Page 217 of 610

HOLD
functio n HOLD
functio n
The HOLD function holdsth eve hicle atast and‐
st ill wit hout requ iring youto depr essthebr ak e
pedal, e.g.while waitin gin traf fic.
The HOLD functionisonly anaid. The responsi‐
bility forth eve hicle safely standi ngstill remains
wit hth edr iver .
Sy stem limit s
The HOL Dfun ction isonl yint end edtoprov ide
assis tance when drivi ng and isno ta su fficien t
mean sof saf eguar dingtheve hicle agains tro lling
aw ay when statio nary.
R The incline mustno tbe great erthan 30%. Ac
tiv atin g/deac tivatin gthe HOL Dfunc tion &
WARNIN GRisk ofan acci dent dueto the
HOLD functio nbei ng activ ewhe nyo u
lea vetheve hicle
If th eve hicle isonl ybr ak ed withth eHOLD
func tion itcould, inthefo llo wing situat ions,
ro llaw ay:
R Ifth er eis amalfunct ioninthesy stem or
in thepo we rsupp ly.
R Ifth eHOLD function isdeactiv ated by
depr essing theaccelera torpeda lor brak e
peda l,e.g. byave hicle occupant. #
Alw ayssecur eth eve hicle agains tro ll‐
ing away bef oreyo ulea veit. Re
quirement s:
R The vehicle isstatio nary.
R The driver's door isclosed ortheseat belton
th edr iver's side isfastened.
R The engine isrunning orhasbe en automati‐
cally switc hedoffby theEC Ostar t/ stop
funct ion. R
The electr icpar king brak eis released.
R ActiveDis tance AssistDIS TRONI Cis de acti ‐
va ted.
R The transmis sionisin position 005B,005Eor005C.
Ac tiv atin gthe HOL Dfun ction #
Dep ress thebr ak epedal, andafte ra shor t
time quickl ydepr essfurther until the00D9
displa yappear sin thedr iver displa y. #
Release thebr ak epedal.
Deactiv atingtheHOLD function #
Depr esstheacceler ator pedal topull away.
or #
Depr essthebr ak epedal untilthe00D9 dis‐
pla ydisappear sfrom thedr iver displa y.
The HOLD functionisdeactiv ated inthefo llo w‐
ing situat ions:
R ActiveDis tance AssistDIS TRONI Cis acti va‐
te d.
R The transmission isshif tedto position 005D.
R The vehicle issecur edwithth eelectr icpar k‐
ing brak e. Dr
iving andparking 21
5
Page 218 of 610

In
thefo llo wing situat ions,th eve hicle isheld by
tr ans missi on positio n005D and /or bytheelectr ic
par king brak e:
R The seat beltisunf astened andthedr iver's
door isopened.
R The vehicle isswitc hedoff.
R Ther eis asy stem malfunct ion.
R The powe rsupp lyis insuf ficie nt.
In addition, theBrak eImmediately messagema y
appear inthedr iver displa yand ahor nto ne may
sou ndatregular interva ls. #
Imm ediat elydepr essthebr ak epedal firm ly
unt ilth ewa rning mess agedisappear s.
The HOL Dfunc tion isdeact ivat ed. #
Addition allysecur eth eve hicle agains tro lling
aw ay. Fu
nction ofHill StartAss ist Hill
StartAs sis tholds theve hicle fora shor t
time when pulling away on ahill under thefo l‐
lo wing condition s:
R The transmissio nis in posit ion005Bor005E. R
The elect ric pa rking brak eis released.
This gives youen ough timeto mo veyour foot
fr om thebr ak epedal totheaccelera torpeda l
and depr essitbef oreth eve hicle begins toroll
aw ay. &
WARNIN GRisk ofacci dent andinjury
due totheve hicle rolling away
Af tera shor ttime, HillStartAs sis tno longer
holds theve hicle. #
Swif tly mo veyour foot from thebr ak e
pedal totheaccelera torpeda l.Do not
lea vetheve hicle when itis being held
by HillSt artAs sis t. AT
TENTI ONASSIST Fu
nction ofATTENTI ONASSIST wit hmi cro‐
sleep detection
% The microsleep detection subfu nction isonly
av ailable incom binatio nwit hth edr iver cam‐
er a. AT
TENTION ASSISTassis tsyouon long,mon oto‐
nous journeys,e.g. onhighw aysand trunk roads.
