MERCEDES-BENZ GLA SUV 2020 Repair Manual
Manufacturer: MERCEDES-BENZ, Model Year: 2020, Model line: GLA SUV, Model: MERCEDES-BENZ GLA SUV 2020Pages: 346, PDF Size: 51.22 MB
Page 61 of 346

G
WARNING
If perso ns,particu larlychild renaresubjec-
ted toprolo nged exposu reto extreme heat
or cold, there isarisk 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 larlyon the metal partsofthe child
restrai ntsystem. Thereisarisk ofinjury .
If you leavethe vehicl e,taking thechild with
you ,alw aysensure thatthechild restrai nt
system isnot expose dto dire ctsunli ght.
Protect itwith abla nket, 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.
Chil d-proof locksfor the rear doors You
secure eachdoorindivi duallywith the
child -proof locksonthe rear doors. Adoor
secure dwith achild -proof lockcannot be
opened frominsidethe vehicl e.When thevehi-
cle isunlocked ,the door canbeopened from
the outsi de.
X To activate: pressthechild -proof locklever
up inthe direction ofarrow 0043.
X Make surethatthechild -proof locksare
working properly.
X To deactiv ate:press thechild -proof lock
leve rdow nin the direction ofarrow 0044. Override
featureforthe rear side win-
dows X
To activate/ deactivate:press button 0043.
If indica torlamp 0044islit, opera tionofthe
rear side windo wsisdisa bled.Opera tionis
only possi bleusing the switches inthe driv-
er's door. Ifindica torlamp 0044isoff, opera -
tion ispossi bleusing the switches inthe
rear compartment. Pets
inthe vehi cle G
WARNING
If you leaveanima lsunsu pervi sedorunse-
cured inthe vehicl e,they maypress buttons
or swi tches, forinstance.
In this way,anima lsmay :
R activa tevehicl eequ ipme ntand become
trappe d,for exampl e
R swi tch systems onoroff and thereby
endange rother roadusers
Furthermore ,unsecu redanima lsmay be
flung aroundinsid ethe vehicl ein the event
of an accide ntor abru ptsteering orbraki ng
maneu ver,and thereby injurevehicleoccu-
pants. Thereisarisk ofaccide ntand injury .
Never leaveanima lsunattended inthe vehi-
cle.
Alwa yssecure animalsprope rlywhen driv-
ing, forinstance withasui table petcarrie r. Pets
inthe vehi cle
59Safety Z
Page 62 of 346

Dri
vin gsa fet ysys tems Over
view ofdrivin gsa fet ysys tems
In this sec tion ,you willfindinfo rm ation about
th efo llow ing dri vin gsaf etysys tems :
R AB S(An ti-loc kBrak ing Syst em)
(Y page 60)
R BA S(Brak eAss istSyst em) (Ypage 61)
R Ac tive Brak eAs sis t(Y page 61)
R ES P®
(E lec tron icStabili tyProgr am)
(Y page 63)
R EB D(Elect ronicBrak efo rc eDist ribution )
(Y page 67)
R AD APTIV EBRA KE(Ypage 67)
R ST EERCON TROL (Ypage 67) Im
por tant safet ynot es
If you failtoadapt yourdrivin gst yle orifyou
are inat te nt ive ,th edri vin gsaf etysys tems can
ne ither reduce theris kof an acc iden tno r
ov err ide thelaws ofphys ics. Dr iving safety
sys tems are mer elyaids designed toass ist
dri vin g.
You arerespon sibleformain taining th edis -
ta nc eto theveh icle in fron t,forveh icle spe ed,
fo rbra king ingoo dtime, andforst ayin gin
lan e.Always adapt yourdrivin gst yle tosuit
th epre vail ing ro ad and weat hercond ition sand
main tain asaf edis tanc efrom theveh icle in
fr on t.Dr ive carefully.
The drivin gsaf etysys tems described only
wor kas effect ive lyas pos siblewhen there is
adeq uateco ntact between thetires and the
ro ad sur face.Plea sepay special atte nt ion to
th eno teson tires ,rec ommen dedminimum
ti re tread dept hs,etc. (Y page 306).
