belt MERCEDES-BENZ S-CLASS COUPE 2017 User Guide

If
th es eat belt extende rdoesn otretract au to‐
matically ,itcan be retracted manually .Todoso,
press thes eat belt extende rbackasf ar as it will
go be fore startin gthe vehicle. Pressing thes eat
belt extende rbacki ntop lace requ ires forc e. &
WARNING Risk of inju ryor deat hwhen
additional restra int sy stems ar enotused
fo rp ersons wit hasmaller build
Pe rsons under 1.50 mt all canno twear the
seat belt cor rectly wi thout asuitable addi‐
tional restra int sy stem.
If th es eat belt is no twornc orrectly ,itc an‐
no tp erform its intended pr otectiv efunction.
In addition, an incor rectly fastened seat belt
can also cause injuries, fore xamp le, in the
ev ent of an acciden torwhen braking or
ch anging direction sudden ly.#
Alw ayss ecur epersons under 1.50 m
ta ll in asuitable restra int sy stem. &
WARNING Risk of inju ryor deat hdueto
damaged or modified seat belts
Seat belts cann otprov ide pr otection in the
fo llowing situations:
R Ifth es eat belts ar edamaged, modified,
ex treme lydirty ,bleached or dyed
R Ifth es eat belt buckle is damaged or
ex treme lydirty
R Ifth es eat belt tensioners, sea tbelt
anchorages or sea tbeltr etra ctor shave
been modified
Seat belts ma ybedamaged in an accident,
although thed amag emaynotbev isible, e.g.
due tosplinter sofglass.
Modified or damaged seat belts ma ytear or
fa il, e.g. in an accident.
Modified seat belt tensioner scould acciden‐
ta llyt rigger or failto function as intended. #
Neverm odify thes eat belts, seat belt
te nsioners, sea tbelta nchorages or seat
belt retractors. #
Makesur ethat thes eat belts are
undamaged, no tworna nd clean. #
Alw aysh ave thes eat belts checked
immediatel yafter an accident at a
qu alified specialis tworks hop. Mercedes-Benz
recommends that youo nly use
seat belt swhichh aveb een appr ovedspecifically
fo ry our vehicle byMercedes-Benz. &
WARNING Risk of inju ryor deat hfrom
deplo yedp yrot echni cseatb eltt ension‐
ers
Pyr otechni cseatb eltt ensione rsthat ha ve
been deplo yeda reno longer operational and
ar eu nable toper form their intended pr otec‐
tiv ef unction. #
Therefore, ha vedeplo yedp yrot echnic
se at belt tensioner simmedia tely
re placed at aqualified specialis twork‐
shop. 34
Occupant saf ety

Mercedes-Benzr
ecommendsthat youh avet he
ve hicle towe dtoaq ualified specialis tworks hop
af te rana ccident.
* NO
TEDama gecaused bytrapping the
seat belt If an unused seat belt is no
tfully retracted ,it
ma ybecome trappe dinthe door or in the
seat mechanism. #
Alw ayse nsur ethat an unused seat belt
is full yretra cted. Ex
tending/r etra ctin gthe sea tbelt extender The seat belt
extende rfor thef ront seat helps
yo uf asteny our seat belt. When thed oor is
closed, thes eat belt extende rextends.
Yo uc an also extend thes eat belt extende rusing
th es eat belt extende rbutton. #
Switc hthe ignition on. #
Press seat belt extende rbutton 1.
The sea tbelte xtende rextends.
The seat-belt extende risr etra cted agai nif:
R thes eat belt tongu eise ngaged in thes eat
belt buckle
R thes eat belt tongu eisn otengaged in the
seat belt buckle within 60 seconds In
this case, press seat-belt extende rbutton
1 again. The sea tbelte xtende rextends
again.
R ther espectiv edoor is opened
R youf old thes eat backres tfor wa rds
R nobody is sittin ginthe front passenger seat
If yo up ress seat belt extende rbutton 1
af te rt his, thes eat-belt extende rwillnol on‐
ge re xtend.
The sea tbelte xtende rmusta lway sber etra cted
whil ethe vehicle is in motion. Fa
stening seat belts If
th es eat belt is pulled quickl yors harply,the
seat belt retractor lo cks. The seat belt stra pc an‐
no tbep ulled out an yfurther. Occupant saf
ety35

