REBD (Electronic Brakeforce Distribution)
(→pag e152)
RESP®(Electronic Stability Program)
(→pag e149)
RDRIVE PIL OT(→pag e165)
RHOLD function (→pag e168)
RSteering Pilo t(→page165)
RParking Pilo t(→page179)
RPARKTRONI C(→page172)
RReversing camera (→pag e174)
RCruise control (→pag e157)
RBlind Spo tAssist andActiveB lind Spo tAssist
(→pag e188)
RTraf ficS ign Assist (→page186)
Functions of ABS (anti-loc kbraking sy stem)
AB Sr egulates theb rake pressur eincritical driv‐
ing situations:
RDuring braking, thew heels ar epreve nted
from blocking ,e.g. due tomaximu mfull-s top
braking or insuf ficient traction of thet ires.
RVehicle steerability while braking is ensured.
RABS is activ efroms peeds of appr ox.5m ph
(8 km/h).
If AB Sinter 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.
Sy stem borders
AB Sm aybe impaired or ma ynotfunction if a
malfunction has occur reda nd they ellow !
ABS warning lam plightsupc ontinuousl yinthe
instrument clus tera fter thee ngine 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
ma yincrease in an eme rgency braking situa‐
tion.
#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 onc eyou
re lease theb rake pedal. BASisd eactivated.
148
Driving and pa rking
Functions of ESP®(Electronic Stability Pro‐
gr am)
&
WARNING Risk of skidding if ESP is mal‐
functioning®
If ESP®is malfunctioning ,ESP®canno tcarry
out vehicle stabilization. In addition,o ther
driving saf etys ystems ar eswitched off.
#Driv eonc arefull y.
#Have ESP®checkedataq ualified spe‐
cialis tworks hop.
&
WARNING Risk of skidding if ESP®is
deactivated
If yo ud eactivat eESP
®,ESP®canno tcarry
out vehicle stabilization.
#ESP®shouldo nly be deacti vatedint he
fo llowing situations.
ESP®monitor sand impr oves driving stabilitya nd
traction,p articularly inthef ollowing situations:
RWhen pullin gawayonw etor slippe ryroads.
RWhen braking.
RIn stro ng sidewinds when youa redrivin g
fast erthan 50 mph(80 km/h).
ESP
®can stabilizet hevehicle byinter vening in
th ef ollowing ways:
ROne or mor ewheels ar ebrake d.
RThe engine output is adap teda ccording to
th es ituation.
ESP
®is deactivated if theE SP®OFF å warn‐
ing lam plightsupc ontinuousl yinthe instrument
clus ter:
RDriving stabilityw ill no longe rbeimprove d.
RCrosswind Assis tisnolonger active.
RThe driv ewheels could spin.
RETS/4ET Straction control is still active.
% Even when ESP
®is deactivated, youa restill
assis tedbyE SP®when braking.
ESP
®is inter vening if theE SP®÷ warning
lam pflashes in thei nstrument clus ter:
RDo no tdeacti vate ESP®.
ROnly depress thea ccelera torp edalasf ar as
is necessar y.
RAdapty our driving styletos uitthec urrent
ro ad and weather conditions.
Deactivat eESP
®inthef ollowing situations to
impr ovetraction:
RWhen using sno wchains
RIn deep snow
ROn sand or gr avel
% Spinning thew heels results in acutting
action whic hprovide sbette rg rip.
ESP
®is deactivated if theå ESP®OFFwarn‐
ing lam plightsupc ontinuousl yinthe instrument
clus ter.
If th eE SP
®÷ warning lam plightsupc ontinu‐
ousl y,ESP®is no tavailable due toam alfunction.
Observ eanyinformation whic hmaybe displa yed
in thei nstrument clus ter:
RWa rning and indicator lamps (→pag e396)
RDispla ymessages
Drivinga nd parking 14
9
ETS/4ETS(Electronic Tractio nSystem)
ETS/4ETS traction control is pa rtof ESP®.
