2012 MERCEDES-BENZ M-Class park assist

Tow
ingat rail er
Activ ePark ing Assist ..................... 189
Cl eani ngthe trail ertow hitch .........322
Cou pling up atrail er...................... 215
Decoup lingatrail er....................... 217
Driving tips.................................... 210
Importa ntsafe tynotes .................. 210
Install ingthe ballcoup ling............. 214
Ligh tsdis pla ym essage .................. 250
Mou nting dimensions .................... 391
Pow ersup ply................................. 219
Pul ling away with atrail er.............. 141
Rem oving theballcoup ling............ 218
Shift range ..................................... 147
Storing theballcoup ling................ 218
Trai lerloads................................... 391
Towi ngaway
With both axleson the grou nd....... 344
Tow-s tarting
Emergency enginestarting ............ 345
Importa ntsafe tynotes .................. 343
Trailer couplin g
see Towingatrail er
Trailer loadsanddrawbar
nos eweig hts ...................................... 218
Trailer towing
Active BlindSpotAssist ................. 205
Active LaneKeepingAssist ............ 208
Blind SpotAssist ............................ 200
ESP ®
................................................ 64
PARKT RONIC................................. 185
Permi ssibletrail erloa dsand
dra wba rnoseweights ..................... 218
Transmiss ion
see Automa tictransmis sion
Transporting thevehi cle .................. 345
Traveli nguphill
Brow ofhill....... ..............................166
Driving downhill ............................. 167
Maxi mum gradient-clim bing
capa bility ....................................... 166
Trim pieces(clean inginstruction s).3 24
Trip computer (on-bo ard
co mputer) .......................................... 227
Trip meter
see Trip odom eter Trip
odome ter
Ca lling up ....... ..................... ...........227
Res etting (on-boa rdcompu ter)...... 228
Trunk
see Tailga te
Turn signals
Displ aymessa ge............................ 251
Switchi ngon/off ........................... 111
TWR (TongueWeight Rating)
(defi nition) ......................................... 374
Type identification plate
see Vehi cleidentificati onplate U
Unl
ocking
Emergency unlocking ....................... 80
From insidethe vehi cle(central
unlo cking button) ............................. 79 V
Vanity
mirror(insun visor).............. 295
Vehic le
Corr ectuse ...................................... 25
Data acquisition ............................... 26
Displ aymessa ge............................ 265
Equi pment ....................................... 21
Indivi dualsett ings .......................... 233
Limi tedWarr anty ............................. 26
Load ing.......................................... 362
Locking (inanemerg ency)............... 80
Locking (SmartKe y)....... ................... 73
Lowe ring........................................ 337
Mai ntenance .................................... 22
Parki ngfor along period....... .........157
Pul ling away ................................... 141
Ra ising ........................................... 334
Rep orting problems ......................... 25
Tow ingaway .................................. 343
Transp orting.................................. 345
Unlocking (inanemerg ency)........... 80
Unlocking (SmartKey)...................... 73
Vehi cledata ................................... 390
Vehic lebattery
see Battery (vehicle)
Vehic ledata ....................................... 390
see Techni caldata In
dex
19

Cockp
it Funct
ion Pag
e :
St
eer ing wheel paddle
shif ters 14
7 ;
Comb
inationswit ch 11
1 =
In
st rum entclus ter 29
?
Hor
n A
DI
RECT SELECT leve r 14
4 B
PA
RKTRO NICwarn ing
displ ay 18
3 C
Ove
rheadcontrol pane l 34
D
Climat
eco ntrol syst ems 12
2 E
Ign
ition lock 13
9 St
art /S topbut ton 13
9 Funct
ion Pag
e F
Ad
jus tsthest eer ing wheel
man ually 10
0 G
Ad
jus tsthest eer ing wheel
elec tricall y 10
0 St
eer ing wheel heating 10
1 H
Cruise
control leve r 16
8 I
Open
sth ehood 31
2 J
On
-bo ard diagn ostic
int erf ace 24
K
Ele
ctric park ingbrak e 15
6 L
Ligh
tswitc h 10
8 M
Night
ViewAssist Plus 19
5 28
CockpitAt a glance

The
brakes willfunct ionasusual onceyou
release thebrake pedal. BASisdeactivated. G
WARNIN
G If
the BAS malfunct ions,thebrake system still
funct ions, butwithout theadditional brake
boost availabl ethat theBAS would normally
provide inan emergenc ybraking maneuver.