#
Alw ayse ngag eseat belt tongue 2ofthe
seat belt int oseat belt buckle 1ofthec or‐
re sponding seat.
Ve hicles with PRE-SAFE ®
:if th ef ront seat belt
is no tpulled tight across your body ,the seat belt
adjustment ma yautomaticall yapply acertain
tigh tening forc e. Do no thold thes eat belt tightly
while it is adjusting .You can activat eand deacti‐ va
te thes eat belt adjustmen tfunction using the
multimedia sy stem.
Ve hicles with automatic front passen ger
fron tairbag deacti vatio ns ystem:
* NO
TEDeployment of thes eat belt ten‐
sioner and side impact airba gwhent he
front passenger seat is unoccupied If
th es eat belt tongu eise ngaged in thes eat
belt buckle of theu noccupied front
passenger seat, thes eat belt tensioner and
th es ide impact airbag ma yalso deplo yinthe
ev ent of an acciden talong wit hother sys‐
te ms. #
Onlyone person should use eac hseat
belt at an yone time. Ve
hicles without automatic front passen ger
fron tairbag deacti vatio ns ystem: *
NO
TEDeployment of thes eat belt ten‐
sioner when thef ront passenger seat is
unoccupied If
th es eat belt tongu eise ngaged in thes eat
belt buckle of theu noccupied front
passenger seat, thes eat belt tensioner may
also depl oyinthee vent of an acciden talong
wit ho ther sy stems. #
Onlyone person should use eac hseat
belt at an yone time. Re
leasing aseat belt #
Press ther elease button in thes eat belt
buckle and guide thes eat belt bac kwitht he
seat belt tongue. 36
Occupant sa fety

Ac
tivatin gordeactivatin gseatb elta djust‐
men tviathe multimedi asystem Multimedia sy
stem:
, Vehicle .
î Vehicle settings .
Belt
adjustment #
Activate Oor deacti vate ª thef unction. Seat belt
warning function fort he driver and
fron tpassen ger The
ü seat belt warning lam pinthe instru‐
ment displa yisareminder that all vehicle occu‐
pants mus twear their seat belts cor rectly.
In addition, an acoustic warning tone ma ysound.
As soo nasthe driver and front passenger fasten
th eir seat belts, thes eat belt warning goes out. Fu
nction of ther ear seat belt status display The
rear seat belt status displa yisonlyavailable
fo rc ertain countries. The
rear seat belt status displa yinforms you
whic hrear seat belt is no tfas tened.
Yo uc an immediatel ydismiss ther ear seat belt
st atus displa yusingthe bac kbutton on thel eft-
hand side of thes teering wheel . Airbags
Overvie
wofairbags 1
Knee airbag
2 Driver's airbag
3 Front passenger front airbag
4 Windowbag
5 Sideimpact airbag
The ins tallation location of an airbag is identified
by theA IRB AG symbol. Occupant saf
ety37

