This
device hasbeen approved bythe FCC
as a“Vehicular RadarSyst em” .The radar
sensor isinten dedforuse inan automotive
radar system only.Removal, tampering, or
altering ofthe device willvoid any
warranties, andisnot permitted bythe
FCC. Donot tamper with,alter, oruse in
any non- approved way.
Any unauthorized modificationtothis
device couldvoidtheuser’s authority to
operate theequipment. i
Canada
only:Thisdevice complies with
RSS-2 10ofIndustry Canada.Operation is
subject tothe following twocondition s:
1. This device maynotcause interfer ence,
and
2. this device mustaccept anyinterfer ence
received, includinginterferencethatmay
cause undesired operationofthe device.
Removal, tampering, oraltering ofthe
device willvoid anywarranties, andisnot
permitted. Donot tamper with,alter, oruse
in any non- approved way.
Any unauthorized modificationtothis
device couldvoidtheuser’s authority to
operate theequipment.
Cruise control lever :
Toactivate orincrease speed
; Toactivate orreduce speed
= Todeactivate DISTRONIC PLUS
? Toactivate atthe current speed/last
stored speed
A Toset the specified minimum distance Activating
DISTRONIC PLUS Activation
conditions
In order toactivate DISTRONIC PLUS,the
following conditionsmust befulfilled :
R the engine mustbestarted. Itmay take up
to two minutes afterpullingaway before
DIS TRONIC PLUSisoperational.
R the electric parking brakemustbe
released.
R ESP ®
must beactive, butnot interven ing.
R the transmission mustbeinposition D.
R the driver's doormust beclosed whenyou
shift from Pto Dor your seatbeltmust be
fastened.
R the front -passenger doorandrear doors
must beclosed.
R DSR must bedeactivated.
R the vehicle mustnotskid.
Activating whiledriving
When driving atspeeds below20mph
(30 km/h) ,you can only activate DISTRONIC
PLUS ifthe vehicle infront hasbeen detect ed
and isshown inthe multifunct iondisplay .If
the vehiclein fro ntisno longe rdetec tedand
displayed, DISTRONIC PLUSswitch esoff and
a ton esounds.
X Briefly pullthecruise control lever towards
you ?,orbriefly pressup: ordown ;.
DIS TRONIC PLUSisselect ed.
X Keep thecruise control lever pressed
up : ordown ;until thedesired speed
is set.
X Remove yourfootfrom theaccelerat or
pedal.
Your vehicle adaptsitsspeed tothat ofthe
vehicle infron t,but only uptothe desired
stor edspeed. i
If
you donot fully release theaccelerat or
pedal, the DISTRON
ICPLUS Passive message
appearsinthe multifunc tion
display. Thesetdistanc eto aslower-
movin gvehicle infron twill then notbe
maint ained. Youwillbedriving atthe speed 172
Driving
systemsDriving and parking
speed
anddoes notaccelerate. Thisisbased
on the current mapdata inthe navigation
system. Example:
trafficcircle
The current speedismaintained:
R approximately 10seconds beforethe
traffic circle/T intersect ionand for
approximately 1.5seconds whendriving on
the traffic circle
R approximately 12seconds beforereaching
a freeway exitand approximately
4s econ dsafter thefreeway exit
Aft erwards, thevehicle accelerat esback to
the setspeed youspecified.
Stopp ing G
WARN
ING Never
getout ofthe vehicle whenDISTRONIC
PLUS isactivat ed.
DIS TRONIC PLUSmustalsonever be
operated, activatedordeactivat edbya
passenger orfrom outside thevehicle.
DIS TRONIC PLUSdoesnotreplace the
electr icparkin gbrake andmust notbeused
for parkin g.
The DISTRONIC PLUSbrakin geffec tis
canc eled andthevehicle canstart movin gif:
R DIS TRONIC PLUSisdeactivat edusing the
cruise control lever.
R you accelerat e.
R there isamalfunct ioninthe system oran
inte rruption inthe power supply, e.g.
batter yfailure. R
the electr icalsystem inthe engin e
compart ment,the batter yor the fuses are
tampered with.
