light MERCEDES-BENZ M-Class 2012 W166 Repair Manual

Smar
tKeypositions
Smar tKey g
Toremove theSmartK ey
1 Power supply forsome consumers, such
as the windshield wipers
2 Ignition (powersupplyforallconsumers)
and drive position
3 Tostart theengine
As soon asthe ignition isswitched on,allthe
indicator lampsinthe instrumen tcluster light
up. Ifan indic atorlamp doesnotgoout after
the engineisstart ed orifit light sup while the
vehic leisin mot ion, see(Ypage 271).
If the SmartKey isin posit ion0in the ignit ion
lock foranext ende dperiod oftim e,itcan no
long erbe turned inthe ignit ionlock .The
steering isthen locked. Tounlock, remove the
SmartK eyand reinsert itinto theignition lock.
The steering islocked whenyouremove the
SmartK eyfrom theignition lock.
X Remove theSmartK eywhen theengine is
switched off.
The starter battery couldotherwise be
discharged.
If you cannot turntheSmartK eyinthe ignition
lock, thestarter battery maynotbecharged
sufficiently.
X Check thestarter battery andrecharge itif
necessary (Ypage 340).
or
X Jump-start thevehicle (Ypage 341). i
The
SmartK eycan beturned inthe
ignition lockeven ifit is not thecorrect
SmartK eyfor the vehicle. Theignition isnot
switched on.The engine cannot bestarted.
KEY LESS-GO General
informat ion
Vehicles withKEYLE SS-GO are equipp edwith
aS martKey featuringanintegrated KEYLESS-
GO function andadetacha bleStart/St op
button.
The Start/St opbutton mustbeinserted inthe
ignitio nlock andtheKEYLESS-GO keymust
be inthe vehicl e.
Pressi ngthe Start/St opbutton severaltimes
in successi oncorrespond sto the differe nt
SmartKey positions inthe ignitio nlock. This
is only thecase ifyou arenot depressing the
brake pedal.
If you depress thebrake pedalandpress the
Start /Stopbutton ,the engine starts
immediately.
The Start /Stopbutton canberemoved from
the ignition lock.Then, youcan insert the
Smart Keyinto theignition lock. i
You
donot have toremove theStart /Stop
button fromtheignition lockwhen you
leave thevehicle. However, youshould
alwa ystake theSmart Keywith youwhen
leaving thevehicle. Thevehicle canbe
start edwith theStart /Stopbutton andthe
electric alequipment canbeoperated while
the Smart Keyisin the vehicle. Driving
139Driving and parking Z

X
Insert Start/S topbutton :into ignition
lock ;. i
When
youinsert Start/S topbutton :
into ignition lock;,thesystem requiresa
detection timeofapp roximately two
seconds beforeyoucan useStart/S top
button :. Start/St
opbutton
= USA only
? Cana daonly
X Positio n0: ifStart/S topbutton :has not
yet been pressed ,this corresponds tothe
SmartKey beingremoved fromtheignition.
X Positio n1: press Start/S topbutton :
once.
You cannow activate thewindshi eld
wip ers, forexampl e. i
If
you press Start/S topbutton :twice
when inthis positio n,the powe rsupply is
deac tivat ed again .
X Pos ition 2(ign ition ):pre ssStart /S top
but ton: twice. i
If
you pressStart /S topbut ton: once
when inthis posi tion and thedriv er'sdoor
is open ,th epower supplyis deac tivat ed
again .
As soo nasthe ignition isswitched on,allthe
indicator lampsinthe instrument clusterlight
up. Ifan indicator lampdoesnotgoout after
the engine isstarted orifit lights upwhile the
vehicle isin motion, see(Ypage 271). Star
ting theengin e
Importa ntsafety notes G
WARNING Inhalation
ofexhaust gasishazardous toyour
health. Allexhaust gascont ains carbon
monoxide (CO),andinhaling itcan cause
unconsciousness andpossible death.
Do not run theengine inconfined areas(such
as agarage) whicharenot properly ventilated.
If you think thatexhaust gasfumes are
entering thevehicle whiledriving, havethe
cause determined andcorrect ed
immediately .Ify ou must driveunder these
condit ions,drive onlywith atleast one
window fullyopen atall times. i
Vehicles
withagasoline engine:the
catalytic converter preheats forupto30
seconds afteracold start.Durin gth is time,
th een gin esoun dmay bediff ere nt.
Aut oma tic trans mission X
Sh ift thetrans mis sion toposi tion P.
The trans mis sion position disp layinthe
mult ifunction disp laysho wsP
(Y page 145). i
You
canalso start theen gin ewhen the
tr ans mis sion isin posi tion N.
St artin gpr ocedu rewith theSm artKey X
To star tag asolineeng ine:turn the
SmartKey toposi tion 3in the ignition lock
(Y pag e139) andrelease itas soon asthe
engine isrunning.
X To start adiesel engine: turnthe
Smar tKey toposit ion2in the ignit ionlock
(Y page 139).
The % preglow indicatorlamp inthe
inst rumen tcluster lightsup.
X When the% preglo windic atorlamp
goes out,turnthe SmartK eytoposition 3
(Y page 139)andrelease itas soon asthe
engine isrunning. 140
DrivingDriving and parking