If ind icat orsof fatig ue orincr easing laps es in
conce ntration onthepar tof thedr iver are
de tected, thesy stem sugg ests taking abr ea k.
AT TENTION ASSISTis onl yan aid. Itcann ot
alw aysde tect fatig ue orlaps es inconce ntration
in tim e.The system isno ta subs titutefo ra we ll-
re sted and attent ive dr iver .On long journeys,
ta ke regular break sin good timethat allo wfor
adeq uatere cup erati on.
Yo ucan choose between twose ttings:
R Standar d:nor mal system sensit ivity.
R Sensitiv e:incr eased system sensit ivity:the
dr iver iswa rned ear lier and theatt ent ion
le ve lde tected bythesy stem isadap ted
acc ordin gly.
If dr ow siness orincr easing lapsesinconcen tra‐
tion arede tected, theATTE NTION ASSIS T:Take
a Break !wa rning appear son thedr iver displa y.
Yo ucan ackn ow ledg eth emessag eand take a
br eak wher enec essar y.Ifyo udo nottak ea
br eak and ATTENTION ASSISTcont inues to
de tect incr easing lapse sin concentr ation, you 21
6
Driving and parking
Page 219 of 610

will
bewarned again afte ra minimu mof
15 minut es. The
follo wing informatio nis displa yedon the
dr iver displa y:
R The lengt hof thejour neysince thelas tbr eak
R The attent ion leve lde term ined byATTENTION
ASS IST:
- Mor esegments 2ofthecir cle dis‐
pla yed, thehigher thede tected attentio n
le ve l.
- Fewe rsegments 2aredisp laye din the
cir cle astheatt ent ion leve ldecr eases.
R Micr osleep detection 1status : -
Deact ivat ed: displa y1 ishidde n.
- Activated butno top erati ona l:di sp lay 1
is gray .
- Activated and operati ona l:di sp lay 1 is
gr ee n.
If AT TENTION ASSISTis unable tocal cul ateth e
att ent ion leve land cannotissue awa rning, the
Sys tem Suspend edmes sage appear s.
If th esy stem, whic huses thedr iver camer a,
de tects indicatorsof micr osleep ,th eATTE N-
TION ASSIS TNodding OffTake aBreak !wa rning
mess ageappear son thedr iver displa yand a
wa rning tone sou nds simu ltane ously .Thi swa rn‐
ing mess agemus tbe con firm ed byTouc hCon ‐
tr ol. Itis recomme ndedthat youta ke abr eak
imm ediat ely.
If awa rning isgiv en on thedr iver displa y,the
multime diasystem offers to sear chfora re st
ar ea. Youcan selectare st area and star tna vig a‐
tio nto this rest area.
AT TENTION ASSISTwit hmicr osleep detection is
acti vatedaut omatic allywhen theengine is re
star ted. The lastselect edsensit ivityleve l
re mains stor ed.
Sy stem limit s
AT TENTION ASSISTis activ ein the37 mph
(60 km/ h)to 124mp h(200 km/h) speedrang e.
The micr osleepde tection functi onisavailable at
a spee dof 12.5 mp h(2 0km/h) andabove.
Pa rticular lyin thefo llo wing situat ions,AT TEN‐
TION ASSISTonl yfunct ionsinare strict ed man‐
ner and warnings maybe dela yedor notocc ur:
R Ifyo uha ve been driving forless than appr ox‐
imat ely30 min utes.
R Ifth ero ad con dition ispoor (unevenro ad
sur face orpotholes).
R Ifth er eis ast ro ng side wind.
R Ifyo uadop ta spor tydrivin gst yle (high cor‐
ner ing speeds orhigh ratesof acceler ation).
R Ifth eSt eer ing Assis tfunc tion ofActiveDis ‐
ta nce AssistDIS TRONI Cis acti ve.
R Ifth ecloc kis setto theincor rect time .
R Ifyo uch ang elane sand vary your spee dfre‐
qu ent lyIn activ edr iving situation s. Dr
iving andparking 217
Page 220 of 610

Micr
osleep detection also doe sno tfuncti on
whe nth edr iver camer acann otdetect thedr iv‐
er's eyes, forex am ple asare sult ofthefo llo wing
fa ct or s:
R The driver's eyes areco vereddue tothe
st eer ing column position ,fo rex am ple.
R Poor ambient light.
R Some typesofeyeg lasses orsung lasses.
R The driver's lineofvision isoutside thedr iver
camer a'sfield ofvision.
