engine MERCEDES-BENZ GLA 2020 User Guide

If
it is necessary tomodify components ofthe
restraint systemtoaccommodate aperson
with disabilities, contact anauthori zed
Mercedes-Benz Centerfordetail s.USA only:
for further information contactourCustomer
Assistance Centerat1-800 FOR-MERCEDES
(1‑800‑367‑6372).
Mercedes-Benz recommendsthatyouonly use
driving aidswhich havebeen appro vedspecifi-
cally foryou rvehicle byMercedes-Benz. Restraint
systemwarning lamp
The functions ofthe restraint systemare
checked aftertheignition isswitched onand
at regul arintervals whilethe engine isrunning.
Therefore, malfunctions canbedetected in
good time.
The 0075 restraint systemwarning lampon
the instrument clusterlightsupwhen theigni-
tion isswitched on.Itgoes outnolater thana
few seconds afterthevehicle isstarted. The
restraint systemisopera tional.
A malfu nction hasoccurred ifthe 0075
restraint systemwarning lamp:
R does notlight upafter theignition is
switched on
R does notgoout after afew seconds withthe
engine running
R lights upaga inwhil ethe engine isrunning G
WARNING
If the restraint systemismalfu nctioning,
restraint systemcomponents maybetrig-
gered unintentionally ormay notbetrig-
gered asintended inthe event ofan acci-
dent. Thismay affect theEmergency Ten-
sioning Devices orair bags, forexample .
There isarisk ofinjury.
Have therestraint systemchecked and
repai redimmedi atelyataqua lifiedspecia list
workshop. PASSE
NGERAIRBAG indic atorlamp PASSENGER
AIRBAG ONindicator lamp0043
and PASSENGER AIRBAG OFFindicator
lamp 0044are part ofthe Occupant Classifica -
tion System (OCS).
The indicator lampsdispl aythe status ofthe
front-passenger frontairbag:
R PASSENGER AIRBAG ONlightsup for
60 seconds, subsequently bothindicator
lamp sare off(PASSENGER AIRBAG ONand
OFF): thefront-passenger frontairbag is
abl eto depl oyinthe event ofan accident.
R PASSENGER AIRBAG OFFlightsup: the
front passe ngerfront airbag isdeactiva ted.
It wil lthen notbedepl oyed inthe event of
an accident.
If the PASSENGER AIRBAG ONindicator lamp
is off, only thePASSENGER AIRBAG OFFindi-
cator lampshows thestatus ofthe front-
passe ngerfront airbag. ThePASSENGER AIR
BAG OFFindicator lampmaybelitcontinu-
ousl yor be off.
Depending onthe person inthe front-
passe ngerseat, thefront-passenger frontair
bag must either bedeactiva tedorenabl ed;
see thefollow ingpoints. Youmust make sure
of this both before andduringajourney.
R Children inachil drestraint system:
whether thefront-passenger frontairbag is
enabl edordeactiva teddepends onthe
installe dchild restraint system,andtheage
and size ofthe child. Therefore, besure to
observe thenotes onthe "Occupa ntCla ssifi-
cation System (OCS)"(Ypage 47)and on
"Ch ildre nin the vehicle "(Y page 53).
There youwillalso findinstructions onrear-
ward andforward -facingchildrestraint sys-
tems onthe front-passenger seat.
R All other persons: dependingon the classi -
fication ofthe person inthe front-passenger 40
Occ
upant safetySafety