Therefore, thebraking distancemay increase. BAS
PLUS (BrakeAssist System Plus)
BAS PLUS isonly availab lein vehicles
equipped withDISTRONIC PLUS. i
Observe
the"Importan tsafet yno tes"
sec tion(Ypage 61).
At speeds aboveapproximat ely
20 mph (30km/ h),BASPLUS assists you
when brakin gin hazardous situationsand
uses theradar senso rsyst em toeva luat eth e
tr aff icco nd ition s. i
This
devicehas been approved bytheFCC
as a"Veh icular Radar System". The rada r
sen sor syst emisinte nd ed foru se inan
automotive radarsystem only.Removing,
altering ortampering withthedevice will
void anywarranties, andisnot permitted
by the FCC. Donot tamper with,alter, or
use inany non- approved way.
Any unauthorized modificationtothis
device couldvoidtheuser's authority to
operate theequip ment.
With thehelp ofthe radar sensor system, BAS
PLUS candetect obstacles thatareinthe
path ofyour vehicle foranextended periodof
time.
At speeds uptoapproximately
40 mph (70km/h), BASPLUS canalso detect
stationary obstacles, forexample stoppedor
parked vehicles.
Should youapproa chan obstacle andBAS
PLUS hasdetected arisk ofcollision, BAS
PLUS calcula testhe braking forcenecessary
to avoid arear-end collision. Shouldyouapply
the brakes forcefully, BASPLUS can automaticall
yincrease thebraking forcetoa
level suitabl efor the traffic conditions.
X Keep thebrake pedaldepressed untilthe
emergency brakingsituation isover.
ABS prevents thewheels fromlocking.
The brakes willwork normally againif:
R you release thebrake pedal.
R there isno longe rany dange rofarea r-end
colli sion.
R no obstacl eis detected infront ofyou r
vehicl e.
BAS PLUS isthen deactivated. Ifyou have
activated DSR(Ypag e208), BASPLUS is
likew isedea ctivated.
For BAS PLUS toassi styou when driving,the
rada rsensor system mustbeswitch edon and
operation al,see "Rada rsensor system" inthe
index. G
WARN
ING BAS
PLUS cannotalway sclearly identify
objec tsand complex trafficsituation s.BAS
PLUS cannotinte rven ein these cases.
There isarisk ofan acciden t.Always pay
careful attentiontothe traff icsituation andbe
ready tobrake.
In particular, thedetec tionofobstac lescan
be impaired ifther eis:
R dirt onthe sensor sor anythin gelse
cover ingthe sensor s
R snow orheavy rain
R int erferen cebyother radarsources
R the possibility ofstr ong radar reflect ions,
for example inparkin ggarages
R anarrow vehicle travelingin fron t,e.g. a
moto rbike
R avehicle travelin gin fron tonadi fferent line G
WARN
ING BA
SPLUS doesnotreact :
R to people oranimals
R to onc oming vehicles 62
Driving
safetysystemsSafety

G
WARNING PRE-SAFE
®
Brake cannot alwaysdetect
comple xtraffic situations prope rly.
In these cases, PRE-SAFE(R) Brakemay:
R give anunnecessa rywarni ngand then
brake thevehicl e
R neither giveawarni ngnor intervene
There isarisk ofan accide nt.Alwa yspay
particu larattention tothe traffic situationand
be read yto brake, especiallyif PRE-SAFE(R)
Brake warns you.Termina tethe intervention
in anon-critical drivingsitua tion.
