Page 49 of 521

Fu
nction of theP ASSE NGER AIR BAGi ndica‐
to rlamps Sy
stem self- test
When thei gnition is switched on, asystems elf-
te st is per form ed during whic hthe two
PA SSENGER AIR BAGONa nd OFFindicator
lamps light up simultaneousl y.The
status of thef ront passenger airbag is dis‐
pla yeda fter thes ystem self-tes t:
R PASSENGER AIR BAGONl ightsupf or
60 seconds, subsequently bo thindicator
lamps ar eoff(PASSENGER AI RBAG ON and
OFF): thef ront passenger airbag is able to
deplo yintheeve nt of an accident.
R PASSENGER AIR BAGO FFlight supc ontinu‐
ously: thef ront passenger airbag is disabled.
It will then no tbed eployedint heeve nt of an
accident.
If th eP ASSENGER AIR BAGONi ndicator lam pis
off, on lytheP ASSENGER AIR BAGO FFindicator
lam pshows th estatus of thef ront passenger
airbag. The PASSENGER AIR BAGO FFindicator
lam pm aybe lit continuousl yorbeoff.
If th eP ASSENGER AIR BAGO FFindicator lamp
and the6 restra int sy stem warning lamp
light up simultaneousl y,thef ront passenger seat
ma ynotbe used. Also in this case, do no tins tall
ac hild restra int sy stem on thef ront passenger
seat. Ha vethea utomatic front passenger airbag
shutof fchec keda nd repaired immediately at a
qu alified specialis tworks hop. St
atus display
If th ef ront passenger seat is occupied, ensure,
bo th befor eand during thej ourne y,that thes ta‐
tus of thef ront passenger airbag is cor rect for
th ep reva ilin gs ituation.
Af teri nstalling arear ward-facing child
re stra int sy stem on thef ront passenger
seat: PASSENGER AIR BAGO FFmus tbel it con‐
tinuousl y. &
WARNING Risk of inju ryor deat hfrom
using arear ward-facing child restra int
sy stem when thef ront passenger airbag
is enabled
If yo us ecur eac hild in arear ward-facing
ch ild restra int sy stem on thef ront passenger
seat and theP ASSENGER AIR BAGO FFindi‐
cator lam pisoff,t he front passenger airbag
can deplo yintheeve nt of an accident.
The child could be stru ck bythea irbag.
Alw ayse nsur ethat thef ront passenger air‐
bag is disabled. The PASSENGER AIR BAG
OFF indicator lam pmustbel it. 46
Occupant saf ety
Page 50 of 521

NEVER use
arear wardfacing child restra int
on aseat pr otected byan ACTIVE FRONT
AIRB AGin front of it ;DEATH or SERIOUS
INJUR YtotheCHILD can occur. When ins
talling achild restra int sy stem on the
front passenger seat, obse rvet he vehicle-spe‐
cific information in this Owner's Manual.
Dependin gonthechild restra int sy stem and the
st atur eoft hechild, theP ASSENGER AIR BAG
OFF indicator lam pmaybe off. In this case, do
no tins tallth er ear ward-facing child restra int
sy stem on thef ront passenger seat.
Ins tead, ins tallth er ear ward-facing child
re stra int sy stem on asuitable rear seat.
Af teri nstalling aforwa rd-facin gchild
re stra int sy stem on thef ront passenger
seat: depending on thec hild restra int sy stem
and thes tatur eoft hechild, PASSENGER AIR
BA GO FFma ybel it continuousl yorbeoff.
Alw ayso bser vethef ollowing information. &
WARNING Risk of inju ryor deat hdueto
incor rect positioning of thef orwa rd-
fa cing child restra int sy stem
If yo us ecur eac hild in aforwa rd-facin gchild
re stra int sy stem on thef ront passenger seat
and youp ositio nthe front passenger seat too
clos etot he cockpit, in thee vent of an acci‐
dent, thec hild could:
R Come int ocontact wi th thevehicle inte‐
ri or if theP ASSENGER AIR BAGO FFindi‐
cator lam pislit,f or example.
