2018 MERCEDES-BENZ SL CLASS belt

Fastening seat belts Observ et he safet yn otes on th es eat belt
( Y
page 40 )a nd the notes on correct us eofs eat
belts ( Y
page 41).
Basic illustration X
Adjust the sea t( Y
page 84).
The sea tb ac kres tm us tbeinana lm ost
upright position. X
Pull the sea tb el ts moothl yo ut of sea tb el t
guide

If the driver or front passenger unfasten their
seat belts during the journey, the seat belt warn-
ing is activated again.
Air bags
Introduction The installation point of an air bag can be rec-
ognized by the AIRBAG marking.
An air bag complements the correctly fastened
seat belt. It is no substitute for the seat belt. The
air bag provide sa dditional protection in appli-
cable accident situations.
Not all air bags are deployed in an accident. The
different air bag systems function independ-
ently from one another ( Y
page 50).
However, no system available today can com-
pletel ye liminate injuries and fatalities.
It is also not possible to rule out ar isk of injury
cause dbyana ir bag due to the high speed at
which the air bag must be deployed.
Important safety notes
G WARNING
If you do not sit in the correct seat position,
the air bag cannot protect as intended and
could even cause additional injury when
deployed .T his poses an increased risk of
injury or even fatal injury.
To avoid hazardous situations, always make
sure that all of the vehicle's occupants: R
have fastened their seat belts correctly,
including pregnant women R
are sitting correctly and maintain the great-
est possible distance to the air bags R
follow the following instructions
Alway sm ake sure that there are no objects
between the air bag and the vehicle's occu-
pants. R
Adjust the seats properl yb efore beginning
you rj ourney. Alway sm ake sure that the seat
is in an almos tu pright position. The center of the head restraint must support the head at
abou te ye level. R
Move the driver's and front-passenger seats
as far back as possible. The driver's seat posi-
tion must allow the vehicle to be driven safely. R
Only hold the steering wheel on the outside.
This allows the air bag to be full yd eployed.R
Alway sl ea na gainst the backrest whil ed riv-
ing. Do not lea nf orward or lea na gainst the
door or side window .Y ou may otherwise be in
the deployment area of the air bags. R
Alway sk eep you rf eet in the footwell in front
of the seat. Do not put you rf eet on the dash-
board ,f or example .Y our feet may otherwise
be in the deployment area of the air bag. R
For this reason, always secure persons less
than 5f t( 1.5 0m )t all in suitable restraint sys-
tems. Up to this height, the seat belt cannot
be worn correctly.
If ac hil dist raveling in your vehicle, also
observe the following notes: R
Alway ss ecure childre nu nder twelve years of
age and less than 5f t( 1.50 m) tal lins ui table
child restraint systems. R
Onl ys ec ur eac hild in ar earward-facing child
restraint syste mont h e front-passenge rs e a t
when the front-passenge rf ront ai rb ag is
deactivated .Ift he PASSENGER AIR BAG OFF
indicator lamp is permanentl yl it ,t he front-
passenge rf ront ai rb ag is deactivated
( Y
page 39). R
Alway so bser ve the instructions and safety
note sont he "Occupant Classification System
(OCS) "( Y
page 45) and on "Children in the
vehicle" ( Y
page 53 )i na ddit io ntot he child
restraint syste mm an ufacturer's installation
and operating instructions.
Objects in the vehicle interior may prevent
an air bag fro mf unctionin gc or rectly. Before
startin gy ou rj ourney and to avoi dr isks resulting
fro mt he spee doft he ai rb ag as it deploys, make
sure that: R
there ar enop eople, animals or objects
between the vehicl eo ccupants and an ai rb agR
there ar enoo bj ects between the seat, door
and B-pillar R
no accessories, such as cup holders, are
attache dtot he vehicl ew it hi nt he deploymentOccupant safety 43
Safety Z

The system does not deactivate: R
the side impact air bag R
the headbag R
the Emergency Tensionin gD evices
Requirements To be classified correctly, the front passenger
must sit: R
with the seat belt fastened correctly R
in an almost upright position with their back
against the seat backrest R
with their feet restin gont he floor, if possible
If the front passenger does not observe these
conditions, OCS may produce af alse classifica-
tion, e.g. because the front passenger: R
transfers their weight by supporting them-
selves on av ehicle armrestR
sits in such aw ay that their weight is raised
from the seat cushion
If you install ac hild restraint system on the
front-passenger seat, be sure to observe the
correc tp ositionin goft he child restraint system.
Never place object su nder or behind the child
restraint system, e.g. ac ushion. The entir eb ase
of the child restraint system must alway sr est on
the seat cushion of the front-passenger seat.
