To be classified correctly, the frontp
assenger
must sit:
R with the seat belt fastened correctly
R in ap osition that is as upright as possible
with their back against the seat backrest
R with their feet on the floor
If the front-passenger's weight is transferred
to another object in the vehicle (e.g. by lean-
ing on armrests), OCS may not be able to
approximate the occupant's weight category.
In order to determin ewhether or not the front
passenger has been detected, both the driver and the frontp assenger should observe the
00730074 indicator lamp.
If the front-passenger seat, the seat cover or the seat cushion are damaged, have the nec- essary repair work carried out at an author-
ized Mercedes-Benz Center.
For safety reasons, Mercedes-Benz recom-
mends that you only use seat accessories
that have been approved by Mercedes-Benz. G
WARNING
If the 00730074 indicator lamp lights up when
the front-passenger seat is occupied by an
adult or alarger person, ask the passenger to
reposition themselves on the seat so that the
00730074 indicator lamp goes out.
In the event of acollision, the air bag control
unit will not allow front-passenger fronta ir
bag and front-passenger knee bag deploy-
ment when the OCS has classified the front-
passenger occupant as weighing as much as
or less than atypical 12-month-old child in a
standard child restraint or if the front-
passenger seat is classified as being unoccu-
pied.
If OCS has detected that the frontp assenger
weighs the same as or less than atypical 12-
month-old child in astandard child restraint
system, the 00730074indicator lamp lights
up when the engine is started and remains lit. This indicates that the front-passenger front
air bag is deactivated.
If OCS determines that the front-passenger
seat is unoccupied, the 00730074indicator lamp lights up once the engine has been
started and remains lit. This shows that the
front-passenger fronta
ir bag and front-
passenger knee bag are deactivated.
If OCS determines that the frontp assenger
weighs more than atypical 12 montho ld child
in as tandard child restraint system and clas-
sifies this as asmall person (e.g. ateenager or
small adult), the 00730074indicator lamp
lights up for approximately 6seconds when
the engine is started. Dependin gonoccupant
weight sensor readings from the seat, it will
then remain illuminated or go out. If the
00730074 indicator lamp is illuminated, the
front-passenger fronta ir bag is deactivated.
With the 00730074 indicator lamp out, the
front-passenger fronta ir bag and front-
passenger knee bag are deactivated.
If OCS has determined that the front
passenger is an adult or medium sized person, the 00730074 indicator lamp lights up for
approximately 6seconds when the engine is
started and then goes out. This shows that the
front-passenger fronta ir bag and front-
passenger knee bag are activated.
If the 00730074 indicator lamp is illuminated,
the front-passenger fronta ir bag and the
front-passenger knee bag are deactivated and
are not deployed.
If the 00730074 indicator lamp does not light
up, the front-passenger air bag is enabled and
will be deployed:
R in the event of certain frontal impacts
R if the impact exceeds apreset deployment
threshold
R independently of the other air bags
If the front-passenger air bag is deployed, the
rate of inflation is influenced by:
R the rate of vehicle deceleration as assessed
by the air bag control unit
R the frontp assenger's weight category as
determined by the OCS
For further information, see "Air bag display
messages" (Y page 171). Occupant safety
43Safety Z
If the SmartKey has been removed from the
ignition lock or the Start/Stop button has
been set to position 0,the
00730074 indicator lamp 0043does not light
up. G
WARNING
If the red 0075SRS warning lamp in the
instrument cluster and the 00730074indica-
tor lamp lightu psimultaneously, the OCS is
malfunctioning. The front passenger front air
bag willbed eactivated in this case. Have the
system checked by qualifiedt echnicians as
soon as possible. Contact an authorized
Mercedes-Benz Center.
Only have the seat repaired or replaced at an
authorized Mercedes-Benz Center.
In order to ensure proper operation of the air
bag system and OCS:
R Sit with the seat belt properl yfastened in a
positio nthat is as upright as possible with
yourb ack against the seat backrest.