R Bestru ck bythea irbag if theP ASSENGER
AIR BAGO FFindicator lam pisoff. #
Alw aysm ove thef ront passenger seat
as farb ackasp ossible and fully retract
th es eat cushion lengt hadjustment.
Alw aysm akes uret hat thes houlder belt
st ra pisc orrectly routed from thes eat
belt outle tonthevehicle tothes houl‐
der belt guide on thec hild restra int sys‐
te m. The shoulder belt stra pm ustbe
ro uted forw ards and down wardsf rom
th es eat belt outlet. If necessar y,adjust th
es eat belt outle tand thef ront
passenger seat accordingly. #
Alw ayso bser vethec hild restra int sys‐
te mm anufacturer's ins tallation instruc‐
tions. When ins
talling achild restra int sy stem on the
front passenger seat, obse rvet he vehicle-spe‐
cific information in this Owner's Manual.
If ap erson is sitting in thef ront passenger
seat: PASSENGER AIR BAGO FFma ybel it con‐
tinuousl yorbeo ff,d ependin gonthe person's
st ature.
Ap erson on thef ront passenger seat must
alw ayso bser vethef ollowing information:
R Ifth ef ront passenger seat is occupied with
an adult or aperson wit hastatur ec orre‐
sponding tothat of an adult ,the PASSENGER
AIR BAGO FFindicator lam pmustbeo ff.T his
indicates that thef ront passenger airbag is
enabled.
If th eP ASSENGER AIR BAGO FFindicator
lam pisl it continuousl y,an adult or person
wit hab uild cor responding tothat of an adult Occupan
tsafety 47
Page 51 of 521

should no
tuse thef ront passenger seat.
Ins tead, they should use arear seat.
R Ifth ef ront passenger seat is occupied wit ha
person of smaller statur e(e.g. ateenager or
small adult), theP ASSENGER AIR BAGO FF
indicator lam peither light supcontinuously
or remains out, depending on ther esult of
th ec lassification:
- PASSENGER AIRB AGOFF is off: mo vethe
front passenger sea tasfar ba ckas possi‐
ble or aperson of smaller statur eshould
use arear seat.
- Ifth eP ASSENGER AIRB AGOFF indicator
lam pisl it continuously: aperson of
smaller statur eshoul dnotuse thef ront
passenger seat. &
WARNING Risk of inju ryor deat hwhen
th eP ASSENGER AIR BAGO FFindicator
lam pisl it
If th eP ASSENGER AIR BAGO FFindicator
lam premain slit af tert he sy stem self-test,
th ef ront passenger airbag is disabled. It will
no tbed eployedint heevent of an accident. In
this case, thef ront passenger airbag can‐
no tp erform its intended pr otectiv efunction,
e.g. when aperson is seated in thef ront
passenger seat.
That person could, fore xamp le, com einto
con tact wi th thevehicle interior ,especially if
th ep erson is sitting tooc lose tothec ockpit.
If th ef ront passenger seat is occupied,
alw ayse nsur ethat:
R The classification of thep erson in the
front passenger sea tiscorrect and the
front passenger airbag is enabled or disa‐
ble dina ccordance wit hthe person in the
front passenger seat.
R The person is sea tedp roper lywit hac or‐
re ctly fastened seat belt.
R The front passenger seat has been mo ved
as farb ackasp ossible. Fu
rther related subjects:
R Child restra int sy stem on thef ront passenger
seat (→ page57). R
Suitable positionin gofthechild restra int sys‐
te m( →pag e59). Ro
ll bar &
DANG ER Risk of injur yordeathcaused
by am alfunctio noftheroll bars
If th ef unction of ther oll bar sisdefective,
th ey ma ynotextend in an accident fore xam‐
ple.
