MERCEDES-BENZ M-Class 2012 W166 Owner's Manual

far
aspossi ble.W hen doing so,also
observe thePARKTRONIC messages.
X Stop assoon asPARKTRONIC soundsthe
cont inuous warning tone,ifnot before.
Maneuvering mayberequired intight
parking spaces.
The Park
Assist ActiveSelectD Observe Surroundings message
appearsin
the multifunction display.
X Shift thetransmission toposition Dwhile
the vehicle isstationary.
Act iveParking Assistimmediately steersin
the other direction.
The Park
Assist ActiveAccelerate and
Brake Observe Surroundings message
appearsinthe multifunction
displa y. i
You
willachieve thebest parking results
by waiting forthe steering procedure to
complete beforemoving forwards.
X Drive forwards andbeready tobrake atall
times.
X Stop assoon asPARKTRONIC soundsthe
cont inuous warning tone,ifnot before.
The Park
Assist ActiveSelectR Observe Surroundings message
appearsin
the multifunction display.
X Further transmission shiftsmaybe
necessary.
As soon asthe parking procedure is
complete, the Park
Assist Finished message
appearsinthe multifunction
displa y.PARKTRONIC continues tobe
availa ble.
X Maneuver ifnecessary.
X Always observe thewarning messages
displa yedbyPARKTRONIC (Ypage 184).
Cancel ingActive Parking Assist You
cancancel Active Parking Assistatany
time. X
Stop themovement ofthe multifunction
steering wheelorsteer yourself.
Act ive Parking Assistwillbecanceled at
once. The Park
Assist Canceled message
appearsinthe multifunction
displa y.
or
X Press thePARKTRONIC buttononthe
cent erconsole (Ypage 185).
PARKTRONIC isswitched offand Active
Parking Assistisimmediately canceled.
The Park
Assist Canceled message
appea rsinthe multifunction display.
Act ive Parking Assistiscanceled
automatically if:
R parking usingActive Parking Assistisno
longer possible.
R you aredriving fasterthan6mph
(10 km/h).
R awheel spins,ESP®
interven esorfails. The
ä warning lamplights upinthe
instrumen tcluster.
Aw arning tone soun ds.The park ingspac e
symb oldisapp earsandthe Par
kAss ist Can
celed mes
sage appear sin the
mult ifunction displ ay.
When ActivePark ingAssist iscan celed, you
must steer again yourself.
Tr ailer towin g For
vehicleswit hatrailer tow hit ch,th e
min imum lengthfor park ingspac esissligh tly
inc reas ed.
If you have attach edatrailer toyour vehicle,
you should notu se Act ive Parking Assist.
Once theelectrical connection isestablished
between yourvehicle andthetrailer, Active
Parking Assistisno longer available.
PARKTRONIC isdeactivated forthe rear area. Driving
systems
189Driving and parking Z

Rear
viewcame ra
Impo rtant safetynotes The
rearview came raisan opt ical park ingand
mane uverin gaid. Itshows thearea behin d
your vehic lewith guide linesinthe COMA ND
display. G
WARN
ING Make
surethatnoperso nsoranimals arein
the mane uverin grang e.Oth erwise, they
could beinjured.
The rear view came raisin the handle onthe
tailgat e. :
Rear viewcame ra
View throu ghthecam era The
area behin dthe vehic leisdisplayed ina
mirr or-inv erted mann er,asinthe rear- view
mirr or. G
WARN
ING The
rear view came raisonly anaid and may
display obstacles
R fro madistort edperspect ive
R inacc urately
R may notdisplay obstaclesatall The
rear view camera doesnotrelieve youof
the respon sibility tobe cautious. Takecare
and paycareful attention. Therear view
camera maynotshow objectswhich are
R very close tothe rear bumper
R under therear bumper
R above thetailgate handle
You arerespon sibleforsafety atall times and
must continue topay attention tothe
immediate surroundingswhen parkin gand
maneuver ing.This includes thearea behind,
in fron tof,and besidethe vehicl e.Otherwi se
you couldendange ryourself and/or others. G
WARNING Under
thefollowing circumstances,therear
view camera willnotfunct ion,orwill funct ion
in alimited manner :
R the tailgate isopen
R in heavy rain,snow orfog
R at night orinvery dark places
R ifthe camera isexposed tovery bright light
R ifthe area islit by fluorescent lightorLED
lighting (thedisplay mayflicker)
R ifthere isasudden changeintemperature,
e.g. when driving intoaheated garagein
winter
R ifthe camera lensisdirty orobstruct ed
R ifthe rear ofyour vehicle isdamaged. Inthis
event ,have thecamera position andsetting
check edataquali fiedspecialist workshop.
Mercedes-B enzrecommen dsthat youuse
an authorized Mercedes-B enzCenter for
this purpose.
Do not use therear view camera inthese
types ofsituation. Youcould otherwise injure
others ordamage objectsand your vehicle
while youareparking. 190
Driving
systemsDriving and parking

