
Problem
Possible
causes/co nsequences and0050 0050
Solutions The
PASS ENGER AIR
BAG OFFindicator lamp
lights upand remains
lit, even though the
front -passenger seatis
occupied byan adult or
ap erson ofas tature
correspondin gtot hat of
an adult. The
classification ofthe person onthe front -passenger seatisincor-
rect.
X Make surethecondition sfor ac orrect classification ofthe per-
son onthe front -passenger seataremet (Ypage 46).
X Ifthe PASS ENGER AIRBAG OFFindicator lampremains lit,the
front -passenger seatmaynotbeused.
X Have OCScheck edassoon aspossible atan authorized
Mercedes-Ben zCenter. The
PASS ENGER AIR
BAG OFFindicator lamp
does notlight up
and/or doesnotstay
on.
The front -passenger
seat is:
R unoccupied
R occupied bythe
weight ofac hild up
to twelve monthsold
in ac hild restraint
system OCS
ismalfunctionin g.
X Make surethere isnothin gbetween theseat cushion andthe
child seat.
X Make surethattheentire baseofthe child restraint systemrests
on the seat cushion ofthe front -passenger seat.Thebackrest of
the forward-facing childrestraint systemmustlieasflat aspossi-
ble against thebackrest ofthe front passenger seat.Ifnecessary,
adjust theposition ofthe front -passenger seat.
X When installing thechild restraint system,makesurethatthe
seat beltistight. Donot pull theseat belttight using thefront -
passenger seatadjustment .This could result inthe seat beltand
the child restraint systembeingpulled tootightly.
X Check forcorrect installation ofthe child restraint system.
Make surethatthehead restraint doesnotapply aload tothe
child restraint system.Ifnecessary, adjustthehead restraint
accordingly.
X Make surethatnoobject sareapply ingadditional weightontothe
seat.
X Ifthe PASS ENGER AIRBAG OFFindicator lampremains off
and/or thePASS ENGER AIRBAG ONindicator lamplights up,do
not install achild restraint systemonthe front -passenger seat.
X Have OCScheck edassoon aspossible atan authorized
Mercedes-Ben zCenter. Deployment
ofEmergency Tension-
ing Devic esand airbags
Import antsafety notes G
WARNING
The airbag parts arehot after anair bag has
been deploye d.There isar isk ofinjury.
Do not touch theairbag parts. Havea
deploye dairbag replaced ataq uali fied spe-
cialist workshop assoon aspossible. G
WARNING
Ad eploye dairbag nolonger offersanypro-
tect ionand cannot provide theinten dedpro-
tect ioninan accident. Thereisan increased
risk ofinjury.
Have thevehicle towedtoaq uali fied spe-
cialist workshop inorder tohave adeploye d
air bag replaced.
For your ownsafety andthat ofyour front
passenger, itis important thatyouhave
deploye dairbags replaced anddefective air
bags repaired. Thiswillhelp tomake surethe
air bags continue toperform theirprotect ive 50
Occ
upantsafetySafety

function
forthe vehicl eoccupa ntsinthe event
of ac rash. G
WARNING
Emergency TensioningDevices thathave
depl oyedpyro technical lyare nolonge r
opera tional andareunab leto perform their
intended protective function.Thispose san
increas edrisk ofinjury oreven fatalinjury .
Have pyrotechnical lytrigger edEmergency
Tensio ningDevices replaced immed iatelyat
aq ualified speci alist worksho p.
An electric motor isuse dbyPRE-SAFE ®
to
trigger thetightening ofthe seatbelti nh az-
ardo ussitua tions. Thisproced ureisreversi ble.
If Emergency TensioningDevices aretrigger ed
or air bag saredepl oyed,you willhearab ang,
and some powdermay alsob erele ase d.The
0075 restrai ntsystem warning lamplights up.
Only inrare cases willthe bang affect your
hea ring. Thepowderthat isrele asedgenera lly
does notconstitute ahealth haza rd,but itmay
caus eshort-term breathing difficulti esinpeo-
ple with asthma orother respiratory problems.
Provid editis safe todo so, you shou ldlea ve
the vehicl eimmed iatelyor open thewind owin
order toprevent breathing difficulti es.
