2017 MERCEDES-BENZ S-CLASS COUPE Owners Manual

Re
stra int sy stem Pr
otection byther estraint sy stem The
restra int sy stem includes thef ollowing:
R Seat belt sy stem
R Airbags
R Child restra int sy stem
R Child seat securing sy stem
The restra int sy stem can reduce ther isk of vehi‐
cle occupants coming int ocontact wit hparts of
th ev ehicle interior in thee vent of an accident. In
th ee vent of an accident, ther estraint sy stem
can also reduce thef orces towhic hthe vehicle
occupants ar esubjected.
As eat belt can onl yprovide theb estleve lofp ro‐
te ction if it is worncor rectl y.Depending on the
de tected accident situation, sea tbeltt ensione rs
and/or airbags supplement thep rotection
of fere dbyac orrectly wornseat belt. Seat belt
te nsioner sand/or airbags ar enotdepl oyed in
ev erya ccident. In order
fort he restra int sy stem toprov ide the
intended le velofp rotection, eac hvehicle occu‐
pant mus tobser 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.
R Alw ayss ecur epersons under 1.50 mt all in
an additional restra int sy stem suitable for
Mercedes-Benzv ehicles.
Ho wever,no sy stem available toda yc an com‐
ple tely eliminat einjuries and fata lities in every
acciden tsituation .Inparticular ,the seat belt
and airbag generally do no tprotect against
objects penetrating thev ehicle from theo utside.
It is also no tpossible tocompl etelyr ule out the
ri sk of injur ycaused bythea irbag deploying. Re
duce drestraint sy stem pr otection &
WARNING Risk of inju ryor deat hfrom
modifications tother estraint sy stem
The restra int sy stem can no longer function
cor rectly af tera lterations ha vebeen made.
The restra int sy stem ma ythen no tprotect
th ev ehicle occupants as intended byfailing
in an accident or triggering unexpec tedly ,for
ex ample #
Nevera lter thep arts of ther estraint
sy stem. #
Nevertamper wit hthe wiring or any
electronic component parts or their
software. If it is necessar
ytomodifythev ehicle toaccom‐
modat eaperson wit hdisabilities, con tact a
qu alified specialis tworks hop.
Mercedes-Benz recommends that youo nly use
drivin gaids whic hhaveb een appr ovedspecifi‐
cally fory our vehicle byMercedes-Benz. 30
Occupant saf ety

Re
stra int sy stem functionality When
thei gnition is switched on, asystems elf-
te st is per form ed, during whic hthe 6
re stra int sy stem warning lam plight sup. It goes
out no later than afew second safter thev ehicle
is star ted. The components of ther estraint sys‐
te ma rethen functional. Malfunctioning
restra int sy stem Am
alfunction has occur redint herestra int sys‐
te mi f:
R The 6 restra int sy stem warning lamp
does no tlight up when thei gnition is
switched on.
R The 6 restra int sy stem warning lamp
light supc ontinuousl yorrepeatedly during a
journe y. &
WARNING Risk of inju ryor fata linjury
due toam alfunctio nintherestra int sys‐
tem
If th er estraint sy stem is malfunctioning,
re stra int sy stem components ma ybetrig‐
ge redu nintentionall yormight no tbetrig‐
ge redata ll inthee vent of an accident. This
ma yaffect thes eat belt tensioner or airbag,
fo re xamp le. #
Have ther estraint sy stem checkeda nd
re paired immediatel yataqualified spe‐
cialis tworks hop. Fu
nction of ther estraint sy stem in an acci‐
dent Ho
wt he restra int sy stem worksisd etermined by
th es eve rity of thei mp act de tected and thet ype
of acciden tanticipated:
R Frontal impact
R Rear impact
R Sideimp act
R Rollover The activation
thre sholds fort he components of
th er estraint sy stem ar edetermined based on
th ee valuatio nofthe sensor values measured at
va rious points in thev ehicle. This process is pre-
em ptiveinn ature. The triggering/deployment of
th ec omponents of ther estraint sy stem should
ta ke place in good time at thes tart of thec olli‐
sion.
Fa ctor swhich can only be see nand measu red
af te rac ollision has occur redc ann otpla yad eci‐
siv erole in airbag deployment, nor do they pro‐
vide an indication of airbag deployment.
The vehicle ma ybedeformed significantl ywith‐
out an airbag being deplo yed. This is thec ase if
onl yparts whic hare re lativel yeasil ydeformed
ar ea ffected and ther ateofv ehicle deceleration
is no thigh. Con versely ,ana irbag ma ybe
deplo yede vent hough thev ehicle suf fers only
minor deformation. If very rigid vehicle parts
suc hasl ongitudinal member sarehit, fore xam‐
ple, thev ehicle deceleration ma ybehigh enough
fo rt his tohappen. Occupant saf
ety31