The backrest of the forward-facing child
restraint system must lie as flat as possible
against the backrest of the front-passenger
seat.
The child restraint system must not touch the
roof or be subjected to al oad by the head
restraint. Adjust the angle of the seat backrest
and the head restraint position accordingly.
Only then can OCS be guaranteed to function
correctly. Always observe the child restraint sys-
tem manufacturer's installation and operating
instructions. Occupant Classification System opera-
tion (OCS)
C
PASSENGER AIR BAG ON indicator lamp D
PASSENGER AIR BAG OFF indicator lamp
The indicator lamps inform you whether the
front-passenger front air bag is deactivated or
enabled. X
Press the Start/Stop button once or twice, or
turn the SmartKey to position G or H in the
ignition lock.
The system carries out self-diagnostics.
The PASSENGER AIR BAG OFF and PASSENGER
AIR BAG ON indicator lamps must light up simul-
taneously for approximately six seconds.
The indicator lamps display the status of the
front-passenger front air bag. R
PASSENGER AIR BAG ON lights up for 60 sec-
onds, subsequently both indicator lamps are
off (PASSENGER AIR BAG ON and OFF): the
front-passenger front air bag is able to deploy
in the event of an accident. R
PASSENGER AIR BAG OFF lights up: the front-
passenger front air bag is deactivated. It will
then not be deployed in the event of an acci-
dent.
If the PASSENGER AIR BAG ON indicator lamp is
off, only the PASSENGER AIR BAG OFF indicator
lamp shows the status of the front-passenger
front air bag. The PASSENGER AIR BAG OFF
indicator lamp may be lit continuously or be off.
If the status of the front-passenger front air bag
changes while the vehicle is in motion ,ana ir bag
display message appears in the instrument clus-
ter ( Y
page 187). When the front-passenger
seat is occupied, alway sp ay attention to the
PASSENGER AIR BAG OFF indicator lamp. Be
aware of the status of the front-passenger front
air bag both before and during the journey.46
Occupant safety
Safety

R
The front-passenger seat is occupied by a
person of smaller stature (e.g. at eenager or
small adult), the PASSENGER AIR BAG OFF
indicator lamp lights up and remains lit after
the system self-test depending on the result
of the classification or, alternatively, goes out. -
If the PASSENGER AIR BAG OFF indicator
lamp is off, move the front-passenger seat
as far back as possible. -
If the PASSENGER AIR BAG OFF indicator
lamp is lit, ap erson of smaller stature
should not use the front-passenger seat. R
The front-passenger seat is occupied by an
adult or ap erson of adult stature, the
PASSENGER AIR BAG OFF indicator lamp
goes out after the system self-test. This indi-
cates that the front-passenger front air bag is
activated.
If children are traveling in the vehicle, be sure to
observe the notes on "Children in the vehicle"
( Y
page 53).
When the Occupant Classification System
(OCS) is malfunctioning, the red u restraint
system warning lamp on the instrument cluster
and the PASSENGER AIR BAG OFF indicator
lamp light up simultaneously. The front-
passenger front air bag is deactivated in this
case and does not deploy during an accident.
Have the Occupant Classification System (OCS)
checked and repaired immediately at aq ualified
specialist workshop. Mercedes-Benz recom-
mends that you use an authorized Mercedes-
Benz Center for this purpose.
If the front-passenger seat, the seat cover or the
seat cushion are damaged, have the necessary
repair work carried out at aq ualified specialist
workshop. Mercedes-Benz recommends that
you use an authorized Mercedes-Benz Center
for this purpose.
For safety reasons, Mercedes-Benz recom-
mends that you only use seat accessories that
have been approved by Mercedes-Benz.
If the driver's air bag deploys, this does not
mean that the front-passenger front air bag will
also deploy. The Occupant Classification Sys-
tem (OCS) categorizes the occupant on the
front-passenger seat. Dependin gont hat result,
the front-passenger front air bag is either ena-
bled or deactivated. System self-test
G DANGER
If both the PASSENGER AIR BAG OFF and
PASSENGER AIR BAG ON indicator lamps do
not light up during the system self-test, the
system is malfunctioning. The front-
passenger front air bag might be triggered
unintentionally or might not be triggered at all
in the event of an accident with high deceler-
ation. This poses an increased risk of injury or
even fatal injury.
In this case the front-passenger seat may not
be used. Do not install ac hild restraint system
on the front-passenger seat. Have the Occu-
pant Classification System (OCS) checked
and repaired immediately at aq ualified spe-
cialist workshop.