Consequent ly,t he roll bar scanno tprotect
ve hicle occupants as they ared esigned to
do. #
Have ther oll bar schec kedi mmediately
at aq ualified specialis tworks hop. &
WARNING Risk of inju rywhen ther oll
bar saretriggered
If th er oll bar saretriggered, ther eisar isk of
inju ry.
Alw aysm akes uret hat ther eisn othing in the
sweep behind ther ear head restra ints. 48
Occupant saf ety
Page 52 of 521

&
WARNING Danger of inju ryor death
from obstructed roll bars
If yo ul eave object soritems of clo thing on
th ec oversoft heroll bars, this ma yrestrict
th er oll bar sastheye xtend.
Consequently ,the roll bar scanno tprotect as
th ey ared esigned todo. Furthermore, the
object smayendanger vehicle occupants
when ther oll bar sextend. #
Alw aysm akes uret hat thet her eis
no thing in thes weep of ther oll bars. #
Alw ayss towa nd secur eobject sinthe
ve hicle cor rectl y. The
roll bar sareunder thec oversb ehind the
re ar head restra ints. The roll bar saretriggered
when danger of thev ehicle rolling overisd etec‐
te d.
Onc ethe roll bar shaveb een triggered, youc an
no lon gerc lose asoftt op that is open .Inthis
case, consult then extq ualified specialis twork‐
shop. PRE-SAFE
®
sy stem PRE-
SAFE®
(Pre-Crash Saf ety-Sy stem) PRE-
SAFE®
is able todetect cer tain critical driv‐
ing situations and implemen tpre-em ptivem eas‐
ures toprotect thev ehicle occupants.
PRE-SAFE ®
can implement thef ollowing meas‐
ures independentl yofeacho ther:
R Tightening thes eat belts on thed rive r's seat
and front passenger seat.
R Closing thes ide windo ws.
R Vehicles with memor yfunction: moving
th ef ront passenger seat toam oref avo ura‐
ble seat position. R
Vehicles with multicontour seat: increas‐
ing thea ir pressur einthe seat side bols ters
of thes eat backrest.
R PRE-SAFE ®
Sound: pr ovided that them ulti‐
media sy stem is switched on, generates a
brie fnoise signa ltostimulat ethe innat epro‐
te ctiv em echanism of aperson's hea ring.
* NO
TEDama gecaused byobject sinthe
fo ot we ll or behin dthe seat The automatic adjustment of
thes eat posi‐
tion ma yresult in damag etothe seat and/or
th eo bject. #
Stow object sinas uitable place. Re
versing theP RE- SAFE®
sy stem measures If an acciden
tdid no toccur ,the pre-em ptive
measures that we retak en ar ereve rsed.
Yo uw ill need toper form certain settings your‐
self. Occupan
tsafety 49
Page 53 of 521

#
Ifth es eat belt pre-tensioning is no treduced,
mo vethes eat backres tbacks lightl y.
The locking mechanism releases. Fu
nction of PRE-SAFE ®
PLUS (anticipatory
occupant pr otection plus) PRE-
SAFE®
PLUS can de tect cer tain impacts,
particular lyan imminent rear impact ,and take
pre-em ptivem easures toprotect thev ehicle
occupants. These measures canno tnecessarily
pr eve nt an imminent impact.
PRE-SAFE ®
PLUS can implement thef ollowing
measures independentl yofeacho ther:
R Tightening thes eat belts on thed rive r's seat
and front passenger seat.
R Activating ther ear hazar dwarning light sata
higher flashin gfrequ enc y.
R Increasing brak epressure when thev ehicle
is stationar y.This brak eapplication is cancel‐
led automaticall ywhen thev ehicle pulls
aw ay. If an accident did no
toccur ,the pre-em ptive
measures that we retake na re re versed.
