page 160). Hiding display messages
You can hid esome display messages with alow priority.
X Press the aor% button on the steering wheel to hide the display message.
The display message is cleared.
Displa ymessages with ahigh priority are shown in red.
You cannot hide displa ymessages of the highest priority. The multifunction display shows
these messages continuously until the causes for the messages have been remedied. Message memory
The on-boar dcomputer save scertain display messages. You can call up the display messages
in the message memory .
X Press the =or; button on the steering wheel to select the Serv. menu.
If there are display messages, the multifunction display shows, for example, 2messages .
X Press the 9or: buttontos elect the entry, e.g. 2messages .
X Confirm with a.
X Press the 9or: buttontos croll through the displa ymessages.
When the ignition is switched off ,all displa ymessages are deleted apar tfrom some high-
priority displa ymessages. Once the causes of the high-priorit ydispla ymessages have been
rectified, the corresponding display messages are also deleted. Display messages
253On-boardcomputer and displays Z

Displa
ymessages Possible causes/consequences and
M Solutions
Á
Ma
x. speed 20 km/h G
Risk of accident
Yo ua re exceedi ngthe speed permissible for the selected off-road
level.
In addition ,the vehicle level display appears between the vehicle
icon and the display message, and awarning tone sounds.
X Adjust your driving style to the altered handling characteristics.
X Only make sligh tsteering movement sand avoid fast steering
movements.
X Do not excee d20km/h unti lthe vehicle has reached off-road
level 2. G
Risk of accident
The Ac tiveCurve System is faulty. The vehicle's handling charac-
teristics are severely impaired.
In addition, the vehicle level displa yappears between the vehicle
icon and the display message, and awarning tone sounds.
X Do not exceed amaximum spee dof20k m/h.
X Adjus tyour drivin gstyle to the altered handling characteristics.
X Visit aqualified specialist worksho pimmediately. Á
Vehicle rising
max. 20 km/h Th
ev ehicle is being adjusted to off-road level 3. The display mes-
sage inform syou of the maximum speed permissible for off-road
leve l3.
X Do not exceed amaximum spee dof20k m/h. Á
20 km/h max. Yo
ua re driving in off- road level 3. The displ aymessage informs
yo uo fthe maximum speed permissible for off-road level 3.
X Do not exceed amaximum spee dof20k m/h. g
Lowering
max.
20 km/h Th
ev ehicle is being lowered from off-road level 3tooff-road level
2. Th edisplay message informs you of the maximum speed per-
missible for off- road level 3.
X Do not exceed 20 km/ huntil the vehicl ehas reached off-road
level 2. 8
Different. lock
sys. Malfunction The differential lock is malfunc
tioning.
X Do not exceed amaximum spee dof80k m/h.
X Have th evehicle checked at aqualified specialist workshop. 270
Display messagesOn-board computer and displays

Displa
ymessages Possible causes/consequences and
M Solutions
Ru
nF latI ndicator inoperative Th
et yrep ressur eloss war ningsystem is faulty.
X Visit aq ualified specialist workshop. Ty
re pressures wil
lbed isplayed after
afew minute
sofd riving Th
et yrep ressur emonitor is mea suring thetyrep ressure.
X Drive on.
Th et yrep ressures appear in the multifunction displa yafter you
have been driving for afew minutes. Tyre press. monitor
inoperative The tyr
epres sure monito risfaulty.
X Visi taq ualifieds pecialist workshop. Tyre press. monitor
inoperativ
eNo wheel sensorsinop‐
erativ
eNow heel sensors Th
ew heels fit teddon ot have asuitable tyre pressure sensor. The
tyre pressure monitor is deactivated.
X Fit wheel swith suitable tyre pressure sensors.
The tyre pressure monitor is activated automatically after driv-
ing for afew minutes. Check
tyre(s) G
Risk of accident
The tyr epressure in one or more tyre shas dropped significantly.
The wheel position is displayed in the multifunction display.
Aw arning ton ealso sounds.
X Stop th evehicle without making any sudde nsteering or braking
mano euvres.P ay attention to the traffic conditions as you do
so.
X Correc tthe tyr epressure (Y page 361).
X If necessary, change awheel (Y page 363). Caution,
tyre defect G
Risk of accident
The tyr epressure in one or more tyre shas dropped suddenly. The
wheel position is displayed in the multifunc tion display.
X Stop the vehicle withou tmaking any sudde nsteering or braking
manoeuvres. Pay attention to the traffic conditions as you do
so.
X If necessary, change awheel (Y page 363). Rectify
tyre pressure The tyr
epressure is to olow in at least one of the tyres, or the tyre
pressure differen cebetween the wheels is too great.
X Check the tyr epressures at th enext opportunity. If necessary,
correc tthe tyr epressure (Y page 361). 278
Display messagesOn-boar
dcompu tera nd displays