Also obser veanyinf ormat ionrega rding displa y
mess ages that can bedispla yedon thedr iver
displa y.
The tiredness andalertness assessment of
AT TENTION ASSISTwit hmicr osleep detection is
re se tand restar tedwhen continuing thejour ney
in thefo llo wing situat ions:
R Ifyo uswit choffth eengine.
R Ifyo uunf astenyo ur seat beltandopen the
dr iver's door (e.g.tochang edr iver sor take a
br eak). Ac
tiv eDi stance AssistDI ST RO NIC Fu
nction ofActiv eDi stance Assist
DI ST RO NIC
Ac tiveDis tance AssistDIS TRONI Cma intains the
se tspeed onfree-f lowing roads. Ifve hicles in
fr ont arede tected, these tdis tance isma in‐
ta ined, ifnec essar y,unt ilth eve hicle comes toa
halt. Thevehicle acceler ates orbrak es depend‐
ing onthedis tance totheve hicle infront and
th ese tspeed. Thespeed anddistance tothe
ve hicle infront arese tand save dusing the
st eer ing wheel.
Ac tiveDis tance AssistDIS TRONI Cis available in
th e15 mp h(20 km/h) to130mp h(210 km/h)
spe edrang e.
Ot her featur esofActiveDis tance Assist
DIS TRONI C:
R Adjus tsthedr iving style depending onthe
select eddrive pr ogr am (fuel-sa ving,comfort‐
able ordynamic) (/page19 3)
R Initia tesacceler ationtothestor ed speed if
th etur nsignal indicat orisswitc hedonto
ch ang eto theov ertaking lane R
React sto statio naryve hicles detected in
urb anspe edrang es (exc ep tbicy cles and
mo torcyc les)
R Take sone-sided overtak ing restrictions into
acco untonhighwaysor on multi-lane roads
wit hseparat ero adw ays(countr y-dependen t)
Ad diti onalfunc tionav ailab lein certain coun‐
tr ies :if Ac tiveDis tance AssistDIS TRONI Cha s
br ak ed theve hicle toast ands till,it can automat ‐
icall yfo llo wtheve hicle infront when driving off
ag ain within 30seconds. Ifacr itical situation is
de tected inthesur round ingarea when drivin g
of f,suc has aper son intheve hicle path,avisual
and acous ticwarning isgiv en indic atingth at the
dr iver mus tno wtake contr olof theve hicle. The
ve hicle isno tacceler ated anyfur ther.
Ac tiveDis tance AssistDIS TRONI Cis ready to
pull away when thegr een ç vehicle symbol
fl ashes cyclic ally.
Obser vetheno teson driving systems andyour
re sponsibili ty;yo uma yot her wise failto recog‐
nize dangers(/ page 210). 21
8
Driving and parking
Page 221 of 610

Dr
iver dis pla yin theAssist ancemenu 1
Vehicle infront
2 Distance indicator
3 Setspe cified dist anc e
Ve hicle detected infront 1ishig hlight edin
gr een. Itma yal so be inthelane tothelef tof
yo ur vehicle insituations whereit is no tper mit‐
te dto overtake on theright, forex am ple onhigh ‐
wa ys.
Pe rm anen tst atus displa y
R ç (white): ActiveDis tance Assist
DIS TRONI Csel ect ed,sp eci fied distance set R
ç (gre en): ActiveDis tance Assist
DIS TRONI Cacti ve,specif ieddistance setand
ve hicle detected
The stor ed speed issho wnunder theper manen t
st atus displa yand highlight edon thespeedome‐
te r.When ActiveDis tance AssistDIS TRONI Cis
pa ssi ve,th est atus displa yis gray ed out.
If th espeed oftheve hicle infront orthespeed
adjus tmentis less than thestor ed speed dueto
th ero uteeve ntahead, thesegment sin the
speedome terlig ht up.
When these tspecif ieddistance isincr eased or
de crea sed ,th eÒ displa ybr ief lyappear s
unde rth eve hicle intheper manen tst atus dis‐
pla y.
% Onhighw aysor high-speed major roads, the
gr een ç vehicle symbol isdispla yedcy cli‐
cally when theve hicle isready topull away.
