workshop MERCEDES-BENZ M-Class 2012 W166 Owner's Guide
[x] Cancel search | Manufacturer: MERCEDES-BENZ, Model Year: 2012, Model line: M-Class, Model: MERCEDES-BENZ M-Class 2012 W166Pages: 396, PDF Size: 14.48 MB
Page 124 of 396
Useful
information
i This
Operat or'sManual describesall
models andallstan dard andoption al
equipment ofyour vehicle available atthe
time ofpublication ofthe Operat or's
Manual. Country-specificdiffer encesare
possible. Pleasenotethat your vehicle may
not beequipped withallfeature s
descr ibed. Thisalso applies tosafet y-
related systemsand func tions. i
Please
readtheinfor mation onqualified
specialist workshops(Ypage 25). Overview
ofclimat econtrol systems Impor
tant safet ynotes G
WARN
ING Sever
econ dition s(e.g. strong airpollution )
may require replacem entofthe filter before
its scheduled replacementinterval. Aclogged
filt er will reduc ethe airvolume tothe interior
and thewindows couldfogup,impairin g
visibilit yand endan geringyou and others.
Have ablock edfilterreplac edataMerc edes-
Ben zCent eras soon aspossible. G
WARN
ING Follow
therecom mended settings forheating
and cooling givenonthe following pages.
Other wise, thewindows couldfogup,
impairing visibilityandendanger ingyou and
other s.
Autom aticclimate control controls the
temper atureandthehumidity ofthe vehicle
int erior andfilters outundesirable
substanc esfrom theair.
Autom aticclimate control isonly operation al
when theengine isrunn ing9
.O ptimum
operation isonly achieved ifyou drive withthe
side windows andsliding sunroof /panorama
roof with power tilt/sliding panelclosed. i
Vent
ilate thevehicle forabrief period
during warmweather, e.g.using the
con venien ceopenin gfeature (Ypage 86).
This willspeed upthe coolin gproces sand
the desired vehicleinterior temper ature
will bereached morequickly. i
The
integrated filtercanfilter outmost
partic lesofdust andcomplet elyfilter sout
pollen. Aclogged filterreduc esthe amoun t
of air supplied tothe vehic leint erior .For
this reason, youshould alwaysobserve the
inter valforreplacing thefilter, which is
specified inthe Servic eBooklet .Asit
depends onenvironmen talconditions, e.g.
heavy airpollu tion, theinterval maybe
shorter thanstated inthe Service Booklet.
9 The residua lheat function canonly beactivated/deactivated whentheignition isswitched off. 122
Overview
ofclimat econ trol systemsClimate control
Page 131 of 396
norm
aland notasign tha tther eis a
ma lfunctio n. i
The
cooling with aird ehumidification
func tion uses refriger antR134a. This
coolant doesnotcontain
chlorof luorocarbon s,and therefore does
not damage theozon elayer.
Activating/d eactivating X
To activa te:press the¿/Á button.
The indicat orlamp inthe ¿/Á
button lightsup.
X To deactiva te:press the¿/Á
button .
The indicat orlamp inthe ¿/Á
button goesout.Thecooling withair
dehumidification function hasadelayed
switch -offfeature.
Problems withthecooling withair
dehum idificat ionfunction When
youpress the¿/Á button,the
indicat orlamp inthe button flashes three
times orremains off.You cannolonger switch
on the cooling withairdehumidification
func tion.
X Consult aqualified specialist workshop. Sett
ingclimat econtrol toaut omat ic G
WARN
ING If
you switch offthe cooling function,the
vehicle willnotbecooled whenweather
con ditions arewarm. Thewindows canfogup
more quickly. Window foggingmayimpair
visibility andendanger youand other s.
In automatic mode,thesettemper atureis
maint ained automatic allyatacon stan tlevel.
The system automatic allyregulates the
temper atureofthe dispensed air,the airflow
and theairdistribut ion.
Autom aticmode willachieve optimal
operation ifcooling withairdehumidification is
also activat ed.Ifdesired, coolingwithair
dehumidification canbedeactivat ed.
In the rear compart ment,you can also switch
climate control forthe rear seats toautomatic
mode usingtheà button .
X Turn theSmart Keytoposition 2in the
ignition lock.
X Set thedesired temperature.
X To activa te:press theà button .
The indicat orlamp inthe à button lights
up. Autom aticairdistribut ionand airflow
are activ ated. i
Autom
aticclimate control: when
automatic modeisactivat ed,you can
select aclimate modesetting
(Y page 129).
