Sy
st Sy
stem limits em
limits
The system limits ofTra1c Sign Assis tappl yto
th ede tection oftra1c signs(/ page238) .
Spe edlimit sbelo w12 mph(2 0km /h)ar eno t
au tomaticall yadop tedby thesy stem asthestor ed
speed. Temp oraryspeed restr iction s(e .g. fora
cer tain time ordue towe ather cond itions) cannot
be proper lyde tected bythesy stem. Themaxi-
mum permissible speedapplying toave hicle with
a trailer isno tde tected bythesy stem.
Ad just thespeed inthese situations. &
W W
ARNIN G ARNIN
GRisk ofaccident duetoActive
Speed LimitAssistada pting theve hicle' s
speed
The speed adoptedby ActiveSpeed Limit
Assi stma ybe toohigh orincor rect insome
indi vidu alcases, suchas:
R atspeed limitsbelo w12 mph(20 km/h)
R inwe tcondi tions orinfog
R when towing atrailer #
Ensur eth at thedr iven speed complies
wit htra1c regula tions . #
Adjust thedr iving speed tosuit current
tr a1c andweather cond itions. FF
unct ionofr unct
ionofrout out
e-based speed adapt e-b
ased speed adaptatio n atio
n
When ActiveDist ance AssistDIS TRONI Cis acti va-
te d, theve hicle speed willbeadap tedaccor dingly
to thero uteev ents ahead. Depending onthedr ive
pr og ram select ed,theve hicle negotiat es aro ute
ev ent ahead inan economical, comfortable or
dynamic manner.When thero uteev ent has been
passed, theve hicle acceler ates again tothe
st or ed spee d. These tdi st an ce totheve hicle in
fr ont ,ve hicles detected ahead andspeed restr ic-
ti on sah eadar eta ke nint oac cou nt.
Yo ucan activ ateand deactiv atero ute-based
speed adaptation inthemultimedia system
(/ page226).
The follo wing routeeve nts are take nint oac cou nt:
R Cur ves
R T-int ersections, roundabouts andtollplazas
R Turnsand exits R
Tra1c jams ahead (onlywit hLiv eTra1c Infor-
matio n)
% When theto llst ation isreac hed, ActiveDis-
ta nce AssistDIS TRON ICado ptsth espeed as
th estor ed speed.
Also, thespeed isreduced ifth etur nsignal indi-
cat ortochang elane sis switc hedonand one of
th efo llo wing situations isde tected:
R Turning o.atintersections
R Driving onslowing-do wnlanes
R Driving onlanes adjacent toslo wing -down
lane s
The driver isresponsi bleforch oosing theright
spe edand observing other road user s.This
appli esinpar ticu lartointersections, roundabouts
and tra1c lights, asroute-based speedadaptation
does notbr ak eth eve hicle toast ands till.
When routeguidance isactiv e,the/r st speed
adjustmen tis car ried out automaticall y.Ifth etur n
signal indicat orisswitc hedon,theselect edrout e
is con/ rmed and further speed adjustmen tis acti-
va ted. Dr
iving andparking
225 225
suit
able forth een vironment alconditions andalso
appl yth ebr ak es yourself ifre qu ired.
A A
ctiv ctiv
ating/deactiv ating/deactiv
atingDSR(v ating
DSR(vehicles wit ehicles
with h
O.- O.-
r r
oad oad
pack pac
kag ag
eor E-A e
or E-Activ ctiv
eBody Contr e
Body Contr ol) ol)
R R
eq eq
uir uir
ements: ements:
R Youar edr iving at24 mph(40 km/h) or
slo wer.
If th ecur rent vehicle speed istoohigh, the
Max. Speed 24mph mess ageappea rsinthe
multif unctiondispla y.
R Youha ve notsel ect eddrive pr og ram C or
B.
R ActiveDist ance AssistDIS TRONI Cis deac tiva-
te d. #
T T
o activ o
activ at at
e: e:
pull rock er switc h1.