G WARNING
If the PASSENGER AIR BAG OFF indicator
lamp remains lit after the system self-test, the
front-passenger front air bag is disabled. It will
not be deployed in the event of an accident .I n
this case, the front-passenger front air bag
cannot perform its intended protective func-
tion, e.g. when ap erson is seated in the front-
passenger seat.
That person could, for example, come into
contact with the vehicle's interior, especially
if the person is sittin gt oo close to the dash-
board. This poses an increased risk of injury or
even fatal injury.
When the front-passenger seat is occupied,
alway se nsure that: R
the classification of the person in the front-
passenger seat is correc ta nd the front-
passenger front air bag is enabled or disa-
bled in accordanc ew ith the person in the
front-passenger seat R
the person is seated properly with ac or-
rectly fastened seatbelt R
the front-passenger seat has been moved
as far back as possible
If the PASSENGER AIR BAG OFF indicator
lamp remains lit when it should not ,t he front-48
Occupant safety
Safety

Problem
Possible causes/consequences and P Solutions
The PASSENGER AIR
BAG OFF indicator lamp
lights up and remains lit,
even though the front-
passenger seat is occu-
pied by an adult or ap er-
son of as tature corre-
sponding to that of an
adult. The classification of the person on the front-passenger seat is incor-
rect. X
Make sure the condition sf or ac orrect classification of the person
on the front-passenger seat are met ( Y
page 46).X
If the PASSENGER AIR BAG OFF indicator lamp remains lit, the front-
passenger seat may not be used. X
Have OCS checked as soon as possible at an authorized Mercedes-
Benz Center.
The PASSENGER AIR
BAG OFF indicator lamp
does not light up and/or
does not stay on.
The front-passenger seat
is: R
unoccupied R
occupied by the
weight of ac hild up to
twelve months old in a
child restraint system OCS is malfunctioning. X
Make sure there is nothin gb etween the seat cushion and the child
seat. X
Make sure that the entire base of the child restraint system rests on
the seat cushion of the front-passenger seat. The backrest of the
forward-facing child restraint system must lie as flat as possible
against the backrest of the front-passenger seat. If necessary,
adjust the position of the front-passenger seat. X
When installing the child restraint system, make sure that the seat
belt is tight. Do not pull the seat belt tight using the front-passenger
seat adjustment .T his could result in the seat belt and the child
restraint system being pulled too tightly. X
Check for correct installation of the child restraint system.
Make sure that the head restraint does not apply al oad to the child
restraint system. If necessary, adjust the head restraint accord-
ingly. X
Make sure that no object sa re applying additional weight onto the
seat. X
If the PASSENGER AIR BAG OFF indicator lamp remains off and/or
the PASSENGER AIR BAG ON indicator lamp lights up, do not install
ac hild restraint system on the front-passenger seat. X
Have OCS checked as soon as possible at an authorized Mercedes-
Benz Center.
Deployment of Emergency Tensioning
Devices and air bags
Important safety notes
G WARNING
The air bag parts are hot after an air bag has
been deployed. There is ar isk of injury.
Do not touch the air bag parts. Have a
deploye da ir bag replaced at aq ualified spe-
cialist workshop as soon as possible. G WARNING
Ad eploye da ir bag no longer offers any pro-
tection and cannot provide the intended pro-
tection in an accident. There is an increased
risk of injury.
Have the vehicle towed to aq ualified special-
ist workshop in order to have ad eploye da ir
bag replaced.
For your own safety and that of your front
passenger, it is important that you have
deploye da ir bags replaced and faulty air bags
repaired. This will help to make sure the air bags50
Occupant safety
Safety

are affected and th er at eofd eceleratio nisn ot
high .C onversely, air bags may be deployed even
though th ev ehicle suffers only minor deforma-
tion. This is th ec as ei f, for example, ver yr igid
vehicle part ss uc hasl ongitudinal body mem-
bers are hit ,a nd sufficient deceleratio no ccurs
as ar esult.
If th er estraint system control unit detect sas ide
impac torift he vehicle roll so ver, th ea pplicable
component soft he restraint system are
deployed independently of each other depend-
ing on th ea pparent type of accident.R
Sid ei mpac ta ir bag on th es ide of impact,
independently of th eE me rgenc yT ensioning
Devic ea nd th eu se of th es eat belt on the
driver' ss eat
The side impac ta ir bag on th ef ront -
passenger side deploys unde rt he following
conditions: -
th eO CS system detect st ha tt he front-
passenger seat is occupied or -
th es eat belt buckle tongue is engaged in
th eb elt buckle of th ef ront-pa ssenger seatR
Head bag on th es ide of impact, independ-
ently of th eu se of th es eat belt and inde-
pendently of whether th ef ront-pa ssenger
seat is occupied R
Emergenc yT ensioning Devices, if th es ystem
determine st ha td eploymen tc an offer addi-
tional protection in this situation R
Head bags on th ed river' sa nd front-
passenger side in certain situations when the
vehicle roll so ve r, if t h es ystem
determines
that deploymen tc an offer additional protec-
tio ntot ha tp rovided by th es eat belt
i Not all air bags are deployed in an accident.