X To switch off:press the_ button .
or
X Press theI orK button .
The indicat orlamp inthe à button goes
out. Adju
sting theclimat emode settings
(AIR FLOW)
This function isonly available withautomatic
climate control.
The climate control settings areespecially
effec tiveathigh temper atures.
You canselect thefollowing climatecontrol
sett ings inautomatic mode:
FOCUS highairflow thatisset slightly
cooler
MED IUM medium airflow,standard setting
DIF FUS Elow airflow thatisset slightly
warmer andwith alower rateof
airflow Opera
tingtheclimate controlsystem
129Climate control Z
Page 140 of 396
Useful
information
i This
Operat or'sManual describesall
models andallstan dard andoption al
equipment ofyour vehicle available atthe
time ofpublication ofthe Operat or's
Manual. Country-specificdiffer encesare
possible. Pleasenotethat your vehicle may
not beequipped withallfeature s
descr ibed. Thisalso applies tosafet y-
related systemsand func tions. i
Please
readtheinfor mation onqualified
specialist workshops(Ypage 25). Br
eaking-in notes The
first 1000 miles (1500 km)
The more youlook after theengin ewhen itis
new, themore satisfiedyou willbewith its
perfor mancein the future.
R Driv eat varying vehiclespeeds andengin e
speeds forthe first 1000miles (1500km)
for this reason .
R Avo idovers trainingthe vehicle duringthis
period, e.g.drivin gat full throttle.
R Change gearingood time, atthe latest
when thetach omet erneedle is⅔o fthe
way tothe red area inthe tachomet er
displa y.
R Do not manually shifttoalower gearto
brake thevehicle.
R Only select shiftranges 3,2or 1when
driving slowly,e.g. inmountainous terrain.
Aft er1000 miles(1500 km),you can increase
the engine speedgraduall yand bring the
vehicle uptofull speed. i
You
should alsoobserve thesenoteson
runnin gin ifthe engine orparts ofthe drive
train onyour vehicle havebeen replaced. i
Always
observe therespect ivespeed
restr iction s. Driving
Import
antsafety notes G
WARNIN
G Make
sureabsolutely noobject sare
obstruct ingthe pedals' rangeofmovemen t.
Keep thedriver's footwell clearofall
obstacles. Ifthere areany floormats or
carpets inthe footwell, makesurethepedals
still have sufficient clearance.
During sudden drivingorbraking maneuvers
the object scould getcaught between the
pedals. Youcould thennolonger brakeor
accelerate. Thiscould leadtoaccident sand
injury. G
WARNIN
G On
slippery roadsurfaces, neverdownshift in
order toobtain braking action.Thiscould
result indrive wheel slipand reduced vehicle
cont rol.Your vehicle's ABSwillnotprevent
this type ofloss ofcont rol. G
WARNIN
G It
is dangerous toshift theautomatic
transm issionoutofparking position Por
neutral position Nifthe engine speedis
higher thanidlespeed. Ifyour footisnot firmly
on the brake pedal, thevehicle could
accelerate quicklyforward orinreverse. You
could losecontrolofthe vehicle andhit
someone orsomethin g.Only shiftintogear
when theengine isidling normally andwhen
your right footisfirmly onthe brake pedal.
! Warm upthe engine quickly. Donot use
the engine's fullperformanc euntil ithas
reached operating temperature.
Only shifttheautomatic transmission to
the desired driveposition whenthevehicle
is station ary.
Where possible, avoidspinnin gthe drive
wheels whenpulling awayonslippery
roads. Youcould otherwise damagethe
drive train. 138
DrivingDriving and parking
Page 145 of 396
Problems
withtheengine Problem Possible
causes/co nsequences andM Solutions
The
engine doesnot
start. Thestarter motor
can beheard. R
There isamalfunction inthe engine electron ics.
R There isamalfunction inthe fuel supply .
X Try tostart theengine again(Ypage 140). Avoid excessively
long andfrequent attemptsto start theengine asthese willdrain
the battery.
If the engine doesnotstart after several attempt s:
X Consult aqual ified specialist workshop, e.g.anauthorized
Mercedes-B enzCenter. The
engine doesnot
start. Youcannot hear
the starter motor. The
on-board voltageistoo low because thebattery istoo weak
or discharged.
X Jump-start thevehicle (Ypage 341).