R When seated, apassenger shouldn ot posi-
tion him/hersel finsuchaway as to cause
the passenger's weight to be lifted from the seat cushio nasthis may resultint he OCS
being unabletoc orrectly approximate the
passenger's weight category.
R Reada nd observe all warnings in this chap-
ter. System self-test The
00730074 indicator lamp illuminates
when you:
R turn the SmartKey to position 1or 2in the
ignition lock
R press the Start/Stop button once or twice
If an adult occupant is properl ysitting on the
passenger seat and the OCS classifies the
occupant as an adult, the 00730074indicator
lamp illuminates and goes out again after
approximately 6seconds.
If the seat is not occupie dand the OCS clas-
sifies the front passenger seat as being unoc-
cupied, the 00730074indicator lamp willi llu-
minate and not go out. G
WARNING
If the 00730074indicator lamp does not illu-
minate, the system is not functioning. You
must contac tanauthorized Mercedes-Benz
Center befor eseatin gany child on the
passenger seat.
For more information, see "Problem swith the
Occupant Classification System"
(Y page 46). G
WARNING
Never place anything betwee nseat cushion
and child seat (e.g. apillow), sinc eitreduces
the effectiveness of the OCS. The underside
and rear side child restraint system must be
placed entirely on the seat cushio nand the
backrest of the front-passenge rseat back-
rest.
If necessary, adjust the tilt of the passenger
seat backrest.
An incorrectly mounted child seat could cause
injuries to the child in case of an accident,
instead of increasin gprotection for the child.
Follow the manufacturer' sinstructions for
installation of child restraint systems. Occupant safety
45Safety Z
Exiting in an emergency (Coup
eonly)
If th evehicle is lying on its roo fafter an acci-
dent, th ehinge fasteners of th egullwing
door sare released pyrotechnically. You will
hear abang if this is th ecase. Afte rthe fas-
teners have been released, th edoor sare
forced outwards .Simultaneously, th edoor
locks are unlocked. The 0075SRS warning
lamp light sup.
i The hinge fasteners are only released
when th econtrol unit recognize sthatc er-
tain condition shave been fulfilled, e.g.
when th evehicle is in astabilized position
on its roof.
The door scan then be moved from the
inside/outside by pullin gthe door handle. Seat belts
Important safety notes The use of infant or child restraint
sisrequired
by law in all 50 states, th eDistrict of Colum-
bia, th eU.S.terri tories and all Canadian prov-
inces.
Even wher ethisisn otthec ase, all vehicle
occupant sshoul dhave their seat belt sfas-
tene dwhen th evehicle is in motion.
i See "Children in th
evehicle"
(Y page 51) for further informatio non
infant sand childre ntravelin gint hevehicle
as well as on child restraint systems. G
WARNING
Always fasten your seat belt before driving off. Always mak esure your passenger is properly
restrained. You and your passenger should
always wear seat belts.
Failur etow ear and properl yfasten and posi-
tio ny our seat belt considerably increases
your risk of injuries and their likely severit yin
an accident.
If you are ever in an accident, your injuries
coul dbec onsiderably mor esevere if you have
no tfastene dyour seat belt correctly. If you do no
tfasten your seat belt ,you are muc hmore
likely to collide with part softhevehicle inter-
ior or be ejected from it. This may result in
serious or fatal injury.
In th esame crash, th epossibilit yofserious or
fatal injury is considerably reduced if you wear
your seat belt properly. The air bags can only offer th eintended protection if th eoccupants
are wearin gtheir seat belt sproperly. G
WARNING
Never ride in amoving vehicle with th eseat
backres tinanexcessively recline dposition as
this can be dangerous. You coul dslide under
th es eat belt in acollision .Ifyou slide unde rit,
th es eat belt would apply force at th eabdo-
men or neck. That coul dcaus eserious or even
fatal injuries .The seat backres tand seat belt
provide th ebest restraint when th eweare ris
in ap osition that is as upright as possible and
th es eat belt is properl ypositioned on the
body. G
WARNING
Never let mor epeopl eride in th evehicle than
there are seat belt savailable. Mak esure
everyone ridin ginthevehicle is correctly
restraine dwithaseparate seat belt .Never
use aseat belt for mor ethano neperson at a
time. G
WARNING
Damaged seat belt sorseat belt sthath ave
been subjected to stres sinanaccidentmust
be replaced and their anchoring points must
also be checked.