R the batter yis discon nected.
If you wish toleave thevehicle orpark it,
deactivat eDIS TRONIC PLUSandsecure the
vehicle against rollingaway.
If DIS TRONIC PLUSdetectsthat thevehicle
in fron tisstopping, itbrakes yourvehicle until
it is stationary.
Once yourvehicle isstationary, itremains
stationary andyoudonot need todepress the
brake. i
Aft
eratime, theelectric parking brake
secures thevehicle andrelieves theservice
brake. i
Depending
onthe specified minimum
distance, yourvehicle willcome toa
standstill atasufficient distancebehindthe
vehicle infront .The specified minimum
distance isset using thecont rolonthe
cruise controllever.
The electric parking brakeautomatically
secures thevehicle ifDIS TRONIC PLUSis
activated and:
R the driver's doorisopen andthedriver's
seat beltisunfastened.
R the engine isswitched off.
R asystem malfunction occurs.
R the power supply isnot sufficient.
On steep uphillordownhill inclinesorifthere
is amalfunction, thetransmission mayalso
automatically beshifted intoposition P.
Setting aspee d G
WARNI
NG Kee
pin mind thatitm aytak eabrie fmoment
until thevehicle hasmade thenecessary
adjustmen ts.
Inc rease ordecrease thesetvehicle speedto
a value thattheprevailing roadcondit ionsand
legal speed limitspermit. Otherwise, sudden Driving
systems
175Driving and parking
Z
because
ofits narro wwidth. Thedistan ceto
the vehicle infron twillbe too shor t.
Obst ructions andstationa ryvehicles DI
STRON ICPLUS doesnotbrak efor
obst acles orstation aryvehic les.If,for
exam ple,thedete cted vehic letur ns acor ner
and reve alsanobst acle orstation aryvehic le,
DI STRON ICPLUS willnotbrak efor these.
Crossin gvehicles DI
STRON ICPLUS maymistaken lydete ct
vehic lesthat arecrossin gyour lane.
Ac tivatin gDI STRON ICPLUS attraffic lights
with crossin gtr affic ,for exam ple,could cause
your vehic leto pull away unintention ally. HOLD
function
Gener alnotes The
HOL Dfunc tion can assis tthe driver inthe
following situations:
R when pullingaway ,especiall yon steep
slopes
R when maneuvering onsteep slopes
R when waiting intraffic
The vehicle iskept stationary withoutthe
driver having todepress thebrake pedal.
The braking effectiscanceled andtheHOLD
funct iondeactivated whenyoudepress the
accelerator pedaltopull away .
Activation conditions You
canactivate theHOLD functionif:
R the vehicle isstationary.
R the engine isrunning.
R the driver's doorisclosed orifyour seat
belt isfastened.
R the electric parking brakeisreleased.
R the transmission isin position D,Ror N.
R DIS TRONIC PLUSisdeactivated.
Activating theHOLD function X
Make surethattheactivation conditions
are met.
X Depress thebrake pedal. X
Quickly depress thebrake pedalfurther
until HOLD displa
y: appea rsinthe
multifunction display.
The HOLD functionisactivated. Youcan
release thebrake pedal. Driving
systems
179Driving and parking Z
i
If
depres singthebrake pedalthe first
time does notactivate theHOLD function,
wait briefly andthen tryagain. G
WARNING The
vehicle's brakesareappli edwhen the
HOLD functionisactivated. Forthis reason,
deactivate theHOLD functionifthe vehicle is
to be set inmotion byother means (e.g.ina
car wash orby towing).
Deactivating theHOLD function The
HOLD functionisdeactivated
automatically if:
R you accelerate andthetransmission isin
position Dor R.
R the transmission isin position P.
R you apply thebrakes againwithacertain
amount ofpressure until HOLD disappe
ars
from themultifunction display.
R you secure thevehicle usingtheelectric
parking brake.
R you activate DISTRONIC PLUS. i
Aft
eratime, theelectric parking brake
secures thevehicle andrelieves theservice
brake. G
WARNING Never
getout ofthe vehicle whentheHOLD
funct ionisactivated.
