2012 MERCEDES-BENZ M-Class deactivate airbag

G
WARNING If
the 45 indicatorlamp illumina tes
when anadu ltor someone largerthan asmal l
indivi dualis in the front passenger seat,have
the front passenger repositionhimse lfor
hersel fint he seat until the45
indicator lampgoesout.
In the event ofacollision, theairbag cont rol
unit willnotallow frontpassenger frontairbag
deploy mentwhen theOCS hasclassified the
front passenger seatoccupant asweighing as
much asorless than atypical 12-month-old
child inastandard childrestraint orifthe front
passenger seatisclassified asbeing empty.
When theOCS senses thatthefront
passenger seatoccupant isclassified as
being uptoor less than theweight ofatypical
12-m onth-oldchild inastandard child
restraint ,the 45 indicatorlampwill
illu minate whentheengine isstarted and
remain illuminated. Thisindicates thatthe
front passenger frontairbag isdeactivated.
When theOCS senses thatthefront
passenger seatisclassified asbeing empty,
the 45 indicatorlampwillilluminate
when theengine isstarted andremain
illu minated. Thisindicates thatthefront
passenger frontairbag isdeactivated.
When theOCS senses thatthefront
passenger seatoccupant isclassified as
being heavier thantheweight ofatypical 12-
mont h-old childseated inas tand ardchi ld
res traint oras being asma llind ividu al(such
as ayo ung teenag eror as mall adult),the
45 indicatorlamp willill umina tefor
app roximatel y6s econ dswhen theengine is
start ed.Depen dingonoccupant weight
sensor readings fromtheseat, itwill then
remain illuminated orgo out. With the
45 indicatorlamp illuminated, the
fron tpassen gerfron ta irbag isdeact ivated.
With the45 indicatorlamp out,the
fro ntpassen gerfrontair bag isact ivate d.
When theOCS senses that thefront
passen gerseat occupant isclassif iedasan
adult orsomeo nelarger thanasmall indiv
idual, the45 indicatorlamp will
illuminat efor approx imatelysix seco nds
when theengin eis star ted and thengoout.
This indicates thatthefront passenger front
air bag isactivated.
If the 45 indicatorlampisilluminated,
the front passenger frontairbag is
deactivated andwillnotbedeployed.
If the 45 indicatorlampisnot
illuminated, thefront passenger frontairbag
is activated andwillbedeployed
R in the event ofcert ainfront alimpacts
R ifthe impact exceeds apredetermin ed
triggering threshold
R independent ofthe side impact airbag or
pelvis airbag
If the front passenger frontairbag is
deployed, therate ofinflation willbe
influenced by
R the rate ofvehicle deceleration asassessed
by the airbag cont rolunit
R the front passenger's weightcategory as
identified bythe OCS
For further informat ion,see"Air bag display
messages" (Ypage 249). G
WARNING Acc
ording toaccident statistics,children are
safer when properly restrained onthe rear
seats thanonthe front -passenger seat.Thus,
we stron glyrecommen dthat children be
placed inthe rear seats whenever possible.
Regardless ofseating position, children12
years oldand under mustbeseated and
properly securedinan appropriate infant
restraint ,toddler restraint ,or booster seat
recommen dedforthe size andweight ofthe
child.
The infant orchild restraint mustbeproperly
secured withthevehicle's seatbelt, theseat
belt andTopTether strap,orlower anchors
and TopTether strap,fullyinaccordanc ewith
the child seatmanufacturer' sinstr uctions. Occupant
safety
45Safety
Z

Occupants,
especiallychildren, shouldalways
sit asupright aspossible ,wear theseat belt
properly anduseanappropria telysized infant
restraint, toddlerrestraint, orbooster seat
recommended forthe size andweight ofthe
child.
Child rencan bekilled orseriousl yinjured by
an inflating airbag. Note thefollowi ng
important information whencircumstances
require youtoplace achild inthe front -
passenger seat:
R Your vehicle isequip pedwith airbag
technology designedtodeactivate the
front -passenger frontairbag inyour vehicle
when thesystem sensestheweight ofa
typical 12-mon th-oldchildorless along
with theweight ofastandard appropria te
child restraint onthe front -passenger seat.