Sy stem limitations
The sy stem will no tinitiat eanyaction in thef ol‐
lowing situations:
R when reve rsing
The sy stem will no tinitiat eanybraking applica‐
tion in thef ollowing situations:
R whils tdriving
or
R when entering or exitin gap arkin gspace
while using ActiveP arking Assist Children in
thev ehicle Note
sont he saf etransportation of children &
WARNING Risk of accident and inju ry
due tochildren lef tunat tende dint he
ve hicle
If yo ul eave children unat tende dint hevehi‐
cle, they ma ybea bletos etthev ehicle in
motion, fore xamp leby:
R Releasing thep arking brake.
R Shifting thet ransmission out of park
position j.
R Startin gthe engine.
In addition, they ma yoperat evehicle equip‐
ment. #
Neverlea ve children and animals unat‐
te nde dint hevehicle. #
When leaving thev ehicle, alw ayst ake
th ek eywit hyou and loc kthe vehicle.
This also applies tomobil ephones if the
"Digital Car Keyint he smartphone" 50
Occupant saf ety
Page 54 of 521

function is activated via
theM ercedes
me connect weba pp. &
WARNING Thisp oses an increased risk
of deat hduetoheat strokeorexposure
to cold in thev ehicle
If persons –particularly children –expe ri‐
enc eprolonged exposur etoextremely high
or lo wtemperatures, this poses arisk of
inju ryor eve nfatal injur y. #
Neverlea ve anyone –p articularly chil‐
dren –unat tende dint hevehicle. &
WARNING Risk of bu rnsw hen thec hild
seat is exposed todirect sunlight
If th ec hild restra int sy stem is exposed to
direct sunlight or heat, parts could heat up.
Children could suf ferb urns on these parts,
particularly on me tallic parts of thec hild
re stra int sy stem. #
Alw aysm akes uret hat thec hild
re stra int sy stem is no texpose dto
direct sunlight. #
Protect it wit hablanket,for example. #
Ifth ec hild restra int sy stem has been
ex posed todirect sunlight ,allowitto
cool befor esecu ring achild int oit. #
Neverlea ve children unat tende dint he
ve hicle. To
impr oveprotection forc hildren younger than
12 yearso ld or unde r1.50 minh eight,
Mercedes-Benz recommends youo bse rvet he
fo llowing information:
R Onlysecur echildren using achild restra int
sy stem whic hisappropriat etothe height,
ag ea nd weight of thec hild and suitable for
Mercedes-Benzv ehicles. Be suretoobserve
th ei nstruction sfor cor rect us eoft hechild
re stra int sy stem.
R Alw aysi ns tallac hild restra int sy stem on a
re ar seat if possible.
R Onlyuse thef ollowing securing sy stems for
ch ild restra int sy stems: -
thes eat belt sy stem
- theI SOFIX mounting brac kets
R The manufactu rer's ins tallation instructions
fo rt he child restra int sy stem.
R The warning labels in thev ehicle interior and
on thec hild restra int sy stem. &
WARNING Risk of inju ryor deat hcaused
by incor rect ins tallation of thec hild
re stra int sy stem
If th ec hild restra int sy stem is incor rectly
ins talled on asuitable seatin gposition, it
canno tperform its intended pr otectiv efunc‐
tion.
The child canno tberestrained in thee vent of
an accident, heavy braking or asudden
ch ang eofd irection. #
Alw aysc ompl ywitht he manufacturer's
ins tallation instructions fort he child
re stra int sy stem and its cor rect use. #
Makesur ethat thee ntir ebase of the
ch ild restra int sy stem alw aysr ests on
th es itting sur face of thes eat. Occupant saf
ety51
Page 55 of 521

#
Neverp lace objects under or behind
th ec hild restra int sy stem, e.g. cush‐
ions. #
Alw aysu sechild restra int sy stems with
th eo riginal co verd esigned fort hem. #
Alw aysr eplace damaged co vers with
ge nuine co vers. &
WARNING Risk of accident caused by
incor rectl yins tal led child restra int sys‐
te ms
If th ec hild restra int sy stem is no tcorrectly
ins talled or secured, it could release in the
ev ent of an accident, sudden braking or a
sudden chang eind irection.