Air bag sand pyro technic Emergency Tension-
ing Devices (ETDs)contain perchloratemate-
rial ,which may requirespeci alhandl ingand
rega rdfor the environment. Nationalguide-
lines must beobse rved duringdisp osal.InC al-
ifornia ,see ww w.dtsc.c a.gov/
HazardousWaste/ Perchlorate/i ndex.cfm.
Method ofoperatio n During
thefirst stage ofac ollision, the
restrai ntsystem controlunitevaluates impo r-
tant physical datarelating tovehicl edecel era-
tion oraccele ration, suchas:
R dura tion
R dire ction
R intensity
Based onthe eval uation ofthis data ,the
restrai ntsystem controlunittrigger sthe Emer-
gency TensioningDevices duringahead-on or
rear-end collision. An
Emergency TensioningDevice canonly be
trigger ed,if:
R the igniti onisswi tched on
R the components ofthe restrai ntsystem are
opera tional.You can find further informa tion
under "Restrai ntsystem warning lamp"
(Y pag e39)
R the seatbeltb uckle tongue hasengag edin
the beltbuckle ofthe respe ctiveseat
If the restrai ntsyste mcontrol unitdetects a
more severe accident,further components of
the restrai ntsyste mareactiva tedindep end-
ently ofeach other incertain frontalcollision
situa tions:
R Front airbag sasw ella sd rive r'sand front-
pas senger kneebags
Dependi ngon the perso nint he front-
pas senger seat,the front-passe ngerfront air
bag iseither enabledordisa bled.The front-
pas senger frontairbag canbedepl oyedina n
accid entonly ifthe PASSENGER AIRBAG OFF
indica torlam piso ff.Obser vethe informa tion
on the PASSENGER AIRBAG indica torlam ps
(Y pag e39).
You rvehicl ehastwo-stage frontairbag s.
The activa tionthreshol dofthe Emergency
Tensio ningDevices andtheairbag sisd eter-
mined byeval uating therate ofvehicl edecel -
erati onoraccele rationwhichoccurs atvari ous
poi nts inthe vehicl e.This process ispre-emp -
tive innature. Deployment shouldtake place
in good timeatthe start ofthe colli sion.
The rate ofvehicl edecel erati onoraccele ra-
tion andthedirection ofthe force areessen-
tial lydetermi nedby:
R the distri butionofforces duringthe colli sion
R the colli sion angle
R the deforma tionchara cteristics ofthe vehi-
cle
R the chara cteristics ofthe object withwhich
the vehicl ehascolli ded
Factors whichcan only beseen andmeas ured
after acollision hasoccurred donot playa
decis iverole inthe depl oyme ntofan air bag .
Nor dothey provi deanindica tionofair bag
depl oyme nt.
The vehicl ecan be deforme dconside rably,
witho utan air bag being depl oyed.This isthe
case ifonly parts whichare relatively easily
deforme dareaffected andtherate ofdecel er-
ation isnot high .Convers ely,airbag smaybe
depl oyedeven though thevehicl esuffe rsonly Oc
cupant safety
51Safety Z

minor
deforma tion.Thisisthe case if,for
exampl e,very rigid vehicl eparts such aslongi-
tudina lbody members arehit,and suffici ent
decel eratio noccurs asaresul t.
If the restraint systemcontrolunitdetects a
side impa ctor ifthe vehicl erolls over, the
app licable components ofthe restraint system
are depl oyedindepe ndently ofeach other
depe nding onthe apparent typeofaccide nt.
R Side impactair bag onthe side ofimpa ct,
indepe ndently ofthe Emergency Tensioning
Device andtheuse ofthe seat beltonthe
driver' sseat
The side impa ctair bag onthe front
pass enger sidedeploysunder thefollo wing
conditions:
- the OCS system detects thatthefront
pass enger seatisoccupi edor
- the seat beltbuckle tongue isengage din
the belt buckle ofthe front passenger
seat
R Head bagonthe side ofimpa ct,indepe nd-
ently ofthe use ofthe seat beltandinde-
pendently ofwhether thefront-passenger
seat isoccupi ed
R Emergency TensioningDevices, ifthe sys-
tem determines thatdeployme ntcan offer
add itional protection inthis situa tion
R Head bagsonthe driver' sand front-
pass enger sideincertain situations when
the vehicl erolls over, ifthe system deter-
mines thatdeployme ntcan offer additional
protection tothat provid edbythe seat belt
i Not
allair bags aredepl oyedina na cci-
dent. Thevario usair bags work indepe nd-
ently ofeach other .