The differen ta ir bag systems work independ-
ently of each other.
How th ea ir bag system work sisd etermined
by th es everit yoft he acciden td etected,
especially th ev ehicle deceleratio nora ccel-
eration and th ea pparent type of accident:R
Frontal collision R
Sid ei mpactR
Rollover NECK-PR Oh ea dr estraints
Important safety notes
G WARNING
The function of th eh ead restraint may be
impaired if you: R
attach object ss uc hasc oat hanger stot he
head restraints, for example R
use head restraint covers
If you do so, th eh ead restraint sc anno tf ulfill
their intended protective function in th ee vent
of an accident. In addition ,o bject sa ttached
to th eh ead restraint sc oul de ndanger other
vehicle occupants. Ther eisani ncreased risk
of injury.
Do no ta ttach any object stot he head
restraint sa nd do no tu se head restraint cov-
ers.
Method of operation NECK-PRO head restraint sr educ et he likelihood
of head and chest injuries .T he NECK-PRO head
restraint sont he driver' sa nd front-passenger
seat sa re moved forwards and upwards in the
even tofar ear-en dc ollision of ac ertain severity.
This provides bette rh ead support.
If th eN EC K-PRO head restraint sh ave been trig-
gered in an accident, you must reset th eN EC K-
PRO head restraint sont he driver’s and front-
passenger seat ( Y
page 53) .O th erwise, the
additional protection will no tbea vailabl eint he
even tofa nother rear-en dc ollision .Y ou can rec-
ognize when NECK-PRO head restraint sh ave
been triggered by th ef ac tt ha tt he yh ave moved
forwards and can no longer be adjusted.
Mercedes-Ben zr ecommend st ha ty ou have the
NECK-PRO head restraint sc he cked for func-
tionalit yataq ualified specialist workshop after
ar ear-en dc ollision.52
Occupant safety
Safety

G WARNING
If you leave children unsupervised in the vehi-
cle, they coul ds et it in motion by, for example:R
release the parking brake. R
shift the automatic transmission out of the
parking position P .R
start the engine.
In addition, they may operate vehicl ee quip-
ment and become trapped. There is ar isk of
an accident and injury.
When leaving the vehicle, alway st ake the
SmartKey with you and lock the vehicle. Never
leave children unsupervised in the vehicle.
G WARNING
If persons, particularl yc hildren are subjected
to prolonged exposure to extreme hea to r
cold, there is ar isk of injury ,p ossibly even
fatal .N ever leave children unattended in the
vehicle.
G WARNING
If the child restraint system is subjected to
direct sunlight, parts may get very hot. Chil-
dren may burn themselves on these parts,
particularl yont he metal parts of the child
restraint system. There is ar isk of injury.
If you leave the vehicle, taking the child with
you ,a lway se nsure that the child restraint
system is not expose dtod irect sunlight. Pro-
tect it with ab lanket, for example. If the child
restraint system has been expose dtod irect
sunlight, let it cool dow nb efore securing the
child in it. Never leave children unattended in
the vehicle.
Always ensure that all vehicl eo ccupants have
their seat belts fastened correctly and are sitting
properly .P articular attention must be pai dt o
children.
Observe the safety notes on the seat belt
( Y
pag e4 0) and the notes on correct use of seat
belts ( Y
pag e4 1).
Ab ooster seat may be necessary to achieve
prope rs eat bel tp ositioning for children over
40 lbs (18 kg )u ntil they reach ah eight where a three-point seat bel tc an be properly fastened
without ab ooster seat.
Special seatbelt retractor
G WARNING
If the seat bel tisr eleased while driving, the
child restraint system wil lnol onger be
secure dp roperly .T he special seat bel tr etrac-
tor is disable da nd the inertia real draw sina
portion of the seat belt. The seat bel tc annot
be immediatel yr efastened. There is an
increased risk of injury ,p ossibly even fatal.
Stop the vehicl ei mmediately, paying atten-
tion to road and traffic conditions. Reactivate
the special seat bel tr etractor and secure the
child restraint system properly.
The seat bel tont he front-passenger's side is
equipped with as pecial seat bel tr etractor.
