occupants. These measures cannotnecessarily
pr eve nt an imminent impact.
PRE-SAFE
®PLUS can implement thef ollowing
measures independentl yofeacho ther:
RTightening thes eat belts on thed rive r's seat
and front passenger seat.
RIncre asingb rake pressur ewhen thev ehicle
is stationar y.This brak eapplication is can‐
celed automaticall ywhen thev ehicle pulls
aw ay.
If an accident did no toccur ,the pre-em ptive
measures that we retake na re re versed.
Sy stem limitations
The sy stem will no tinitiat eanyaction in thef ol‐
lowing situations:
Rwhen reve rsing
The sy stem will no tinitiat eanybraking applica‐
tion in thef ollowing situations:
Rwhils tdriving
or
Rwhen entering or exitin gap arkin gspace
while using ActiveP arking Assist
Information on PRE- SAFE®Impulse Side
If an imminent side impact is de tected, PRE-
SA FE®Impulse Side can pre-emptively mo vethe
front-seat vehicle occupant's upper body
to wa rdst he center of thev ehicle. It does this by
ra pidl yinflating an air cushion in theo uter seat
side bols teroft he seat backres tonthe side on
whic hthe impact is anticipated. This increases
th ed ista nce betwee nthe door and thev ehicle
occupant.
If PRE-SAFE
®Impulse Side has been deplo yedo r
is defective, the 3 5 ( 6 $ ) ( , P S X O V H 6 L G H , Q R S H U D
W L Y H 6 H H 2 S H U D W R U
V 0 D Q X D O displaymessag eis
shown (
→pag e397).
Children in thev ehicle
Note sont he saf etransportation of children
&
WARNING Risk of accident and injury
due tochildren lef tunat tende dint he
ve hicle
If yo ul eave children unaccompanied in the
ve hicle, they ma ybea bletos etthev ehicle in
motion, fore xamp leby:
RRe leasing thep arking brake.
RShifting thet ransmission out of park
position j.
RStartin gthe engine.
In addition, they ma yoperat evehicle equip‐
ment.
#Ne verlea ve children and animals unat‐
te nde dint hevehicle.
#When leaving thev ehicle, alw ayst ake
th eS martK eywit hyou and loc kthe
ve hicle.
46
Occupant saf ety
Electric parking brake
Electric parking brak efunction (app lying
automatically)
& WARNING Risk of accident and injury
due tochildren lef tunat tende dint he
ve hicle
If yo ul eave children unaccompanied in the
ve hicle, they ma ybea bletos etthev ehicle in
motion, fore xamp leby:
RRe leasing thep arking brake.
RShifting thet ransmission out of park
position j.
RStartin gthe engine.
In addition, they ma yoperat evehicle equip‐
ment.
#Ne verlea ve children and animals unat‐
te nde dint hevehicle.
#When leaving thev ehicle, alw ayst ake
th eS martK eywit hyou and loc kthe
ve hicle.
The electric parking brak eisapplied if thet rans‐
mission is in position jand one of thef ollow‐
ing condition sisfulfilled:
RThe engin eisswitched off.
RThe seat belt tongueisn otinser tedint he
seat belt buckle of thed rive r's seat and the
driver's door is opened.
% Toprev ent application: pull theh andle of the
electric parking brake.
In thef ollowing situations, thee lectric parking
brak eisa lso engaged:
RActiveD ista nce Assist DISTRONICisb ringing
th ev ehicle toas tandstill.
RThe HOL Dfunction is keeping thev ehicle sta‐
tionar y.
RActiveP arking Assis tiskeeping thev ehicle
st ationar y.
This is onl ythe case if one of thef ollowing con‐
ditions is also fulfilled:
RThe engine is switched off.
RThe seat belt tongueisn otinser tedint he
seat belt buckle of thed rive r's seat and the
driver's door is opened.
RTher eisas ystem malfunction.
RThe po wersupply is insuf ficient.
RThe vehicle is stationar yfor alengt hyperiod.
When thee lectric parking brak eisapplied, the
F (USA) or !(Canada) indicator lamp
lights up in thei nstrument clus ter.