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

:
Toopen thefuel filler flap
; Toinsert thefuel filler cap
= Fuel type
? Tire pressure table
Opening X
Switc hoff the engine.
X Remove theSmart Keyfrom theignition
lock.
KEYLE SS-GO: open thedriver’s door.This
switches theignition toposition 0,which
correspon dstohaving removed the
Smart Key.Thedriver’s doorcanbeclosed
again.
X Press thefuel filler flapinthe direction of
arrow :.
The fuel filler flapswings up.
X Turn thefuel filler capcount er-clockwise
and remove it.
X Insert thefuel filler capinto theholder
bracket onthe inside offiller flap;.
X Completely insertthepump nozzleinto the
filler neck andrefuel.
X Only fillthe tank untilthepump nozzle
switches off.
! Overfilling thefuel tank could damage the
fuel system. Closing X
Replace thefuel filler capand turn it
clock wise. Thefuel filler capaudibl y
engages.
X Close thefuel filler flap. i
If
you drive withthefuel filler capopen,
reserve fuelwarning lamp8 flashes. In
addition, the; Check Engine warning
lamp maylight up.Am essage appears in
the multifunc tiondisplay (Ypage 257).
For furth erinfor mation onwarning and
indicat orlamps inthe instrument cluster,
see (Ypage 276). Refueling
151Driving and parking Z

X
App lythe electri cpark ing brak e.
X Sh ift thetrans mis sion toposi tionP.
Using theSm artKey X
Turn theSm artKey toposi tion0 inthe
ign ition lockand remove it.
The imm obiliz erisact ivat ed. i
If
you turnoff theen gin ewit hth e
Sm artKey and then rem ove itfrom the
ign ition lockor open afron tdoor ,th e
auto matictrans mis sion shiftsto P
auto maticall y.
Using KEYLESS- GO X
Pre sstheSt art /S topbut ton( Ypage 139).
The engin estops andallthe indicat or
lamps inthe instrument clustergoout. i
If
you usetheStart/ Stop butt ontoswitc h
off the engin e,the automatic transmission
shift sto Nautomatic ally.Ifyou then open
one ofthe fron tdoors, theautomatic
trans mission shiftstoP. i
In
an emergenc y,the engine canbe
turned offwhile thevehicle isin motion by
pressing andholding theStart /Stopbutton
for three seconds. Elec
tric par king brake
General information i
The
electric parking brakeperforms a
funct iontest atregular intervalswhile the
engine isswitched off.The sounds thatcan
be heard whilethisisoccurrin gare normal. G
WARNIN
G When
leaving thevehicle, alwaysremove the
Smart Keyfrom thestart erswitch, takeitwith
you, andlock thevehicle. Donot leave
children unattendedinthe vehicle, orwith
access toan unlocked vehicle.Children could
release theparking brakeand/or shiftthe
automatic transmission outofpark position P,
either ofwhich couldresult inan accident
and/or serious personal injury. Applying/releasing
manually X
To app ly:press handle :.
The redF (USAonly)or! (Canada
only) indicator lampinthe instr ument
cluster lightsup. i
The
electric parking brakecanalso be
applied whentheSmart Keyisremoved.
X To release: pullhandle :.
The redF (USAonly)or! (Canada
only) indicator lampinthe instr ument
cluster goesout. i
The
electric parking brakecannotbe
released unlesstheSmart Keyisin position
1 in the ignition lockorthe ignition has
been switched onusing theStart /Stop
button .
To ensure thatyoudon't rollbackwards when
pulling awayonanuphill slope, engage the
electric parking brake(Ypage 141).
Applying automat ically Your
vehicle's electricparking brakeis
automatically appliedifDIS TRONIC PLUSor
the HOLD functionbring thevehicle toa
standst ill,orare engaged tokeep thevehicle
station ary.Inaddition, atleast oneofthe
following conditionsmust befulfilled: 156
Par
kingDriving and parking