Acti
vating/d eactivating therea rview
cam era X
To activ ate: make surethattheSmar tKey
is in posit ion2in the ignit ionlock .
X Make surethatthe"rear viewcamer a"
func tion isselec tedinCOMAN D(see the
separate operating instructionsfor
COMAND).
X Engage reverse gear.
The area behind thevehicle isshown inthe
COMAND displaywith guide lines. X
To change thefunction mode:usingthe
COMAND controller, select symbol :for
the "Reverse parking"functionor
symbol ;for the "Cou pling upatrailer"
function .See the separate COMAND
operatin ginst ruct ions.
The symbol ofthe select edfunc tion is
highlighted.
To deactiva te:the rear view camera is
deactivat edwhen you:
R shift thetran smission toposition P
R drive forward tenmeter s
R shift thetran smission fromposition Rto
anoth erposition (after15secon ds)
R drive forward fasterthan5mph
(10 km/ h) Displays
inthe COMAND display G
WARN
ING Use
ofrear view camera canbedangerous if
you arecolor- blindorhave impaired color
vision.
Only userear view camera ifyou can seeand
distin guish allcolored guidelines shownby
rear view camera onthe COMAND system
display. G
WARN
ING Please
notethat objec tsthat donot touch the
ground mayappear tobe furth eraway than
they actually are,forexample:
R the bumper ofavehicle parkedbehindyou
R the trailer drawbar
R the ball coupling ofatrailer towhitch
R the rear endofatruc k
R aslanted post
In such cases, youshould notuse theguide
lines tojudge thedistanc e.You may misjudge
the distanc e,which increases therisk of
impactin gthe objec ts.
Even ifthe objec tyou approach isdirectly on
the ground, donot approach theobject any
closer thanthered guide line. :
Vehicle widthincluding exteriormirrors
; Vehicle widthincluding wheelextremities
= Yellow guidelineapproximately 13ft
(4 m) away fromtherear area
? Red lane ofvehicle widthatcurrent
steering wheelangle(dynamic) Driving
systems
191Driving and parking Z

A
Yellow laneoftires atcurr entsteerin g
wheel angle(dynamic )
B Bumpe r
C Red guide lineapprox imately10 in
(0. 25 m)away fromthe rear area
D Yellow guidelineapprox imately3f t
(1 m) away fromtherear area
E White laneofvehic lewidth withsteering
wheel straight (static)
F Vehic lecen teraxle (mark erassist ance)
The guide linesareonly shown whenthe
tr ansm ission isin posit ionR.
The distan cespecif icationsonly apply to
objec tsthat areatgroun dlevel. Addit
ional messages forvehic leswith
PARKTRO NIC
: Frontwarnin gdisplay
; Addit ional PARKTRON ICmeasurem ent
operat ionalreadines sindic ator
= Rear warnin gdisplay
Vehicles withPARKTR ONIC:when
PARKTRON ICisoperat ional(Ypage 183),
addition aloperat ionalreadines s
indic ator;also appears. Warning
displays :and =are active ifthe
cor respon dingPARKTRON ICwarnin g
displays areactive (Ypage 184).They light
up yellow assoon asthe first segmen tint he
PARKTRONIC warningdisplaylights upyell ow
and they light upred assoon asthe first
segment inthe PARKTRONIC warningdisplay
lights upred. "Reverse
parking" function X
Make surethattherear view camera is
activated andthat the"Reverse parking"
funct ionisselected. Seetheseparate
operating instructionsforCOMAND.
The lane andtheguide linesareshown.
Backing upstra ight intoapar king space
without turning thesteering wheel :
Vehicle widthincluding exteriormirrors
; White lanewith steering wheelstraight
= Yellow guidelineapproximately 3ft
(1 m) away fromtherear area
? Red guide lineapprox imately 10in
(0.2 5m) away fromtherear area
X With thehelp ofwhite lane;,chec k
whethe rthe vehicle willfitinto theparking
space.
X Using thewhite laneasaguide, carefully
back upuntil youreach theend position.
Red guide line?isthen atthe end ofthe
parking space.Thevehicle isalmost
parall elin the parking space.
Reverse perpendicular parking with the
steering wheelatan angle
X Drive pasttheparking spaceandbring the
vehicle toastandst ill. 192
Driving
systemsDriving and parking