If the engine doesnotstart despite attemptsto jump-st artit:
X Consult aqual ified specialist workshop, e.g.anauthorized
Mercedes-B enzCenter. The
starter motorwasexposed toathermal loadthatwastoohigh.
X Allow thestarter motortocool down forapproximately two
minutes.
X Try tostart theengine again.
If the engine stilldoes notstart:
X Consult aqual ified specialist workshop, e.g.anauthorized
Mercedes-B enzCenter. The
engine isnot
running smoothly and
is misfiring. There
isamalfunction inthe engine electron icsoramechanical
componen tof the engine management system.
X Only depress theaccelerator pedalslightly.
X Have thecause rectifiedimmediately ataqual ified specialist
workshop, e.g.anauthorized Mercedes-B enzCenter.
Otherwise, non-combusted fuelmay getinto thecatalytic
conv erter anddamage it. The
coolant
temperature gauge
shows avalue above
248 ‡(120 †). The
coolant levelistoo low. Thecoolant istoo hotand theengine
is no longer beingcooled sufficiently.
X Stop assoon aspossible andallow theengine andthecoolant
to cool down.
X Check thecoolant level(Ypage 315). Observe thewarning
notes asyou dosoand add coolant ifnecessary. Driving
143Driving and parking Z
Page 151 of 396
Problems
withthetransmission Problem Possible
causes/co nsequences andM Solutions
The
transm issionhas
problems shiftinggear. The
transm issionislosing oil.
X Have thetransm issioncheckedataqual ified specialist
workshop, e.g.anauthorized Mercedes-B enzCenter,
immediately. The
acceleration ability
is deteriorating.
The transm issionno
longer changes gear. The
transm issionisin emergency mode.
It is only possible toshift intosecon dgear andreverse gear.
X Stop thevehicle.
X Shift thetransm issiontoposition P.
X Switch offthe engine.
X Wait atleast 10seconds beforerestartingthe engine.
X Shift thetransm issiontoposition Dor R.
If D is selected, thetransm issionshiftsintosecon dgear; ifR is
selected, thetransm issionshiftsintoreverse gear.
X Have thetransm issioncheckedataqual ified specialist
workshop, e.g.anauthorized Mercedes-B enzCenter,
immediately. Refueling
Import
antsafety notes G
WARNING Gasoli
neand diesel fuelsarehighly flammable
and poisonous. Theyburnviolently andcan
cause serious injury.
Never allowsparks, flamesorsmoking
materials neargasoline ordiesel fuel!
Turn offthe engine beforerefueling.
Whenever youarearound gasoline ordiesel
fuel, avoid inhaling fumesandanyskin or
clothing contact.Extinguish allsmoking
materials.
Direct skincontactwith fuels andthe
inhalation offuel vapors aredamaging your
health. G
WARNING Overfilling
ofthe fuel tank maycreate
pressure inthe system whichcouldcause a
gas discharge. Thiscould cause thegasoline to
spray backoutwhen removing thefuel
pump nozzle,which couldcause personal
injury. G
WARNING Do
not filldiesel tankswith gasoline. Donot
mix diesel fuelwith gasoline. Otherwise the
fuel system andengine couldbedamaged. In
addition, thevehicle couldcatch fire.
! Donot use gasoline torefuel vehicles with
a diesel engine. Donot use diesel torefuel
vehicles withagasoline engine.Evena
small quantity ofthe wrong fuelwill
damage thefuel system andengine.
! Donot switch onthe ignition ifyou
accidentally refuelwiththewrong fuel.
Otherwise, thefuel willenter thefuel lines.
Notify aqual ified specialist workshop and
have thefuel tank andfuel lines drained
completely. Refueling
149Driving and parking Z
Page 154 of 396
Problems
withfuelandthefuel tank Problem Possible
causes/co nsequences andM Solutions
Fuel
isleaking fromthe
vehicle. G
Risk
ofexplosion orfire The
fuel lineorthe fuel tank isdefective.
X Turn theSmartK eytoposition 0(Ypage 139)inthe ignition lock
immediately andremove it.
X Do not restart theengine underanycircumst ances.
X Consult aqual ified specialist workshop. The
fuel filler flap
cannot beopened. The
fuel filler flapisnot unlocked.
or
The SmartK eybattery isdischarged.
X Unlock thevehicle (Ypage 72).
or
X Unlock thevehicle usingthemechanical key(Ypage 75). The
fuel filler flapisunlocked, buttheopening mechanism is
jammed.
X Consult aqual ified specialist workshop. The
engine willnot
start. The
fuel tank ofavehicle withadiesel engine hasbeen run
completely dry.
