
R
Ifth ewindshield inthear ea ofthemultifunc ‐
tion camer ais dir ty,or ifth ecamer ais fog‐
ge dup, damag edorcovered.
R Ifth etraf fic sig ns areha rd todetect, e.g. due
to dir tor sno w,orbecause they areco vered
or due toinsuf ficie ntlighti ng.
R Ifth einf ormation inthena vig ation system's
digit almap isincor rect or out-of-da te.
R Ifth esigns areambiguous, e.g.traffic sign s
on con stru ction sites orinad jacent lanes.
R Ifyo utur nshar plywhen traf fic sig ns areou t‐
sid eth ecamer a'sfield ofvision.
Se tting Traf fic Sign Assis t
Mult imed iasystem:
Vehicle kAssist ance TrafficSign
Assist
Ac tiv atin g/deac tivatin gaut omati cadop tion
of spe edlimits
Re quiremen ts:
R ActiveDis tance AssistDIS TRONI Cis acti va‐
te d. 0007
Select LimitAdopt ion. 0007
Activate0073 ordeacti vate 0053 thefunc tion.
The speed limitsdetected byTraf fic Sign
Assi stareaut omat icallyadop tedby Active
Dis tance AssistDIS TRONI C.
Di spl aying detected traf fic signs inthe
med iadis pla y 0007
Select Display inCOMA ND. 0007
Activate0073 ordeacti vate 0053 thefunc tion.
0009 When DISTRONIC orcruise control areacti‐
va ted, thespeed detected can bemanu ally
ad op tedas thespeed limit(→pag e17 9).
Ad jus tingthe type ofwa rning 0007
Selec tVisual &Audible ,Visual orNon e.
Ad jus tingthe warning threshold
This value determ ines thespeed atwhic ha
wa rning isissued whenexceeded. 0007
Select Warning Threshold. 0007
Setth edesir edspeed. Blind
SpotAssis tand Activ eBli nd Spo t
As sist Fu
nction ofBlind SpotAssis tand Activ e
Bli nd Spo tAs sist wit hex itwa rning
Blin dSpo tAss istand ActiveBli nd Spo tAssi st
use twolat eral, rear-facin gra dar sensor sto
monit orthear ea up to130ft (40 m)behind your
ve hicle and10ft(3 m) direct lyne xt to your vehi‐
cle.
If ave hicle isde tected atspe eds aboveappr ox‐
imat ely8 mp h(12 km/h) andthis vehicle subse‐
qu ent lyent ersth emonit oring rang edire ctly next
to your vehicle, thewa rning lam pin theoutside
mir rorlig hts upred.
If ave hicle isde tected clos eto theside ofyour
ve hicle, there dwa rning lam pin theoutside mir‐
ro rflashes .If yo uswit chon thetur nsignal indi‐
cat orinthecor responding direction, awa rning
to ne sou nds once .If th etur nsignal indicat or
re mains switchedon,allother detected vehicles
ar eindicat edonlyby theflashin gof there d
wa rning lam p.
If yo uove rtak eave hicle quickl y, no warning is
giv en. 21
2
Driving and parking