How theairbag works isdetermined bythe
severi tyof the accide ntdetected, especially
the vehicl edecel eratio noraccele ration and
the apparent typeofaccide nt:
R Head-on collision
R Side impact
R Rol lover NECK
-PROhead restraints
Important safetynotes G
WARNING
The function ofthe head restraint maybe
impa iredifyou :
R attach objects suchascoat hangers to
the head restraints, forexampl e
R use head restraint covers
If you doso, the head restraints cannotfulfill
their intended protective functioninthe
event ofan accide nt.Inadd ition, objects
attached tothe head restraints couldendan-
ger other vehicleoccupa nts.There isan
increase drisk ofinjury.
Do not attach anyobjects tothe head
restraints anddonot use head restraint cov-
ers.
Method ofoperation NECK-PRO
headrestraints reducethe likel i-
hood ofhead andchest injurie s.The NECK-
PRO head restraints onthe driver' sand front-
pass enger seatsaremoved forwardsand
upw ards inthe event ofar ear-end collision of
ac ertain severity.This provid esbetter head
supp ort.
If the NECK-PRO headrestraints havebeen
triggere dina na ccide nt,you must reset the
NECK-PRO headrestraints onthe driver’ sand
front-passenger seat(Ypage 53).Other-
wise ,the add itional protection willnot be
avai lablein the event ofanother rear-end colli-
sion. Youcanrecognize whenNECK-PRO head
restraints havebeen triggered bythe fact that
they have moved forwardsand cannolonger
be adju sted.
Mercede s-Benzrecommends thatyouhave
the NECK-PRO headrestraints checkedfor
functionali tyat aq ualified specia listworkshop
after arear-end collision. 52
Occ
upant safetySafety

G
WARNING
If child renareleft unsu pervi sedinthe vehi-
cle, they could,inparticu lar:
R Open doors, thereby endange ringother
perso nsorroad users
R Get outand bestruck byoncoming traffic
R Opera tevehicl eequipme ntand become
trappe d,for exampl e
In add ition, childrencoul dsetthe vehicl ein
motion, forexampl e,ifthey:
R Rel ease theparki ngbrake.
R Cha nge thetransmissi onposi tion
R Start thevehicl e
There isar isk ofaccide ntand injury .
Never leavechild renunsu pervi sedinthe
vehicl e.
When leaving thevehicl e,alw ayst ake the
SmartKey withyouand lock thevehicl e.
Keep theSmartKey outofthe reach ofchil-
dren. G
WARNING
If perso ns,particu larlychild ren aresubjec-
ted toprolo nged exposu reto extreme heat
or cold, there isar isk ofinjury ,possi bly
even fatal.Never leavechild renunattended
in the vehicl e. G
WARNING
If the child restrai ntsystem issub jected to
dire ctsunli ght,parts maygetvery hot.Chil-
dren mayburn themsel vesonthese parts,
particu larlyonthe metal partsofthe child
restrai ntsystem. Thereisar isk ofinjury .
If you leavethe vehicl e,taking thechild with
you ,alway se nsure thatthechild restrai nt
system isnot expose dtod irectsunli ght.
Protect itwith ablanket, forexampl e.Ifthe
child restrai ntsystem hasbeen expose dto
dire ctsunli ght,letitcool downbefore secur-
ing the child init. Never leavechild renunat-
tended inthe vehicl e.
Alwa ysensure thatallvehicl eoccupa ntshave
their seatbeltsfastened correctly andaresit- ting
prope rly.P articu larattention mustbepaid
to child ren.
Observe thesafety notesonthe seat belt
(Y pag e40)and thenotes oncorrect useof
seat belts(Y pag e41).
Ab ooster seatmaybenecessa ryto achie ve
prope rseat beltposi tioning forchild renover
40 lbs (18 kg)until theyreach aheightwhere
at hree-poi ntseat beltcan be prope rlyfas-
tened withoutab ooster seat. Spec
ialseatbe ltretractor G
WARNING
If the seat beltisr ele ased whiledrivi ng,the
child restrai ntsystem willnol onger be
secure dprope rly.The speci alseat belt
retractor isdisa bleda nd the inertia real
draw sinap ortion ofthe seat belt.The seat
bel tcannot beimmed iatelyrefastene d.