The electric parking brak eisnotautomatically
applied if thee ngine is switched of fbythe ECO
st art/ stop function.
Electric parking brak efunction (releasing
automatically)
The electric parking brak eisreleased when the
fo llowing condition sarefulfilled:
RThe engin eisrunning.
RThes eatb eltt ongue is inser tedi nt othe seat
belt buckle of thed rive r's seat.
RThe transmission is in position hork and
yo ud epress thea ccelera torp edalory ou
Drivinga nd pa rking 15
5
Function of ther adar senso rs
Some driving and driving safe ty systems use
ra dar sensor stomonitor thea reainf ront of,
behind or next tothev ehicle (depending on the
ve hicle's equipment).
Depending on thev ehicle's equipment, ther adar
sensors arei ntegrated behind theb umpers
and/or behind ther adiator grille. Keep these
parts free of dirt, ice and slush (
→pag e329).
The sensor smustn otbe co vered, fore xamp le
by bicycle rack s, ove rhanging loads or radar-
re flecting sticke rs.F ollowing an impact and in
th ee vent of associated damage ,whic hm aynot
be visible, totheb umper sorradiator grille, ha ve
th ef unction of ther adar sensors checkedata
qu alified specialis tworks hop. The driver assis‐
ta nce sy stem ma ynolonger workproperly.
Overvie wofdriving sy stems and driving
saf etys ystems
In this section, youw illfind informatio nabout
th ef ollowing driving sy stems and driving saf ety
sy stems:
R360° Camer a(→page185)
RABS ( Anti-lo ckBra king Sys tem)
(→pag e158)
RActiveD ista nce Assist DISTRONIC
(→pa ge 166)
RAIR BODY CONTROL (→pag e176)
RAc tiveB rake Assi st(→pag e160)
RActiveL aneK eeping Assis t(→page199)
RATTENTION ASSIS T(→page193)
RBAS(Brak eAssist System) (→pag e159)
REBD ( Electronic Brakeforc eDistribution)
(→pag e159)
RESP®(Electronic Stability Pro gram)
RHill StartA ssist
RHOL Dfunction (→pag e175)
RSTEER CONTROL (→page 160)
RAc tiveS teering Assis t(→page172)
RActiveP arking Assis t(→page188)
RParking Assis tPARKTRONIC (→page 179)
RRe ar vie wcamer a(→page183)
RCruise control (→pag e164)
RBlind Spo tAssis tand ActiveB lind Spo tAssist
(→pag e197)
RTraf ficS ign Assist (→page195)
Functions of ABS (Anti-loc kBrake System)
AB Sr egulates theb rake pressur eincritical driv‐
ing situations:
RDuring braking, e.g. at maximum full-s top
braking or insuf ficient traction of thet ires,
th ew heels ar epreve nted from blocking.
RVe hicle steerability while braking is ensured.
If ABS inter venes when braking, youw illfeel a
pulsing in theb rake pedal. The pulsating brake
pedal can be an indication of hazardous road
conditionsa nd can serveas areminder totake
ex trac arew hile driving.
158
Driving and pa rking
System limitationsRAB Sisa ctivefroms peeds of appr ox.5m ph
(8 km/h).
RAB Sm aybe impaired or ma ynotfunction if a
malfunction has occur reda nd they el‐
low ! ABSwarning lam plightsupc ontin‐
uousl yinthe instrument clus tera fter the
engine is star ted.
Fu nction of BAS(Brak eAssis tSystem)
&
WARNING Risk of an accident caused by
am alfunctio ninBAS (Brak eAssist Sys‐
te m)
If BA Sism alfunctioning ,the braking dis tance
in an eme rgency braking situation is
increased.
#Depress theb rake pedal wit hfull forc e
in emer gency braking situations. ABS
pr eve nts thew heels from locking.
BASs uppo rtsy our emer gency braking situation
wit ha dditional brak eforce. If
yo ud epress theb rake pedal quickl y,BA Sis
acti vated:
RBA Sa utomatically boosts theb rake pres‐
sure.