In particu lar,the detection ofobstacl escan
be impa iredifthere is:
R dirt onthe sensors oranythi ngelse
covering thesensors
R snow orheavy rain
R interference byother radarsources
R the possibility ofstron gradar reflect ions,
for example inparking garages
R anarrow vehicle traveling infront ,e.g. a
motorbik e
R avehicle traveling infront onadifferent line G
WARNIN
G PRE-S
AFE®
Brake doesnotreact:
R to people oranimals
R to oncom ingvehicles
R to crossin gtraffic
R in curves
As aresult, PRE-SAFE®
Brake cannot
interv eneincritic alsituations. Thereisarisk
of an accident .Always paycaref ulatt ent ion
to the traffic situat ionand beready tobrak e.
In order tomaint ainthe appropr iatedistance
to the vehic lein fro ntand thus preventa
collisio n,you must apply thebrak esyourself .X
To act ivat e/deact ivate:act ivate or
deact ivatePRE-SAFE®
Brak ein the on-
board computer (Ypage 232).
The Ä symbol appears inthe
multif unction display aslong asthe HOL D
func tion isnot activate d(Ypage 179).
On vehicles withActive Parkin gAssist ,the
Ä symbol isdisplayed when
tran smission positionPis select edorifyou
drive faster than22mph(35 km/h).
For PRE-S AFE®
Brak eto assist youwhen
drivin g,the radar senso rsyst em mus tbe
switched on(Ypage 236)andoperational.
Following damagetothe front endofthe
vehicle, havetheconfiguration andoperation
of the radar sensors checked ataqual ified
speciali stworkshop. Thisalso appli esto
collisions atlow speeds wherethereisno
visible damage tothe front ofthe vehicle. STEER
CONTROL
The steering assistant STEERCONTROL helps
you bytransmitt inganoticeable steering
force tothe steering wheelinthe direction
required forvehicle stabilization.
This steering assistance isprovided in
particular if:
R both right wheels orboth leftwheels areon
a wet orslippe ryroad surface whenyou
brake
R the vehicle startstoskid
You have controlover thesteering atall
times. G
WARNING If
the ESP ®
is malfunctioning, youwillnot
receive steering assistance fromtheSTEE R
CONTROL. Thepower steering function,
however, remainsavailable. Driving
safetysystems
67Safety Z

X
Press andhold handle :.
The electr icparking brakecontinues to
brake andprevent thevehicle fromrolling
backwards.
The redF (USAonly)or! (Canada
only) indicator lampinthe instrument
cluster remains lit.
X Depress theaccelerator pedal.
X As soon asthe vehicle/t railercombinat ion
is held bythe driving forceofthe engine,
release lever:.
The electr icparking brakeisreleased.
The redF (USAonly)or! (Canada
only) indicator lampinthe instrument
cluster goesout.
Hill star tassist Hill
start assist helpsyouwhen pulling away
forwards orinreverse onanuphill gradient.
It holds thevehicle forashort timeafter you
have removed yourfootfrom thebrake pedal.
This gives youenough timetomove yourfoot
from thebrake pedaltothe accelerat orpedal
and depress itbefore thevehicle beginsto
roll. G
WARN
ING Never
leavethevehicle whenitis held byhill
start assist. Afterapproximately onesecon d,
hill start assist willnolonger brakeyour
vehicle anditcould rollaway. X
Take yourfootoffthe brake pedal. i
Onc
eyou have taken yourfootoffthe
brake pedal, thevehicle isheld foraround
one secon d.
X Pull away .
Hill start assist willnotfunc tion if:
R you arepulling awayonalevel roadora
downhill gradient.
R the tran smission isin position N.
R the electr icparking brakeisapplied.
R ES P®
is malfunct ioning. 142
DrivingDriving and parking

Gasoli
ne
Fuel grade !
You shou ldonly refuel withpremiu m-
grade unleadedgaso line, asthis avoids
dama gingthecataly ticconverter.
Flexibl efuel vehicle s,identifi ablefrom the
lab elinside thefuel filler flap ,can be
refuel edwith E85. Forfurther information
on flexib lefuel ,see "Fue l".