In win try dri vin gco nd ition s,always usewinter
ti res (M+ Stires )and ifne cessa ry,snow
ch ain s.On lyin this way willthedri vin gsaf ety
sys tems described inthis sec tion wor kas
ef fect ive lyas pos sible. ABS
(Anti-lock Brak ing System)
Gen eral inf orma tion AB
Sreg ulat esbra kepre ssu reinsuc haway
th at thewhee lsdo notloc kwhen youbrake. Thi
sallow syou tocontinue steer ing th eveh i-
cl e when braking .
The 0025 ABSwarn ing lamp intheinst rum ent
cl ust erligh tsup when theign ition isswit ched
on .It goe sout when theen gin eis run ning .
AB Swor ksfrom aspe edofabout 5mph
(8 km /h), regard lessof road- sur faceco nd i-
ti on s.AB Swor kson slip perysur faces, even
when youonlybra kegen tly.
Im por tant safet ynot es i
Obs
erveth e"Im portant saf etyno tes" sec -
ti on (Ypage 60). G
WAR
NING
If AB Sis malf unction ing, thewhee lsco uld
loc kwhen braking .The steer abili tyand
bra king charac teris tics would besev erely
aff ected. The reisan incr ease ddan ger of
sk iddi ngand acciden ts.
Dr ive oncar efully. HaveAB Sch ecke dimm e-
diat elyataqualif iedspecialis twor kshop .
Whe nAB Sis malf unction ing, other systems ,
in cludin gdri vin gsaf etysyst ems ,will also
bec omeinope rative .Obs erveth einfo rm ation
on theAB Swarn ing lamp (Ypage 234)and
dis play messageswhic hmay besho wninthe
in st rum entcl ust er(Y page 205).
Br ak ing X
IfABS interven es:continue todepr essthe
bra kepeda lvig orousl yunt ilth ebra king sit-
uat ion isov er.
X To ma keafu llbr ak eap plica tion: depr ess
th ebra kepeda lwit hfull forc e.
If AB Sinte rven es when braking ,you willfeel a
puls ing in thebra kepeda l.
The pulsating bra kepeda lcan beanindic ation
of haz ardous road cond ition s,and function sas
a rem inder totake extra car ewhil edri vin g.
Off -road ABS An
ABSsys tem spe cific ally suitedtooff-ro ad
te rrain isact ivat edaut omatically once theof f-
ro ad pro gram isact ivat ed(Ypage 170).
At spe eds belo w20 mph (30km/h), thefron t
whee lsloc kcyc lically during bra king .The dig-
gin g-in effect ach ieved inthepro cess red uce s 60
Dri
ving safet ysys temsSaf ety
Page 63 of 346

the
stop ping dista nce onoff-roa dterr ain. Thi s
li mi ts ste ering cap ability . BAS
(Brak eAs sist Sys tem)
Ge neral info rmatio n BAS
opera tes ineme rgency braking situa tions.
If yo ude pre ssthe brakepedalqu ickl y,BAS
au toma tically bo osts thebraking force, thus
sho rteni ngthe stop ping dista nce.
Impo rtant safety notes i
Ob
serve the "Impo rtantsafety note s"sec-
tio n(Y page 60) . G
WA
RNING
If BAS isma lfunctio ning,the braking dis-
tance inan eme rgency braking situa tionis
incr eased. The reisaris kof an acc ident.
In an eme rgency braking situa tion,de pre ss
the brakepedalwi th fullfor ce. ABS prevents
the wheelsfro mlocking .
Braki ng X
Kee pthe brakepedalfir ml yde pre sse dunti l
the eme rgency braking situa tionis ove r.
ABS prevents thewheelsfro mlocking .
The brakes willfu nctio nas usua lonce you
rel ease the brakepedal.BAS isde acti vated . Ac
tiv eBrake Assist
Ge neral info rmatio n i
Ob
serve the "Impo rtantsafety note s"sec-
tio n(Y page 60).
Activ eBra keAssi stcons ists of adi sta nce
wa rning functio nwi th an autono mousbra king
fu nctio nand asitua tion-de pende ntbra ke
bo osti ngeffect.
Activ eBra keAssi stcan helpyouto minim ize
the riskof acol lisi on with the vehicletra vel ing
in fro ntor red uce theeffects ofsuch acol li-
si on.
