2018 MERCEDES-BENZ S-CLASS COUPE belt

When braking or intheeve nt of an accident,
yo u could slideunderneath the seat belt and
sus tain abdominal or neck injuries, forex am‐
ple.
#Ad just the seat proper lybefore begin‐
ning your journe y.
#Always ensure that the seat backrest is
in an almost vertical position and that
th e shoulder section of your seat belt is
ro uted across the center of your shoul‐
der.
& WARNING Risk of injury or death dueto
an extended seat belt extender while the
ve hicle is in motion
If th e seat belt extender is extended while
th eve hicle is in motion, the seat belt will not
fi t cor rectly tothe body.
The seat belt may not then pr ovide the
proper pr otection.
#Alw ays ensure that the seat belt
ex tender is retracted while theve hicle
is in motion.
If th e seat belt extender does not retract au to‐
matically, it can be retracted manually. Todo so,
press the seat belt extender ba ckasfar as it will
go before starting theve hicle. Pressing the seat
belt extender ba ckinto place requ ires forc e.
&
WARNING Risk of injury or death when
additional restra int sy stems are not used
fo r persons with a smaller build
Pe rsons under 5 ft(1.50 m) tall cannot wear
th e seat belt cor rectly wi thout a suitable
additional restra int sy stem.
If th e seat belt is not worncor rectly, it can‐
not per form its intended pr otective function.
In addition, an incor rectly fastened seat belt
can also cause injuries, forex ample, in the
ev ent of an accident or when braking or
ch anging direction suddenly .
#Always secure persons under 5 ft
(1.50 m) tall in a suitable restra int sys‐
te m.
&
WARNING Risk of injury or death dueto
damaged or modified seat belts
Seat belts cann otprov ide pr otection in the
fo llowing situations:
RIf th e seat belts are damaged, modified,
ex treme lydirty, bleached or dyed
RIfth e seat belt buckle is damaged or
ex treme lydirty
RIfth e Emer gency Tensioning Devices,
seat belt anchorages or seat belt retrac‐
to rs have been modified
Seat belts may be damaged in an accident,
although the damage may not be visible, e.g.
due tosplinters of glass.
Modified or damaged seat belts may tear or
fa il, e.g. in an accident.
Modified Emer gency Tensioning Devices can
accidental lytrig ger or failto function as
intended.
#Ne ver modify the seat belts, Emer gency
Te nsioning Devices, seat belt ancho‐
ra ge s or seat belt retractors.
Occupant safe ty37

#Make surethat the seat belts are
undamaged, not wornand clean.
#Alw ays ha vethe seat belts checked
immediately af ter an accident at a
qu alified specialist workshop.
Only use seat belts that ha vebeen appr ovedfo r
yo ur vehicle byMercedes-Benz.
&
WARNING Risk of injury or death from
deplo yedpy rotech nic Emergency Ten‐
sioning Devices
Pyro tech nic Emergency Tensioning Devices
th at ha vebeen deplo yed are no longer opera‐
tional and are unable toper form their inten‐
ded pr otective function.
#Therefore, ha vedeplo yedpy rotech nic
Emergency Tensioning Devices immedi‐
ately replaced at a qualified specialist
wo rkshop.
Mercedes-Benz recommends that you ha vethe
ve hicle towe dto aqu alified specialist workshop
af te r an accident. *
NO
TEDama gecaused bytrapping the
seat belt
If an unused seat belt is not fully retracted, it
may become trapped in the door or in the
seat mechanism.
#Alw ays ensure that an unused seat belt
is fully retracted.
Ex tending/r etra cting the seat belt extender
The seat belt extender forth e front seat helps
yo ufa sten your seat belt. When the door is
closed, the seat belt extender extends.
Yo u can also extend the seat belt extender using
th e seat belt extender button.
#Switch on the ignition.
#Press seat belt extender button 1.
The seat belt extender extends.
The seat belt extender retracts again in thefo l‐
lowing cases:
RThe seat belt tongue is engaged in the seat
belt buckle
38 Occupant saf ety