R Ac hild inarear-facing childrestraint onthe
front -passenger seatwillbeseriously
injured oreven killed ifthe front -passenger
front airbag inflates inacollision which
could occur under somecircumstan ces,
even withtheairbag techn ology installed
in your vehicle. Theonly means toeliminate
this riskcompletely isnever toplace achild
in arear-facing childrestraint inthe front -
passenger seat.Wetherefore strongly
recommen dthat youalwa ysplace achild
in arear-facing childrestraint onthe rear
seat.
R Ifyou install arear-facing childrestraint on
the front -passenger seat,make surethe
45 indicatorlampisillu minated,
indicating thatthefront -passenger frontair
bag isdeactivated. Shouldthe45
indicator lampnotilluminate orgo out while
the restraint isinstalled, pleasecheck
installation. Periodicallycheck the
45 indicatorlampwhile driving to
make surethatthe45 indicator
lamp isillu minated. Ifthe 45
indicator lampgoesoutorremains out,do
not transport achild onthe front -passenger
seat until thesystem hasbeen repaired. Ac
hild inarear-facing childrestraint onthe
front -passenger seatwillbeseriously
injured oreven killed ifthe front -passenger
front airbag inflates.
R Ifyou place achild inaforward-facing child
restraint onthe front -passenger seat:
- move theseat asfar back aspossible
- use theproper childrestraint
recommen dedforthe age, sizeand
weight ofthe child
- secure childrestraint withthevehicle's
seat beltaccording tothe child seat
manufacturer's instructions
R For children largerthanthetypical 12-
mont h-old child, thefront -passenger front
air bag may ormay notbeactivated.
If the driver's airbag deploy s,this does not
mean thatthefront -passenger frontairbag
also hastodeploy .
The OCS mayhave detected thattheseat:
R was empty oroccupied byaperson witha
weight ofup toor less than thatofatypical
12-m onth-oldchild seated inastandard
child restraint
R was occupied byasmall individua l,such as
a young teenager orasmall adult
R was occupied byachild inachild restraint
system, whoseweight isgreater thanthat
of atypical 12-month-oldchild.
These areexamples ofwhen theOCS
deactivates thefront -passenger frontairbag.
Deactivation takesplacealthough the
collision fulfillsthecriteria fordeploy ingthe
driver's airbag. 46
Occ
upant safetySafety

recommende
dfor the size andweight ofthe
child .The infant orchild restraint system
must beproperly securedinaccordance with
the manufacturer's instructions.Allinfant or
child restraint systemsmustmeet U.S.
Federal MotorVehicle SafetyStandards 213
and 225 andCanadia nMotor Vehicle Safety
Stan dards 213and210. 2.
An inform ationlabelonthe child restraint
system indicates whetheritmeets these
standards. Thisinform ationisalso provided
in the installation instructions supplied with
the child restraintsystem.
Always readandfollow themanufacturer 's
instr uctions whenusinganinfant orchild
restr aintsystem orbooster seat.
Observe allwarning signsinthe vehicle
inter iorand onthe infant orchild restraint. G
WARNIN
G Acc
ording toaccident statistics,children are
safer when properly restrained inthe rear
seating positions thaninthe front seating
position. Thus,westron glyrecommen dthat
children beplaced inthe rear seats whenever
possible. Regardless ofseating position,
children 12years oldand under mustbe
seated andproperly securedinan appropriate
infant restraint ,toddler restraint ,or booster
seat recommen dedforthe size andweight of
the child.
The infant orchild restraint mustbeproperly
secured withthevehicle's seatbelt, theseat
belt andtopteth erstrap, orlower anchors and
top teth erstrap, fullyinaccordanc ewith the
child seatmanufacturer 'sinstr uctions.