Turning
thesteering wheel
: Red lane indicating theroute thevehicle
will take withthesteerin gwheel inits
current position
; Parking spacemarking
X While thevehicle isat astandst ill,turn the
steering wheelinthe direction ofthe
parking spaceuntilthered lane reaches
parking spacemarking ;.
X Keep thesteering wheelinthat position
and back upcarefully. Backing
upwith thesteering wheelturned
: Red lane indicating theroute thevehicle
will take withthesteering wheelinits
current position
X Stop thevehicle whenitis almost exactly
in front ofthe parking space.
The white laneshould beasclose toparall el
with theparking spacemarking as
possible. Driving
tothe final position
: White laneatcurrent steering wheelangle
; Parking spacemarking
X Turn thesteering wheeltothe cent er
position whilethevehicle isstationary. :
Red guide lineapproximately 10in
(0.25 m)away fromtherear area
; White lanewith steering wheelstraight
= End ofparking space
X Back upcarefully untilyouhave reached
the end position.
Red guide line:isthen atthe end of
parking space=.Thevehicle isalmost
parall elin the parking space.
"Coupling upatra iler" function This
funct ionisonly availa bleonvehicles with
a trailer towhitch. Driving
systems
193Driving and parking Z

:
Cen tero fthe vehicle onthe red guide line
approximately 10in(0.25 m)away from
the rear area
; Center ofthe vehicle onthe yellow guide
line approximately 3ft (1 m) away from
the rear area
= Trailer drawba r
? Ball coupling
X Set theheight oftrailer drawba r= sothat
it is slightly higherthanballcoupling ?.
X Position thevehicle centrally infront of
trailer drawba r=. :
Ball coupling
; Red guide lineapproximately 10in
(0.25 m)away fromtheball coupling
= Trailer drawba rmarkerassis tant
? Trail erdrawb ar
A Sym bolforthe"Couplin gup atrailer "
fun ction X
Use theCOMA NDcontroll erto selec t
symb olA.S eethe separate operating
inst ruct ions forCOMAND .
The "Coupli ngup atrailer" function is
select ed.The distanc especific ationsnow
only apply toobjec tsthat areatthe same
level asthe ball coupling.
X Back upcarefully, makingsure thattrailer
drawbar markerassistant =point s
approximat elyinthe direct ionoftrailer
drawbar ?.
X Back upcarefully untiltrailer drawbar ?
reaches redguide line;.
X Couple upthe trailer (Ypage 210). ATTEN
TIONASSIST
Impor tantsafet ynotes ATTE
NTION ASSIS Thelps youduring long,
monot onous journeyssuch ason freeways
and interst atehighways. Itis activ ein the
range between 50mph (80km/ h)and
112 mph (180 km/h).
If ATTE NTION ASSIS Tdetec tstypical
indicat orsoffatigue orincr easing lapsesin
con centration onthe part ofthe driver, it
suggests youtake abreak. G
WARN
ING ATTE
NTION ASSIS Tis only anaid and may
detec tyour tiredness orlapses in
conc entration toolate ornot atall. Itis not a
substitute forawell-rested andatten tive
driver.
Fatigue maycause youtorecogn ize
hazardous situationstoolate, misjudge a
situation orreact more slowly. Forthis
reason, makesureyoufeel rested before you
begin driving andduring yourjourney. Make
sure thatyoutake regular breaksintime,
particularly onlong journeys. Otherwise, you
may failtorecogn izedangers intime, cause
an accident andinjure yourself andothers. 194
Driving
systemsDriving and parking