Indicat orlam p2 lights up.
The î symbol appearsin themultifun ction
displa y. #
T T
o deactiv o
deactiv at at
e: e:
pull rock er switc h1.
Indicat orlam p2 and theî symbol go
out. A A
ctiv ctiv
ating/deactiv ating/deactiv
atingDSR(Do ating
DSR(Downhill Speed wnhill
Speed
R R
egulation) (v egulation)
(vehicles wit ehicles
without hout
O.-r O.-
road oad
pack pac
kag ag
e) e)
R R
eq eq
uir uir
ements: ements:
R Youar edr iving at24.8 mph(40 km/h) or
slo wer.
If th ecur rent vehicle speed istoohigh, the
Max. Speed 24mph mess ageappea rsinthe
multif unctiondispla y.
R ActiveDist ance AssistDIS TRONI Cis deac tiva-
te d.
Multimedi asy stem:
4 © 5
Settings
5 Schnellzug riff(Quic kaccess) #
Select îDSR.
The î DSRsymbol appearsin themulti-
function displaywhen thefunction isactiv a-
te d.
% When youswitc hto theG drive pr og ram,
th efunction isaut omaticall yactiv ated. 228228
Dr
iving andparking
If
th esy stem detects that thedr iver has not
st eer edtheve hicle fora consider ableperiod of
time orhas remo vedth eir hands from thesteer ing
wheel, display1 appear s.Ifth edr iver still does
no tst eer theve hicle, awa rning tone sou nds in
add itionto thevisual warning messa ge.
If th edr iver does notre act tothewa rning fora
consider ableperiod, thesy stem can initiat ean
emer gency stop (/ page231) .
The warning isno tissued orisstopped whenthe
dr iver giv es con/ rmation tothesy stem:
R The driver steer sth eve hicle. R
Depen dingon t Depen
dingon the coun try he
coun try: :
th edr iver presses
a steer ing wheel buttonoroper ates Touc h
Contr ol
If Ac tiveSt eer ing Assist detects that asy stem
limi thas been reac hed, avisu alwa rning isissued
and awa rning tone sou nds.
Obs erve theno teson drivi ng systems andyour
re sponsi bility;yo uma yot her wise failto recogn ize
dang ers(/ page209).
Sy st Sy
stem limit s em
limit s
Ac tiveSt eer ing Assist hasalimit edsteer ing tor-
qu efo rlat eral guidance. Insome cases,th esteer -
ing interve ntion isno tsu1 cienttokeep theve hi-
cle inthelane ortodrive th ro ugh exits.
The system maybe impair edorma yno tfunction
in thefo llo wing instances:
R Ther eis poor visibility ,e.g. duetosno w,rain,
fo g, hea vyspr ay,gr eatl yva rying ambient light
or strong shad owson thero ad.
R Ther eis glar e,e.g .fr om onco mingtra1c,
dir ect sunl ight orre0ectio ns.
R Insu1 cientroad illumin atio n. R
The wind shield isdir ty,fo gg ed up, dam aged or
co veredin thevicinity ofthecamer a,e.g. bya
sti cker.
R No, orseveral,unclear lanemarkings arepr es-
ent forone lane, orthemar kings chang e
qu ickl y, forex am ple, inacons tructi onarea or
int ersecti ons.
R The lane marking sar ewo rnawa y,dar kor cov-
er ed up, e.g. bydirtor sno w.
R Ifth edist ance totheve hicle infront istoo
shor tand thus thelane markings canno tbe
de tected.
R The roadis na rrow and wind ing.
R Ther ear eobs tacles onthelane orprojecting
out intoth elane, suchas object markers.
The system doesno tpr ov ide assist anceinthefo l-
lo wing conditions:
R Ontight curvesand when turnin g.
R When crossin gint ersecti ons.
R Atroundabouts ortollst ations.
R When towing atrailer .