RThe seat belttongue is not engaged in the
seat belt buckle within 60 seconds
If yo upr ess seat beltextender button 1
again in this case, the seat belt extender will
ex tend again.
ROpen there spective door.
RFo ldthe seat backrest forw ards.
RThe front passenger side remains unoccu‐
pied.
If yo upr ess seat beltextender button 1
again in this case, the seat belt extender will
no longer extend.
The seat belt extender must always be retracted
while theve hicle is in motion.
Fa stening seat belts
Ifth e seat belt is pulled quickly or sharply, the
seat belt retractor lo cks. The seat belt stra p can‐
not be pulled out any fur ther.
#Alw ays engage seat belt tongue 2ofthe
seat belt into seat belt buckle 1ofthe cor‐
re sponding seat.
Ve hicles with PRE-SAFE
®:If th e front seat belt
is not pulled tight across your body, the seat belt
adjustment may automatically apply a cer tain
tigh tening forc e. Do not hold the seat belt tightly
while it is adjusting. You can activate and deacti‐ va
te the seat belt adjustment function using the
multimedia sy stem.
Ve hicles with automatic front passenge r air‐
bag shu toff:
* NO
TEDeployment of the Emer gency
Te nsioning Device and side air bag when
th e front passenger seat is unoccupied
Ifth e seat belt tongue is engaged in the seat
belt buckle of the unoccupied front
passenger seat, the Emer gency Tensioning
Device and the side air bag may also deploy
in theev ent of an accident along with other
sy stems.
#Only one person should use each seat
belt at any one time.
Ve hicles without automatic front passenge r
airbag shu toff:
Occupant safe ty39

*NO
TEDeployment of the Emer gency
Te nsioning Device when the front
passenger seat is unoccupied
If th e seat belt tongue is engaged in the seat
belt buckle of the unoccupied front
passenger seat, the Emer gency Tensioning
Device may also depl oyintheev ent of an
accident along with other sy stems.
#Only one person should use each seat
belt at any one time.
Re leasing seat belts
#Press there lease button in the seat belt
buckle and guide the seat belt back with the
seat belt tongue.
Ac tivating or deactivating seat belt adjust‐
ment via the multimedia sy stem
Multimedia sy stem:
,Vehicle.î Vehicle Settings.Belt
Adjustment
#Ac tivate Oor deacti vate ª the function.
Seat belt warning function for the driver and
front passen ger
The ü seat belt warning lamp in the Instru‐
ment Display is a reminder that all vehicle occu‐
pants must weartheir seat belts cor rectly.
The ü seat belt warning lamp lights up for six
seconds af tereve ryengine start.
In addition, an acoustic warning tone may sound.
When the driver's and front passenger doors are
closed and the driver and front passenger ha ve
fast ened their seat belts, the seat belt warning
goes out. During a journe
y,the seat belt warning lights up
if:
RThe vehicle speed exceeds 15mp h
(25 km/h) and the driver's or front
passenger seat belt is not fastened.
RThe driver or front passenger unfas tens their
seat belt while theve hicle is in motion.
Airbags
Overview of airbags
1Driver's knee bag
2Driver's airbag
40
Occupant saf ety

3Front-passenger front airbag
4Front passenger knee airbag
5Head airbag
6Side airbag
The ins tallation location of an airbag is identified
by the AIRB AGsymbol.
When activated, an airbag can pr ovide additional
pr otection forth ere spective vehicle occupant.
Pot ential pr otection from each airbag:
AIRB AG Potential pr otection for
…
Knee airbag Thigh, knee and lo wer leg
Driver's airbag,
front passenger
front airbag Head and
ribcage
Head airbag Head
AIRB AG Potential pr otection for
…
Fr ont side airbag Thorax and pelvis
Side airbag in the
re ar passenger
compartment Head and
ribcage
The front passenger front airbag can only be
deplo yed in an accident if thePA SSENGER AIR
BA G OFF indicator lamp is off. If the front
passenger seat is occupied, make sure, bo th
before and during the journe y,that thest atus of
th e front passenger airbag is cor rect
(
→page 45) (→page 45).
* NO
TEImpo rtant points toremember if
th e front passenger seat is unoccupied
In an accident, the components of the
re stra int sy stem may deploy unnecessarily
on the front passenger side if:
RThere are heavy objects on the front
passenger seat.
RThe seat belt tongue is engaged in the
seat belt buckle of the front passenger
seat and the front passenger seat is
unoccupied.
#St ow objects in a suitable place.
#Only one person should use each seat
belt at any one time.
Protection bythe air bags
Depending on the accident situation, an air bag
may supplement the pr otection of fere dby a cor‐
re ctly fastened seat belt.
&
WARNING Risk of injury or death dueto
incor rect seat position
If yo ude viate from the cor rect seat position,
th e air bag cannot perform its intended pro‐
te ctive function and deployment may even
cause fur ther injuries.
Occupant saf ety 41