X
Press therelease buttoninthe belt buckle,
hold thebelt tongue firmly andguide the
belt back.
Belt warning forthe driver andfront
passenger The
0076 seatbeltwarning lampinthe instr u-
ment cluster isareminder thatallvehicle
occupant smust weartheirseatbelts. Itmay
light upcont inuously orflash. Inaddition,
there maybeawarning tone.
Regardless ofwhether thedriver's seatbelt
has already beenfasten ed,the 0076 seatbelt
warning lamplights upfor sixseconds each
time theengine isstart ed.Ifthe fron tdoors
are closed andthedriver's orfron t-passenger
seat belthasnotbeen fasten ed,the 0076 seat
belt warning lamplights upagain afterthesix
seconds .As soon asthe driver's andfront-
passenger seatbelts arefasten edorafron t
door isopened again,the0076 seatbeltwarn-
ing lamp goesout.
If the driver's seatbeltisnot fasten edafter
the engine isstart ed,anadditional warning
ton ewill sound. Thewarning toneswitches off
after sixseconds oronce thedriver's seatbelt
is fasten ed.
If the vehicle's speedexceeds 15mph
(25 km/ h)once andthedriver's andfront-
passenger seatbelts arenot fasten ed,awarn-
ing tonesounds. Awarning tonealso sounds
with increasin ginten sityfor60seconds or
until thedriver orfron tpassenger havefas-
tened theirseatbelts.
If the driver orfron tpassenger unfastentheir
seat belts during thejourney, theseat belt
warning isactivat edagain. Air
bags
Introdu ction The
installation pointofan airbag canberec-
ognized bythe AIRBA Gmarkin g.
An airbag complemen tsthe correc tlyfasten ed
seat belt. Itis no substitut efor the seat belt.
When deployed, anairbag canincrease the
protec tionprovided forthe respect ivevehicle
occupant .
Not allairbags aredeployed inan accident .
The various airbags workindependen tlyof
each other (Ypage 51). However,
nosystem availabletoday cancom-
pletely eliminate injuriesandfatalities.
It is also notpossible torule outarisk ofinjury
caused byan airbag duetothe high speed at
which theairbag mustbedeployed.
Impor tantsafety notes G
WARNIN
G
If the fron tpassenger airbag hasbeen acti-
vated, achild onthe fron tpassenger seat
may behit bythe fron tpassenger airbag in
the event ofan accident .There isarisk of
injury orfatal injury.
NEVE Ruse arearward-facin gchild restraint
system onaseat protec tedbyan ACTIVE
FRONT AIRBAG;DE ATH orSERIOU SINJURY
to the CHILD canoccur.
When installing achild restraintsystem onthe
fron tpassenger seatobserve thevehicle-spe-
cific notes(Y page 57).Youmust observe
the noteson rearward andforward-f acingchild
restr aintsystems onthe fron t-passenger seat. G
WARNIN
G
If you deviate fromthecorrec tseat position,
the airbag cann otperform itsinten dedpro-
tect ivefunct ionand deployment mayeven
cause further injuries. Thisposes an
increased riskofinjury oreven fatalinjury.
To avoid anyrisks, eachvehicle occupant
must alway smake sureofthe following:
R Fasten theseat beltcorrec tly.Inthe case
of pregnant womeninparticular, make
sure thatthelapbelt isnever routed
across thestomac hor abdomen.
R Adopt thecorrec tseat position andkeep
as far away aspossible fromtheairbags.
R Observe thefollowing notes.
Always makesurethatthere arenoobject s
between theairbag and vehicle occupant .
All vehicle occupant smust observe thefollow-
ing notestoavoid risksposed bythe airbag
when itdeploys.
R Adjust theseats properly beforebeginnin g
your journey. Alwaysmakesurethatthe
seat isin an almost upright position. The 44
Occupant
safetySafety