Only use seat belt swhichhave been approved
by Mercedes-Benz.
Do no tmakea ny modifications to th eseat
belts. This can lead to unintende dactivation
of th eETDsortot heir failur etoactivat ewhen
necessary.
Do no tbleac hord ye seat belt sasthism ay
severel yweaken them. In acrash they may
no tbea ble to provide adequat eprotection. Occupant safety
47Safety
Z
Fastening seat belts
G
WARNING
Children 12 years old and under must be
seated and properly secured in an appropri-
ately sized infant restraint, child restrain tsys-
tem, or booste rseat recommended for the
siz ea nd weigh tofthechild. Fo radditional
information ,see th e"Children in th evehicle"
section.
Ac hild's ris kofserious or fatal injurie sissig-
nificantl yincreased if th echild restraints are
no tproperly secured in th evehicl eand/o rthe
child is no tproperly secured in th echild
restraint. Example: Coupe
X Adjus tthe seat and mov ethe backrest to
an almost vertical position(Y page 85).
X Pull th eseat belt smoothly from belt sash
guide 0043.
X Without twisting it ,guide th eshoulder sec-
tion of th eseat belt across th emiddle of
your shoulder and th elap section across
your hips. X
Engage belt tongue 0044in buckle 0087.
X If necessary, pull upward sontheshoulder
section of th eseat belt to tighten th ebelt
across your body.
The seat belt on th efront-pa ssenger side is
equipped wit haspecial seat belt retracto rto
secure child restraint systems properly on the
front-passenger seat .For further information
on special seat belt retractors, see
(Y page 53).
Fo rm orei nformation about releasin gthe seat
belt wit hrelease button 0085,see "Releasing
seat belts" (Y page 49).
Releasing seat belts X
Press release button 0085(Ypage 49 )and
guide belt tongue 0044(Ypage 49 )back
towards belt sash guide 0043(Ypage 49).
! Mak
esure that th eseat belt is fully rolled
up. Otherwise, th eseat belt or belt tongue
will be trapped in th edoor or in th eseat
mechanism .This could damag ethe door,
th ed oor trim panel and th eseat belt .Dam-
aged seat belt scan no longer fulfill their
protective function and must be replaced.
Consult an authorize dMercedes-Benz
Center.
Bel twarning for th edriver and front
passenger Regardles
sofwhether th edriver' sand front-
passenger seat belt shave already been fas-
tened, the 0076seat belt warning lamp lights
up for six seconds eac htimet he engin eis
started. It then goes out once th edriver and
th ef ront passenger have fastene dtheir seat
belts.
If th edriver' sseat belt is no tfastene dwhen
th ee ngineiss tarted, an additional warning
tone will sound. The warning tone switches
off after approximately six seconds or once
th ed river' sseat belt is fastened. Occupant safety
49Safety Z
If after six seconds the driver or front
passenger have not fastened their seat belts
and the doors are closed:
R the 0076 seat belt warning lamp remains lit
as long as either the driver's or front-pas-
senger's seat belt is not fastened
R and if the vehicle speed exceeds 15 mph
(25 km/h )once, the 0076seat belt warning
lamp lights up. Additionally, awarning tone
sounds with increasing intensity for amax-
imum of 60 seconds or until the driver's and
front passenger's seat belts are fastened.
If the driver or front-passenger seat belt is
unfastened whilet he vehicle is in motion, the
0076 seat belt warning lamp lights up and a
warning tone sounds again.
The warning tone ceases even if the driver or
front-passenger seat belt has still not been
fastened after 60 seconds. The 0076seat belt
warning lamp stops flashing but remains lit.