Toavo id hazardous situations, alw ays make
sure that all vehicle occupants:
RHa ve their seat belt fastened cor rectly,
including pregnant women.
RAre seated properly and that dis tance to
th e air bags is as large as possible.
RObser vethefo llowing information.
#Alw ays make sure that there are no
objects between the air bag and the
ve hicle occupant.
To avo idtherisks resulting from the deployment
of an air bag, each vehicle occupant must
obser vethefo llowing information:
RBefore starting your journe y,adjust your seat
co rrectly ;th e driver's seat and front
passenger seat should be mo ved as far back
as possible.
When doing so, alw ays obser vethe informa‐
tion on the cor rect driver's seat position
(
→page 84).
ROnly hold thesteering wheel bythesteering
wheel rim. This all owsthe air bag tobe fully
deplo yed.
RAlw ays lean against the seat backrest when
th eve hicle is in motion. Do not lean forw ards
or against the door or side windo w.You may
ot herwise be in the deployment area of the
air bags.
RAlw ayske ep your feet on thefloor. Do not
put your feet on the cockpit, forex ample.
Yo ur feet may otherwise be in the deploy‐
ment area of the air bag.
RIfch ildren are tr aveling in theve hicle,
obser vethe additional no tes (→page 50).
RAlw aysstow and secure objects cor rectl y.
Objects in theve hicle interior may pr event an air
bag from functioning cor rectl y.Each vehicle
occupant must alw ays make sure of thefo llow‐
ing:
RThere are no people, animals or objects
between theve hicle occupants and an air
bag.
RThere are no objects between the seat , door
and door pillar (B-pillar).
RThere are no hard objects, e.g. coat hangers,
hanging on the grab handles or coat hooks.
RThere are no accessory parts, such as cup
holders, attached totheve hicle within the
deployment area of an air bag, e.g. on doors,
side windo wsor side trim.
RThere are no heavy, sharp-edged or fragile
objects in the poc kets of your clo thing. Store
such objects in a suitable place.
Re duced airbag pr otection
&
WARNING Risk of injury from modifica‐
tions tothe airbag co ver
If yo u modify an airbag co ver or af fix objects
such assticke rs to it,the airbag can no lon‐
ge r function cor rectl y.
#Ne ver modify an airbag co ver and do
not af fix objects toit.
42
Occupant saf ety