The
rate ofvehicle deceleration oraccelera-
tion andthedirection ofthe force areessen-
tially determin edby:
R the distribution offorces during thecollision
R the collision angle
R the deformation characteristics ofthe vehi-
cle
R the charact eristics ofthe object withwhich
the vehicle hascollided
Fact orswhich canonly beseen andmeasured
after acollision hasoccurred donot play a
decisive roleinthe deployment ofan air bag.
Nor dothey provide anindication ofair bag
deployment.
The vehicle canbedeformed considerably,
without anair bag being deployed. Thisisthe
case ifonly parts which arerelatively easily
deformed areaffect edand therate ofdeceler-
ation isnot high. Conversely, airbags maybe
deployed eventhough thevehicle suffersonly
minor deformation .This isthe case if,for
example, veryrigid vehicle partssuchaslongi-
tudinal bodymembers arehit,and sufficient
deceleration occursasaresult.
If the restr aintsystem controlunit detect sa
side impact orifthe vehicle rollsover, the
applicable componentsofthe restr aintsystem
are deployed independent lyof each other
depending onthe apparent typeofaccident .
R Side impact airbags onthe side where the
impact takesplace, independent lyof the
Emergen cyTensionin gDevice andtheuse
of the seat beltonthe driver's seatand
outer seats inthe second row
The side impact airbag onthe front
passenger sidedeploys underthefollowing
condit ions:
- the OCS system detectsthat thefront
passenger seatisoccupied or
- the seat beltbuckle tongue isengaged in
the belt buckle ofthe front passenger
seat
R Window curtainairbag onthe side of
impact, independent lyof the use ofthe seat
belt andindependent lyof whether thefront -
passenger seatisoccupied
R Emergen cyTensionin gDevices, ifthe sys-
tem determin esthat deployment canoffer
additional protectioninthis situation
R Window curtainairbags onthe driver's and
front -passenger sideincert ainsituations
when thevehicle rollsover, ifthe system determin
esthat deployment canoffer addi-
tional protec tiontothat provided bythe
seat belt
i Not
allair bags aredeployed inan acci-
dent. Thevarious airbags work independ-
ently ofeach other .
How theairbag works isdetermin edbythe
severity ofthe accident detected,especially
the vehicle deceleration oracceleration and
the apparent typeofaccident :
R Head-on collision
R Side impact
R Rollover Automa
ticmeasur esafteran acci-
dent
Immediately afteranaccident ,the following
measures areimplemented, dependingonthe
type andseverity ofthe impact:
R the hazard warning lampsareswitched on
R the emergenc ylighting isactivated
R the vehicle doorsareunlocked
R the front sidewindows arelowered
R the engine isswitched offand thefuel sup-
ply iscut off
R vehicles withMercedes meconn ect:auto-
matic emergenc ycall Children
inthe vehicle Import
antsafety notes
Acc ident statist icsshow thatchildren secured
in the rear seats aresafer thanchildren
secured inthe front -passenger seat.Forthis
reason, Mercedes- Benzstronglyadvises that
you install achild restraintsystem onarear
seat. Children aregenerally betterprotected
there.
If achild younger thantwelve yearsoldand
under 5ft (1.50 m)inheight istraveling inthe
vehicle:
R alway ssecure thechild inachild restraint
system suitable forMercedes- Benzvehicles.
The child restraintsystem mustbeappropri-
ate tothe age, weight andsize ofthe child.
R be sure toobserve theinstr uctions and
safety notesinthis section inaddition tothe Children
inthe vehicle
53Safety Z