When activated, the special seat bel tr etractor
ensure st hat the seat bel tc annot slacken once
the child seat is secured.
Installing ac hild restraint system: X
Make sure you observe the child restraint
system manufacturer's installation instruc-
tions. X
Pul lt he seat bel ts moothly out of the belt
loop. X
Engage seat bel tt ongue in bel tb uckle.
Activating the special seat bel tr etractor:X
Pul lt he seat bel to ut full ya nd let the inertia
reel retract it again.
Whil et he seat bel tisr etracting, you should
hear ar atcheting sound .T he special seat belt
retractor is enabled. X
Push the child restraint system dow nsot hat
the seat bel tist ight and does not loosen.
Removing the child restraint system and deac-
tivating the special seat bel tr etractor:X
Make sure you observe the child restraint
system manufacturer's installation instruc-
tions. X
Press the release button of the seat belt
buckle ,h old the bel tt ongue and guide it back
toward st he bel tl oop.
The special seat bel tr etractor is deactivated.54
Children in the vehicle
Safety

Child restraint system The use of seat belt sa nd child restraint systems
is required by law in: R
all 50 states R
th eU .S .t erri toriesR
th eD istrict of ColumbiaR
all Canadian provinces
You can obtain further informatio na bout the
correc tc hi ld restraint system from any author-
ize dM ercedes-Ben zC enter.
G WARNING
If th ec hi ld restraint system is installed incor-
rectly on as uitable seat ,itc anno tp rotect as
intended. The child canno tt he nber estrained
in th ee vent of an accident, heav yb raking or
sudde nc ha nges of direction .T her eisa n
increased ris kofi njury, possibly eve nf atal.
Mak es ure that you observ et he child restraint
system manufacturer' si nstallatio ni nstruc-
tions and th en otes on use. Pleas ee ns ure,
that th eb ase of th ec hi ld restraint system is
always restin gc ompletely on th es eat cush-
ion .N ever plac eo bjects, e.g .c ushions, under
or behin dt he child restraint system. Only use
child restraint systems wit ht he original cover
designe df or them. Only replace damaged
covers wit hg enuine covers.
G WARNING
If th ec hi ld restraint system is installed incor-
rectly or is no ts ecured, it can com el oos ei n
th ee vent of an accident, heav yb raking or a
sudde nc ha ng eind irection .T he child
restraint system coul dbet hr own about ,s tr ik-
ing vehicle occupants .T her eisani ncreased
ris kofi njury, possibly eve nf atal.
Always install child restraint systems prop-
erly, eve nift he ya re no tb ein gu sed. Make
sure that you observ et he child restraint sys-
te mm anufacturer' si nstallatio ni nstructions.
Further informatio nons to win go bjects, luggage
and loads securely can be foun du nde r“ Stowi ng
options/stowage compartments”
( Y
page 219). G WARNING
Child restraint systems or their securin gs ys-
tems whic hh ave been damaged or subjected
to al oad in an acciden tc an no longer protect
as intended. The child canno tt he nb e
restraine dint he event of an accident, heavy
braking or sudde nc ha nges of direction .T here
is an increased ris kofi njury, possibly even
fatal.
Replac ec hi ld restraint systems whic hh ave
been damaged or subjected to al oad in an
acciden tass oon as possible. Hav et he secur-
ing systems on th ec hi ld restraint system
checked at aq ualified specialist workshop,
before you install ac hi ld restraint system
again.
The securin gs ystem of child restraint systems is
th es eat belt system.
i If you install ac hi ld restraint system on the
front-passenger seat ,bes ure to observ et he
instruction sa nd safety note sont he "Occu-
pan tC lassificatio nS yste m( OCS)"
( Y
page 45). Ther ey ou will also fin di nforma-
tio nond eactivatin gt he front-passenger front
air bag.
All child restraint systems must mee tt he fol-
lowin gs ta ndards: R
U.S. Federal Motor Vehicle Safet yS ta ndards
21 3a nd 225 R
Canadian Motor Vehicle Safet yS ta ndards
21 3a nd 210.2
Confirmation that th ec hi ld restraint system cor-
responds to th es ta ndards can be foun dona n
instruction label on th ec hi ld restraint system.
This confir mation can also be foun di nt he instal-
lation instruction st ha ta re included wit ht he
child restraint system.
Observ et he warning labels in th ev ehicle inte-
rior and on th ec hi ld restraint system.
Child restraint system on th ef ro nt-
passenge rs eat
General notes
If you install ac hi ld restraint system on the
front-passenger seat ,a lways observ et heChildren in th ev ehicle 55
Safety Z