If Activ eBra keAssi stdetects thatthe reisa
ris kof col lisi on, youwi llbe warned visually
and acoustica lly. Ifyo udo not reactto the vis- ua
lcol lisi on warning orthe warning tone ,
au tono mousbra king canbeinitia ted incri tica l
si tua tions. Ifyo uap plythe brakeyourse lfin a
cri tica lsi tua tion,Activ eBra keAssi stsupp orts
yo uwi th asitua tion-de pende ntbra keboosti ng
eff ect.
Impo rtant safety notes Dete
ctionof hazar dous situa tions can bepar-
ticu larly impaire dif:
R Th ere isdirt on the senso rsor any thing else
cove ringthe senso rs
R Th ere issno wor heavyra in
R Th ere isinte rferenc eby othe rra da rsou rces
R Th ere arestro ngrada rref lectio ns,forexa m-
pl e in pa rki ng garage s
R Anar row vehicleis tra vel ing infro nt, e.g.a
moto rbike
R Aveh icleis tra vel ing infro nton adi ffe rent
li ne
R Yo uar edri vin ganew vehicleor servi cing on
the Activ eBra keAssi stsyste mhasjus t
be en car riedou t
Ob serve the impo rta ntsafety note sin the
"Br eaking -innote s"sectio n(Y page 124) .
Fol lowi ng dama getothe frontend ofthe vehi-
cle ,ha ve the confi guratio nand opera tionof
the rada rse nso rche cked ataqu alifi ed spe-
cia list wo rksh op.Th isalso appliesto col lisi ons
at low sp ee ds where novisible da ma getothe
fro ntofthe vehicleis ap parent.
Ac tiv atin g/dea ctivati ng Activ
eBra keAssi stisacti veafter eve ryigni-
tio ncy cle .
Yo ucan activate or deacti vate Activ eBra ke
Assi st(Y page 197 )in the on-b oard com-
pu ter. Whendeacti vated ,the dista nce warning
fu nctio nand theautono mousbra king functio n
ar ealso deacti vated .
If Activ eBra keAssi stisde acti vated ,the 00D4
sy mbo lap pe arsin the assista nce graphicdis-
pl ay .
If yo uha ve acti vated DSR, ActiveBra keAssi st
is de acti vated .For furthe rinf orm ation onDSR,
se e(Y page 169 ). Dr
ivi ng safet ysy stem s
61Safet y Z
Page 64 of 346

Dist
ance war ning funct ion Gen
eral inf orma tion
The distanc ewarn ing fun ction can helpyou to
min imizetheris kof afron t-en dco llis ion witha
veh icle ahea dor red uce theef fect sof suc ha
co llis ion .If th edis tanc ewarn ing fun ction
det ects that there isaris kof aco llis ion ,you
will bewarn edvisually andacoustically.
Im por tant safet ynot es
i Obs
erveth e"Im portant saf etyno tes" sec -
ti on fordri vin gsaf etysys tems (Ypage 60). G
WAR
NING
The distanc ewarn ing fun ction doe sno t
rea ct:
R to peo pleorani mals
R to oncomin gveh icles
R to cross ing traff ic
R when corneri ng
The distanc ewarn ing fun ction may notgiv e
warn ings inall critic al sit uat ions.The reisa
ris kof an acc iden t.
Al ways paycareful atte nt ion tothetraff ic
sit uat ion and berea dytobra ke.
Al ways adapt yourspeedtosuit thepre vail -
in g ro ad and traff icco nd ition s. G
WAR
NING
The distanc ewarn ing fun ction cannot
always clear lyiden tify obj ects and compl ex
tr aff icsit uat ions.
In suc hcas es, thedis tanc ewarn ing fun ction
may:
R giv ean unn ecess ary warn ing
R no tgiv eawarn ing
The reisaris kof an acc iden t.
Al ways paycareful atte nt ion tothetraff ic
sit uat ion and donotrel ysol ely onthedis -
ta nc ewarn ing fun ction .
Fun ction
St art ing at aspe edofappr oximat ely4mph
(7 km/ h),the dista nce warning functio nwa rns
yo uif yo ura pidlyap pro ach aveh iclein fro nt.
An inte rmittent warning tone willthe nsou nd, and
the00BA dista nce warning lamp willlight
up inthe instrument cluste r.
X Bra keimmed iatel yin ord erto incr ease the
di sta nce fromthe vehiclein fro nt.
or X Take eva sive acti on, provided itis sa fe to do
so.