ATT
ENTI ONASSIST asses ses your level of
fa tig ue orlaps es inconce ntrationb yta king
th efo llowi ngcriteri ainto acc oun t:
R your person aldri vin gst yle, e.g. steer ing
ch arac teris tics
R dri vin gco nd ition s,e.g. time, drivin gtime
The function alit yof ATTENTI ON ASSIST is
res trict ed and warn ings may bedelaye dor
no toc cur atall:
R ifth ero ad cond ition ispoo r,e.g. ifth e
sur faceis une ven orifth ere arepotholes
R ifth ere isast ro ng side wind
R ifyou haveadop tedaspo rty dri vin gst yle
wit hhig hco rneri ng spe eds orhig hrat es of
acc eler ation
R ifyou predom inant lydri ve atspe eds under
50 mph (80km/h)or over 11 2mph
(18 0km /h)
R ifyou arecurren tly usin gCOMA NDor
mak ing ate leph onecal lwit hit
R ifthe timehas been setincorrect ly
R in act ive drivin gsit uation s,such aswhen
you chan gelanes orchan geyour speed
War ning anddisplaymessa gesinthe
mu ltifunct iondisp lay X
Ac tivate ATTENTION ASSIS Tusing theon-
board computer (Ypage 232).
Symbo l: appears inthe mult ifunc tion
display.
If ATT ENTION ASSIS Tis act ive, you willbe
warne dno soon erthan 20min utes afteryour
jour ney hasbegun. Youwillthenhear an
int ermit tentwarning tonetwice, andthe Att
ention Assist:Dro wsiness Det
ected mess
ageappears inthe
mult ifunction display. X
Ifnec essar y,tak eabreak .
X Pres sa or% tocon firm the
mess age.
On longjo urn eys, takeregular breaksin good
tim eto allow yourse lfto rest prop erly. Ifyou
do not takeabreak andATTENTION ASSIST
st ill det ectstypic alindi cators offat igue or
inc reasin glapses incon centratio n,you willbe
warn edagain after15 min utes attheearlies t.
ATT ENTION ASSIST isrese twhen you
con tinue your journ eyand start sasses sing
your tiredn ess again if:
R you switchoff theeng ine.
R you takeoff your seatbeltandopen the
driv er's door ,e.g .for achange ofdrivers or
to take abreak. Night
ViewAssist Plus
Import antsafety notes In
addition tothe illumination providedbythe
normal headlamps, NightViewAssist Plus
uses infrared lighttoilluminate theroad. The
Night ViewAssist Pluscamera picksupthe
infrared lightanddisplay sag ray scale image
in COMAND. Theimag edisp layed in
COMAND correspondstoaroad litup byhigh -
bea mheadlamps. Thisenables youtosee the
road's course andanyobstac lesingood time.
If pedestrian recognitionisactiv ated,
pedestrian srecogn izedbythe system are
highlighted inthe Night ViewAssist Plus
display. G
WARN
ING Night
ViewAssist Plusisonly anaid designed
to assist driving. Itis not asubstit utefor
atten tivedriving. Donot rely solely onthe
Night ViewAssist Plusdisplay. Continueto
look through thewindshield. Youare
respon sibleforsafety andmust drivein
accor dance withtrafficcon ditions .You could
otherwise putyourself andothers indanger. Driving
systems
195Driving and parking
Z

The
system maybeimpaired orunavailable if:
R there ispoor visibility, e.g.due tosnow,
rain, fogorheavy spray.
R the windshield isdirty, fogged upor
covered, forinstan cebyastick er,inthe
vicinit yof the camera.
R you aredriving onbends, uphillgradients
or downhill gradients.
Light fromtheheadlamps ofoncom ing
vehicles doesnotaffect theNight ViewAssist
Plus display inthe multifunct iondisplay .This
is also thecase ifyou cannot switchonthe
high-beam headlampsduetooncomin g
traffic. G
WARNING The
Night ViewAssist Pluscannot record
object simmediately infront ofor next tothe
vehicle. Whenmaneuvering, continue tolook
through thewindshield. Makesureno
persons oranimals areinthe area inwhich
you aremaneuvering. Youcould otherwise
injure them. i
Infrared
lightisnot visible tothe human
eye and therefore doesnotglare. Night
View Assist Pluscantherefore remain
switched oneven ifthere isoncomin g
traffic. :
Night ViewAssist Pluscamera
Switching onNight ViewAssist Plus Depending
onyour vehicle's dateof
manufacture, thec orà symbol for
the "Automatic drivinglights/daytime running
lamps"position islocated onthe light
switch. You
canonly activate NightViewAssist Plus
if:
R the SmartK eyisin position 2in the ignition
lock.
R itis dark.
R the light switch isset toeither c,
à orL.
R reverse gearhasnotbeen engaged.
X Make surethatCOMAND isswitched on.
X Press button :.
The Night ViewAssist Plusdispla yappea rs
in the COMAND display. :
Night ViewAssist Plusdispla y
; Pedestrian recognized
= Framing
? Symbol foractive pedestrian recognition
You canread about howtoadjust the
brightness ofthe COMAND displayin the
COMAND operatinginstructions. 196
Driving
systemsDriving and parking