The child restra int sy stem could be flung
aroun dand hit vehicle occupants. This poses
an increased risk of injur yorevend eath! #
Alw aysi ns tallch ild restra int sy stems
cor rectl y,eve nw henn otin use. #
Alw aysc ompl ywitht he child restra int
sy stem manufacturer's ins tallation
instructions. &
WARNING Risk of inju ryor deat hcaused
by theu se of damaged child restra int
sy stems
Child restra int sy stems or their retainin gsys‐
te ms that ha vebeen subjec tedtoal oad in
an acciden tmaythen no tbea bletoper form
th eir intended pr otectiv efunction.
The child canno tberestrained in thee vent of
an accident, heavy braking or asudden
ch ang eofd irection. #
Alw aysr eplace child restra int sy stems
immediatel ythat ha vebeen damaged or
in vo lved in an accident. #
Have thes ecuring sy stems fort he child
re stra int sy stems checkedataq ualified
specialis tworks hop befor einstalling a
ch ild restra int sy stem again. %
Use Mercedes-Benz car eproducts recom‐
mended byMercedes-Benztoc leanchild
re stra int sy stems. Further information can
be obtained at aqualified specialis twork‐
shop. The
following no tesm ustbeo bserved:
R When ins talling achild restra int sy stem on
th ef ront passenger seat, thei nformation on
ins talling achild restra int sy stem on thef ront
passenger seat (→ page57).
R Notesona ttaching suitable child restra int
sy stems (→ page59).
R Notesonr ecommende dchild restra int sys‐
te ms (→ page63).
R Instructions and saf etyn otes on thea uto‐
matic front passenger front airbag shutoff
(→ pag e44).
R Safetyn otes on thes eat belt (→ page36).
R Information on thec orrect us eoft he seat
belt (→ page40). 52
Occupant saf ety
Page 56 of 521

ISOFIX
child seat attachment Note
sonI SOFIX child seat attachments &
WARNING Risk of‑ inju ryor deat hifthe
maximum permissible gross mass for
usin ganI SOFIXchild restra int sy stem is
exc eeded
Fo rISOFIX child restra int sy stems in which
th ec hild is secured using thei ntegrated seat
belt integrated in thec hild restra int sy stem,
th ep ermissible gross mass of thec hild and
ch ild restra int sy stem is 33 kg.
If th ec hild and thec hild restra int sy stem
to ge ther we igh mor ethan 33 kg,the ISOFIX
ch ild restra int sy stem wit hintegrated seat
belt does no toffer suf ficient pr otection. An
exc essiv eload ma ybeplaced on theI SOFIX
ch ild seat attachments and thec hild ma ynot
be restra ined in thee vent of an accident, for
ex ample. #
Ifth ec hild and thec hild restra int sys‐
te mt ogether weigh mor ethan 33 kg,
onl yuse an ISOFIX child restra int sys‐ te
mw hichs ecures thec hild wit hthe
ve hicle seat belt. #
Also secur ethe child restra int sy stem
wit hthe TopT ether belt, if available. Alw
aysc ompl ywitht he information about the
mass of thec hild restra int sy stem
R inthem anufacturer's ins tallation and operat‐
ing instructions fort he child restra int sy stem
used
R onalabel on thec hild restra int sy stem, if
present
Re gularly checkt hat thep ermissible gross mass
of thec hild and child restra int sy stem is still
being adhered to.
When using achild restra int sy stem, be sur eto
obser vethem anufacturer's ins tallation and
operatin ginstructions as well as its cor rect use
and thes uitability of thes eats fora ttaching a
ch ild restra int sy stem.
ISOFIX is astandardised securing sy stem for
specially designed restra int sy stems. ISOFIX
ch ild restra int sy stems ar eappr ove dina ccord‐
ance wit hECE R44. Onl
ychild restra int sy stems that ha vebeen
appr ovedina ccordance wit hECE R4 4maybe
attached toISOFIX mounting brac kets. Symbo
lfor fitting an ISOFIX child restra int
sy stem Occupant saf
ety53