When activated, an airbag can pr
ovide addi‐
tiona lprotection fort he respectiv evehicle
occupant. AIRB
AG Potentia lprotection for
…
Knee airbag Thigh ,knee and lo werleg
Driver's airbag,
front passenger
front airbag Head and
ribcage
Wi ndowbag Head
Sid eimpact air‐
bag Ribca
ge,a lso pelvis for
front sea toccupants The front passenger front airbag can onl
ybe
depl oyed in an acciden tifthePASSENGER AIR
BA GO FFindicator lam pisoff.Ift he front
passenger seat is occupied, mak esure, bo th
befor eand during thej ourne y,that thes tatus of
th ef ront passenger front airbag is cor rect
(→ page 44). *
NO
TEImpo rtant points toremember if
th ef ront passenger seat is unoccupied In an accident,
thec omponents of the
re stra int sy stem ma ydeplo yunnecessarily
on thef ront passenger side if:
R Ther eareheavy objects on thef ront
passenger seat.
R The seat belt tongu eise ngaged in the
seat belt buckle of thef ront passenger
seat and thef ront passenger seat is
unoccupied. #
Stow object sinas uitable place. #
Onlyone person should use eac hseat
belt at an yone time. Pr
otection bythea irbags Depending on
thea cciden tsituation ,anairbag
ma ysupplement thep rotection of fere dbyac or‐
re ctly fastened seat belt. &
WARNING Risk of inju ryor deat hdueto
incor rect sea tposition
If yo ud eviat ef romt he cor rect sea tposition,
th ea irbag cann otper form its intended pro‐
te ctiv efunction and deployment ma yeven
cause fur ther injuries.
To avo id hazardous situations ,alway sm ake
sur ethat all vehicle occupants:
R Have their seat belt fastened cor rectly,
including pregnant women.
R Ares eated properly and keep as fara way
as possible from thea irbags.
R Obser vethef ollowing information. #
Alw aysm akes uret hat ther ea reno
objects between thea irbag and vehicle
occupant. To
avo idther isk sresulting from thed eployment
of an airbag, eac hvehicle occupant must
obser vethef ollowing information:
R Befor estartin gy our journe y,adjus tyour seat
cor rectly ;the driver's seat and front 38
Occupant saf ety

&
WARNING Risk of inju ryor deat hdueto
object sbetwe en thes itting sur face and
th ec hild restra int sy stem
Objects between thes itting sur face and the
ch ild restra int sy stem could af fect thef unc‐
tion of thea utomatic front passenger airbag
shutoff.
This could result in thef ront passenger air‐
bag no tfunctioning as intended during an
accident. #
Do no tplace an yobjects between the
sitting sur face and thec hild restra int
sy stem. #
The entir ebase of thec hild restra int
sy stem mus talway sr estont he sitting
sur face of thef ront passenger seat. #
The backres toftheforw ard-facin gchild
re stra int sy stem must, as farasp ossi‐
ble, be resting on thes eat backres tof
th ef ront passenger seat. #
Alw aysc ompl ywitht he child restra int
sy stem manufacturer's ins tallation
instructions. Ap
erson on thef ront passenger seat must
obser vethef ollowing information:
R Fasten seat belts cor rectl y.
R Sit in an almos tupright seat position wi th
th eir bac kagains tthe seat backrest.
R Sit wit htheir feet resting on thef loor ,ifp os‐
sible.
Otherwise, thef ront passenger airbag ma ybe
disabled bymis take ,for example in thef ollowing
situations:
R The front passenger transfer stheir weight by
supporting themselves on avehicle armrest.
R The front passenger sits in suc hawaythat
th eir weight is raised from thes itting sur‐
fa ce. &
WARNING Risk of inju ryor deat hdueto
deactivated front passenger airbag
If th eP ASSENGER AIRB AGOFF indicator
lam pisl it,thef ront passenger airbag is disa‐
bled. It will no tbedeployedint heeve nt of
an accident and canno tperform its intended
pr otectiv efunction. Ap
erson in thef ront passenger seat could
th en, fore xamp le, com eintoc ontact wi th
th ev ehicle interior ,especially if thep 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 front passenger sea thas been mo ved
as farb ackasp ossible.
R The person is seated cor rectl y. #
Ensu re,b othb efor eand during thej our‐
ne y,that thes tatus of thef ront
passenger airbag is cor rect. Occupant saf
ety41

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 43

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 (→ page53). R
Suitable positioning of thec hild restra int sys‐
te m( →pag e55). 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 sliding sunroof: closingthe
sliding sunroof.
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. 44
Occupant saf ety

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 certains ettings your‐
self. #
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 Occupant saf
ety45

-
thes eat belt sy stem
- theI SOFIX or i-Siz emounting brac kets
- theT op Tether anchorages
R The manufacturer'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. #
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 talled 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. Occupant saf
ety47