R When thetir epr essur eis toolow. 230230
Dr
iving andparking
&
W W
ARNI NG ARNI
NGRisk ofaccid ent ifAc tiveSt eer -
ing Assist unexpect edlyst ops function ing
If th esy stem limits ofActiveSt eer ing Assist
ar ere ac hed ther eis no guar anteethat the
sy stem will remain activeor will keep theve hi-
cle inlane . #
Alwayske ep your hands onthesteer ing
wheel andobser vethetra1c carefull y. #
Alwaysst eer theve hicle paying attent ion
to tra1 cco nd itio ns . &
W W
ARNI NG ARNI
NGRisk ofaccid ent ifAc tiveSt eer -
ing Assist unexpect edlyint erve nes
The detection oflane marking sand obje cts
ma ymalfu nctionand cause unexpect edsteer -
ing interve ntions . #
Steer accor dingtotra1 cco nd itio ns . AA
ct iv ct
ivat ing/ deact iv at
ing/ deact ivat ing A at
ing Act iv ct
ive St e
St eer eer
ing Assist ing
Assist
R R
eq eq
uir uir
ements: ements:
R ESP ®
is activ ated, but isno tint erve ning. R
ActiveDist ance AssistDIS TRONI Cis acti va-
te d.
Multimedi asy stem:
4 © 5
Settings 5
Quick Access #
Select 004FSteering Assist. FF
unction ofA unction
ofActiv ctiv
eEmer g e
Emer gency St ency
Stop Assist op
Assist If
th esy stem detects that thedr iver has not
st eer edtheve hicle fora consider ableperiod of
time orhas remo vedth eir hands from thesteer ing
wheel, display1 appear sin theInstr ument Dis-
pla y.Ifth edr iver still does notst eer theve hicle,
or giv es no con/r mation tothesy stem, awa rning to
ne sou nds inadd itionto thevisual warning mes-
sag e.
If th edr iver still does notre spond tothewa rning,
th eBeginning Emergency Stopmessag eappear s
in theInstr ument Display.Ifth edr iver still does
no tre spond ,Ac tiveDist ance AssistDIS TRONI C
re duces thespeed. Thevehicle isdecel erated in
st ag es toast ands till.
Depe nding on thecountr y,at speeds below
40 mph(6 0km /h)th ehazar dwa rning lights
switc hon automaticall y.
When theve hicle isstation ary, thefo llo wing
actions arecar ried out:
R The vehicle issecur edwithth eelectr icpar k-
ing brak e.
R ActiveDist ance AssistDIS TRONI Cis ended.
R The vehicle isunl ocked.
R Ifpossible, anemer gency callis pla ced tothe
Mercede s-Benzemergency callcent er.
The driver can cancel thedeceler ationatanytime
by per form ing one ofthefo llo wing actions:
R Steer ing Dr
iving andparking
231 231
&
W W
ARNI NG ARNI
NGRisk ofaccid ent ifLane Change
Ass istune xpectedl yst ops functio ning
If th esy stem limit ations forLane Chang e
Assist have been reac hed, ther eis no guar an-
te eth at thesy stem will remain active.
Lane Chang eAssis tcanno tth en assist youby
appl ying steer ing torq ue . #
Alwa ys monit orthelane chang eand
ke ep your hands onthesteer ing wheel.
Obser vethetra1c conditions andsteer
and/or brak eif necessar y. Sy
st Sy
stem limits em
limits
The system limitat ions ofActiveSt eer ing Assist
appl yto ActiveLane ChangeAssi st
(/ page229) .
The system mayals obe impair edorma yno tfunc-
tion inthefo llo wing situations:
R The sensor sin there ar bum peraredir ty,dam-
ag ed orcoveredby ast icke ror ice and snow,
fo rex am ple.
R The exterior lightin gsho wsamalf unct ion. %
The ActiveLane ChangeAssi stsens orsadjust
aut oma tically whi leacer tain dist ance isbeing
dr iven aTer theve hicle hasbeen delivered.