X Refuel thevehicle withatleast 5.3USqt(5liters) ofdiesel.
X Turn theignition onfor atleast 10seconds (Ypage 139).
X Start theengine continuously forupto10 seconds untilitruns
smoothly.
If the engine doesnotstart:
X Turn theignition onagain forapproximately 10seconds
(Y page 139).
X Start theengine againcontinuously forupto10 seconds until
it runs smoothly.
If the engine doesnotstart after three attempt s:
X Consult aqual ified specialist workshop. DEF
Import antnotes onuse To
funct ionproperly, BlueTECexhaustgas
aftert reatment mustbeoperated withthe
reducing agentDEF. When
theDEFs upply hasalmo strun out,th e Che
ckAdditiveSee Operator's Man
ual mes
sage issho wninthe
mult ifunction disp lay.
When theDE Fs upply sinks toamin imum
leve l,th e Rem
aining Starts:16 mes
sage
is sho wninthemult ifunction disp lay. 152
Ref
uelin gDriving and parking
Page 155 of 396
When
the Remainin
gStarts: 16 message
is shown inthe multifunc tiondisplay, youcan
start theengine 16more times. IfDE Fis not
added, itwill notbepossible torestar tthe
engine. Fillthe DEF tank withapprox. 1gal
(3.8 l)DEF ,or have itfilled ataqual ified
specialist workshop. i
If
you drive thevehicle fasterthan10mph
(16 km/h), the Check
Additive See Operator's
Manual message
goesoff
after approximately oneminute.
Further information aboutBlueTEC exhaust
gas aftertr eatment andDEF isavaila bleatany
authorized Mercedes-Ben zCent er.
Adding DEF G
WARN
ING Make
sure
R DE Fdoes notcome intocontact with skin,
eyes, orcloth ing
R to keep DEFout ofthe reach ofchildren
If you and/or othershave come intocontact
with DEF:
R IfDE Fhas gotteninto contact with eyes,
flush withplenty ofwater immediately and
seek medical help.
R Clean affectedskin immediately withplenty
of water.
R IfDE Fw asswallowe d,rin se mout h
imm ediat elywith plentyof wate rand drink
pl enty ofwa ter. Consu ltaphy sicia n. G
WAR
NING If
yo uop en the DEF tank cap,sma llamo unts
of amm oniavap orma ybe released .This
depends inparticular upontheage ofthe DEF .
Ammon iavapors haveapungent odorandare
particularly irritatingto:
R skin
R mucous membranes
R eyes You
may experience aburning sensation in
your eyes, noseandthroat, aswell as
coughing andwatering ofthe eyes.
Do not inhale anyammonia vaporsthatmay
be released. Fillthe DEF tank onlyinwell-
ventilated areas.
! Only useDEF inaccordance with
ISO 22241 .Do not mix anyadditives with
DEF ,and donot dilute DEFwith water. This
may destroy theBlueTEC exhaustgas
aftertr eatment system.
! The vehicle mustbeparked onlevel
ground tofill the DEF tank.The DEF tank
can only befilled asinten dedwith the
vehicle parkedonalevel surface. This
avoids falselevelreadings. Fillingthetank
is not permitted ifthe vehicle isnot parked
on alevel surface. Thereisadanger of
overfilling, whichcouldresult indamage to
componen tsof the BlueTEC exhaustgas
aftertr eatment .
If the outside temperature islower than
Ò11 †,damage mayoccur whenadding DEF.
If DEF isfrozen andthere isan active warning
indicator, addingmaynotbepossible. Park
the vehicle inawarmer place,e.g.inagarage,
until DEFhasbecome fluidagain. Fillingis
then possible again.Alternatively, havethe
DEF tank refilled ataqual ified specialist
workshop.
! Rinse surfaces thathave come into
cont actwith DEFimmediately withwater or
remove DEFusing adamp clothandcold
water. Ifthe DEF hasalread ycrystallized,
use asponge andcold water toclean it.DEF
residues crystallize aftertimeand
cont aminate theaffected surfaces.
! DEF isnot afuel additive andmust notbe
added tothe fuel tank .If DEF isadded to
the fuel tank ,this canlead toengine
damage.
Further information onDEF (Ypage 387). Refueling
153Driving and parking Z
Page 159 of 396
R
the engineissw itch edoff.
R the driver 'sdo or isop en and theseat belt
is not faste ned .