Due tothe natu reofthe syste m, partic ular ly
comp licate dbu tnon-cr itical drivin gcond itions
ma yal so cau sethe syste mto disp laya wa rn-
ing .
Wi th the helpof the rada rse nso rsy ste m, the
di sta nce warning functio ncan detect obsta -
cle stha tar ein the path ofyour veh iclefor an
exte ndedpe rio dof tim e.
Up toasp ee dof appro xim ately44 mph
(70 km/h ),the dista nce warning functio ncan
al so rea ctto sta tionar yob sta cles,su ch as
stop pedor parked vehicles .
Au ton omo usbrak ingfun ction If
the driver does not reactto the dista nce
wa rning signa lin acri tica lsi tua tion,Activ e
Bra keAssi stcan assist the driver with the
au tono mousbra king functio n.
The autono mousbra king functio n:
R gives thedriver mor etim eto rea ctto critica l
dri vin gsitua tions
R can helpthe driver toavoid an acc ident or
R can reduce theeffects ofan acc ident
Veh icle swi tho utActiv eDi stan ceAssist
DI STRO NIC:the autono mousbra king functio n
is availabl e in the followi ng spee dra nge s:
R 4-65 mph (7-105 km/h )for mov ing
ob jects
R 4-31 mph (7-50 km/h )for stationar y
ob jects
Veh icle swi th Activ eDi stan ceAssist
DI STRO NIC:the autono mousbra king functio n
is availabl e in the followi ng spee dra nge s:
R 4-124 mph (7-200 km/h )for mov ing
ob jects
R 4-31 mph (7-50 km/h )for stationar y
ob jects
Due tothe natu reofthe syste m, partic ular ly
comp licate dbu tnon-cr itical drivin gcond itions
ma yal so cau sethe autono mousbra king func-
tio nto inte rvene. 62
Dr
ivi ng safet ysy stem sSafet y
Page 65 of 346

Situat
ion-dependent brakingassis-
tance General
informat ion
i Observe
the"Important safetynotes" sec-
tion (Ypage 60).
With thehelp ofthe radar sensor system,
Act ive Brake Assist candetect obstacles that
are inthe path ofyour vehicle foranexten ded
period oftime.
If Act ive Brake Assist detectsa risk ofcollision
with thevehicle infront ,it calculates thebrake
pressure necessary toavoid acollision. Ifyou
apply thebrakes forcefully, <0056004C0057005800440057004C005200510010004700480053004800510047
0010[
ent braking assistance adaptstothe situation
and automatically increasesthebrake pres-
sure toadegree appropriate tothe traffic sit-
uation.
Situation- dependent brakingassistance pro-
vides braking assistance inhazardous situa-
tions atspeeds above4mph (7km/h). Ituses
radar sensor technology toassess thetraffic
situation.
Situation- dependent brakingassistance is
capable ofreacting tomoving objectsthat
have already beendetect edassuch atleast
once overtheperiod ofobservation, upto
vehicle speeds ofaround 155mph
(250 km/h).
Situation- dependent brakingassistance can
also detect stationary objects,up tovehicle
speeds ofaround 44mph (70km/h).
X Keep thebrake pedaldepressed untilthe
emergency brakingsituation isover.
ABS prevent sthe wheels fromlocking.
The brakes willwork normally againif:
R you release thebrake pedal
R there isno longer anydanger ofacollision
R no obstacle isdetect edinfront ofyour vehi-
cle
Situation- dependent brakingassistance isthen
deactivated.
Import antsafety notes
i Observe
the"Important safetynotes" sec-
tion fordriving safetysystems (Ypage 60). G
WARNING
Act ive Brake Assist doesnotreact:
R to persons, bicycles, motorcyclesorani-
mals
R to approaching vehicles
R to cross traffic
R on bends
As aresult, Active Brake Assist cannot inter-
vene inall critical situations. Thereisarisk
of an accident.
Always paycareful attentiontothe traffic
situation andbeprepared tobrake. G
WARNING
Adaptive BrakeAssist cannot alwaysclearly
identify objectsand complex trafficsitua-
tions.
In such cases, Adaptive BrakeAssist might:
R interv eneunnecessarily
R not interv ene
There isarisk ofan accident.
Always paycareful attentiontothe traffic
situation andbeready tobrake. Terminate
the interv ention inanon- critical drivingsit-
uation.