If engine running problemsareapparent,
have thecause checked immediatelyand
repa ired. Excess unburned fuelcan
otherwi seenter thecataly ticconverter,
lea ding tooverhea tingandpossi bly
causi ngafire.
! Use afilter when refuelingfrom afuel can.
Otherwi se,the fuel lines and/or injection
system couldbeblocked byparticl esfrom
the fuel can. i
Only
refuel withpremiu m-grade unleaded
gaso linewith aspecifi edminimu moctane
numb erof91 (avera gevalue of96 RON/
86 MON) .
You willus ua lly find informa tion abou tthe
fuel grade onthe pump. Ifyou cannot find
the label onthe pump, askthestaff for
assistance.
You canfind more information under"Fuel"
(Y page 385), orby cont acting an
authorized Mercedes-Ben zService Center
or visitin ghtt p://ww w.mbu sa.com (USA
only). Diesel
Fuel grade !
Only refuel withULTRA- LOWSULFUR
DIE SELFUE L(ULSD ,15 ppm SULF UR
MAXI MUM). Usingotherdiesel fuelscould
result inincr eased wearanddamage tothe
engin eand/or exhaust system.
Never refuelwithmarine dieselorheating
oil. Do
not mix these fuelswithdiesel fuelsand
do not use anyspecial additives, asthis
may result indamage.
! Use afilter when adding fuelfrom afuel
can. Other wise, thefuel lines and/or the
fuel inject ion system couldbeblocked by
particles fromthefuel can. i
Usually,
youwillfind infor mation about
the fuel grade onthe pump. Ifyou cann ot
find thelabel onthe gasoline pump,askthe
gas stationstaff .
You canfind more information under“Fuel”
(Y page 385),or by con tact ingan
authoriz edMercedes- BenzService Center
or visitin ghtt p://ww w.mbu sa.com (USA
only).
Low outsid etem pera tures !
Donot use gasoline torefuel vehicles with
a diesel engine.Never mixdiesel with
gasoline orkeros ene,asthis may result in
damage tothe engin eor fuel system.
Diesel fuelwith improved coldflowpropert ies
is available duringthewinter months.Furt her
infor mation onfuel propert iescan be
obtained fromoilcompan ies,e.g. atgas
stat ions. Refueling
Fuel filler flap The
fuel filler flapisunlock edorlocked
automatic allywhen youopen orclose the
vehicle withtheSmart Keyorusing KEYLE SS-
GO.
The position ofthe fuel filler capisdisplayed
in the instrument cluster8.T hearrow
next tothe filling pump indicates theside of
the vehicle. 150
RefuelingDriving and parking

Closing
theDEF filler capand fuel filler
fla p X
Plac eDE Ffiller cap;onthe filler neckand
tur nit clo ckwi se.
X To closethe fuel fillerf lap, press itin the
direc tionofarrow :.
X Dr ive ataspeed above10mph (16km/h) .
The Chec
kAddi tive SeeOperator's Manu
al mess
agedisappears after
approx imatelyone minute. i
If
the Chec
kAddi tive See Oper
ator'sManu al mess
agecontinues
to be shown inthe mult ifunc tiondisplay,
you need toadd moreDE F. Par
king Imp
ortant safety notes G
WARN
ING Do
not park thisvehic lein areas where
com bustib lemat erials cancom eint ocon tact
with thehot exhaust system. Donot park the
vehic leon dry grass landorharve stedgrain
fields. Combust iblematerials, suchasgrass ,
hay orleaves couldbeignit edbythe hot
exh aust systemand cause avehic lefire . Unin
tended vehic lemov emen tcan cause
serio usperso nalinjury ordamage tothe
vehic leor the vehic ledrive train. Toreduc e
such risks,always dothe followin gbefor e
tur nin goff the engineand leavin gthe vehic le:
R keep yourright footonthe brak epedal.
R apply theelect ricpark ingbrak e.
R shift theautom atictransm ission intopark
posit ionP.