There isan increas edrisk ofinjury ,possi bly
even fatal.
Stop thevehicl eimmed iately,pay ing atten-
tion toroad andtraffic conditions. Reacti-
vate thespeci alseat beltretractor and
secure thechild restrai ntsystem properly.
The seat beltonthe front-passenge r'sside is
equ ipped with aspeci alseat beltretractor.
When activated,thespeci alseat beltretractor
ensure sthat the seat beltcannot slacken once
the child seatissecure d.
Install ingachild restrai ntsystem:
X Make sureyouobser vethe child restrai nt
system manufacturer's installationinstruc-
tions.
X Pul lthe seat beltsmoothly outofthe belt
loop .
X Engage seatbelttongue inbel tbuckle .
Activating thespeci alseat beltretractor:
X Pul lthe seat beltoutfull yand let the inertia
reel retract itaga in.
Whil ethe seat beltisr etracting, youshou ld
hear aratcheting sound.The speci alseat
bel tretractor isenabl ed.
X Push thechild restrai ntsystem downsothat
the seat beltist ight anddoes notloos en. 54
Chi
ldren inthe vehi cleSafety

Remo
vingthe child res train tsyst em and deac -
ti vat ing thes pec ialseat beltretrac tor:
X Mak esurey ou obs ervethe child res train t
syst emman ufacturer'sins tal lation instruc-
ti on s.
X Pre ssther elease buttono fthe seat belt
buc kle,hold theb elt tong ue and guide it
bac ktow ards theb elt loop .
The spec ialseat beltretrac torisd eac tiva-
te d. Child
restrain tsystem
The useofseat beltsand child res train tsys-
te ms isreq uire dbylaw in:
R all 50 state s
R theU .S.t errito ries
R theD istri ct of Colum bia
R all Canad ianprovinces
You canobtain further inform ation about the
co rrec tc hild res train tsyst em from any auth or-
iz ed Mer cedes- BenzCenter. G
WAR
NING
If th ec hild res train tsyst em isins talled
inc orrectlyo na suitable seat,itc anno tp ro-
te ct as intended. Thechild can notthe nb e
res train ed inthee vent ofan acc iden t,heav y
brak ingorsudde nchang es ofdire ction .
The reisan increas edrisko finjury, possibly
eve nfatal.
Mak esuret haty ou obs ervethe child
res train tsyst em man ufacturer'sins tal lation
ins truct ionsand then otes on use. Pleas e
en sur e,that theb ase ofthec hild res train t
syst emisalways resting comple tely on the
seat cushion .Never plac eobjec ts,e .g.c ush-
ion s,und eror behi ndthec hild res train tsys-
te m. Onlyuse child res train tsyst ems with
th eo rigin alco ver desi gned for them. Only
rep lace damag edcover sw ithg enuine cov-
ers . G
WAR
NING
If th ec hild res train tsyst em isins talled
inc orrectlyo risn otsec ured ,itc an come
loos eint he eve ntofan acc iden t,heav y
brak ingoras udde nchang eind irection .The ch
ild res train tsyst em could bethrow n
about ,strik ing vehicleo ccup ant s.The reis
an increas edrisko finjury, possiblyeven
fat al.
Alw ays installchild res train tsyst ems prop-
erl y,eve nifthe ya renotb ein gu sed. Make
sur ethaty ou obs ervethe child res train tsys-
te mm anufac turer'sins tal lation instruct ions.
Fur ther inform ation onstowin gobjec ts,lug-
gage andloads securel ycan be foun dunder
“S towin goption s/stowage compar tments”
(Y page 226). G
WAR
NING
Child restrain tsyst ems ortheir sec urin gsys-
te ms whic hhaveb een damag edorsubj ec-
te dt oal oad inan acc iden tcan no longer
pro tect as intended. Thechild can notthe n
be res train ed inthee vent ofan acc iden t,
heav ybrak ing orsudde nchang es ofdire c-
ti on .The re isan increas edrisko finjury,
pos siblyevenf atal.
Replac echild res train tsyst ems whichhave
been damag edorsubj ectedt oal oad inan
acc iden tass oona spossible. Havethe
sec urin gsyst ems onthec hild res train tsys-
te mc hecked ataq ualif iedspec ialist work-
sho p,bef ore you installac hild res train tsys-
te ma gain .