R the vehicleis sta tionar yfor alength y
pe riod .
Th ered F (USA only)or ! (Cana da
onl y)ind icator lamp inthe instrument cluste r
li gh ts up .
Rel easing auto matic ally Yo
ur veh icle'sel ectr icpa rki ng bra keis
au toma tically rel easedifallof the followi ng
cond itions aremet:
R the engineisrunning .
R the transmi ssion isin po sitio nD or R.
R the seat beltha sbe en faste ned .
R yo ude pre ssthe accelera tor pedal.
If the transmi ssion isin po sitio nR, the trunk
li d mu stbe closed.
If yo ur seat beltis not faste ned ,the followi ng
cond itions mustbe fulfille d to automa tically
rel ease the electr icpa rki ng bra ke:
R the driver 'sdo or isclo sed.
R yo uha ve shifted outo ftransmis sion
posi tion Por you have previouslydrive n
faster than2mph (3km/h) .
Emerge ncybraking The
vehicl ecan alsobe braked duringan
emerge ncyusing the electric parking brake.
X Whil edrivi ng,pus hhandl e: ofthe electric
parking brake(Ypag e156). i
The
vehicl eis braked aslong asyou keep
the handl eof the electric parking brake
presse d.The longer theelectric parking
brake handleis depre ssed, thegrea terthe
braking force. During
braking:
R awa rning tonesound s.
R the Release
parkingbrake messa
ge
app ears.
R the red F (USAonly)or ! (Canada
only )indica torlamp inthe instrument
cluster flashes.
When thevehicl ehas been braked toa
standstil l,the electric parking brakeis
engag ed. Parking
thevehi cleforalong period
If you leave theveh icle park edfor longer than
four week s,thebatt erymay bedamage dby
exh aust ivedisc harg e.
X Conn ectatrick lechar ger. i
You
canobtain inform ationabout trick le
char gers from aqualifie dspec ialist
work shop,e.g .ana uth orizedMer cedes-
Ben zCen ter.
If you leave theveh iclep ark edfor longer than
six week s,theveh icle may sufferdamag eas
a res ult oflack ofuse.
X Visi taqu alified specialist workshopand
seek advice. Driving
tips General
driving tips
Impor tantsafet ynotes G
WARN
ING Always
remembe rthat you must concentrat e
primarily ondriving thevehicle. Thedriver's
conc entrat ionmust alwaysbe directed
primarily atroad traffic. Foryour ownsafety
and that ofothers, werecommen dthat you
stop thevehicle atasafe place andin
accordance withthetraffic conditions before
making oraccepting aphone call.
Comply withalllegal requirements ifyou use
the telephone whiledriving. Usethehands-
free system andonly usethetelephone when Driving
tips
157Driving and parking
Z
Page 162 of 396
Limi
tedbraking performa nce onsalt -
tr eat edroa ds G
WAR
NING The
layer ofsalt ontheb rake discs andthe
brake pads/linings maycauseadelay inthe
brakin geffec t,resultin gin asignific antly
longer brakingdistanc e,which couldleadto
an acciden t.
To avoid thisdanger, youshould:
R occ asionally brakecarefully, without
puttin gother roadusers atrisk, when you
are driving onsalted roads. Thishelps to
remov eany salt that may have startedto
build upon the brake discsandthebrake
pads/linin gs.
R maint ainagreater distancetothe vehicle
ahead anddrive withparticular care.
R carefully applythebrakes atthe end ofa
trip and immediately aftercommen cinga
new trip,sothat saltresidues areremoved
from thebrake discs.
Servicing thebrakes !
Ifthe red brake warning lamplights upin
the instr ument cluster andyouhear a
warning tonewhile theengine isrunnin g,
the brake fluidlevel maybetoo low.
Observe additional warningmessages in
the multifunct iondisplay .
The brake fluidlevel maybetoo low due to
brake padwear orleaking brakelines.
Have thebrake system checked
immediately. Thiswork should becarried
out atan authorized Mercedes-B enz
Center.
All check sand mainten ancework onthe
brake system mustbecarried outata
quali fiedspecialist workshop only.Have this
work carried outatan authorized Mercedes-
Benz Center.
Have thebrake padsreplaced andthebrake
fluid renewed ataquali fiedspecialist
workshop, e.g.anauthorized Mercedes-B enz
Center. G
WARNING If
brake padsorbrake fluidother thanthose
recommen dedareused, thebraking
properties ofthe vehicle canbedegraded to
an exten tthat safe braking issubstantially
impaired. Thiscould result inan accident.