000A
WARNIN GRisk ofacci dent despite Blind
Spo tAssi st
Bli nd Spo tAssi stdoes notre act tovehicles
appr oaching andovertakin gyo uat agr ea tly
di ffer ent speed.
As are sult, Blind SpotAssis tcanno twa rn
dr iver sin this situat ion. 0007
Alw ayspa ycar eful attention tothetra f‐
fi c situ ation and maintain asaf edis‐
ta nce attheside oftheve hicle. Blind
SpotAssis tand ActiveBli nd Spo tAssi st
ar eon lyaids. Theyma yfa ilto detect some vehi‐
cles andareno subs titutefo ratt entiv edr iving.
Alw aysensur eth at ther eis suf ficie ntdist anc eto
th eside forot her road user sand obstacle s.
Exi twa rning
The exitwa rning isan addition alfunc tion of
Blin dSpo tAss istand canwarnvehicle occu‐
pants about approaching vehicles whenleaving
th eve hicle when statio nary. 000A
WARNIN GRisk ofacci dent despite exit
wa rning
The exitwa rning react snei ther tostatio nary
obj ect sno rto vehicles approaching youat a
gr eat lydif fere nt spe ed.
As are sult, theex itwa rning cannotwa rn
dr iver sin these situation s. 0007
Alw ayspa ypar ticular attention tothe
tr af fic situ ation whe nope ning thedoor s
and makesur eth er eis suf ficie ntcle ar‐
ance . If
th er eis ave hicle inthemonit oring rang e, this
is indic ated intheoutside mirror.If ave hicle
occupant opensthedoor ontheside withth e
wa rning, awa rning tone sou nds and thewa rning
lam pin theoutside mirrorst ar ts to flash.
This addit ionalfun ction ison lyavailable when
Blin dSpo tAs sis tis act ivat ed and uptoamax i‐
mum ofthre eminut esafte rth eignition has
been switchedoff.The exitwa rning isno long er
av ailable once thewa rning lam pin theoutside
mir rorflashes thre etimes. The
exitwa rning isonl yan aid and nota subs ti‐
tut efo rth eatt ent ion ofvehicle occupants. The
re sponsibili tyforopening andclosi ngthedoor s
and forlea ving theve hicle remains withth eve hi‐
cle occupants.
Sy stem limita tions
Blin dSpo tAs sis tand ActiveBli nd Spo tAssi st
ma ybe limi tedin thefo llo wing situat ions:
R ifth er eis dir ton thesensor sor thesensor s
ar eobscur ed
R inpoor visibility ,e.g. due tofog, hea vyrain or
sno w
R ifth er ear enar row vehicles, e.g.bicycles or
mo torbik es
R ifth ero ad has very wide ornar row lanes
R ifve hicles areno tdr iving inthemiddle of
th eir lane
Wa rnings maybe issued inerro rwhen driving
close tocrash barrier sor similar solidlanebor‐
der s.Alw aysmak esur eth at ther eis suf ficie nt
di st anc eto theside forot her traf fic or obs ta‐
cle s. Dr
iving and parking 21
3

Wa
rnings maybe interru pte dwhen driving along‐
side long vehicles, forex am ple truc ks,fo ra pr o‐
long edtime.
Blind SpotAssis tis no toper ationa lwhen reve rse
ge ar iseng aged.
The exitwa rning maybe limit edinthefo llo wing
situat ions:
R When thesensor sar eco veredby adjac ent
ve hicles innar row parkingspaces.
R When people approachth eve hicle.
R Intheev ent ofstatio naryor slo wlymo ving
obj ect s.
Fu nction ofbrak eapp lication (Activ eBlind
Spo tAssis t)
The brak eapplication functionisonl yav ailable
fo rve hicles withaDr iving Assistance Packag e.
If Ac tiveBli nd Spo tAssi stdetects arisk ofaside
im pact inthemonit oring rang e, acou rse-co r‐
re cting brak eap plica tion iscar ried out. This is
designed tohelp youavo idacollis ion.
The cour se-cor recting brak eap plica tion isavaila‐
ble inthespeed rang ebe twee nap prox imat ely
20 mph(3 0km/h) and125mp h(2 00 km/h) . 000A
WARNIN GRisk ofacci dent despite
br ak eapplication ofActiveBli nd Spo t
Assi st
A cou rse-co rrect ing brak eapplication cannot
alw ayspr eve ntacol lisi on. 0007
Alw aysst eer ,br ak eor accelera teyour‐
self ,espe ciallyif Ac tiveBli nd Spo t
Assi stwa rnsyo uor mak esaco urse-
co rrect ing brak eapplication. 0007
Alw aysmaint ainasaf edis tance atthe
sides. 000A
WARNIN GRisk ofacci dent despite
Ac tiveBli nd Spo tAssi st
Ac tiveBli nd Spo tAssi stdoes notre act tothe
fo llo wing:
R Ifve hicles overtak eto oclosel yon the
side, placing them intheblind spotar ea
R Vehicles approaching andovertakin gyo u
at agr ea tly differ ent speed As
are sult, ActiveBli nd Spo tAssi stma ynei‐
th er giv ewa rnings norinterve ne insuch sit‐
uations. 0007
Alw ayspa ycar eful attention tothetra f‐
fi c situ ation and maintain asaf edis‐
ta nce attheside oftheve hicle. If
acour se-cor recting brak eap plica tion occu rs,
th ere dwa rning lam pflashes intheoutside mir‐
ro rand awa rning tone sou nds. Inadditio n,dis‐
pl ay 1 indic atingth edang erofaside collision
appear sin themultifunc tiondispla y.
In rare case s,thesy stem maymak ean inappr o‐
pr iat ebr ak eapplication. Thisbrak eapplication 21
4
Driving and parking