Ac tiveLane ChangeAssi stisuna vailable or
onl ypar tiall yav ailabl edur ing this teac h-in
pr ocess; noarro w appear sne xt to theØ
Ac tiveSt eer ing Assist symbol whenthetur n
signal indicat orisactiv ated.
Selecting A Selecting
Activ ctiv
eLane Chang e
Lane Chang eAssist e
Assist
Multimedia system:
4 © 5
Settings 5
Assistance
5 Active LaneChange Assist #
Select thefunction . AA
ctiv ctiv
eBr e
Br ak ak
eAssist e
Assist FF
unction ofA unction
ofActiv ctiv
eBr e
Br ak ak
eAssist e
Assist
Ac tiveBr ak eAssi stcons istsofthefo llo wing func-
tions:
R Dist ance warning function
R Autonomo usbrak ing functi on
R Situa tion-d ependent brak ing assist anc e R
V V
ehi cleswit ehi
cleswit hDr h
Dr iving Assist iving
Assistanc eP anc
ePac k ac
kag ag
e: e:
Eva-
siv eSt eer ing Assist andcorner ing function
Ac tiveBr ak eAssi stcan help youto minimiz eth e
ri sk ofacolli sion withve hicles, cyclis tsor pedes-
tr ians ortoreduce thee.ect sof suc hacollision.
If Ac tiveBr ak eAssi sthas detected arisk ofcolli -
sion ,a wa rning tone sou nds and theL dis-
ta nce warning lamplights upintheinst rument
clust er.
V V
ehicles wit ehicles
withPRE- S h
PRE- SAFE AFE
® ®
: :
dependi ngon thecoun-
tr y, an addit ionalhap ticwarning occur sin the
fo rm ofslight, repeat edtensio ning oftheseat
belt.
If yo udo notre act tothewa rning, autonomous
br aking canbeinitiat edincritical situations.
In especia lly cr itical situations, ActiveBr ak eAssi st
can initiat eaut onomo usbraki ng directl y.In this
case, thewa rning lampand warning tone occ ur
sim ultaneo uslywit hth ebr aking application.
If yo uappl yth ebr ak eyo urself inacr itical situa-
tion orappl yth ebr ak edur ing autonomous brak -
ing, <0054004A0055005600420055004A0050004F000E0045004600510046004F0045
0046004F0055> braking assistance Dr
iving andparking
233 233
occur
s.The brak epr essur eincr eases uptomaxi-
mum full-sto pbr aking ifnecessar y.
Obser vetheno teson drivi ng systems andyour
re sponsi bility;yo uma yot her wise failto recogn ize
dang ers(/ page209) . If
aut onomo usbraking orsituat ion-depen dent
br aking assistancehasoccur red, displa y1
appear sin theInstr ument Displayand then aut o-
maticall ygoes outaTer ashor ttime.
If th eaut onomous braking function orthesitua-
tion-dependen tbr aking assistanceistrigg ered,
additional prev entiv emeasur esforoccupant pro-
te ction (PRE-SAFE®
)ma yalso beinitiat ed. &
W W
ARNIN G ARNIN
GRisk ofan accident causedby
limit eddetection perform ance ofActive
Br ak eAssi st
Ac tiveBr ak eAssi stcanno talw aysclear lyiden-
tify objects andcom plextra1c situations.