R slowly release thebrak epedal.
R when parkedon anincline, always turnthe
front wheels towards theroad curb.
R turn theSmartKey inthe ignition lockto
position 0and remove theSmartKey from
the ignition lock,orpress theKEYLES S-GO
Start /Stopbutton.
R take theSmartKey withyouand lock the
vehicle whenleaving. Switching
offthe engine
Import antsafety notes G
WARNING Never
switch offthe engine whilethevehicle
is in motion.
There isno brake boostforthe service brake
if the engine isnot running. Ifthe ignition is
switched off,there isalso nopower
assistance forthe steering.
You willrequire considerably moreeffort to
steer andbrake andyoucould therefore lose
cont rolofthe vehicle andcause anaccident. G
WARNING Keep
inmind thatturning offthe engine alone
only willshift theautomatic transmission into
neutral position Nautomatically .
Always shifttheautomatic transmission into
park position Pbefore turning offthe engine.
Otherwise thevehicle couldrollaway which
could result inan accident and/orserious
personal injury. Park
ing
155Driving and parking Z

road
,wea ther andtraffic conditions permit.In
some jurisdictions, itis forbid denfordrivers
to use mobil ephones whiledrivi ng.
Only opera teCOMAND (Cockpit Manag ement
and Data System) incompli ancewithalllega l
requ irements andwhen theroad ,wea ther and
traffic conditions permit.Youmay otherwi se
not beableto observe thetraffic conditions,
endange ringyourself andothers.
Reme mberthatyourvehicle coversa distanc e
of 44 feet (approximately 14m)asecon d
when itis travelin gat only 30mph
(approximately 50km/ h).
Drive sensibly –save fuel Obse
rvethe followi ngtips tosave fuel:
X The tires shouldalwa ysbe infla tedtothe
recomme ndedtirepres sure.
X Re move unneces saryloads.
X Re move roofcarrierswhe nthey arenot
needed.
X Warm upthe engine atlow engine speeds.
X Avoid frequent acceleration orbraking.
X Have allmaintenanc ework carried outas
indicated bythe service intervals inthe
Service Booklet orby the service interval
displa y.
Fuel consumption alsoincreases when
driving incold weather, instop-and- gotraffic
and inmountainous terrain.
Drinking anddriving G
WARNING Drink
ingand driving and/or takingdrugsand
driving arevery dangerous combinations.
Even asmall amount ofalcohol ordrugs can
affect yourreflexes, perceptions and
judgment.
The possibili tyof aserious oreven fatal
accident aregreatly increased whenyoudrink
or take drugs anddrive. Do
not drink ortake drugs anddrive orallow
anyone todrive whohasbeen drinking or
taking drugs.
Pedals G
WARNING Make
sureabsolu telynoobject sare
obstructin gthe pedals' rangeofmovement .
Keep thedriver's footwell clearofall
obstacles. Ifthere areany floormats or
carpets inthe footwell, makesurethatthe
pedals stillhave sufficient clearance.
During sudden drivingorbraking maneuvers,
the object scould getcaught between the
pedals. Youcould thennolonger brakeor
accelerate. Thiscould leadtoaccidents and
injury.
Rolling withtheengine switched off G
WARNING There
isno power assistance forthe steering
and thebrake whentheengine isnot running.
Steerin gand braking requires significantly
more effort andyoucould losecontrolofthe
vehicle andcause anaccident asaresult.
Do not turn offthe engine whilethevehicle is
in motion.
Exhaust check G
WARNING Inhalation
ofexhaust gasishazardous toyour
health. Allexhaust gascont ains carbon
monoxide (CO),andinhaling itcan cause
unconsc iousness andpossible death.
Do not run theengine inconfin edareas (such
as agarage) whicharenot properly ventilated.
If you think thatexhaust gasfumes are
enterin gthe vehicle whiledriving, havethe
cause determined andcorrect ed
immediately. Ifyou must driveunder these
condition s,drive onlywith atleast one
window fullyopen atall times. 158
Driving
tipsDriving and parking