RBA Sc an short entheb raking dis tance.
RABS pr events thew heels from locking.
The brakes will function as usual oncey ou
re lease theb rake pedal. BASisd eactivated.
Activating/deactivatin gESP®(Electronic Sta‐
bility Prog ram)
Multimedia sy stem:
, 9 H K L F O H.k $ V V L V W D Q F H. ( 6 3
Mercedes‑AMG vehicles: observethe no tesi n
th eS upplement .Otherwise, youm aynotrecog‐
niz ed angers.
#Ac tivate Oor deacti vate ª thef unction.
ESP
®is deactivated if theå ESP®OFFwarn‐
ing lam plightsupc ontinuousl yinthe instrument
clus ter. Obser
vethei nformation on warning lamps and
displa ymessages whic hmaybe shown in the
instrumentc luster.
Fu nctions of ESP®Crosswind Assist
ESP®Crosswind Assis tdetects sudden gusts of
side wind and helps thed rive rtok eepthev ehi‐
cle in thel ane:
RESP®Crosswind Assis tisactiveatv ehicle
speeds between 50 mph(80 km/h) and
12 5m ph (200 km/h) when driving stra ight
ahead or cornering slightly.
RThe vehicle is stabilized bymeans of individ‐
ua lb rake application on one side.
Function of EBD (Electronic Brak eforce Dis‐
tribution)
EB Disc haracterized bythef ollowing:
RMonitoring and regulating theb rake pressure
on ther ear wheel s.
RImproveddriving stabilityw hen braking,
especiall yonb ends.
Drivin gand parking 15
9
STEER CONT ROLfunction
STEER CONTROL help syou bytransmitting a
noticeable steering forc etot hesteering wheel in
th ed irection requ ired forv ehicle stabilization.
This steering recommendation is given part icu‐
larly in thef ollowing situations:
RBo th right wheels or bo thleftw heels ar eon
aw etor slippe ryroad sur face whe nyou
brake.
RThe vehicle starts toskid.
Sy stem limitations
ST EER CONTROL ma ybeimpaire dormaynot
function in thef ollowing situations:
RESP®is deactivated.
RESP®is malfunctioning.
RThe steering is malfunctioning.
If ESP
®is malfunctioning, youw ill be assisted
fur ther by thee lectric po wersteering.
Fu nction of Activ eB rake Assi st
ActiveB rake Assi stconsist sof:
RDis tance warning function
RAu tonomous braking function
RSituation-dependent braking assist ance
RVehicles with DrivingA ssistancePack‐
age: Evasi veSteering Assist
Ac tiveB rake Assi stcan helpy outominimize the
ri sk of acollision wit hvehicles or pedestrians or
to reduce thee ffects of suc hacollision.
If Ac tiveB rake Assi sthas de tected arisk of colli‐
sion,y ou will be warned visually and acousti‐
cally.
If yo udon otreact tothev isual and audible colli‐
sion warning, autonomous brakin gcan be initi‐
ated in critical situations.
In especially critical situations ,Activ eBrake
Assi stcan initiate autonomous brakin gdirect ly.
In this case, thev isual and acoustic warning
occur ssimultaneouslyw itht he braking applica‐
tion. If
yo ua ppl ythe brak eyourself in acritical situa‐
tio nora pplythe brak eduring autonomous brak‐
ing, situation-dependen tbraking assis tance
occurs .Thisi ncreases theb rake pressur eupto
maximu mfull-s topb raking if necessar y.
If th ea utonomous braking function or thes itua‐
tion-dependen tbraking assis tance is trig gered,
additional pr eventiv emeasures foro ccupant
pr otection (PRE-SAFE
®)m ayalso be initiated, if
th ev ehicle is equipped wit hthese.
&
WARNING Risk of an accident caused by
limited de tection per form anc eofA ctive
Brak eAssist
Ac tiveB rake Assi stcanno talway sc learly
identify objects and complex traffics itua‐
tions.