The securin gsyst em ofchild res train tsyst ems
is thes eat belt system.
i If
you installac hild res train tsyst em on
th ef ront pass enger seat ,bes uret oo bserv e
th ei nstruct ionsand safetyn otes on the
"Oc cup ant Class ification Sys tem( OCS )"
(Y page 46).The reyou willalso findinfor-
mat ionondisab lingt he fron tp ass enger
fr on ta irbag.
All child res train tsyst ems mustmeetthe fol-
lowin gstand ards :
R U.S. Fed eral MotorVeh icleS afet yS tand ards
21 3a nd 225
R Canad ianMot orVeh icleS afet yS tand ards
21 3a nd 210.2
Con firmat ionthat thec hild res train tsyst em
co rrespo ndstot he stand ards canbefoun don
an instruct ion label onthec hild res train tsys- Child
reninthev ehicle
55Safet y Z

tem.
Thisconfi rma tionc an also be fou ndin
the installatio ninstru ctio nstha tare incl uded
wi th the childres traint syste m.
Ob serve the warning labe lsin the vehiclei nte -
rio ra nd onthe childres traint syste m. Ch
ildr estrain tsystem onthe front-
pass engers eat
Ge neral notes If
yo ui nstal lac hild res traint syste mo nthe
fro nt-pa ssenge rseat,alwa ysobserve the
ins tructio nsand safety note sonthe "Occu -
pa nt Clas sific ati on Sys tem (OCS) "(Y pa ge 46) .
Yo uc an thu savoid the risks tha tcouldarise
as aresulto f:
R an inco rrectly cate gorized perso nint he
fro nt-pa ssenge rseat
R de acti vating thefrontpasse nge rfront air
ba gu nintenti onally
R the unsuitab lepo sitio ning ofthe child
res traint syste m, e.g.too closetothe dash-
bo ard
Rea rwa rd-fac ingc hild res train tsystem If
cir cum stances require yout os ecureac hild
in ar earw ard-fa cing childres traint syste mo n
the front-pa ssenge rseat,alwa ysma kesure
tha tthe frontpasse nge rfront airb ag isde acti -
va ted .Onlyi fthe PASSEN GERAIRBAG OFF
ind icator lamp islitc onti nuously(Y page 39),
is the frontpasse nge rfront airb ag deacti va-
ted .
Alw ayso bserve the childres traint syste m
ma nuf actu rer'sins tallatio na nd opera ting
ins tructio ns.
Fo rwa rd-fac ingc hild res train tsystem If
yo us ecureac hild inaf orwa rd-f acing child
res traint syste mo nthe front-pa ssenge rseat,
al wa ysmov ethe front-pa ssenge rseata sfar
ba ck aspossi ble. The entirebase ofthe child
res traint syste mm usta lway sr esto nt he seat
cus hion ofthe front-pa ssenge rseat.The back-
res tofthe childres traint syste mm ustlie as
fla ta sp ossibl ea gainst the backre stof the
fro nt-pa ssenge rseat.The childres traint sys-
tem mustnot touchthe rooforb es ubjected
to aloa db ythe head res traint. Adju stthe
ang leof the seat backre stand thehead res
traint positio na ccord ingly.A lway sm ake
su re tha tthe sho ulde rb elts tra pisc orr ectl y
rou ted fromt hefront-pa ssenge rseatb elt
gu idet ot he sho ulde rb eltg uide on the child
res traint syste m. Thes houlde rb elts tra pm ust
be rou ted forwa rdand down fromt hefront-
pa sse nge rseatb eltg uide .
Alw ayso bserve the childres traint syste m
ma nuf actu rer'sins tallatio na nd opera ting
ins tructio ns. Pe
ts inthe vehic le G
WA
RNING
If yo ul eave ani ma lsuns uperv ised oruns e-
cur edinthe vehicle, the ym aypre ssbuttons
or sw itch es,for ins tance .
In thi sw ay,a nima lsma y:
R acti vate veh iclee quipm ent and become
tra pped,for exa mpl e
R sw itch syste ms onoroff and thereb y
end angerothe rroa du sers
Fur thermo re,uns ecu red anima lsma ybe
flu ng arou nd insidet he veh iclei nt he eve nt
of an acc ident orabrupt ste ering orbra king
ma neu ver,and the reb yinju reveh icleo ccu -
pa nts. There isar isko faccident and injury.