After the vehicle comes to astandstill ,the
warning tone is reactivated and the 0076seat
belt warning lamp flashes again if the vehicle
speed exceeds 15 mph (25 km/h).
The 0076 seat belt warning lamp only goes
out if:
R both the driver and the front passenger
have fastened their seat belts.
or
R the vehicle is stationary and adoor is open.
i For more information on the
0076seat
belt warning lamp,s ee "Warning and indi-
cator lampsint he instrument cluster, seat
belt" (Y page 191).
Emergency Tensioning Devices, seat
beltf orce limiters The seat belts are equippedw
ith ETDs and
seat belt force limiters.
! If the front-passenger seat is unoccupied,
do not insert the belt tongue into the buckle of the front-passenger seat. This may oth-
erwisel eadtot he triggering of the Emer-
gency Tensioning Device in the event of an accident, which willt
hen need to be
replaced.
The ETDs tighten the seat belts in an accident,
pulling them close against the body.
The ETDs do not correct incorrect seat posi-
tions or incorrectly fastened seat belts.
The ETDs do not pullv ehicle occupants back
towards the backrest.
Seat belt force limiters, when activated, are
employed to help reduce the peak force
exerted by the seat belts on occupants during ac rash.
The seat belt force limiters are synchronized
with the front air bags,w hich take onapart of
the deceleration force. Thus, the force
exerted on the occupant is distributed over a
greater area.
When the ignition is switched on, the ETDs
cannot be triggered unless:
R the restraint systems are operational; see
"SRS warning lamp"( Ypage 37)
R the belt tongue is engage dinthe buckle on
each of the three-point seat belts
R the front-passenger seat is occupie dand
the belt tongue is engage dinthe buckle on
the front-passenger side
The ETDs are triggered depending on the type
and severity of an accident:
R in the event of ahead-on or rear-end colli-
sion, if the vehicle decelerates or acceler-
ates rapidly in alongitudinal direction dur-
ing the initial stages of the impact
R in the event of aside impact, if the vehicle
is subjected to high latera lacceleration/
deceleration
R Coupe: in certain situations if the vehicle
rolls over, and the system determines that
it can provide additional protection
R Roadster: if the vehicle rolls over
If the Emergency Tensioning Devices (ETDs)
are triggered, you willh earabang, and asmall
amount of smoke may also be released. Only
in rare cases willt he bang affect yourh earing.
The smoke that is released generally does not 50
Occupant safetySafety
constitute
ahealth hazard .The 0075 SRS
warning lamp lights up. G
WARNING
Pyrotechnic ETDs that were activate dmustbe
replaced.
For your safety ,whend isposing of the pyro-
techni cETDs always follow ou rsafety instruc-
tions .These are available at any authorized
Mercedes-Benz Center. Child restraint systems
Childre
ninthe vehicle
Important safety notes G
WARNING
Childre n12years old and under mus tbe
seated and properly secured in an appropriate
infant restraint, toddle rrestraint, or booster
sea trecommended for the size and weigh tof
the child.
The infant or chil drestraint mus tbep roperly
secured with the vehicle's sea tbeltf ully in
accordance with the chil dseatm anufactur-
er's instructions.
Occupants, especially children, shoul dalways
sit as upright as possible ,wearthe sea tbelt
properly and us eanappropriately size dinfant
restraint, toddle rrestraint, or booster seat
recommended for the size and weigh tofthe
child.
Childre ncan be kille dorseriously injured by
an inflating ai rbag.N ote the following impor-
tant information:
R You rvehicle is equipped with ai rbag tech-
nology designe dtodeactivate the front-
passenger front ai rbag in your vehicle
whe nthe system senses the weigh tofa
typica l12-month-old chil dorlessa long
with the weigh tofastandard appropriate
chil drestraint on the front-passenger seat.
R Ac hildinar ear-facing chil drestraint on the
front-passenger sea twillbes eriously
injured or eve nkilledift he front-passenger front ai
rbag inflate sinac ollision which
could occu runder some circumstances,
eve nwitht he ai rbag technolog yinstalled in
your vehicle.