Displa
ymessages Possible causes/consequences and
M Solutions
Wh
eels ensor(s) missing There is no signal from the tyre pressu
resensor of on eorseveral
wheels. The pressur eofthe affected tyre is notdispla yed in the
multifunction display.
X Have the faulty tyre pressure sensor replaced at aqualified spe-
cialist workshop. Tyre press. monitor
currentl
yunavail‐ able Due to
asour ceofrad io interference, no signals can be received
from the wheel sensors. The tyr epressure monito rist emporarily
malfunctioning.
X Drive on.
The tyr epressure monito rrestarts automatically as soon as the
problem has been solved. h
Tyre pressure Cau‐
tion
,tyre malf. G
Ris
kofa ccident
The tyre pressure in one or more tyres has dropped suddenly.
Aw arning ton ealso sounds.
X Stop th evehicle without making any sudde nsteering or braking
mano euvres.P ay attention to the traffic conditions as you do
so.
X If necessary ,change awheel (Y page 363). h
Tyre pressure
Chec
ktyre(s) G
Ris
kofa ccident
The tyre pressure in one or more tyres has dropped significantly.
X Stop the vehicle without making any sudde nsteering or braking
manoeuvres. Pay attention to the traffic conditions as you do
so.
X If necessary, change awheel (Y page 363).
X Chec kthe tyr epressure. If necessary, corre ct thetyre pressure
(Y page 361). h
Please correct
tyr
epressure Th
et yre pressure is too low in at leas tone of the tyres, or the tyre
pressure difference between the wheels is too great.
X Check the tyre pressures at the next opportunity. If necessary,
correct the tyre pressure (Y page361). Display messages
279On-boardcomputer anddisplays Z

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

Driving systems
Problem Possible causes/consequences and
M Solutions
·
The red distanc
ewarn-
in gl amp lights up while
th ev ehicle is in motion. G
Risk of acc
ident
The distanc etothe vehicle in frontistoo smal lfor the speed
selected.
X Increase the distance. ·
The red distance warn-
ing lam
plights up while
the vehicle is in motion.
Aw arning ton ealso
sounds. G
Ris
kofa ccident
The warning is issued if you approach astationar yvehicle or a
vehicle driving ahead of you at to ohigh aspeed.
X Be prepared to brak eimmediately.
X Pa yc areful attention to the traffic situation. You may have to
brak eort akee vasive action.
Mo reinformatio nabout DISTRONI CPLUS(Ypage 174) and
PRE-SAFE ®
Brake (Y page 66). Tyres
Problem Possible causes/consequences and
M Solutions
h
The yellow tyr
epres-
sure monitor warning
lamp is on. G
Risk of accident
Th et yrep ressure monitor has detected aloss of pressure in at
least on eofthe tyres.
X Stop the vehicl ewithout making any sudden steering or braki ng
manoeuvres .Pay attention to the traffic conditions as you do
so.
X Observ ethe additiona ldisplay messages in the multifunction
display.
X Check the tyre pressure. If necessary, correc tthe tyr epressure
(Y page 361).
X If necessary, change awheel (Y page 363). Wa
rning and indicator lamp sinthe instrument cluster
293On-boardcomputerand disp lays Z