In suc hcases ,Ac tiveBr ak eAssi stmight :
R Giveawa rning orbrak ewit hout reason
R Notgiv eawa rning ornotbr ak e
Ac tiveBr ak eAssi stisonl yan aid. Thedriver is
re sponsi bleformaint aining asu1cien tly saf e
dist ance totheve hicle infront ,ve hicle speed
and forbr aking ingood time. #
Alwayspa ycar eful att ent ion tothetra1c
situation; donotre ly on ActiveBr ak e
Assi stalone . #
Beprepa redto brak eor swerve ifneces-
sar y. Also
observe thesy stem limits ofActiveBr ak e
Assi st. The
individu alsubfunc tionsar The
individu alsubfunc tionsareav e
av ailabl ein v ailabl
ein var ar
i- i-
ous speed r ous
speed rang ang
es: es:
The distance warning function canissue awa rn-
ing inthefo llo wing situations:
R From appr oximat ely4 mp h(7 km /h),ifyo ur
ve hicle iscriticall yclose toave hicle, cyclis tor
pedes trian, youwill hear anintermitt entwarn-
ing tone and theL distance warning lamp
lights upintheinst rument cluster.
V V
ehicles wit ehicles
withPRE-S h
PRE-S AFE AFE
® ®
: :
depending onthe
count ry,an addit ionalhap ticwarning occur s
in thefo rm ofslight, repeat edtensio ning of
th eseat belt.
Br ak eimmediat elyor take evasiv eactio n,prov i-
ded itis saf eto do soand thetra1c situation
allo wsthis.
Dist Dist
ance w ance
war ar
ning function (v ning
function (vehicles wit ehicles
without Dr hout
Driv- iv
-
ing Assist ing
Assist anceP ance
Pac k ac
kag ag
e) e)
The distance warning function canaidyouin the
fo llo wing situations withan intermitt entwarning
to ne and awa rning lamp:
R atspeeds uptoappr oximat ely155 mph
(2 50 km/h) whenapproaching vehicles ahead 234234
Dr
iving and parking
#
End thesuppor tby activ elyst eer ing in
non -critical situ atio ns. #
Drive at an appr opriatespeed ifth er e
ar epedestr iansclose tothepat hof your
ve hicle. Sy
st Sy
stem limits em
limits
Fu llsy stem perform ance isno tye tav ailabl efo ra
few secon dsaTer switchingontheve hicle oraTer
dr ivi ng o..
If Ac tiveBr ak eAssi stisim pair edorinoper ative
due toamalf unct ion,th e00C7 warning lamp
appear sin theInstr ument Display.
The system maybe impai redor ma yno tfun ction,
par ticular lyin thefo llo wing situations:
R Insno w,rain, fog, hea vyspr ay,if th er eis glar e,
in dir ect sunlight oringreatl yva rying ambient
light.
R Ifth esensor sar edir ty,fo gg ed up, dam aged or
co vered.
R Ifth esensor sar eim pair eddue tointerfere nce
fr om other radar sour ces, e.g.strong radar
re 0ectio nsinapar kingga rage . R
Ifaloss oftirepr essur eor amalf unctionin g
tir ehas been detected and displa yed.
R IfDSR isactiv e.
R Incom plextra1c situations whereobjects
canno talw aysbe clear lyident i/ed.
R Ifpedestr iansorvehicles movequickl yint o
th esensor detection rang e.
R Ifped estr ians arehid den byother objects.
R Ifth etypical outline ofapedestr iancanno tbe
distin guished from thebac kground.
R Ifapedestr ianisno tde tected assuc h,e.g .
due tospecial clothing orother objects.
R Ifth edr iver's seat beltisno tfa stene d.
R Oncurves withatight radius.
% The ActiveBr ak eAssi stsens orsadjust auto-
mati callywhile acer tain dist ance isbeing
dr iven aTer theve hicle hasbeen delivered.
Ac tiveBr ak eAssi stisuna vailable oronl ypar -
tiall yav ailabl edur ing thete ac h-in process. A A
ctiv ctiv
atin g/deact iv atin
g/deact ivatin gA atin
gActiv ctiv
eBr e
Br ak ak
eAssis t e
Assis t
R R
eq eq
uir uir
emen ts: emen
ts:
R The vehicle isswitc hedon.
Mul time diasystem:
4 © 5
Setting s5
Assi stance
5 Active BrakeAssist #
Select thedesir edsetting .