Cert
ainengin esyst ems aredesi gned tokeep
th eleve lof pois onous compo nentsin ex haust
fum eswit hin legal limits.
Thes esyst ems onlywork atpeak efficie ncy
when they are main tainedex act lyin
acc ordanc ewit hth eman ufacturer's
spec ifications.Fo rthis reason, allwork onthe
engine mustbecarried outonly byqual ified
and authorized Mercedes-Ben ztechn icians.
The engin esett ings must notbechanged in
any circumstan ces.Furthermor e,all specific
servic ework must becarried outatregular
int ervals andinaccor dance withthe
Mercedes- Benzservic erequirement s.Det ails
can befound inthe Serv iceBook let. Engine
oil
! Vehicles withadiesel particle filter:
If the vehic leismost lydriven forshort
distan ces,itis possible thatmalfun ctions
may occurduring theautomat icclean ingof
the diesel particle filter. This canlead to
engin edamage. Therefore,ifyou frequen tly
drive short distan ces,make suretodrive
on highways orinter- urban roadsfor20
minut esatleast every 310miles (500km). Br
akes
Imp ortant safet ynotes G
WARN
ING On
slippery roadsurfac es,nev erdowns hiftin
order toobtain brakingact ion. This could
result indrive wheel slipand reduce dvehic le
con trol. Your vehic le'sABSwill notpreve nt
this type ofloss ofcon trol. G
WARN
ING Make
surethatyoudonot endan gerother
road users whenyouapply thebrake s. Downhill
gradient s !
Onlong andsteep gradien ts,you must
reduce theload onthe brake sby shift ing
early toalower gear.Thisallows youtotak e
advant ageofthe engin ebrakin geffe ctand
helps avoidoverheatin gand excessive
wear ofthe brake s.
When youtakeadvant ageofthe engin e
brakin geffe ct,a drive wheel maynotturn
for some time,e.g. onaslippery road
surfac e.This could cause damage tothe
drive train. This type ofdamage isnot
cov ered bythe Merc edes- Benzwarrant y.
Hea vyand lightload s G
WAR
NING De
pre ssin gth ebrak epedal constant lyres ults
in ex ces siveand premat urewear tothebrak e
pads.
It may alsocauseth ebrak estoove rheat,
ser iously impairingth eir effect iven ess.Itm ay
th en notb epossible tostop thevehicle in
sufficien ttime toavoid anacciden t.
If the brakes havebeen subject edtoaheavy
load, donot stop thevehicle immediately, but
drive onfor ashort while. Thisallows the
airflow tocool thebrakes morequickly.
Wet roads G
WARN
ING Aft
erdriving inheavy rainforsome time
without applying thebrakes orthro ugh water
deep enough towet brake compon ents,the
first braking actionmaybesomewhat
reduced. Youhave todepress thebrake pedal
more firmly. Maintain asafe distanc efrom
vehicles infron t.
Aft erdriving onawet road orhaving the
vehicle washed, brakefirmlywhilepaying
atten tiontothe traff iccon ditions .This will
warm upthe brake discs, thereby dryingthem
more quickly andprotec tingthem against
corr osion. Driving
tips
159Driving and parking Z