ma
ybe interru pte dat anytime ifyo usteer
slightl yin theopposit edir ect ion oraccelera te.
Sy stem limita tions
Eit her acour se-cor recting brak eap plica tion
ap propr iate to thedr iving situation ,or non eat
all, mayoccur inthefo llo wing situat ions:
R Vehicles orobs tacle s,e.g. crash barrier s,are
locat edon both sides ofyour vehicle.
R Ave hicle approaches tooclosely ontheside.
R Youha ve adop tedaspor tydriving style wit h
high corner ing speeds.
R Youbr ak eor acc elerat esign ifican tly.
R Adr ivi ng safety system interve nes, e.g.ESP ®
or ActiveBr ak eAssi st.
R ESP ®
is de acti vated.
R Aloss oftirepr essur eor adef ective tir eis
de tected. Ac
tiv atin g/deac tivatin gBli nd Spo tAs sist or
Ac tiv eBli nd Spo tAs sist
Multimedia system:
Vehicle kAssist ance BlindSpot
Assist 0007
Activate0073 ordeacti vate 0053 thefunc tion. Ac
tiv eLan eKe eping Assist Fu
nction ofActiv eLan eKe eping Assist Ac
tiveLa ne Keeping Assistmonit orsth ear ea in
fr ont ofyour vehicle bymeans ofmultifu nction
camer a1. Itser vesto protect youag ains tunin ‐
te ntio nallylea vingyo ur lane .Yo uwill bewarned
by vibr ation pulses inthesteer ing wheel andgui‐ Dr
iving andparking 21
5

R
Youha ve adop tedaspor tydriving style wit h
high corner ing speeds orhigh ratesof accel‐
er ation.
R When ESP®
is deactiv ated.
R Ifaloss oftirepr essur eor afa ulty tirehas
been detected and displ ayed.
The system maybe impair edorma yno tfunc tion
in thefo llo wing situat ions:
R Ifth er eis poor visibility ,e.g. due toinsuf fi‐
cie ntillu mina tionofthero ad, ifth er ear e
highly variable shade condition sor inrain,
sno w,fogor hea vyspr ay.
R Ifth er eis glar e, e.g .fr om oncom ingtraffic,
th esun orreflect ions.
R Ifth ewindshield inthear ea ofthemultifunc ‐
tion camer ais dir ty,or ifth ecamer ais fog‐
ge dup, damag edorcovered.
R Ifth er ear eno lane marking s,or several
unc lear lane markingsarepr esen tfo rone
lane, e.g.around roadw orks .
R Ifth elane marking sar ewo rn,dar kor cov‐
er ed. R
Ifth edis tance totheve hicle infront istoo
shor tand thus thelane marking scann otbe
de tected.
R Ifth elane marking sch ang equ ickl y, e.g.
lanes branc hof f,cr oss one another or
mer ge.
R Ifth ero adw ayisvery nar row and windin g.
Ve hicl eswith Drivin gAss istanc epac kage or
Dr iving Assistance Pluspackag e:Ac tiveLa ne
Ke eping Assistuses radar sensor sto monit or
se veralar eas around theve hicle. Ifth era dar
sensor sin there ar bum peraredir tyor covered
wit hsn ow ,th esy stem maybe impair edorma y
no tfunc tion.If an obs tacle inthelane inwhic h
yo uar edr ivin ghas been detected, nolane-cor‐
re cting brak eap plica tion occu rs. Ac
tiv atin g/deac tivatin gAc tiv eLan eKe eping
Assis t(v ehicles withPa rking Assis t
PA RK TRONI C) 000A
WARNIN GRisk ofacci dent despite
Ac tiveLa ne Keeping Assistwa rning
A lane- correcting brak eap plica tion canno t
al wa ys bring theve hicle backint oth eor igi‐
nal lane. 0007
Alw aysst eer ,br ak eor accelera teyour‐
self ,espe ciallyif Ac tiveLa ne Keeping
Assis twa rnsyo uor mak esalane -cor‐
re cting brak eap plica tion. 000A
WARNIN GRisk ofacci dent despite inter‐
ve ntio nof ActiveLa ne Keeping Assist
Ac tiveLa ne Keeping Assistdoes notde tect
tr af fic condi tions orroad user s.In very rare
case s,thesy stem maymak ean inappr opri‐
at ebr ak eapplication, e.g.afte rint entional ly
dr iving overa soli dlane marking.
The brak eapp lication canbeinterru pte dat
an ytime ifyo usteer slightl yin theopposit e
dir ect ion. Dr
iving andparking 217