Occupant s,especially children,shouldalways
sit asupright aspossible, weartheseat belt
properly anduseanappropriately sizedinfant
restraint ,toddler restraint ,or booster seat
recommen dedforthe size andweight ofthe
child. Children
canbekilled orseriously injuredby
an inflating airbag. Note thefollowing
important informationwhen circumst ances
require youtoplace achild inthe front
passenger seat:
R Your vehicle isequipped withairbag
techn ology designed todeactivate thefront
passenger frontairbag inyour vehicle
when thesystem sensestheweight ofa
typical 12-mont h-old childorless along
with theweight ofastandard appropriate
child restraint onthe front passenger seat.
R For children largerthanthetypical
12- mont h-old child, thefront passenger
front airbag may ormay notbeactivated.
Always makesurethe45indicat or
lamp isilluminat ed,indic atingthat thefront
passen gerfrontair bag isdeact ivated.
R Ac hild inarear-facing childrestraint onthe
front passenger seatwillbeseriously
injured oreven killed ifthe front passenger
front airbag inflates inacollision which
could occur under somecircumstan ces,
even withtheairbag techn ology installed
in your vehicle. Theonly means to
completely eliminatethisriskisto never
place achild inarear-facing childrestraint
in the front seat. Wetherefore strongly
recommen dthat youalwa ysplace achild
in arear-facing childrestraint inabackseat.
R Ifyou must install arear-facing child
restraint onthe front passenger seat
because circumstan cesrequire youtodo
so, make surethe45indic ator
lamp isilluminat ed,indic atingthat thefront
passen gerfrontair bag isdeact ivated.
Should the45indic atorlamp not
illuminat eor go out while therest raint is
inst alled, please checkinsta llati on.
Pe rio dical lyche ckthe 45indicat or
lamp while drivingto make surethe4
5 indicatorlamp isilluminat ed.Ifthe
45indic atorlamp goesoutor
remain sout, donot transpo rtachild onthe
fro ntpassen gerseat untilthe syst emhas
been repaire d. Childr
eninthevehicle
55Safety
Z

Disp
laymessa ges Poss
iblecauses/c onseq uences and M Solu
tions Fro
ntPassenger Air
bag Enabled See
Operator's Man
ual The
fron t-pass enger airbag isen abled duringthejo urn ey, even
th ough :
R ach ild, asm alladult oran obj ectw eighing lessthan the
system' sweight threshold islocated onthe fron t-passenger
seat.
R the fron t-passenger seatisunocc upied.
The system maydetec tobjec tsor forc esapplying additional
weight onthe seat.
X Pull over andstop thevehicle safelyassoon aspossible, paying
att ent ion toroad andtrafficcon dition s.
X En gage theparkin gbrake.
X Switc hoff the ignit ion.
X Open thefron t-passenger door.
X Remove thechild andthechild restraint system fromthefron t-
passenger seat.
X Ifnec essary, securethechild inachild restraint system ona
suitable rearseat.
X Make surethatthereare noobjec tson the seat adding tothe
weight.
The system mayother wisedetec tthe additional weightand
interpret theseat occupant's weightasgreater thanitactually
is.
X Keep theseat unoccupied, closethefront -passenger doorand
switch onthe ignition.
Observe the45(Y page44)indicator lampandthe
multifunction displayand check thefollowing:
Seat unoccupied andignition switched on:
R the 45 indicatorlampmust lightupand remain lit.When
the indicator lampison, OCS (Ypage 44)has deactivated the
front -passenger airbag.
R the Front
Passenger AirbagEnabled SeeOperator's Manual or Front
Passenger AirbagDisabl'd See Operator's
Manual displa
ymessages mustnotappea rint he
multifunction display.Wait foraperiod ofat least 60seconds
until thenecessary systemcheckshave been completed andto
make surethatthedispla ymessages donot appea rint he
multifunction display.
If these condition sare fulfilled ,the front -passenger seatcanbe
occupied again.Whether the45 indicatorlampremains lit
or goes outdepends onhow OCS classifies theoccupant.