In such cases,ActiveB rake Assi stmight:
RGiv eaw arning or brak ewithout reason
RNo tgiveaw arning or no tbrake
#Alw aysp aycareful attention tothet raf‐
fi cs ituation; do no trely on ActiveB rake
Assi stalone. ActiveB rake Assi stis only
16 0
Driving and pa rking
Cancelingabrake application of Activ eB rake
Assi st
Yo uc an cancel abrake applic ationofA ctive
Brak eAssistat an ytimeb y:
RDepressing thea ccelera torp edalf ully.
RReleasing theb rake pedal.
Ac tiveB rake Assi stma ycancel theb rake appli‐
cation when one of thef ollowing condition sis
fulfilled:
RYo um aneuver to avoidtheo bstacle.
RThere is no longer arisk of collision.
RAn obs tacle is no longer de tected in front of
yo ur vehicle.
Evasiv eSteering Assis t(onl yvehicles with
Driving Assistan cepac kage )
Evasiv eSteering Assis thas thef ollowing charac‐
te rist ics:
RCan de tect stationar yorcrossing pedes‐
trians.
RCan assis tthe driver wit hadditional steering
assis tance if it de tects aswerving maneuver.
RCa nbea ctivatedbyana bruptsteering mo ve‐
ment during aswerving maneu ver.
RCan assis tduring swervin gand stra ightening
of thev ehicle.
RCan react from aspeedofa pproximately
12 mp h(20 km/h )uptoaspeedofa pprox‐
imatel y43m ph (70 km/h).
RYouc an pr eventthea ssis tance at an ytime
by activel ysteering.
&
WARNING Risk of an accident despite
Evasiv eSteering Assist
Evasiv eSteering Assis tcannot alwaysc learly
identify objects and comple xtraffic situa‐
tions.
In addition,t hesteering suppor tofEvasive
St eering Assis tisgenerallyn otsuff icien tto
av oid acollision.
In suc hcases Evasiv eSteering Assis tcan:
Rgiv eanu nnecessar ywarning or pr ovide
assis tance
Rno tg iveaw arning or no tprovide assis‐
ta nce
#Alw aysp aycareful attention tothet raf‐
fi cs ituation; do no trely on Evasive
St eering Assis talone.
#Be ready tobrak eand take evasive
action if necessar y.
#Preve ntthea ssis tance byactivel ysteer‐
ing in non-critical driving situations.
#Driv eatana ppropriat espeed if pedes‐
trians ar eclose tothep athofy ourvehi‐
cle.
Also obser vethes ysteml imitations of Evasive
St eering Assist.
Sy stem limitations
The sy stem ma ybeimpaired or ma ynotfunction
in thef ollowing situations:
RIn sno w,rain, fog, heavy spr ay,ift hereis
gl are, in direct sunlight or in greatlyvarying
light conditions.
RIf th es ensor saredirty ,miste du p, damaged
or co vered.
Driving and parking 16
3
RIfth es ensor smalfunction due to otherradar
source inter fere nce, fore xamp lestro ngradar
re flections in parking garage s.
RIfal oss of tir epressur eorad efectivetire
has been de tected and displ ayed.
The sy stem ma ynotreact cor rectly:
RIn complex traffics ituations whe reobjects
cannot alwaysbec learly identified.
RTopedestrians or vehicles if they mo ve
qu ickl yintot he sensor de tection range.
RTo pedestrians who ar ehidden by other
objects.
RIf th et ypical outline of apedestrian cannot
be distinguished from theb ackg round.
RIfap edestrian isno trecognized as such, e.g.
due tospecial clo thing or other objects.
ROn bends wit hatightradius.
Setting Activ eB rake Assi st
Multimedia sy stem:
, 9 H K L F O H.k $ V V L V W D Q F H. $ F W L Y H
% U D N H $ V V L V W
Ve hicles without DrivingA ssistancepack‐
age: The settings can be made af ters tartin gt he
ve hicle.
Ve hicles with DrivingA ssistancepacka ge:
The setting scan be made when thei gnition is
switched on.
% It is recommended that youa lway sl ea ve
Ac tiveB rake Assi stactivated.