The HOLD functionmust never beoperated
or deactivated byapassenger orfrom outside
the vehicle.
The HOLD functiondoes notreplace the
electric parking brakeandmust notbeused
for parking.
The braking effectofthe HOLD functionis
canceled andthevehicle couldrollaway if:
R the HOLD functionisdeactivated by
depressing theaccelerator pedalorthe
brake pedal.
R there isamalfunction inthe system oran
interruption inthe power supply,e.g.
battery failure. R
the electrical systeminthe engine
compartmen t,the battery orthe fuses are
tampered with.
R the battery isdisconnec ted.
The electric parking brakeautomatically
secures thevehicle ifthe HOLD functionis
activated and:
R the driver's doorisopen andthedriver's
seat beltisunfastened.
R the engine isswitched off.
R asystem malfunction occurs.
R the power supply isnot sufficient.
On steep uphillordownhill inclinesorifthere
is amalfunction, thetransmission mayalso
automatically beshifted intoposition P. AIRMATIC
package
General notes AIRMATIC
enablesasuspension tuning
settin gto be selected andregulates the
damping behaviorandlevel ofyour vehicle.
The system comprises aminimum oftwo
componen ts:ADS (Adaptive Damping
System) (Ypage 180)andlevel control
(Y page 181). Yourvehicle mayalsobe
equipp edwith theActive Curve System
(Y page 181).
Observe thenotes ondriving withatrailer
(Y page 210).
ADS (Adaptive DampingSystem) General
notes
ADS adapts thedamping characterist icsto
the current operating anddriving situation.
This depends on:
R your driving style
R the road surface condition s
R the ADS settin g
R the vehicle levelsettin g
Your selection remainsstoredevenifyou
remove theSmartK eyfrom theignition lock. 180
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
wheel
whentheeasy-e ntry/e xitfeat ure is
act ivat ed.
To stop steerin gwheel movemen t,mov e
st eerin gwheel adjustment lever orpres sone
of themem oryposit ionbutt ons.
Do not leave childrenunat tended inthe
vehic le,orwith access toan unloc kedvehic le.
Childre ncould open thedriver's doorand
uninten tionally activate theeasy-entry/ex it
feature, whichcouldresult inan accident
and/or serious personal injury.
X Press the= or; button onthe
steering wheeltoselect the Sett. menu.
X Press the: or9 button toselect the Convenience submenu.
X Press thea button toconf irm.
X Press the: or9 button toselect the Easy
Entry/Exit funct
ion.
You willsee theselected setting: Enabled
or Disabled .
X Press thea button tosave thesetting.
Switching thebelt adjustm enton/off
For further informat iononbelt adjustmen t
(Y page 52).
X Press the= or; button onthe
steering wheeltoselect the Settings
menu.
X Press the: or9 button toselect the Convenience submenu.
X Press thea button toconf irm.
X Press the: or9 button toselect the Belt
Adjustment funct
ion.
You willsee theselected setting: Enabled
or Disabled .
X Press thea button tosave thesetting.
Switching theFold inmirr orswhen
locking function on/off
If you switch onthe Fold Mirrors in when
Locking funct
ion,theexter iormirrors foldin
when youlock thevehicle. Ifyou unlock the
vehicle andthen open thedriver's orfront - passenger
door,theexter iormirrors foldout
again.
If you have switched thefunct iononand you
fold theexter iormirrors inusing thebutton
on the door (Ypage 103), theywillnotfold
out automatically. Theexter iormirrors can
then onlybefolded outusing thebutton on
the door.
X Press the= or; button onthe
steering wheeltoselect the Sett. menu.
X Press the: or9 button toselect the Convenience submenu.
X Press thea button toconf irm.
X Press the: or9 toselect the Fold
Mirrors
inwhen Locking: funct
ion.
You willsee theselected setting: Enabled
or Disabled .
X Press thea button tosave thesetting.
Resetting tofactory settings For
safety reasons, the Daytime
Running Lights: funct
ioninthe Lights submenu
is
only reset when thevehicle isstation ary.
X Press the= or; button onthe
steering wheeltoselect the Settings
menu.