0007
Alw aysmak esur eth at ther eis suf fi‐
cie ntdist anc eto theside forot her traf‐
fi c or obs tacle s. 000A
WARNIN GRisk ofacci dent despite Lane
Ke eping Assist
Lane Keeping Assistcann otalw aysclear ly
de tect lane mar kings .
In such case s,Lane Keeping Assistcan:
R givean unnec essarywa rning
R notgiv eawa rning 0007
Alw ayspa ypar ticular attention tothe
tr af fic situ ation and keep within the
lane, espec iallyif Ac tiveLa ne Keeping
Assis taler tsyou. Be
sureto obser vethesy stem limit ations of
Ac tiveLa ne Keeping Assist. 0007
Press butt on2.
If indicat orlam p1 lights up,ActiveLa ne
Ke eping Assistis activ ated, thelane mark‐
ings aresho wnaslight intheassis tance
gr ap hic. Whe nAc tiveLa ne Keeping Assistis
activ e,thelane markings aresho wningreen
in theassis tance grap hic. Ve
hicl eto wing instruct ions
The vehicle isno tsuit able forth euse oftow bar
sy stems that areused forflat towing ording hy
to wing, forex am ple. Attach ing and using tow bar
sy stems canlead todamag eon theve hicle.
When youar eto wing ave hicle withto w bar sys‐
te ms, safedr iving charact eristic scan notbe
guar anteed forth eto wing vehicle ortheto we d
ve hicle. Thevehicle-tr ailercombination may
sw erve from side toside. Complywithth eper‐
mitt edtowing methods (→pag e37 5) andth e
ins truct ions forto wing withbo th axle son the
gr ound (→pag e37 7). 21
8
Driving and parking

Ex
am ple: standar ddispla y
1 Trip dis tance
2 Totaldis tance
Ve hicl eswithout a48 Von-b oardele ctrical
sy stem (EQ Boos tte ch nology): Ex
am ple: trip com puter
1 Totaldis tance
2 Driving time
3 Averag espeed
4 Averag efuel consum ption
Ve hicl eswith a48 Von-b oardele ctrical sys‐
te m (EQ Boo sttech nology): Ex
am ple: trip com puter
1 Totaldis tance
2 Driving time
3 Driving time with low emiss ions
4 Averag espeed
5 Averag efuel consum ption
6 Distance coveredwit hlow emission s 226
Instrument Displayand on-boar dcom puter

No
teson oper ating safety 000A
WARNIN GRisk ofdist ra ction from infor‐
mati onsystems andcomm unication s
eq uipment
If yo uoper ateinf ormat ionand comm unic a‐
tio neq uipme ntintegratedin theve hicle
when driving, youwill bedistract ed from the
tr af fic situ ation. Thiscou ldalso cau seyouto
lose control of theve hicle. 0007
Onlyoper ateth is eq uipmen twhen the
tr af fic situ ation per mits. 0007
Ifyo ucan notbe sur eof this, stop the
ve hicle whilstpa ying attention toroad
and traffic condi tions andoperate the
eq uipment withth eve hicle statio nary. 000A
WARNIN GRisk ofdist ra ction from oper‐
ati ng mob ile commu nication equipme nt
whi letheve hicle isin mo tion
If yo uoper atemob ilecomm unic ationeq uip‐
men twhen drivin g,youwill bedistract ed fr
om thetra ffic situat ion.This could also
cause youto lose control of theve hicle. 0007
Onlyoper ateth is eq uipmen twhen the
ve hicle isstatio nary. Fo
ryo ur ow nsa fety,al wa ys obser vethefo llo w‐
ing point swhen operatingmobile communic a‐
tion seq uipmen tand espec iallyyo ur voice con ‐
tr ol system:
R Obser vetheleg alrequ iremen tsforth ecoun‐
tr y in whic hyo uar edr ivin g.
R While drivin g,on lyop eratemobi lecom mun i‐
cat ionseq uipme ntand your voice con trol
sy stem when thetra ffic con dition sper mit it.
Yo uma yot her wise bedistract ed from the
tr af fic condi tions andcausean acci dent,
inju ring yourself and other s.
R Ifyo uuse thevo ice con trol system inan
emer gency your voice can chang eand your
te lephon ecall, e.g.anemer gency call,can
th er eb ybe unnec essarilydela yed.
R Famili arize yourself withth evo ice con trol
sy stem func tionsbef orest ar tin gth ejour ney. Oper
ation Ov
ervie wof oper ation oftheVo ice Contr ol
Sy stem onthemu ltifunct ionsteer ing wheel The
Voice Cont rolSy stem isoper ational approx‐
imat elyth irty seco ndsafte rth eignition is
switc hedon. Vo
ice Cont rolSy stem 233