Due tothe nature ofthe system, complex but
non- critical drivingcondition smay alsocause
Act ive Brake Assist tointerv ene.
Even ifAct ive Brake Assist isnot availa bledue
to amalfunction inthe radar sensor system,
the brake system isstill availa blewith full
brake boosting effectandBAS. ESP
®
(Ele ctronic Stability Program)
General notes i
Observe
the"Important safetynotes" sec-
tion (Ypage 60).
ESP ®
monitor sdriving stability andtract ion,
i.e. power transm issionbetween thetires and
the road surface.
If ESP ®
detect sthat thevehicle isdeviating
from thedirection desiredbythe driver, oneor
more wheels arebraked tostabilize thevehi- Driving
safetysystems
63Safety Z
Page 66 of 346

cle
.The engineoutpu tis also mod ified tokeep
the vehi cleonthe desiredcou rse within physi-
cal limits. ESP®
ass ists thedriver whe npu lling
aw ay on wetor slippe ryroa ds. ESP ®
can also
stab ilize the vehi cleduring braking.
ETS/ 4ETS (Electro nicTractio nSys tem) i
Obs
erve the"Important safety notes" sec-
tion (Ypage 60).
ETS tracti oncontrol ispa rtof ESP ®
.On vehi -
cle swi th 4MATIC ,4ETS ispa rtof ESP ®
.
Tra ction control brakes thedrive whe elsindi -
vid ually if they spin.Thi sena bles youto pull
aw ay and acce lerate onslippe rysurface s,for
exa mpl eif the roadsu rface isslippe ryon one
sid e.In addition, more drive torqu eis transf er-
red tothe whe elor whe elswi th tracti on.
Tra ction control remainsacti ve,evenif yo u
dea ctiva teESP ®
.
Off-ro ad4ETS (Electro nicTractio nSys -
tem) A
4ETS system specificallysu ited tooff-ro ad
terra inisacti vate dau toma tically once theoff-
roa dpro gramisacti vate d(Y page 170 ).
Impo rtant safetynotes i
Obs
erve the"Important safety notes" sec-
tion (Ypage 60). G
WARNI
NG
If ESP ®
is mal functi oning,ESP ®
is una ble to
stab ilize the vehi cle.Addi tiona lly, furth er
dri ving safety systems aredeactiva ted.This
incre asesthe riskof skid ding and anacci -
dent.
Drive oncare fully.Have ESP®
checke dat a
qu alifi ed spe cialist wo rksho p.
Vehi cles without 4MATIC:whe ntowi ngyour
vehi clewith the front axlerai sed ,it is imp or-
tant thatyouobs erve thenotes onESP ®
(Y page 300 ).
If the 00BB ESP®
OFF warning lamp lights up
continu ously ,ESP ®
is dea ctiva ted.
If the 00E5 ESP®
wa rning lamp and the00BB
wa rning lamp are lit continu ously ,ESP ®
is not
ava ilab ledu eto amal functi on. Obs
erve theinforma tion onwarning lamps
(Y page 236) anddispl aymess ages whi ch
may besho wninthe instru ment cluster
(Y page 205).
Only usewhe elswi th the recom mendedtire
size s.Only thenwillESP ®
functi onpro perly.
Charac teristicsof ESP® Gen
eral informatio n
If the 00E5 ESP®
wa rning lamp goesou t
bef ore beginning thejour ney,ESP ®
is au to-
mati callyacti ve.
If ESP ®
interv enes,the 00E5 ESP®
wa rning
la mp flashe sin the instru ment cluster.
If ESP ®
interv enes:
X Do not deactiva teESP ®
und erany circu m-
stance s.
X Only depress theacce lerato rped alas far as
neces sarywhe npu lling away.
X Ada ptyour driving styleto suitthe prevailing
roa dand weathe rcondi tions.
EC Ostart/s topfunc tion
The ECO start/stop functionswi tches the
engi neoff automa tically whe nthe vehi cle
stop smovi ng.The enginestar tsautoma tically
whe nthe driver wants topullaw ay again.
ESP ®
rema insinits pre viouslysel ected status.
Exa mple :if ESP ®
wa sdea ctiva tedbefore the
engi newasswi tched off,ESP ®
rema insdea cti-
vate dwhe nthe engi neisswi tched onagain.