Select oneoft hefollowing settings:
# ( D U O \ :your selection is retained when the
ve hicle is next star ted.
# 0 H G L X P :your selection is retained when the
ve hicle is next star ted.
# / D W H:y our selection is retained when the
ve hicle is next star ted.
# 2 I I:
Ve hicles without DrivingA ssistancepack‐
age: The dis tance warning function and the
autonomous brakin gfunction ar edeactiva‐
te d. When thev ehicle is next star ted, the
middles etting is auto matically selected.
Ve hicles with Drivin gAssistanc epack‐
age: The dis tance warning function and the
autonomous brakin gfunction ar edeactiva‐
te d. Evasiv eSteering Assis tisunavailable.
When thei gnition is next star ted, them iddle
setting is selected automaticall yand Evasive
St eering Assis tisavailable.
% When ActiveB rake Assi stis deactivated, the
æ symbol appears inthea ssis tance
graphicint he multifunction displa y.
Speed control cruise control
Function of cruise control
Cruise cont rola ccelerates and brakes thev ehi‐
cle automaticall yinorder tomaintain aprevi‐
ously stored speed.
If yo ua ccelerat etoovertake, fore xamp le,the
st ored speed is no tdele ted. If your emo veyour
fo ot from thea ccelerator pedal af tero vertaking,
cruise control will resume speed regulation back
to thes tore ds peed.
164
Driving and pa rking
Inthese conditions ,Activ eDista nce Assist
DISTRONICm ay:
RGive an unnecessar ywarning and then
brak ethe vehicle.
RNeither giv eawarning nor inter vene.
RAc celerat eorbrake unexpectedly.
#Continue driving wi thcar eand be ready
to brake, particular lyifAc tiveD ista nce
Assist DISTRONICw arnsyou.
&
WARNING Risk of accident from acceler‐
ation or braking byActiveD ista nce
Assist DISTRONIC
Ac tiveD ista nce Assist DISTRONICm ayaccel‐
erat eorb rake inthef ollowing cases, for
ex ample:
RIfth ev ehicle pulls away usingA ctiveDis‐
ta nce Assist DISTRONIC.
RIfth es tore ds peed is called up and is
considerabl yfasterors lowe rthan the
cur rently driven speed.
RIfAc tiveD ista nce Assist DISTRONICn o
longer de tects avehicle in front or does
no treact toreleva nt objects.
#Alw aysc arefully obser vethet raffic con‐
ditionsa nd beready tobrak eata ll
times.
#Ta ke intoa ccount thet raffic situation
befor ecallin gupt hestored speed.
&
WARNING Risk of accident duetoi nsuf‐
fi cient decele ratio nbyA ctiveDista nce
Assist DISTRONIC
Ac tiveD ista nce Assist DISTRONICb rake s
yo ur vehicle wit hupto50%oft he maximum
possible deceleration. If this decele ratio nis
no ts ufficient, ActiveD ista nce Assist
DISTRONICa lertsy ou wit havisual and
acoustic warning.
#In these cases, adjus tyour speed and
ke ep asufficient dist ance.
#Brakethe vehicle yourself and/or take
ev asiv eaction.
&
WARNING Risk of accident duetoA ctive
Dis tance Assist DISTRONICs tillb eing
activated when youl eave thed rive r's
seat
If yo ul eave thed rive r's seat while thev ehicle
is being braked byActiveD ista nce Assist
DISTRONICo nly,the vehicle can rollaw ay.
#Alw aysd eactivat eActiv eDista nce
Assist DISTRONICa nd securethe vehi‐
cle topreve nt it from rolling away
befor eyou lea vethed rive r's seat.
Re quirementsRThe vehicle's engine mus tbeswitched on.
RThe electric parking brak emustber eleased.
RActiveP arking Assis tisnotbeing used to
par kthe vehicle or toexit from aparking
space.
RESP®mus tbea ctivated, but no tinter vening.
RThe transmission must be in positionh.
RThe driver door ,fro nt passenger door and the
re ar door smustbec losed.
RThe engine hood mus tbeclosed.
170
Driving and pa rking