RThe backrest ofthefo rw ard-facing child
re stra int sy stem must, as far as possible, be
re sting on the seat backrest of the front
passenger seat.
RThe child restra int sy stem must not touch the
ro of or be put under stra in by the head
re stra ints. Adjust the seat backrest inclina‐
tion and the head restra int setting accord‐
ing ly.
&
WARNING Risk of injury or death dueto
objects between the sitting sur face and
th ech ild restra int sy stem
Objects between the sitting sur face and the
ch ild restra int sy stem could af fect the func‐
tion of the automatic front passenger airbag
shutoff.
This could result in the front passenger air‐
bag not functioning as intended during an
accident.
#Do not place any objects between the
sitting sur face and thech ild restra int
sy stem.
#The entire base of thech ild restra int
sy stem must alw aysre st on the sitting
sur face of the front passenger seat.
#The backrest of thefo rw ard-facing child
re stra int sy stem must, as far as possi‐
ble, be resting on the seat backrest of
th e front passenger seat.
#Alw ays comply with thech ild restra int
sy stem manufacturer's ins tallation
instructions.
A person on the front passenger seat must
obser vethefo llowing information:
RFa sten seat belts cor rectly (→page 35).
RSit in an almost upright seat position with
their back against the seat backrest.
RSit with their feet resting on thefloor, if pos‐
sible.
Otherwise, the front passenger airbag may be
deactivated bymis take ,fo rex ample in thefo l‐
lowing situations:
RThe front passenge r transferstheir weight by
supporting themselves on a vehicle armrest.
RThe front passenger sits in such a wayth at
th eir weight is raised from the sitting sur‐
fa ce.
&
WARNING Risk of injury or death dueto
deactivated front passenger airbag
If th ePA SSENGER AIR BAG OFF indicator
lamp is lit, the front passenger airbag is disa‐
bled. It will not be deplo yed in theev ent of
an accident and cann otper form its intended
pr otective function.
A person in the front passenger seat could
th en, forex ample, come into con tact wi th
th eve hicle interior, especially if the person is
sitting too close tothe cockpit.
If th e front passenger seat is occupied,
alw ays ensure that:
RThe classification of the person in the
front passenger seat is cor rect and the
front passenger airbag is enabled or disa‐
bled in accordance with the person in the
front passenger seat.
44 Occupant saf ety

Status display
If th e front passenger seat is occupied, ensure,
bo th before and during the journe y,that thest a‐
tus of the front passenger front airbag is cor rect
fo rth e cur rent situation.
Af ter in stalling a rear wa rd-facing child
re stra int sy stem on the front passenger
seat: PASSENGER AIR BAG OFF must be lit con‐
tinuousl y.
&
WARNING Risk of injury or death from
using a rear wa rd-facing child restra int
sy stem when the front passenger air bag
is enabled
If yo u secure a child in a rear wa rd-facing
ch ild restra int sy stem on the front passenger
seat and thePA SSENGER AIR BAG OFF indi‐
cator lamp is off, the front passenger air bag
can deploy in theev ent of an accident.
The child could be stru ck bythe air bag.
Alw ays ensure that the front passenger air
bag is disabled. The PASSENGER AIR BAG
OFF indicator lamp must be lit.
NEVER use a rear wa rdfacing child restra int
on a seat pr otected byan ACTIVE FRONT AIR
BA G in front of it; DE ATH or SERIOUS INJU RY
to thech ild can occur.
When ins talling a child restra int sy stem on the
front passenger seat, alw ays obser vetheve hi‐
cle-specific information in this Operator's Man‐
ual (
→page 55), (→page 55).
Depending on thech ild restra int sy stem and the
st ature of thech ild, thePA SSENGER AIR BAG
OFF indicator lamp may be off. In this case, do
not ins tallth ere ar wa rd-facing child restra int
sy stem on the front passenger seat.
Ins tead, ins tallth ere ar wa rd-facing child
re stra int sy stem on a suitable rear seat.
Af ter in stalling a forw ard-facing child
re stra int sy stem on the front passenger
seat: depending on thech ild restra int sy stem
and thest ature of thech ild, PASSENGER AIR
BA G OFF may be lit continuously or be off.
Alw ays obser vethefo llowing information.
&
WARNING Risk of injury or death dueto
incor rect positioning of thefo rw ard-
fa cing child restra int sy stem
If yo u secure a child in a forw ard-facing child
re stra int sy stem on the front passenger seat
and you position the front passenger seat too
close tothe dashboard, in theev ent of an
accident, thech ild could:
Rcome into con tact wi thparts of theve hi‐
cle interior if thePA SSENGER AIR BAG
OFF indicator lamp is lit, forex ample
Rbe stru ck bythe airbag if thePA SSENGER
AIR BAG OFF indicator lamp is off
#Alw ays mo vethe front passenger seat
as far back as possible and fully retract
th e seat cushion length adjustment.
Alw ays make sure that the shoulder belt
st ra p is cor rectly routed from the seat
belt outlet on theve hicle tothe shoul‐
der belt guide on thech ild restra int sys‐
te m. The shoulder belt stra p must be
ro uted forw ards and down wards from
46
Occupant saf ety