! Afunct ionorperformance testshould
only becarried outona2 -axl e
dy nam ome ter.Ifyo uar eplanni ngtohave
the vehicleteste don such ady nam ome ter,
conta ctan author izedMer cedes-B enz
Ce nter toobtainfu rthe rinfo rma tionfir st.
Othe rwise, youcou ldda ma gethe drive
trai nor the brakesystem .
! Asthe ESP ®
sy stem opera tes
au toma tically, the engineand theigniti on
mu stbe switch edoff (Sma rtKeyin po sitio n
0 or 1in the igniti onlock orStar t/Stop
bu tton inpo sitio n0 or 1) wh ile the electri c
pa rking brakeisbe ing teste don abra ke
dy nam ome ter(ma ximu m10secon ds).
Brak ingtrigger edautomatic allybyESP®
may seriously damagethebrake system.
If your brake system issubject onlyto
moderate loads,youshould testthe
func tionality ofyour brakes atregular
int ervals bypressing firmlyonthe brake pedal
at high speeds. Thisimproves thegrip ofthe
brake pads. G
WARN
ING Make
surethatyoudonot endanger other
road users whenyouapply thebrakes.
You canfind adescript ionofBrak eAssist
(BAS )on (Ypage 61)orofBA SPLUS on
(Y page 62). 160
Driving
tipsDriving and parking
Page 164 of 396
Winter
driving
Gene ralnote s G
WARNING If
the vehicl ebecome strappe din snow,
ensure thatsnow iskept away from the
exhau stpip eand from aroundthe vehicl eas
long asthe engine isrunning. Otherwise,
poi sonou scarbo nmonoxide (CO)mayenter
the vehicle, resulting inloss ofconsc iousness
and even death.
To assure sufficient freshairvent ilation, open
a window slightlyonthe side ofthe vehicle
not facing thewind.
At the onset ofwinter, haveyourvehicle
winterproof edataquali fiedspecialist
workshop, e.g.atan authorized Mercedes-
Benz Center. i
Vehicles
withadiesel engine: donot
cover theradiator, e.g.with aprotec tive
cover. Themeasuring functionofthe
Onboard Diagnosis Systemmayotherwise
provide inaccurate values.Someofthese
values arerequired bylaw and must
therefor ealwa ysbe accurate.
Driving withsumm ertires Observe
thenotesinthe "Winter operation"
section (Ypage 352).
Slippery roadsurfa ces G
WARNING The
outside temperature indicatorisnot
designed toserve asan ice-warnin gdevice
and istherefor eunsuitable forthat purpose.
Indicated temperatures justabove the
freezin gpoint donot guarantee thattheroad
surface isfree ofice. The road maystillbeicy,
especially inwooded areasoron bridges. G
WARNING On
slippery roadsurfaces, neverdownshift in
order toobtain braking action.Thiscould result
indrive wheel slipand reduced vehicle
cont rol.Your vehicle's ABSwillnotprevent
this type ofloss ofcont rol.
Drive particularly carefullyonslippery road
surfaces. Avoidsudden acceleration, steering
and braking maneuvers. Donot use thecruise
cont rolorDIS TRONIC PLUS.
If the vehicle threaten sto skid orcann otbe
stopped whenmoving atlow speed:
X Shift thetrans mission toposition N. i
For
more informat ionondriving with
snow chains, see(Ypage 353). G
WARNING Make
surethatyoudonot endanger other
road users whenyouapply thebrakes. Off-r
oaddriving
Import antsafety notes G
WARNING Grains
ofsand, particles ofdirt and other
abrasive materials canenter thebrake
system. Thiscanlead toexcessive wearand
unpredictable brakingefficienc y.
Aft erthe brakes havebeen exposed todirty
condit ions,havethem check edand cleaned
at aquali fiedspecialist workshop, e.g.an
authorized Mercedes-B enzCenter.
Otherwise, thereisarisk that braking power
may beinsufficient inthe event ofan
emergenc y,or that thebraking effectmaybe
unpredictable. G
WARNING Do
not load items onthe basic carrier bars.It
may cause instability duringsomemaneuvers
which couldresult inan accident .
Drive slowly inunkn ownterrain. Thiswill
make iteasier torecogn izeunexpect ed
obstacles andavoid damage tothe vehicle.
To help avoid thevehicle rollingover,never
turn itaround onsteep inclines. Ifthe vehicle 162
Driving
tipsDriving and parking