If the condition sare not fulfilled ,the system isnot operating
correct ly. 248
Display
messagesOn-board computer and displays

Disp
laymessa ges Poss
iblecauses/c onseq uences and M Solu
tions X
Vis itaqualif iedspecialist wor kshop immediat ely. G
WAR
NING If
th e45 indic ato rlamp remains offeven afterperf ormingtheabove correctivest eps, do
no th ave any childre n12years oldand under andother smallindividuals usethefron t-passenger
seat until thesystem hasbeen repaired. Display
messages Possible
causes/consequences andM Solutions
Front
Passeng er Airbag
Disabl' d See
Operato r's Manual The
front-passenger airbag isdeactivat edduring thejourn eyeven
though anadult oraperson largerthanacert ainsize isoccupying
the fron t-passenger seat.Ifadditional forcesare applied tothe
seat, thesystem mayinterpret theoccupant 'sweight aslower
than itactually is.
X Pull over andstop thevehicle safelyassoon aspossible, paying
atten tiontoroad andtrafficcon ditions .
X En gage theparking brake.
X Switc hoff the ignition .
X Have theoccupant getout ofthe vehicle.
X Keep theseat unocc upied, closethefron t-passenger doorand
switch onthe ignition .
Observe the45(Y page44)indicat orlamp andthe
multifunc tiondisplay andchec kthe following:
Seat unoccupied andignition switched on:
R the 45 indicatorlampmust lightupand remain lit.When
the indicator lampison, OCS (Ypage 44)has deactivated the
front -passenger airbag.
R the Front
Passenger AirbagEnabled SeeOperator's Manual or Front
Passenger AirbagDisabled See Operator's
Manual displa
ymessages mustnotappea rint he
multifunction display.Wait foraperiod ofat least 60seconds
until thenecessary systemcheckshave been completed andto
make surethatthedispla ymessages donot appea rint he
multifunction display.
If these condition sare fulfilled ,the front -passenger seatcanbe
occupied again.Whether the45 indicatorlampremains lit
or goes outdepends onhow OCS classifies theoccupant.
If the condition sare not fulfilled ,the system isnot operating
correct ly.
X Visit aqual ified specialist workshop immediately. Display
messages
249On-board computer and displays Z

Problem Possible
causes/co nsequences andM Solutions
֌
The
yello wESP ®
and
ESP ®
OFF warning
lamps arelitwhile the
engine isrunning. G
Risk
ofaccident ESP
®
,BAS ,PRE-SA FE®
,the HOLD function,hillstart assist and
ESP ®
trailer stabilization aretemporarily unavailable.
BAS PLUS andPRE-SA FE®
Brake mayalsohave failed.
ESP ®
will notstabilize thevehicle ifit starts toskid orifawheel
starts tospin.
Self diagnosis isnot yetcomplete.
The brake system continues tofunct ionnormally, butwithout the
funct ionslisted above. Thewheels couldtherefore lockifyou
brake hard,forexample.
ATTENTI ONASS ISTisdeactivated.
X Carefull ydrive asuitable distance makingslightsteering
movement sat aspeed above12mph (20km/ h).
The funct ionsment ioned above areavaila bleagain whenthe
warning lampgoesout.
If the warning lampisstill on:
X Observe theadditional displaymessages inthe multifunct ion
display .
X Drive oncarefully.
X Visit aqual ified specialist workshop. $
(USAonly)
! (Canada only)
The redindicator lamp
for the electric parking
brake flashes and/or
the yello w
!
warning lampforthe
electric parking brake
lights up. The
electric parking brakeistemporarily malfunctioningor
defective.
X Observe theadditional displaymessages inthe multifunct ion
display . 6
The
redSRS warning
lamp islit while the
engine isrunning. G
Risk
ofinjury The
restraint systemsaremalfunction ing.Theairbags orETDs
may either betriggered unintentionally or,inthe event ofan
accident, notbetriggered atall.
X Drive oncarefully.
X Visit aqual ified specialist workshop immediately. War
ning andindicator lampsin the instrum entcluster
275On-board computer and displays Z