% Ifyo udepr esstheacceler ator pedal beyond
th ese tting oftheAc tiveDis tance Assist
DIS TRONI C,thesy stem isswitc hedtopas‐
siv emode. Theç Suspen dedmessag e
appear son thedr iver displa y. Sy
stem limit s
The system maybe impair edorma yno tfunc tion
in thefo llo wing situat ions,fo rex am ple:
R Insnow ,ra in, fog, hea vyspr ay,if th er eis
gl ar e, indir ect sunlight oringrea tly varying
ambien tlight .
R The windsh ieldinthear ea ofthecamer ais
dir ty,fo gg ed up, damag edorcovered.
R Ifth era dar sensor sar edir tyor covered.
R Inpar kingga rage sor on roads withsteep
uphill ordownhill gradients.
R Ifth er ear enar row vehicles infront, suchas
bicy cles ormo torcyc les.
In addition ,on slipper yro ads, brakin gor acc el‐
er atin gcan caus eon eor severalwheels tolose
tr act ion and theve hicle could then skid.
Do notuse ActiveDis tance AssistDIS TRONI Cin
th ese situation s. Dr
iving andparking 21
9
Page 222 of 610

&
WARNIN GRisk ofacci dent from acce ler‐
ati on orbraki ng byActiveDis tance
Assi stDIS TRONI C
Ac tiveDis tance AssistDIS TRONI Cma yacc el‐
er ateor brak ein thefo llo wing cases ,fo r
ex am ple:
R Ifth eve hicle pullsaway usin gAc tiveDis ‐
ta nce AssistDIS TRONI C.
R Ifth estor ed speed iscalled upand is
consider ablyfa ster or slo werth an the
cur rently driven spe ed.
R IfAc tiveDis tance AssistDIS TRONI Cno
lo ng er detects ave hicle infront ordoes
no tre act toreleva nt objects. #
Alw ayscar efully observethetraf fic con‐
di tions andbeready tobrak eat all
times. #
Take intoacc ount thetra ffic situat ion
bef orecallin gup thestor ed speed. &
WARNIN GRisk ofacci dent dueto insuf ‐
fi cie ntdece lera tio nby ActiveDis tance
Assi stDIS TRONI C
Ac tiveDis tance AssistDIS TRONI Cbrak es
yo ur vehicle withup to50% ofthepossible
deceler ation.Ifth is decele ratio nis no tsu ffi‐
cien t,Ac tiveDis tance AssistDIS TRONI C
al er ts youwit havis ual and acoustic warning. #
Adjus tyo ur spee dand main tain asuit a‐
ble distance from theve hicle infront. #
Brak eth eve hicle yourself and/or take
ev asiv eact ion. &
WARNIN GRisk ofacci dent ifde tection
functi onofActiveDis tan ceAssi st
DIS TRONI Cis impai red
Ac tiveDis tance AssistDIS TRONI Cdo es not
re act orhas alimit edreact ion:
R when drivin gon adif fere nt lane orwh en
ch ang inglane s R
topedes trians, animals, bicycles orsta‐
tio nar yve hicles, orune xpect edobs tacle s
R tocom plex traf fic condi tions
R tooncom ingvehicles andcrossing traf fic
As are sult, ActiveDis tance Assist
DIS TRONI Cma ynei ther giv ewa rnings nor
int erve ne insuch situations. #
Alw aysobser vethetra ffic con dition s
car efull yand react accordin gly. Oper
ating Activ eDi stance AssistDI ST RO NIC
Re quirement s:
R The elect ric pa rking brak eis released.
R ESP®
is act ivat ed and isno tint erve ning .
R The trans mis sion isin po sitio n005B.
R Allthedoor sar eclosed.
R Chec kof thera dar sensor system has been
success fullycompleted.
R Snow chain mode isno tact ive
(/ page36 6). 220
Drivin gand parking
Page 223 of 610

J
Adoptsthestor ed/de tected spe ed
± Deacti vatesAc tiveDis tance Assist
DIS TRONI C
1 Increases /de crea ses thespeed
K Increases/ decreases thespecif ieddis‐
tan ce
H Activates /de activatesAc tiveDis tance
Assi stDIS TRONI C #
Tooper ateAc tiv eDi stance Assist
DI ST RO NIC :press there spectiv ebutt on
wit honly onefing er or sw ipe on thecon trol
panel.
Ac tiv atin g/deac tivatin gAc tiv eDi stance
Ass istDI ST RO NIC #
Press H.