R If yo uinstall arear-facing chil drestraint on
the front-passenger seat, make sure the
00730074 indicator lamp is illuminated,
indicating that the front-passenger front air ba gisd eactivated. Should the 00730074
indicator lamp not illuminate or go ou twhile
the restraint is installed, please check
installation. Periodicall ycheck the
00730074 indicator lamp while driving to
make sure the 00730074indicator lamp is
illuminated. If the 00730074indicator lamp
goe soutor remains out, do not transpor ta
chil dont he front-passenger sea tuntilthe
system ha sbeenr epaired.
Ac hildinar ear-facing chil drestraint on the
front-passenger sea twillbes eriously
injured or eve nkilledift he front-passenger
front ai rbag inflates.
R If yo uplace achildinaf orward-facing child
restraint on the front-passenger seat:
- move the sea tasfar back as possible
- uset he proper chil drestraint recom-
mended for the age, size and weigh tof
the child
- secure chil drestraint with the vehicle's
sea tbelta ccording to the chil dseatm an-
ufacturer's instructions
R For childre nlarge rthan atypica l12-month-
old child, the front-passenger front ai rbag
may or may not be activated. G
WARNING
Infants and small childre nshoul dneve rshare
as eatb eltw itha nother occupant. In the event
of an accident, they could be crushed
between the occupant and sea tbelt.
Ac hild's ris kofseriousorfatalinjurie sissig-
nificantl yincreased if the chil drestraints are
not properly secured in the vehicle and/or the chil disn ot properly secured in the child
restraint. Child restraint systems
51Safety
Z
Children that are to
olarge for achild restraint
must travel in seat susingn orma lseat belts.
Positio nthe shoulder belt across th echest
and shoulder ,not thef aceorn eck.Abooster
seat may be necessary to achieve proper seat
belt positionin gfor children ove r41lbs
(18 kg )until they reac haheight wher ealap/
shoulder belt fit sproperly without abooster
seat.
When th echild restraint is no tinuse, remove
it from th evehicle or secure it wit hthe seat
belt to preven tthe child restraint from becom-
ing aprojectile in th eevent of an accident. G
WARNING
When leaving th evehicle ,always remove the
SmartKey from th eignition lock. Always take
th eS martKey wit hyou and loc kthe vehicle.
Do no tleave children unattende dinthevehi-
cle ,eve nift heya re secured in achild restraint
system, or wit haccess to an unlocked vehicle.
Ac hild's unsupervised access to avehicle
could result in an acciden tand/or serious
personal injury. The children could:
R injure themselve sonpartsoft hevehicle
R be seriously or fatally injured through
excessiv eexposur etoe xtrem eheat or cold
R injure themselve sorcauseana cciden twith
vehicle equipmen ttha tc an be operated
eve nift heSmartKey is remove dfromt he
ignition loc korremove dfromt hevehicle,
suc hass eat adjustment, steering wheel
adjustment, or th ememory function
If children open adoor ,the yc ould injure other
person sorget out of th evehicle and injure
themselve sorbeinjured by followin gtraffic.
Do no texpose th echild restraint system to
direct sunlight .The child restraint system's
metal parts, for example ,cou ld become very
hot ,and th echild could be burned on these
parts. G
WARNING
Do no tcarry heav yorhard object sinthe
passenger compartmen tunless they are
firmly secured in place. Unsecured or improperly positione
dcargo
increases achild's ris kofinjury in th eevent
of:
R stron gbraking maneuvers
R sudde nchanges of direction
R an accident
If an infant or child is traveling in th evehicle:
X Secure th echild wit hachild or infant seat
restraint system appropriat etotheage and
weigh tofthechild.
X Mak esure that th einfant or child is prop-
erly secured at all times while th evehicle is
in motion.
Mercedes-Ben zrecommends that you always
properl ysecure all infant sand childre nwitha
child or infant seat restraint system for the
trip.