X Press the: or9 button toselect the Factory
Setting submenu.
X Press thea button toconf irm.
The Reset
AllSettings? message
appears.
X Press the: or9 button toselect No or Yes .
X Press thea button toconf irmthe
selection.
If you select Yes ,
the multifunct iondisplay
shows aconf irmation message. Menus
andsubmenus
237On-board computer and displays Z
Disp
laymessa ges Poss
iblecauses/c onseq uences and M Solu
tions ?
Coo
lantLev elLow Sto
pVeh icl eTur n Eng
ine Off The
coolan tistoo hot.
X Pull over andstop thevehicle safelyandswitch offthe engine,
pay ing attent iontoroad andtraffic conditions.
X Make surethattheairsuppl yto the engine radiatorisnot
blocked, e.g.bysnow, slushorice.
X Wait untilthedispla ymessage disappearsbefore restarting the
engine. Otherwise, thereisarisk ofengine damage .
X Pay attent iontothe coolant temperature display.
X Ifthe temperature increasesagain,visit aqual ified speciali st
workshop immediately . The
poly-V-belt mayhave torn.
X Pull over andstop thevehicle safelyandswitch offthe engine,
pay ing attent iontoroad andtraffic conditions.
X Open thehood.
X Check whether thepoly-V-belt istorn.
If the poly-V-belt istorn:
! Donot cont inue driving. Theengine couldotherwise overheat.
X Consult aqual ified speciali stworkshop.
If the poly-V-belt isnot dam aged:
X Wait untilthedispla ymessage disappearsbefore restarting the
engine. Otherwise, thereisarisk ofengine damage .
X Pay attent iontothe coolant temperature display.
X Visit aqual ified speciali stworkshop. G
WARNING Driving
whenyourengine isoverheated cancause somefluidswhich mayhave leaked intothe
engine compartment tocatch fire.Youcould beseriously burned.
Steam fromanoverheated enginecancause serious burnswhich canoccur justbyopening the
engine hood.Stayawayfrom theengine ifyou seeorhear steam coming fromit.
Stop thevehicle inasafe location awayfrom other traffic. Turnoffthe engine, getout ofthe
vehicle anddonot stand nearthevehicle untiltheengine hascooled down.
! Ifthe coolant temperature exceeds248‡(120 †)donot cont inue driving. Theengine will
otherwise bedamage d. Dis
play messages
255On-board computer and displays Z
Disp
laymessa ges Poss
iblecauses/c onseq uences and M Solu
tions ? The
engin efan isdef ective.
X At coolan ttemperatures under248‡(120 †),drive tothe next
qualified specialist workshop.
X Avo idsubjec tingthe engin etoheavy loads, e.g.driving in
mountainous terrain,andstop- and-go traffic. # The
battery isnot being charged.
Possible causesare:
R adefectiv ealternator
R atorn poly-V-belt
R amalfunct ioninthe electron ics
X Pull over andstop thevehicle safelyandswitch offthe engine,
paying attentiontoroad andtraffic conditions.
X Open thehood.
X Check whether thepoly-V-belt istorn .
If the poly-V- beltistorn:
! Donot cont inue driving. Theengine couldotherwise overheat.
X Consult aquali fiedspecialist workshop.
If the poly-V- beltisnot dam aged:
X Visit aquali fiedspecialist workshop. 4
Check
Engine Oil At
Next Refueling The
engine oillevel hasdropped tothe minimum level.
Aw arning tone also soun ds.
X Chec kthe engine oillevel atthe latest whennextrefueling
(Y page 313).
X Ifnecessary, addengine oil(Ypage 314).
X Ifengine oilneeds tobe added moreoften thanusual,have the
engine checkedataqual ified specialist workshop. Inform
ationonapproved engineoilscan beobtained fromanyqual ified specialist workshop
or on the Internet athttp: //www.mbusa.com (USAonly).
! The oillevel istoo low. Avoid longjourneys withtoolittle engine oil.There isarisk of
engine damage.
The displa ymessages andthecorresponding symbolthatindicate thattheoillevel istoo
low must notbeignored. 256
Display
messagesOn-board computer and displays