i
The
infrared lampsswitch on
automatically fromaspeed ofabout 6mph
(10 km/ h).This means thatyoudonot have
the fullvisual rangewhilethevehicle is
stat ionary andcann otchec kwhether Night
View Assist Plusisworking.
Pedestrian recognition G
WARNING Pedestrian
recognitionmay beimpaired or
inoperative if:
R pedestrians arepartially orentirely
obscured byobject s,e.g. parked vehicles.
R the silhouette ofthe pedestrian inthe Night
View Assist Plusdisplay isincomplete or
interrupted, e.g.bypowerful light
reflections.
R pedestrians donot cont rast with the
surroundings.
R pedestrians arenot standing upright,for
example, ifthey aresitting, crouching or
lying down. i
Animals
arenot recogniz edbypedestrian
recognit ion.
Night ViewAssist Plusisable torecogniz e
pedestrians bytypical characterist ics,e.g. a
silhouette inthe shape ofap erson .
Pedestr ianrecogn itionisthen switch edon
automatic allyif:
R Night ViewAssist Plusisactivat ed.
R you aredriving fasterthan6mph
(10 km/ h).
R the surroundin gsare dark, e.g.when
driving outside built-up areaswithout
str eet lighting.
If pedestrian recognitionisactive,
symbol ?appears. Ifpedestrian sare
recogn ized,theyareframed =and thereby
highlighted. Ifthe pedestrian recognition
system hasbrought apedestrian toyour
atten tion,look through thewindshield to
evaluate thesituation .The actual distance toobject
sand pedestrians cannotbegauged
accurately bylooking atascreen.
It may bethe case thatobject sare highlighted
as well aspedestrians.
Fogg edup ordirt ywindsh ield If
the windsh ieldinfro ntofthe camer ais
fogge dup ordirt yon the inside oroutsid e,the
Night ViewAssistPlus display isaffec ted. G
WARN
ING Please
donot forg etthat your primar y
respo nsibilit yis to drive thevehic le.Ad river's
attention tothe road must alwaysbe his/he r
prima ryfocus whendriving.For yoursafety
and thesafety ofothers, stopbefore tryingto
remove windowfoggi ngorclea ning the
winds hieldin front ofthe Night ViewAssist
Plu scamera .
Bear inmind thatataspeed ofjust 30mph
(ap proxima tely50km/h), yourvehicle is
cover ingadistanc eof 44 feet
(approximately 14m)every second.
X To defr ost: chec kthe automatic air
con ditionin gsett ings (Ypage 132)and fold
do wn the cam eracove r(Y page 323) .
X To def ros tthe inside ofthe winds hield:
fol ddo wn the cam eracove r(Y page 323)
and clean the windsh ield (Y page 321) . Dri
ving sys tems
197Driving and parking Z

Problems
withNight ViewAssist Plus Problem Possible
causes/co nsequences andM Solutions
The
picture qualityof
Night ViewAssist Plus
has deteriorated. The
windshield wipersaresmearing thewindshield.
X Repla cethe wiper blades (Ypage 119). The
windshield issmeared afterthevehicle hasbeen cleaned ina
car wash.
X Clea nthe windshield (Ypage 321). There
iswindshield chipdamage inthe camera's fieldofvision.
X Repla cethe windshield. The
windshield isfogged upon the inside.
X Defrost thewindshield (Ypage 132). The
windshield isiced up.
X De-ice thewindshield (Ypage 131). There
isdirt onthe inside ofthe windshield.
X Clea nthe inside ofthe windshield (Ypage 321). Lane
Tracking package
General notes The
Lane Tracking packageconsistsof Blind
Spot Assist (Ypage 198)andLane Keeping
Assist (Ypage 200).
Blind SpotAssist Import
antsafety notes
Blind SpotAssist usesaradar sensor system
to monitor theareas onboth sides ofyour
vehicle. Itsupports youfrom speeds of
approximately 20mph (30km/h) .A warning
displa yin the exterior mirrorsdrawsyour
attent iontovehicles detectedinthe
monitored area.Ifyou then switch onthe
corresponding turnsignal tochange lane,you
will also receive anoptical andaudible
collision warning. BlindSpotAssist uses
sensors inthe rear bumper formonitorin g
purposes. G
WARNING Blind
SpotAssist isonly anaid designed to
assist driving. Itmay failtodetect some
vehicles andisno substitute forattent ive
driving.
Blind SpotAssist cannot detectroadand
traffic condition s.Itmay failtodetect narrow
vehicles, suchasmotorc yclesorbicycles, or
may onlydetect themtoolate.
Monitoring maybeaffected bydirty sensors,
stron gspray orpoor visibili tycaused bysnow,
rain ormist, forexample. Inthis case, vehicles
are detected lateornot atall.
Always payattent iontotraffic condition sand
your surroundings. Otherwise,youmay failto
recogniz edangers intime, cause anaccident
and injure yourself andothers. i
USA
only:
This device hasbeen approved bythe FCC
as a“Vehicular RadarSyst em” .The radar
sensor isinten dedforuse inan automotive
radar system only.Removal, tampering, or198
Driving
systemsDriving and parking