De acti vatin g/acti vatin gES P®
(e xc ept
Merc edes‑AMG vehicle s) Impo
rtant safetynotes
i Obs
erve the"Important safety notes" sec-
tion (Ypage 60).
You canselect betw eenthefollow ing state sof
ESP ®
:
R ESP ®
is acti vate d.
R ESP ®
is dea ctiva ted. G
WARNI
NG
If yo udea ctiva teESP ®
,ESP ®
no long ersta-
bi lizes thevehi cle.The reisan incre asedris k
of skid ding and anacci dent. 64
Dri
vin gsafe tysys temsSafe ty
Page 67 of 346

Only
deactivate ESP®
in the situations
described inthe followi ng.
The spinning ofthe wheels resultsinacutting
action forbetter traction onloose surfaces.
It may bebest todeactivate ESP®
in the fol-
lowing situations:
R when usingsnowchains
R in deep snow
R on sand orgravel
i Act
ivate ESP®
as soon asthe situations
described abovenolonger apply.ESP ®
will
otherwise notbeable tostabilize thevehicle
if the vehicle startstoskid orawheel starts
to spin.
! Avoid
spinning thedriven wheels foran
extended periodwithESP®
deactivated. You
could otherwise damagethedrivetrain.
Deactivating/ activatingESP®
You candeactivate oractivate ESP®
via the
on-board computer (Ypage 197).
ESP ®
deactivated:
The 00BB ESP®
OFF warning lampinthe
instrument clusterlightsup.
ESP ®
activated:
The 00BB ESP®
OFF warning lampinthe
instrument clustergoesout.
Characteristics whenESP®
is deactiva-
ted
If ESP ®
is deactivated andone ormore wheels
start tospin, the00E5 ESP®
warning lampin
the instrument clusterflashes. Insuch situa-
tions, ESP®
will notstabilize thevehicle.
If you deactivate ESP®
:
R ESP ®
no longer improves drivingstability.
R Engine torqueisno longer limited andthe
drive wheels areable tospin.
R Traction controlisstill activated.
R Act ive Brake Assist isno longer available;
nor isitactivated ifyou brake firmlywith
assistance fromESP®
.
R STEE RCONTROL isno longer active.
R ESP ®
still provides supportwhenyoubrake
firmly. Deac
<0057004C005900440057004C0051004A0012004400460057004C005900440057
004C0051004A> ESP®
(Mercedes‑AMG vehicles) Importa
ntsafety notes
i Observe
the"Important safetynotes" sec-
tion (Ypage 60).
You canselect between thefollowi ngstates of
ESP ®
:
R ESP ®
is activated.
R SPORT handling modeisactivated.
R ESP ®
is deactivated. G
WARNING
When SPORT handling modeisactivated,
there isagreater riskofskidding andacci-
dents.
Only activate SPORThandling modeinthe
situations described inthe followi ng. G
WARNING
If you deactivate ESP®
,ESP ®
no longer sta-
bilizes thevehicle. Thereisan increased risk
of skidding andanaccident.
Only deactivate ESP®
in the situations
described inthe followi ng.
In the followi ngsituations, itmay bebetter to
activate SPORThandling modeordeactivate
ESP ®
:
R when usingsnowchains
R in deep snow
R on sand orgravel
R on speciall ydesignated roadswhenthe
vehicle's ownoversteering andundersteer-
ing characteristics aredesired
Driving inSPORT handling modeorwithout
ESP ®
requires anextremely qualified and
experienced driver.
i Act
ivate ESP®
as soon asthe situations
described abovenolonger apply.ESP ®
will
otherwise notbeable tostabilize thevehicle
if the vehicle startstoskid orawheel starts
to spin.
! Avoid
spinning thedriven wheels foran
extended periodwithESP®
deactivated. You
could otherwise damagethedrivetrain. Driving
safetysystems
65Safety Z
Page 68 of 346

Deact
ivating/a ctivating ESP ® X
To act ivateSPO RThand ling mode: briefly
pre ssbut ton0043.
The 0074 SPORT handlingmod ewarn ing
lamp intheinst rum entclu ster ligh tsup. The
SPO RThandling mode SPO
RThandling modemes sage appearsin
th emult ifunction disp lay.
X To
dea ctivate SPO RThand ling mode:
bri eflypre ssbut ton0043.
The 0074 SPORT handlingmod ewarn ing
lamp intheinst rum entclu ster goe sout .