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

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

Check
listbefor edr iving off-road X
Engine oillevel: check theen gin eoil and
add oilifne ces sary.
When drivingonsteep grad ients,th eoil
leve lmust besuff iciently high toensure a
co rrect oilsupply inthev ehicle.
X DEF tank (BlueTEC vehicles): checkthe
fluid level and,ifnec essary, refilltothe
maximum (13l)(Y page 152).
X Wheel-changing toolkit:chec kthat the
jack isworkin gand make sureyouhave the
lug wrenc h,arobust towcable andafolding
spade inthe vehicle.
X Wheels andtires: chec kthe tire tread
depth andtirepressure.
X Check fordamage andremove anyforeign
objec ts,e.g. small stones,from the
wheels/tir es.
X Replace anymissing valvecaps.
X Replace dentedordamaged wheels.
X Rims: dentedorbent rimscanresult ina
loss oftire pressure anddamage thetire
bead. Therefor e,chec kyour rims before
driving off-road andreplace themas
required.
! Ifthe engine oilwarning lamplights up
while thevehicle isin motion ,stop the
vehicle inasafe place assoon aspossible.
Check theengine oillevel. Theengine oil
warning lampwarning mustnotbeignored.
Continuing thejourney whilethesymbol is
display edcould leadtoengine damage.
Checklist afterdriving off-road G
WARNIN
G If
you notic esudden significant vibrationsor
unusual handling performanc eor ifyou
suspect thatdamage hasoccurred tothe
vehicle, youshould activate thehazard
warning lamps,gentlyreduce speedand
carefully headforanarea thatislocated ata
safe distance fromtheroad.
Check thetires andtheunderside ofthe
vehicle fordamage. Ifthe vehicle seems unsafe,
havethevehicle towedawaytothe
nearest Mercedes-B enzCenter ortire dealer
to be repaired.
! Ifyou detect damage tothe vehicle after
driving off-road, havethevehicle checked
immediately ataquali fiedspecialist
workshop.
Drivin gover rough terrain placesgreater
demands onyour vehicle thandriving on
normal roads.Afterdriving off-road, check
the vehicle. Thisallows youtodetect damage
promptly andreduce therisk ofan accident
to yourself andother roadusers.
X Deact ivateDSR(Ypage 208).
X Vehicles withtheAIRMATIC package:
lower thevehicle toaride height suitable
for the road condit ions,e.g.tothe
highway /high-speed level.
X Clean theheadlamps andrear lights and
check fordamage.
X Clean thefront andrear license plates.
X Clean thewheels/tires withawater jetand
remove anyforeign objects.
X Clean thewheels, wheelarches andthe
vehicle underside withawater jet;check
for any foreign objectsand damage.
X Check whether twigsorother partsof
plants havebecome trapped. These
increase therisk offire and candamage
fuel pipes, brakehoses orthe rubber
bellows ofthe axle jointsand propeller
shafts.
X Aft erthe trip, examine withoutfailthe
entire undercarriage, wheels,tires,brakes,
bodywork structure,steerin g,chassis and
exhaust systemfordamage.
X Aft erdriving forexten dedperiods across
sand, mud,gravel, waterorinsimilarly dirty
condit ions,havethebrake discs, wheels,
brake pads/linings andaxle jointscheck ed
and cleaned.
X Ifyou detect strongvibrations afteroff-road
travel, checkforforeign objectsin the
wheels anddrive trainandremove themif 164
Driving
tipsDriving and parking

Trave
ling uphi ll
App roac h/depa rture angle :
: 14
;
Ste
el-spri ng
ve hic les 26° 25° 25°
Veh
icle swi th
the AIRMA TIC
pac kag e Hig
hway level 23° 22°
22°
15 Ra
ised level 28° 27° 27°
R
Co mpl ywi th the rulesfor off-roaddri ving .
R Do not drive atan ang leon slop es,incl ines
or gra dients, butinstea dfol low the direct
li ne offall.T he maximum gradient-climbing
capabil ityofyour vehicle is100%, which
corresponds toan approach/departure
angle of45°. Note thatthevehicle's
gradient-c limbingcapabilitydepends on
the off-r oad condition s.
R Before tackling steepdownhill gradients,
select shiftrange 1.
R Drive slowly .
R Avoid highengine speeds –drive ata
sui table engine speed(maxi mum 3000
rpm). R
When drivingdow nanincli ne, makeuseof
the engine'sbra king effect. Observethe
eng inespeed;do not overrevthe engine.
R Check thebrakes afterdriving off-road for
a long time. G
WARNING Never
turnthevehicle around onsteep
inclines. Thevehicle mightrollover. Ifthe
vehicle cannotcomplete theattempt edclimb,
back itdown inreverse gear. i
Hill
start assist willaidyou when pulling
away onahill.
For further information ,see "Hill start
assist" (Ypage 142).
Maximum gradient-climbing capability For
good roadsurface condition s,the
maximum gradient-climbingcapabilityis
100%, whichcorresponds toan approach/
departure angleof45°. Note thatthe
vehicle's gradient-c limbingcapability
depends onthe off-r oad condition s.
Acc elerate carefully andmake surethatthe
wheels donot spin when driving onsteep
terrain. i
If
the load onthe front axleisreduced
when pullingaway onasteep uphillslope,
the front wheels haveatenden cytospin.
4ETS recogniz esthis and brakes the
wheels accordingly. Therear wheel torque
is increased, makingiteasier todrive off.
Brow ofhill When
driving upanuphill gradient, slightly
reduce pressure onthe accelerator
immediately beforereaching thebrow ofthe
hill. Use thevehicle's ownimpetus todrive
over thetop ofthe hill.
14 With AMG bodystyling.
15 166
Driving
tipsDriving and parking

The ML 350 4MATIC model has a departure angle of 23°.