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

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

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

Smar
tKey Import
antsafety notes G
WARNING
If children areleft unsupervised inthe vehi-
cle, they could:
R operate thevehicle's equipment
Additionally, childrencouldsetthe vehicle in
motion if,for example, they:
R release theparking brake
R shift theautomatic transmissionoutof
park position 005D
R start theengine
There isarisk ofan accident andinjury.
Never leavechildren oranimals unattended
in the vehicle.
When leaving thevehicle, alwaystake the
SmartK eywith youand lock thevehicle. This
also applie sfor the Digital Vehicle Keyifthe
"Digital Vehicle Key"functionisactivated via
Mercedes meconn ect. G
WARNING
If you attach heavyorlarge object sto the
SmartK ey,the SmartK eycould beuninten -
tionally turnedinthe ignition lock.This
could cause theengine tobe switched off.
There isarisk ofan accident.
Do not attach anyheavy orlarge object sto
the SmartK ey.Remove anybulky keyrings
before insertin gthe SmartK eyinto theigni-
tion lock.
! Keep
theSmartK eyaway fromstrongmag-
netic fields. Otherwise, theremote control
funct ioncould beaffected.
Str ong magnetic fieldscanoccur inthe
vicinity ofpowerful electrical installations.
Do not keep theSmartK ey:
R with electron icdevices, e.g.amobile phone
or another SmartKey
R with metallic objects,e.g. coins ormetal foil
R inside metallic objects,e.g. ametal case
Vehicles withKEYLESS-GO startfunction:
do not keep theSmartK eyinthe cargo com- partment
.Otherwise, theSmartK eymay not
be detect ed,e.g. when startin gthe engine
using theStart /Stopbutton. Smar
tKeyfunctions 0043
0037 Tolock thevehicle
0044 0054 Toopen thetailgate
0087 0036 Tounlock thevehicle
X To unlock centrally: pressthe0036 but-
ton.
If you donot open thevehicle withinapprox-
imately 40seconds ofunlocking:
R the vehicle islocked again
R anti-t heftprotect ionisreactivated
X To lock: press the0037 button.
The SmartK eycent rally locks/un locks:
R the doors
R the tailgate
R the fuel filler flap
The turn signals flashonce when unlocking
and three times whenlocking.
When thelocator lighting isactivated viathe
multimedia system,itlights upwhen itis dark
after thevehicle isunlocked withtheremote
cont rol;see Digital Operator's Manual.
You canalso setanaudib lesignal toconfirm
that thevehicle hasbeen locked. Theaudib le
signal canbeactivated anddeactivated using
the on-board computer (Ypage 200).
X To
open thetailgate automatically from
outside thevehicle: pressandhold the
0054 button untilthetailgate opens
(Y page 79).
Vehicles withKEYLESS-GO orKEY LESS-GO
star tfunction: Smar
tKey
69Opening andclosing Z

Problem
Possible
causes/co nsequences and0050 0050
Solutions You
cannolonger lock
or unlock thevehicle
using KEYLE SS-GO. The
SmartK eybattery isdischarged ornearly discharged.
X Check theSmartK eybattery (Ypage 72)and replace itifneces-
sary (Ypage 72).
If this does notwork:
X Unlock (Ypage 76)orlock (Ypage 77)thevehicle usingthe
mechanical key. There
isinterf erence fromapowerful sourceofradio waves.
X Unlock (Ypage 76)orlock (Ypage 77)thevehicle usingthe
mechanical key. KEYLE
SS-GO ismalfunctionin g.
X Lock/ unlock thevehicle usingtheremote controlfunct ionofthe
SmartK ey.
X Have thevehicle andSmartK eycheck edataqual ified specialist
workshop.
If the vehicle canalso notbelocked/unlock edusing theremote
cont rolfunct ion:
X Unlock (Ypage 76)orlock (Ypage 77)thevehicle usingthe
mechanical key.
X Have thevehicle andSmartK eycheck edataqual ified specialist
workshop. The
engine cannot be
started usingtheSmart-
Key. The
on-board voltageistoo low
X Switch offnon- essential consumers, e.g.seat heating orinterior
lighting, andtrytostart theengine again.
If this does notwork:
X Check thestarter battery andcharge itifnecessary
(Y page 295).
or
X Jump-start thevehicle (Ypage 296).
or
X Consult aquali fiedspecialist workshop. The
engine cannot be
started usingtheStart /
Stop button. TheSmart-
Key isin the vehicle. The
vehicle islocked.
X Unlock thevehicle andtrytostart thevehicle again. The
SmartK eybattery isdischarged ornearly discharged.
X Check theSmartK eybattery (Ypage 72)and replace itifneces-
sary (Ypage 72).
If this does notwork:
X Start yourvehicle withtheSmartK eyinthe ignition lock. There
isinterf erence fromapowerful sourceofradio waves.
X Start yourvehicle withtheSmartK eyinthe ignition lock. 74
Smar
tKeyOpening andclosing