The setting isretained when thedr ive sy stem
is ne xt star ted.
Deactiv Deactiv
atingA ating
Activ ctiv
eBr e
Br ak ak
eAssist e
Assist
% Itis recommen dedthat youalw ayslea ve
Ac tiveBr ak eAssi stacti vated. #
Select Off.
The distance warning function, theaut ono-
mous braking function andEvasiv eSt eer ing
Assist aredeactiv ated.
When theve hicle isne xt star ted, themiddle
se tting isaut omaticall yselect ed.
% IfAc tiveBr ak eAssi stisdeac tivated, the00D4
symbol appearsin thestatus baroftheInstr u-
ment Displa y. Dr
iving andparking
237 237
TT
r r
a1c a1c
Sign Assis t Si
gn Assis t FF
unct ionof unct
ionofTr Tr
a1c a1c
Sign Assis t Si
gn Assis t
Tr a1c Sign Assis tde tects tra1c signswit hth e
multif unctioncamer a(/ page209) .It assists
yo uby displa yingdetected speed limitsand over-
ta king restr iction sin theInstr ument Display.
Obser vetheno teson drivi ng systems andyour
re sponsi bility;yo uma yot her wise failto recogn ize
dang ers(/ page209) .
Sin ceTra1c Sign Assis talso uses thedat astor ed
in thena vig ation system, itcan updat eth edispla y
in thefo llo wing situations without detectin gtra1c
sign s.
The camer aalso detects tra1c signswit ha
re str iction indicat ed byan addit ionalsign (e.g.
when wet).Thes ear eonl ydisp laye difare str ic-
ti on appliesor ifth esy stem canno tclear lyde ter-
mine whether there str iction applies.
W W
ar ar
nin gwh en t nin
gwh en the maximu mper he
maximu mpermi ssible spee dis mi
ssible spee dis
ex ex
ceeded ceeded
The system can warnyouifyo uunint entionall y
ex ceed themaximum permissible speed.Todo
th is, youcan specify inthemultimedia system by
ho wmuc hth emaximum permissible speedcan be
exceeded beforeawa rning isissued. Youcan
specify whether thewa rning isto be justa visual
wa rning oran acoustic oneaswell.
Displa Displa
yin t y
in the Ins he
Instr tr
ument Display ument
Display Instr
ument Displayin theWi descr eenCockpit
1 Maximum permissible speed
2 Maximum permissible speedwhenther eis a
re str iction
3 Additional signwithre str iction
% V V
eh icle swi t eh
icle swi th ast h
ast an da r an
da rd Ins d
Instr tr
um ent Disp lay um
ent Disp lay: :
A + +
sy mb olne xt to atra1c signintheInstr u-
ment Displa yindicat esthat addit ionaltra1c
sign sha ve been detected. These canalso be displa
yedin themedia displayand optionall y
in theHead-up Display.
If Tra1c Sign Assis tcann otdeterm ine themaxi-
mum permissible speed(e.g.duetomissing
signs), thefo llo wing displa yappear sin theInstr u-
ment Displa y: This
isdis pla yedcontinu ouslyif th eve hicle isin a
coun try wher eTra1c Sign Assis tis no tsuppor ted.
Tr a1c Sign Assis tis no tav ailabl ein all coun tries.
% Also obser vetheinf ormation ondispla ymes-
sag esinTra1c Sign Assis t(/ page423) .
Sy st Sy
stem limits em
limits
The system maybe impair edorma yno tfu nct ion
par ticu larlyin thefo llo wing situations:
R Ifth er eis poor visibility ,e.g. duetoinsu1c ient
illumination ofthero ad, highl yva riable shade
cond itions, rain, sno w,fogor hea vyspr ay.
R Ifth er eis glar e,e.g. from oncoming tra1c,
dir ect sunlight orre0ectio ns. 23
8 23
8 Dr
ivin g and parking