ETS/4ET Scan impr ovethev ehicle's traction by
inter vening in thef ollowing ways:
RThe driv ewheels ar ebrake di ndividually if
th ey spin.
RMor edrive torque is transferred tothew heel
or wheels wit htraction.
Influence of driv eprograms on ESP
®
The driv eprograms enable ES P®toadap ttod if‐
fe re nt we ather and road conditionsasw ell asth
ed rive r's prefer redd riving style. Youc an
select thed rive prog rams using theD YNAMIC
SELECT switch.
15 0
Driving and pa rking
Activating/deactivatin gESP®(Electronic Sta‐
bility Prog ram)
Multimedia sy stem:,Vehicle.k Assistance.ESP
#Activate Oor deacti vate ª thef unction.
ESP
®is deactivated if theE SP®OFF å warn‐
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 closed-loop control of the
brak epressur eont herear wheels.
RImpr oveddriving stabilityw hen braking,
especiall yonb ends.
Function of Activ eB rake Assi st
ActiveB rake Assi stconsist sof:
RDis tance warning function
RAu tonomous braking sy stem
RSelectiv ebraking assis tance
RVe hicles with the DrivingA ssistance
Pa ckage: Evasi veSteering Assist
Ac tiveB rake Assi stcan hel pyou tominimize 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‐
call y. If
yo udon otreact tothev isual or acoustic warn‐
ing, autonomous brakin gcan be initiated in criti‐
cal situations.
In especiall ycritical situations ,Activ eBrake
Assi stcan initiate autonomous brakin gdirect ly.
In this case, thev isual and acoustic warning
occur ssimultaneousl ywitht he braking applica‐
tion.
If yo ua ppl ythe brak eyourself in acritical situa‐
tio nora pplythe brak eduring autonomous brak‐
ing, selectiv ebraking assis tance occu rs.T his
increases theb rake pressur euptom aximum
full-s topb raking if necessar y.
If yo ur vehicle is equipped wit hadditional pre‐
ve ntiv eoccupant pr otection measures (PRE-
SA FE), these ma ybeinitiated when thea utono‐
mous braking sy stem or thes electiv ebraking
assis tance is trig gered.
15 2
Driving and pa rking
&WARNING Risk of an accident caused by
limited de tection per form anc eofA ctive
Brak eAssist
Ac tiveB rake Assi stcanno talway sc lear ly
identify object sand comple xtraf fics itua‐
tions.
In such cases,ActiveB rake Assi stmight:
Rgiv eanu nnecessa rywa rning or brak ethe
ve hicle
Rno tg iveaw arning or no tbrake thev ehi‐
cle.
#Alw aysp aycareful attention tothet raf‐
fi cs ituation; do no trely on ActiveB rake
Assi stalone.
#Be ready tobrak eand take evasive
action if necessar y.
Alsoo bserve thes ystemb order sofA ctiveBrake
Assi st.
The individua lsubfunctions ar eavailable in
th ef ollowing speed ranges:
Distance warning function
The dis tance warning function issues awarning
at speeds:
RFr om appr oximatel y18m ph (30 km/h), if
ove rseveral seconds thed ista nce main‐
ta ined tothev ehicle tr aveling in front is
insuf ficient fort he driven speed. The dis‐ ta
nce warning lam pthen lights up in the
instrumentc luster·.
RFr om appr oximatel y4mph (7 km/h), if your
ve hicle is criticall yclose toav ehicle or
pedestrian. An intermittent warning tone
sounds and thed ista nce warning lam plights
up in thei nstrument clus ter·.
Brak eimmediatel yortakee vasiv ea ction,p rovi‐
ded it is saf etodoso.