healt
hofothers. Using an exterior aerial takes
into account current scientific discussions
relating to the possibl ehealth risk posed by
electromagnetic fields.
Mercedes-Ben zrecom mends the use of an
approved exterior aerial .This ensures:
R optimal mobile phone reception quality in
the vehicle
R mutua linfluences between the vehicle
electronics and mobil ephones ar emini-
mised
An exterior aerial has the following advan-
tages:
R it conducts the electromagnetic fields gen-
erated by awireless device to the exterior.
R the field strengt hinthe vehicle interior is
lower than in avehicle that does not have
an exterior aerial.
i There are various mobile phone brac kets
that may be fitted to your vehicle ;insome
cases, these ar ecountry-specific.
i Even if your vehicle is equipped with con-
venience telephony, you can connec ta
Blueto oth®
capable mobil ephone to Audio
20 or COMAND Online via the Bluetooth ®
interfac e.
More information on suitabl emobilephones,
mobile phone brackets and on connecting
Bluetooth ®
capable mobile phones to Audio
20 or COMAND Online can be obtained:
R at your Merc edes-Ben zServ iceC entre
R on the Internet at http://www.mercedes-
benz.com/connect
i The functions and service savailab lewhen
you use the phone depend on you rmobile
phone model and service provider. Inserting th
emobile phone X
Open the telephone compartment
(Y page 298).
X If required by the design of the mobile
phone bracket ,instal lthe slidin gadapter
(Y page 312).
X Insert the mobile phone into the mobile
phone bracket (see the separat emobile
phone bracke tinstallatio ninstructions).
If the mobil ephone is inser tedint he mobile
phone bracket ,you can speak to the person
you ar ecalling using the hands-free system.
i On some mobile phone brackets, you first
have to connect the mobile phone via Blue-
tooth ®
to am obile phone bracke t(see the
separate operating inst ructions for the
mobile phone bracke t).
On these mobile phone brackets, the
mobile phone does not hav etobeinserted
into the bracket for you to be able to use
the telephone functions .Inthis case ,the
charging func tion and aerial func tion are
not available.
Operating th emobile phone You can operate the telephone using the
6 and~ button sonthe multifunc tion
steering wheel. You can operate other mobile
phone func tions via the on-boar dcomputer
(Y page 242).
If you tak ethe key out of the ignition lock ,the
mobile phone stay sonb ut you can no longer
use the hands-free system.
If you are making acall and you would like to
take the key out of the ignition lock, first
remove the mobile phone from the bracket.
Otherwise, the call will be ended.
i When amobile phone bracke tisu sed that
is con nected to the mobile phone via Blue-
tooth ®
:ify ou wan ttocontinue acall in
"Private mode", you have to perform the
necessary steps on the mobile phone (see Features
311Stowingandfeatures Z

Maintainin
gthe time-dependen tservice
schedule:
X Not edown the service due date displayed
in the multifunc tion display befor ediscon-
necting the battery.
or
X Subtract the battery disconnection periods
from the servic edate shown on the displ ay
after reconnecting the battery.
i The ASSYST PLUS service interval displ ay
does not show any information on the
engine oil level .Observ ethe notes on the
engin eoil level (Y page 320).
Hiding aservice message X
Pres sthe % ora button on th esteer-
ing wheel.
Displaying service messages X
Switch th eignitio non.
X Press =or; on the steering wheel
to select the Serv. menu.
X Press 9or: to select the ASSYST PLUS submenu and press
ato confirm.
The service du edatea ppears in the multi-
function display.
Points to remember Resettin
gthe ASSYS TPLUS service inter-
val display
Aq ualified specialist workshop, e.g. a
Mercedes -Ben zS ervice Cent re,w ill reset the
ASSYST PLU Sservic einterval display after
the service work has bee ncarried out.
You can obtain further information ,e.g.
regarding servic ework,from aMercedes-
Benz Ser vice Centre or directly from
Mercedes-Benz.
! If the ASSYST PLUS servic einterval dis-
play has bee ninadvertently reset, this set-
ting can be corrected at aMercedes-Benz
Ser vice Centre. Have servic
ework carried out as described
in the Ser vice Boo klet. This may otherwise
lead to inc reased wear and damage to the
major assemblies or the vehicle.
Driving abroad
An extensive Mercedes -Ben zS ervice network
is also available in other coun tries. The
Service Hotline's curren ttelephone numbers
for use when you are abroa dare to be found
in th e"Mercedes-Ben zService24h" section
of the Ser vice Boo klet. AdBlue
®
service indicator
i For BlueTE Cvehicles only.
The BlueTE Cexhaus tgas aftertreatment
must be operated with the reducing agent
AdBlue ®
in order for it to function correctly.
Under normal operating conditions, afull tank
of AdBlue ®
should last until the nex tservice
due date.
Depending on how and where the vehicle is
used, there may be an inc rease in the
AdBlue ®
consumption, resulting in the next
servic edue date being brought forward.
Certain display messages sho wthat
AdBlue ®
must be topped up, e.g.
Refill AdBlue at worksh opSee Owner’s Manual
Refill AdBlue at worksho
pNostart in .. km
Aw
arning signal also sounds.
You can no longer star tthe engin ewhen the
AdBlue ®
supply has been used up
(Y page 268).
Top up AdBlue ®
(Y page 157).
Before taking atripw ithy our vehicle outside
Europe, have th eAdBlue ®
suppl ychec kedat
aq ualified specialist workshop. If necessary,
have the AdBlue ®
topped up. Before using
your vehicle for an extended period in coun-
tries outside Europe, con tact aq ualified spe-
cialist workshop.
Obser vethe note sonAdBlue®
(Y page 374). Maintenance
323Maintenanceand care Z