The co
mponent softherestra int sy stem can
be activated or deplo yedi ndependentl yof
eac hother: Component De
tected deploy‐
men tsituation
Seat belt tensioner sFrontal impact, rear
impact ,side impact,
ro llo ver
Driver' sairbag, front
passenger airbag Fr
ontal impact Knee airbag
Frontal impact Side impact airbag Side impact
Wi ndo wairba gS ide impact,rollo ver,
frontal impact The front passenger airbag can onl
ybedeployed
in an acciden tifthePASSENGER AIR BAGO FF
indicator lam pisoff.Ift he front passenger seat
is occupied, mak esure, bo thbefor eand during
th ej ourne y,that thes tatus of thef ront
passenger airbag is cor rect (→ page 44). &
WARNING Rick of burns from ho tairbag
components
The airbag parts ar ehotafte rana irbag has
been depl oyed. #
Do no ttouc hthe airbag parts. #
Have ad eplo yeda irbag replaced at a
qu alified specialis tworks hop as soon
as possible. Mercedes-Benz
recommends that youh avet he
ve hicle towe dtoaq ualified specialis tworks hop
af te rana ccident. Take this int oaccount ,partic‐
ularly if aseat belt tensioner is trig geredoran
airbag deplo yed.
If th es eat belt tensioner saretrig geredorana ir‐
bag is deplo yed, youw ill hear abang, and a
smal lamoun tofpowder ma yalso be released:
R The bang will no tgene rallya ffect your hear‐
ing.
R Ingeneral ,the powder released is no thaz‐
ardous tohealt hbut ma ycause short-term
breathing dif ficulties topersons suf fering
from as thma or other pulmonar yconditions. Pr
ov ided it is saf etodoso, leavethev ehicle
immediately or open thew indo wino rder to
pr eve nt brea thing dif ficulties. Sea
tbelts Pr
otection pr ovided bythes eat belt Alw
aysf asteny our seat belt cor rectly before
st artin gajourney .As eatb eltc an only pr ovide
th eb estleve lofp rotection if it is worncor rectly. &
WARNING Risk of inju ryor deat hdueto
incor rectly fastened seat belt
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. #
Alwa ys ensur ethat all vehicle occu‐
pants ha vetheir seat belts fastened
cor rectl ya nd ar esitting prope rly. 32
Occupant saf ety

In order
fort he cor rectly wornseat belt topro‐
vide thei ntended le velofp rotection, eac hvehi‐
cle occupant mus tobser vethef ollowing infor‐
mation:
R The seat belt mus tnotbe twis teda nd must
fi tt ightly and snu glya cross theb ody.
R The seat belt mus tberouted across the
centr eofthe shoulder and as lo wdown
across theh ips as possible.
R The shoulder section of thes eat belt should
no ttouc hyour nec knor be routed under
yo ur ar morb ehindyour bac k.
R Avoid wearing bulk ycloth ing, e.g. awinter
coat.
R Push thel ap belt down as farasp ossible
across your hips and pull tight wit hthe shoul‐
der section of theb elt. Ne verrout ethe lap
belt across your abdomen.
R Neverrout ethe seat belt across sharp, poin‐
te d, abrasiv eorfragile objects.
R Onlyone person should use eac hseat belt at
an yo ne time. Ne vera llow babies and chil‐
dren totrave lsitting on thel ap of ano ther
ve hicle occupant. R
Nevers ecur eobjects wit haseat belt if the
seat belt is also being used byone of the
ve hicle's occupants. Alw ayso bser vethe
instructions forl oading thev ehicle when
securing objects, luggag eorloads
(→ pag e104).
Also ensur ethat no objects, e.g. acushion,
ar ee verp laced between aperson and the
seat.
If ch ildren ar etrave lling in thev ehicle, be sur eto
obser vethei nstruction sand saf etyn otes on
"Children in thev ehicle" (→ page48). Re
duce dseatb eltp rote ction &
WARNING Risk of inju ryor deat hdueto
incor rect sea tposition
The sea tbeltd oesn otoffert he intended
le ve lofp rotection if youh ave notm ove dthe
seat backres ttoanalmostvertical position.
When braking or in thee vent of an accident,
yo uc ould slide underneat hthe seat belt and sus
tain abdominal or nec kinjuries, fore xam‐
ple. #
Adjus tthe seat proper lybefor ebegin‐
ning your journe y. #
Alw ayse nsur ethat thes eat backres tis
in an almos tvertical position and that
th es houlder section of your seat belt is
ro uted across thec ent reofyour shoul‐
der. &
WARNING Risk of inju ryor deat hdueto
an extende dseatb elte xtende rwhile the
ve hicle is in motion
If th es eat belt extende rise xtende dwhile
th ev ehicle is in motion, thes eat belt will not
fi tc orrectl ya gainst theb ody.
The seat belt ma ynotthen pr ovide the
proper pr otection. #
Alw ayse nsur ethat thes eat belt
ex tende risr etra cted whil ethe vehicle
is in motion. Occupant saf
ety33

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