Driving and parking 15
3
Selectivebraking assistance
Selectiv ebraking assistance ma yinter vene at speeds starting from appr oxima tely 4m ph(7 km/h )int he following situations:
Ve hicles tr aveling in
front St
ationar yvehicles Crossin gvehicles Crossin gpedestrians Stationar ypedes‐
trians
Ve hicles without Driv‐
ing Assis tance Pack‐
age up
toappr ox.1 55 mph
(250 km/h) up
toappr ox.50m ph
(80 km/h) no
reaction uptoappr ox.37m ph
(60 km/h) no
reaction
Ve hicles wit hDriving
Assis tance Package up
toappr ox.1 55 mph
(250 km/h) up
toappr ox.62m ph
(100 km/h) up
toappr ox.43m ph
(70 km/h) up
toappr ox.43m ph
(70 km/h) up
toappr ox.43m ph
(70 km/h)
Canceling abrake 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 stcancels thei nter vention
when at leas tone of thef ollowing condition sis
fulfilled:
RYo um aneuver toavo idtheo bstacle.
RThe reis no longer arisk of collision.
RAn obs tacle is no longer de tected in front of
yo ur vehicle.
Evasiv eSteering Assist
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) up toas peedofa pprox‐
imatel y43m ph (70 km/h).
RYouc an preve ntthea ssis tance at an ytime
by activ esteering.
Driving and parking 15
5
&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
avo idac ollision.
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 ystemb order sofE vasive
St eering Assist.
Sy stem borders
Ac tiveB rake Assi stma ybei mpaire dorm aynot
function in thef ollowing situations:
RIn sno w,rain, fog, heavy spr ay,ift hereis
gl are, in direct sunlight or in greatly varying
ambientl ight.
RIfth es ensor saredirty ,fogged up, damaged
or co vered.
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 tations wher eobjects
canno talway sbec 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.
RIn ne wvehicles or af teras ervice has been
car ried out on ActiveB rake Assi st.
ROn bends wit hatightradius.
Setting Activ eB rake Assi st
Multimedia sy stem:,Vehicle.k Assistance.Active
BrakeA ssist
Ve hicles without DrivingA ssistancePack‐
age: The settings can be made af ters tartin gt he
ve hicle.
Ve hicles with Drivin gAssistanc ePacka ge:
The settings can be made whe nthe ignition is
switched on.
15 6
Driving and pa rking
%It is recommended that youa lway sl ea ve
Ac tiveB rake Assi stswitched on.
The moment of warning or inter ventio ncan be
adjus tedasf ollows:
#Select Active Brake Assist Warning/Brake
Application: Early:y our selection isretained
when thev ehicle is next star ted.
#Select Active BrakeA ssist Warning/Brake
Application: Medium :your selection is
re tained when thev ehicle is next star ted.
#Select Active BrakeA ssist Warning/Brake
Application: Late:y our selection isretained
when thev ehicle is next star ted.
#Select Active BrakeA ssist Warning/Brake
Application: Off:
Ve hicles without Drivin gAssistanc ePack‐
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 DrivingA ssistancePack‐
age: The dis tance warning function and the
autonomous brakin gfunction ar edeactiva‐
ted. 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.
Yo uc an operat ecruise cont rolw itht he cruise
control le ver.
If yo uf ail toadap tyour driving style, cruise con‐
trol can neither reduce ther isk of an accident
nor override thel aws of ph ysics. It canno ttake int
oa ccount road, weather or traf ficc onditions.
Cruise control is only an aid. Youa re re sponsible
fo rt he dis tance tothev ehicle in front, forv ehi‐
cle speed, forb raking in good time and fors tay‐
ing in your lane.
Sy stem limitations
Cruise control ma ybeunable tomaintain the
st ored speed on uphill gradients. The stored
speed is resumed when theg radient evens out.
Do no tuse cruise control in thef ollowing situa‐
tions:
RIn traf fics ituations whi chrequ iref requ ent
ch anges of speed, e.g .inheavy traf fic, on
winding roads.
ROn slippery roads. Accelerating can cause
th ed rive wheels tolose traction and the
ve hicle could then skid.
RWhen visibility is poor.
Driving and parking 15
7