Nev erleav ea nima lsuna ttend edinthe vehi-
cle .
Alw ayss ecurea nima lspro perly when driv-
ing ,for ins tance with as uita blep etcar rier. Dri
ving safety systems Ov
erv iewo fdriv ings afety systems
In thi ss ectio n,youw illf indi nform ation abou t
the followi ng drivin gs afety syste ms:
R ABS (Anti -lock Bra king Sys tem)
(Y page 57)
R BAS (Bra keAss istS ys tem) (Ypage 57)
R Activ eBrake Assi st(Y page 58)
R Ada ptive bra kelights (Ypage 60)
R ESP ®
(Ele ctroni cSta bility Pro gram)
(Y page 60) 56
Dr
ivi ng safet ys ystemsSa fet y

4m
ph(7km/h) .Itu sesr ada rsensor technol-
ogy toasse ssthe traffic situation.
Up toas pee dofapp roxima tely155 mph
(250 km/h) ,Adap tive Brake Assist iscapa ble
of reacti ngtomoving objects thathave
al read ybeend etected assuch atlea stonce
over theperiodofobse rvatio n.
Up toas pee dofapp roxima tely44mph
(70 km/h) ,Adap tive Brake Assist reacts to
stationa ryobsta cles.
If Adap tiveBrake Assist demandsparti cularly
high braki ngforce, preventative passenger
protectio nmeasures (PRE-SAFE ®
)a re activa -
ted simu ltaneo usly(Ypag e53).
X Keep thebrake pedaldep resse duntil the
emerg encybrakingsitua tionisover.
ABS preve ntsthe whe elsfrom locking.
The brake swillw ork normal lyaga inif:
R you release thebrake pedal
R there isno longe rany dange rofac ollision
R no obsta cleisdetected infront ofyou rvehi -
cle
Adap tiveBrake Assist isthen deactivated .
Important safetynotes G
WARNING
Adap tiveBrake Assist cannot alwa ysclea rly
ide ntify objects andcompl extraffic situa-
tions.
In such cases ,Adap tive Brake Assist can:
R intervene unnecessarily
R not intervene
There isar isk ofan accid ent.
Alwa yspay carefu lattention tothe traffic
situa tionandberead ytob rake .Termi nate
the interventio nina non-critical drivingsit-
ua tion. G
WARNING
Adap tiveBrake Assist doesnotreact:
R to peop leor anima ls
R to oncoming vehicles
R to crossi ngtraffic
R whe ncornering As
aresu lt,the Adap tiveBrake Assist may
not intervene inallc ritica lconditio ns.There
is ar isk ofan accid ent.
Alwa yspay carefu lattention tothe traffic
situa tionandberead ytob rake .
Alwa ysada ptyou rspee dtos uitt he preva il-
ing road andtraffic conditio ns.
Due tothe nature ofthe system, particularly
compl icated butnon-critical drivingconditio ns
may also cau seAdap tiveBrake Assist tointer-
vene.
If Adap tiveBrake Assist isnot available due to
am alfunction inthe rada rsensor system, the
brake system remai nsava ilable with fullbrake
boos tingeffect andBAS. Adaptive
brakelights
i Obse
rvethe "Imp ortant safetynotes" sec-
tion (Ypag e57).
If you brake sharplyfrom aspee dofm ore than
50 km/h orifbraki ngisassi sted byBAS or
Brake Assist withCross-Traffi cAssist, the
brake lamps flash rapi dly.Int his way,traffic
travel ingbehi ndyou iswa rned inan even
more noticea blemanner.
If you brake sharplyfrom aspee dofm ore than
70 km/h toas tandsti ll,the haza rdwa rning
la mps areactiva tedautomatica lly.Ift he
brake sareapp lieda gain, the brake lamps light
up continuou sly.The haza rdwa rning lamps
swi tch offautomatica llyifyou travel faster
than 10km/h. Youcanalso swi tch offthe
haza rdwa rning lamps using the haza rdwa rn-
ing button (Ypag e99). ESP
®
(E lec tronic StabilityProgram)
Gene ralnote s i
Obse
rvethe "Imp ortant safetynotes" sec-
tion (Ypag e57).