X To dea ctivate ESP ®
:pre ssbut ton0043 until
th e00BB ESP®
OF Fwarn ing lamp lightsup
in theinst rum entclu ster.
The 00E5 OFF OFF
message appearsinthemult i-
fun ction disp lay.
X To act ivateESP ®
:bri eflypre ssbut ton0043.
The 00BB ESP®
OF Fwarn ing lamp inthe
in st rum entclu ster goe sout .The 00E5 ESP®
ON ON
mes sage appearsinthemult ifunction
disp lay.
Cha racte rist ics ofact ivatedSPO RThan-
dl ing mode
If SP ORT handlingmod eis act ivat edand one
or mor ewhee lsstart tospin ,th e00E5 ESP®
warn ing lamp intheinst rum entclu ster flas hes .
ES P®
on lystabiliz estheveh icleto alimi ted
deg ree.
Whe nSP ORT handlingmod eis act ivat ed:
R ES P®
on lyimp rovesdrivin gst abilit yto a
limi teddeg ree.
R Tra ction control isstill act ivat ed.
R The engin e's torque ison lyres trict ed toa
limi teddeg ree and thedri ve whee lsmay
st art tospin . The
spinning ofthewhee lsres ultsin acut -
ti ng act ion forbet tertr act ion onloos esur fa-
ce s.
R ES P®
still pro vides supp ortwhen youbrak e
fir mly.
Cha racte rist ics when ESP®
is dea ctiva-
te d
If ES P®
is deac tivat ed and oneor mor ewhee ls
st art tospin ,th e00E5 ESP®
warn ing lamp in
th einst rum entclu ster doe sno tflas h.Insuc h
sit uat ions,ES P®
will notst abiliz eth eveh icle.
If you deac tivat eES P®
:
R ES P®
no longer improvesdrivin gst abilit y.
R En gin eto rque isno longer limitedand the
dri ve whee lsare able tospin .
The spinning ofthewhee lsres ultsin acut -
ti ng act ion forbet tertr act ion onloos esur fa-
ce s.
R Tra ction control isstill act ivat ed.
R Ac tive Brake Assis tis no longer avail able;
no ris itact ivat edifyou brak efir mly with
ass istanc efrom ESP®
.
R ES P®
still pro vides supp ortwhen youbrak e
fir mly.
Off -road ESP® An
ESP®
syst emspecifica llysuit edtooff-roa d
te rrain isact ivat edaut oma tical lyon ce theof f-
roa dpro gramisact ivat ed(Ypage 170).
Of froad ESP®
inte rven es wit hadelay ifth ere
is ove rste eri ng orund ersteeri ng,th us imp rov-
in g tract ion.
ESP ®
trail er stabi lization Gen
eral inf orma tion
If your vehicle/ trailer combi nation beginsto
swer ve,ESP®
ass istsyou inthis sit uat ion.
ES P®
slo ws theveh icledown bybrak ing and
limi ting theen gin eout put untilth eveh icle/
tr ailer combi nation has stabiliz ed.
Imp ortant saf etynot es G
WAR
NING
If roa dand weat hercond ition sare poor,
tr ailer stabiliz ation will notbe able topre -
ven tth eveh icle/ trailer combi nation from 66
Dri
ving safet ysys temsSaf ety
Page 69 of 346

swerving.
Trailerswithahigh centerofgrav-
ity can tipover before ESP®
can detect this.
There isarisk ofan accident.
Always adaptyour driving styletothe pre-
vailing roadandweather conditions.
If your vehicle withtrailer (vehicle/trailer com-
bination) beginstolurch, youcan only stabilize
the vehicle/trailer combinationbydepressing
the brake firmly.
ESP ®
trailer stabilization isactive above
speeds ofabout 65km/h.
ESP ®
trailer stabilization doesnotwork if
ESP ®
is deactivated ordisabl edbecause ofa
malfunction. EBD
(electronic brakeforcedistribu-
tion)
General informat ion EBD
monitors andcont rolsthebrake pressure
on the rear wheels toimprove drivingstability
while braking.
Importa ntsafety notes i
Observe
the"Important safetynotes" sec-
tion (Ypage 60). G
WARNING
If EBD ismalfunctioning, therear wheels can
lock, e.g.under fullbraking. Thisincreases
the risk ofskidding andanaccident.