Problem
Possible
causes/co nsequences and0050 0050
Solutions You
have lostaSmart-
Key. X
Have theSmartK eydeactivated ataqual ified specialist work-
shop.
X Report theloss immediately tothe vehicle insurers.
X Ifnecessary, havethelocks changed aswell. You
have lostthe
mechanical key. X
Report theloss immediately tothe vehicle insurers.
X Ifnecessary, havethelocks changed aswell. Doo
rs Import
antsafety notes G
WARNING
If children areleft unsupervised inthe vehi-
cle, they could:
R operate thevehicle's equipment
Additionally, childrencouldsetthe vehicle in
motion if,for example, they:
R release theparking brake
R shift theautomatic transmission outof
park position 005D
R start theengine
There isarisk ofan accident andinjury.
Never leavechildren oranimals unattended
in the vehicle.
When leaving thevehicle, alwaystake the
SmartK eywith youand lock thevehicle. This
also applie sfor the Digital Vehicle Keyifthe
"Digital Vehicle Key"functionisactivated via
Mercedes meconn ect.
You should preferably placeluggage orloads
in the cargo compartmen t.Observe theload-
ing guidel ines(Ypage 251). Unloc
kingandopening doorsfrom
the inside X
To unlock andopen afront door: pulldoor
handle 0044.
If the door islocked, lockingknob0043pops
up. The door isunlocked andopens.
X To unlock arear door: pulluplocking
knob 0043.
The door isunlocked andcanbeopened.
X To open arear door: pulldoor handle 0044.
You canopen adoor from inside thevehicle
even ifit has been locked. Youcanonly open
the rear doors frominside thevehicle ifthey
are not secured bythe child-proof locks
(Y page 59).
If the vehicle haspreviously beenlocked with
the SmartK eyfrom theoutside, opening adoor
from theinside willtrigger theanti-t heftalarm
system. Switchoffthe alarm (Ypage 68). Centrally
lockingandunlocking the
vehicle fromtheinside
You cancent rally lockorunlock thevehicle
from theinside. Thiscanbeuseful ifyou wish
to lock thevehicle beforepullingaway ,for
example. Doo
rs
75Opening andclosing Z

X
Turn themechanic alkey count er-clockwise
as far asitwill gotoposition 0047.
The door isunlocked.
X Turn themechanic alkey back andremove
it.
X Insert mechanic alkey into theSmart Key
(Y page 72). Locking
thevehicle (mechanical key)
If the vehicle cannolonger belocked withthe
Smart KeyorKEYLE SS-GO, usethemechanic al
key.
X Open thedriver's door.
X Close thefront -passenger door,therear
doors andthetailgate.
X Press thelockin gbutton onthe driver’s door
(Y page 75).
X Check whether thelockin gknobs onthe
front -passenger doorandtherear doors are
still visible. Pressdownthelockin gknobs by
hand, ifnecessary.
X Close thedriver's door.
X Take themechanic alkey outofthe Smart -
Key (Ypage 71).
X Insert themechanic alkey into thelock of
the driver's doorasfar asitwill go. X
Turn themechanic alkey clock wiseasfar as
it will gotoposition 0047.
X Turn themechanic alkey back andremove
it.
X Make surethatthedoors andthetailgate
are locked.
X Insert mechanic alkey into theSmart Key
(Y page 72).
i If
you lock thevehicle asdescribed above,
the fuel filler flapisnot locked. Theanti-
theft alarm system isnot armed. Cargo
compar tment Import
antsafety notes G
WARNIN
G
Parts ofthe body could become trapped
during automatic closingofthe tailgate.
Moreover, people,e.g.children, maybe
standin gin the closing areaormay enter the
closing areaduring theclosing process.
There isarisk ofinjury.
Make surethatnobody isin the vicinit yof
the closing areaduring theclosing process.
Use oneofthe following optionstostop the
closing process:
R press the0054 button onthe Smart Key.
R pull orpress theremote operating switch
on the driver's door.
R press theclose button orSTOP button on
the tailgate.
R pull thehandle onthe tailgate. G
DANGER
Combustion enginesemitpoisonous
exhaust gasessuchascarbon monoxide.
Exh aust gases canenter thevehicle interior
if the tailgate isopen while theengine is
runnin g,especially ifthe vehicle isin
motion .There isarisk ofpoisoning.
Always switchoffthe engine beforeopening
the tailgate. Neverdrivewiththetailgate
open. Cargo
compar tment
77Opening andclosing Z