Ac tiv atin gAc tiv eDi stance AssistDI ST RO NIC #
Toactiv atewi thout ast or ed speed :on
con trol panel 1press M ontheupper
sect ionorN onthelowe rsection or
J. Remo veyour foot from theacceler ator
pedal.
or #
Toactiv atewi th ast or ed speed :pr ess
J. Remo veyour foot from theacceler ator
pedal.
The current spe edisstor ed and maint ained
by theve hicle. Incr
easing orreduci ngthe speed #
Toinc rease thestor ed speed: swipeupwards
fr om thebo ttom ofcon trol panel 1.
R The stor ed speed isincr eased by1mp h
(1 km/ h). #
Todecr ease thestor ed speed: swipedown‐
wa rdsfrom theto pof con trol panel 1.
R The stor ed speed isdecr eased by1mp h
(1 km/ h).
or #
Brief lypress M ontheupper sectionor
N onthelowe rsection ofcontr olpanel
1.
The stor ed speed isincr eased orreduced by
5 mp h(1 0 km/h) .
or #
Accel erateth eve hicle tothedesir edspeed. #
Press M ontheupper sectionofcon trol
panel 1.
Ad opting thelimi tspeed showninthedr iver
disp lay #
ActivateAc tiveDis tance AssistDIS TRONI C. Dr
iving and parking 22
1
Page 224 of 610

#
Press J.
The limit speed displayedin thedr iver displa y
is adop tedas thestor ed speed. Thevehicle
adap tsits speed tothat oftheve hicle in
fr ont, butonlyup tothestor ed speed.
Pulling away wit hAc tiv eDi stance Assist
DI ST RO NIC #
ActivateAc tiveDis tance AssistDIS TRONI C
and remo veyour foot from thebr ak epedal. #
Press J.
or #
Depr esstheacceler ator pedal brief lyand
fi rm ly.
The funct ionsofActiveDis tan ceAssi st
DIS TRONI Cconti nuetobe car ried out.
Re duci ngorinc reasin gth especif ieddis‐
tance from theve hicl ein front #
Press K.
The h display app ears.The speci fied dis‐
ta nce isreduced byone leve l.
If th elowe stleve lis alr eady selected, the
selection jumpstothehighes tle ve l. Deactiv
ating Activ eDi stance Assist
DI ST RO NIC &
WARNIN GRisk ofan acci dent dueto
Ac tiveDis tan ceAssi stDIS TRONI Cbe ing
acti vewhen youlea vethedr iver's seat
If yo ulea vethedr iver's seat while theve hicle
is being brak ed byActiveDis tance Assist
DIS TRONI Conly ,th eve hicle canrollaw ay. #
Alw aysdeactiv ateAc tiveDis tance
Assi stDIS TRONI Cand secureth eve hi‐
cle topreve ntitfrom rolling away
bef oreyo ulea vethedr iver's seat. #
Press ±.
% Ifyo ubr ak e, deac tivateES P®
or ifES P®
int erve nes, ActiveDis tance Assist
DIS TRONI Cis de acti vated.
Fu nction ofActiv eSpe edLimit Assist
If ach ang ein thespeed limitof12 mp h
(20 km/ h)or mor eis de tected and automatic
adop tionofspeed limitsisactiv ated, thene w
speed limitisaut omaticall yadop tedas the
st or ed speed (/page22 4). The
driven speed isadjus tedwhen theve hicle is
le ve lwit hth etraf fic sig nat thelat est.In the
case ofsig ns indi cati ngentr yint oan urb anarea ,
th espeed isadap tedaccor dingtothespeed
per mitt edwithin theurban area. The speed limit
displa yin thedr iver displa yis alw aysupda ted
when theve hicle isleve lwit hth etraf fic sig n.
If yo uar edr ivin gon Ger man highways and ther e
is no speed limit,thesy stem uses thespeed
st or ed fora st re tchof road withno spee dlimit
as these tspeed. Ifyo udo notalt er thestor ed
speed onast re tchof road withno spee dlimit ,
th ere comme ndedspeedof80 mph(1 30 km/h)
is adop ted.
If Ac tiveDis tance AssistDIS TRONI Cha sbe en
pu tint opa ssi ve mode bypressing theaccelera ‐
to rpeda l,onl yspee dlimi tswhi charehigh er
th an these tspeed areadop ted.
The maximum permissible speeddoesnotta ke
th ero ad con dition and current we ather and traf‐
fi c condi tions intoacco unt.Adjus tyo ur spee d
acc ordin gly, when necessar y. 222
Driving andparking