You should therefore adaptyour driving
style tothe different handling characteris-
tics. Have thebrake system checked ata
qual ified speciali stworkshop.
Please observe theinformation onwarning
and indicator lamps(Ypage 234)
(Y page 234)aswell ason displa ymessages
(Y page 207). ADA
PTIVE BRAKE
ADA PTIVE BRAKE enhances brakingsafetyand
offers increased brakingcomfort.In addition
to the braking function, ADAPTIVE BRAKE also has
theHOLD function (Ypage 165)andhill
start assist (Ypage 128). STEER
CONTROL
General informat ion STEE
RCONTROL helpsyoubytransmitt inga
noticeable steeringforcetothe steering wheel
in the direction requiredforvehicle stabiliza-
tion.
This steering assistance isprovided inparticu-
lar if:
R both right wheels orboth leftwheels areon
a wet orslippery roadsurface whenyou
brake
R the vehicle beginstoskid
Importa ntsafety notes i
Observe
the"Important safetynotes" sec-
tion (Ypage 60).
No steering assistance isprovided fromSTEER
CONTROL, if:
R ESP ®
is malfunctioning
R the steering ismalfunctioning
If ESP ®
is malfunctioning, youwillbeassisted
further bythe electrical powersteering. Protection
againsttheft Immobilizer
The immobili zerprevents yourvehicle from
being started without thecorrect SmartKey.
X To activate withtheSmar tKey: remove
the SmartKey fromtheignition lock.
X To
activate withKEYLESS-GO start-func-
tion orKEY LESS-GO: switchtheignition off
and open thedriver's door.
X To deactivate: switchonthe ignition.
When leaving thevehicle, alwaystake the
SmartKey withyouand lock thevehicle. Any-
one canstart theengine ifavalid SmartKey
has been leftinside thevehicle.
i The
immobili zerisalwa ysdeactivated
when youstart theengine.
In the event thattheengine cannot bestar-
ted (yet thevehicle's batteryischarged), Protection
againsttheft
67Safety Z
Page 70 of 346

the
syste misnot opera tional .Co ntact an
au thor izedMe rced es-Benz Center orcal l
1-800 -FOR-MER Cedes(in the USA) or
1-800-38 7-0100(in Ca nad a). ATA
(anti-the ftalarm system) X
To arm: lock the vehiclewi th the Sma rtKey
or KEYL ESS-GO .
Indi cato rla mp 0043flashe s.The alarm system
is arm edafte rap pro xima tely15 seco nds.
X To dis arm: unlock thevehiclewi th the
Sma rtKey orKEYL ESS-GO .
or X Inse rtthe Sma rtKey intotheigniti onlock.
A vis ualand audible alarm istrig geredifthe
al arm system isarm edand youop en:
R ado or
R the vehiclewi th the mech anical key
R the tailgate
R the hood
X To
switchthe alarm offwith the Smart-
Ke y:pre ssthe 0036 or0037 button onthe
Sma rtKey .
The alarm isstop ped.
or
X Vehi
cles with KEYLES S-GO start-f unc-
tio nor KEYLES S-GO :rem ove theStart/
Stop button from theigniti onlock
(Y page 125 ).
X Inse rtthe Sma rtKey intotheigniti onlock.
The alarm isstop ped. X
To
sto pthe alarm using KEYLES S-GO :
gra spthe outsid edo or handl e.The Sma rt-
Key mustbe outsid ethe vehicle.
The alarm isstop ped.
or X Pre ssthe Start/ Stopbutton onthe dash-
bo ard .The Sma rtKey mustbe inside the
veh icle.
The alarm isstop ped.
The alarm isnot stop ped, eve nif yo uclo sethe
op en door tha ttrig geredit,for exa mpl e.
i If
the alarm stayson for more than
30 seco nds,the Mer cedesme conne ct
eme rgency callsy stem automa tically send s
a mes sage tothe Custom erCe nter. Thisis
do ne either bytext message ordata con-
necti on.
The eme rgency callsy stem sendsthe mes -
sa ge ordata pro vided tha t:
R youha ve subsc ribed tothe Mer cedesme
conne ctser vice
R the Mer cedesme conne ctser vice has
be en acti vate dpro perly
R the nece ssarymob ile pho nenetw orkis
ava ilab le 68
Pro
tectionagai nstthef tSafe ty