ESP ®
monitors drivingstabi lityand traction,
i.e. pow ertransmis sionbetwe enthe tires and
the road surface.
If ESP ®
detects thatthevehi cleisdevi ating
from thedirection desiredbythe drive r,one or
more wheelsare brake dtos tabi lize thevehi -
cle. The engine outputisa lsom odified tokeep 60
Driv
ingsafety systemsSafety

the
vehicleo nthe desired course withi np hysi-
cal limi ts. ESP ®
as sists the driver when pulling
aw ay on wetorslipper yroads.E SP ®
can also
sta bilize the vehicled uringb raking .
ETS (Electro nicT rac tionS ystem) i
Ob
serve the "Impo rtantsafety note s"sec-
tio n(Ypa ge 57).
ETS tractio ncontro lisp arto fESP ®
.
ETS brakes thedrive wheelsind ividu ally ifthe y
sp in. Thisenables yout op ulla wa ya nd acc el-
era teon slip pe ry surfa ces ,for exa mpl eifthe
roa dsurface isslip pe ry on one side .Ina ddi-
tio n,mor edrive torq ueistra nsfe rredtothe
wh eelo rw heelsw itht ractio n.
ETS remains acti vewhen youd eacti vate ESP ®
.
Impo rtant safety notes G
WA
RNING
If ESP ®
is ma lfunctio ningitwi llnot provide
any vehicles tabilizati on. Thereisan
incr easedr isko fskidd ing orofan acc ident.
Exerc isec autio nw henc onti nuing todrive.
Hav eESP®
che cked ataq ualifi ed speci alist
wo rksh op.
Wh entow ingthe vehiclew itht he rea raxle
ra ised ,observe the note sonE SP®
(Y page 265 ).
If the 00BB ESP®
OFF warning lamp lights up
conti nuously,t he nE SP®
is de acti vated .
If the 00E5 ESP®
wa rning lamp and the00BB
ESP ®
OFF warning lamp arel itconti nuously,
ESP ®
is not availabl ed uetoam alfu nctio n.
Ob serve the inform ation on warning lamps
(Y page 212 )and disp laym essage sw hich
ma ybeshown inthe instrument cluste r
(Y page 184 ).
i Onl
yusewheelswith the reco mme nded
tire sizes .Onlyt henw illE SP ®
functio nprop-
erl y. Ch
arac teristics ofESP® Ge
neral info rmatio n
If the 00E5 ESP®
wa rning lamp goes out
be for eb eginning thejourney ,ESP ®
is au to-
ma tica llya ctive.
If ESP ®
inte rvenes ,the 00E5 ESP®
wa rning
la mp flashe sint he instrument cluste r.
If ESP ®
inte rvenes :
X Do not deacti vate ESP ®
und erany circum -
sta nces .
X Onl ydepress the accelera tor pedalasf ar as
nece ssarywh en pulling away.
X Ada ptyour drivin gs tyle to suitthe prevailing
roa dand weath ercond itions .
EC Os tart/ stopfuncti on
The ECO start/sto pfunctio nswitch esthe
eng ineoffautoma ticallyw hent he veh icle
stop smoving .The engin estarts automa tically
wh en the driver wants topullaw ay again.
ESP ®
rem ains inits pre viouslyse lected status ,
e.g .ifE SP ®
wa sd eacti vated befor ethe eng ine
wa sa utoma ticallys witch edoff.
De activ atin g/activ atin gESP®
(e xc ept
Me rce des -AMG SLC4 3) Impo
rtant safety notes
i Ob
serve the "Impo rtantsafety note s"sec-
tio n(Ypa ge 57) .
Yo uc an select betwe enthe followi ng states of
ESP ®
:
R ESP ®
is acti vated
R ESP ®
is de acti vated G
WA
RNING
If yo ud eacti vate ESP ®
,E SP ®
no longe rsta-
bi lizes thevehicle. There isan incr easedr isk
of ski dding and anacc ident.
Onl ydeacti vate ESP ®
in the situa tions
de scri bedint he followi ng.
It ma ybeb esttod eacti vate ESP ®
in the fol-
lo wi ng situa tions:
R wh en using snowchains
R in de ep sno w
R on sand orgra vel Dr
ivi ng safet ys ystems
61Safet y Z