The use of seat belt sand infant and child
restraint systems is required by law in:
R all 50 states
R theU .S.t erri tories
R theD istrict of Columbia
R all Canadian provinces
Infants and childre nmust always be seated in
an appropriat einfant or child restraint system
recommended for th esizea nd weigh tofthe
child. The infant or child restraint system
must be properl ysecured wit hathree-point
seat belt in accordanc ewitht he manufactur-
er' sinstructions.
All infant or child restraint systems must meet
th ef ollowin gstandards:
R U.S. Federal Motor Vehicle Safet yStand-
ards 21 3and 225
R Canadian Motor Vehicle Safet yStandards
21 3a nd 210.2
Confirmation that th echild restraint system
correspond stothestandards can be found
on an instruction label on th echild restraint
system. This confirmatio ncan also be found
in th einstallatio ninstruction sthata re
included wit hthe child restraint system. 52
Child restraint systemsSafety
Ensure that:
R To pT ethe rh ook 0087is hooke dinto Top
Tethe ranchorage 0044as shown.
R To pT ethe rb elt 0085 is not twisted.
When To pTethe rh ook 0087is connected ,the
child restraint syste mcan be secured.
X Install the child restraint system.
X Tension To pTethe rb elt 0085.C om plyw ith
the manufacturer's installatio ninstruc-
tions when doing so.
Th ec hild restraint syste mwithT op Tether
belt 0085hasb eenr emoved:
X Slide cover 0043onto To pTethe ra nchor-
age 0044. Driving safety systems
Overvie
wofdrivingsafety systems
In thi ssection, yo uwillf in di nformation about
the following driving safety systems:
R ABS ( Anti-lock Braking System)
R BAS ( Brake Assist Sys tem)
R ESP ®
(Ele ctronic Stability Program)
R EBD ( Electronic Brake force Distribution)
R ADAPTIVE BRAKE Important safety notes
If yo ufailtoa dapt your driving style or
become distracted ,the driving safety sys-
tems can neithe rreduce the risk of accident
nor override the laws of physics .Driving
safety systems ar emerel yaidsd esig nedto
assist driving. Yo uareresponsibl efor the dis-
tance to the vehicl einfront, for vehicl espeed
and for braking in good time. Alway sadapt
your driving style to suit the prevailing road
and weather conditions and maintain asafe
distance fro mthe vehicl einfront. Drive care-
fully.
Th ed riving safety systems describe donly
work as effectivel yaspossibl ew hent here is
adequate contact between the tires and the roa
dsurface. Please pa yspecial attentio nto
the note sontires,recommended minimum
tir et rea ddepths, etc. (Y page 250).
i In wintry driving conditions
,alway suse
winter tires (M+S tires )and if necessary,
sno wchains .Onlyint hisw aywill the driv-
ing safety systems describe dinthiss ection
work as effectivel yaspossible. ABS (Anti-lock Braking System)
Important safety notes i
Observe the "Important safety notes" sec-
tio n(Ypage 54).
ABS regulate sbrake pressure in such away
tha tthe wheels do not lock when yo ubrake.
This allows yo utocontinue steering the vehi-
cle when braking. G
WARNING
If ABS is faulty, the wheels could lock when
braking .The steerability and braking charac-
teristics ma ybeseverel yimpaired. Addition-
ally ,fur the rdriving safety systems ar edeac-
tivated. There is an increase ddangerofs kid-
ding and accidents.
Drive on carefully. Have ABS checked imme-
diately at aquali fied specialis tworkshop.
When ABS is malfunctioning ,other systems,
including driving safety systems, will also
become inoperative. Observe the information on the ABS warning lamp (Y page 192)and
displa ymessage swhich ma ybeshown in the
instrument cluste r(Ypage 165).
ABS works fro maspeed of about
5m ph(8 km/h) upwards ,regardles sofroad-
surface conditions .ABS works on slippery
surfaces ,evenify ouonlybrake gently.
The 0025 warning lamp in the instrument
cluste rlight supw hent he ignition is switched
on. It goes ou twhent he engine is running. 54
Driving safet
ysystemsSafety