2019 MERCEDES-BENZ C CLASS airbag off

RThe front passenger sits in such awaythattheirweight israised fromthe sitting sur‐face.
\nWARNINGRisk of injuryor death duetodeactivated front passenger airbag
IfthePASSENGER AIRBAG OFF indicatorlamp is lit,the front passenger airbag is disa‐bled. It will not be deployed intheevent ofan accident and cannotperformits intendedprotective function.
A person inthe front passenger seat couldthen,forexample, come into contact withthevehicle interior, especially ifthe person issittingtoo closetothe cockpit.
Ifthe front passenger seat is occupied,always ensurethat:
RThe classification ofthe person inthefront passenger seat is correct andthefront passenger airbag is enabled or disa‐bled in accordance withthe person inthefront passenger seat.
RThe front passenger seat has been movedasfar back as possible.
RThe person is seated correctly.
Ensure, bothbefore and duringthe jour‐ney,thatthestatus ofthe frontpassenger airbag is correct.
Ifthe front passenger seat is occupied,the clas‐sification ofthe person orchildrestraint systemonthe front passenger seattakes place afterthefront passenger front airbag shutoff self-test.ThePASSENGER AIRBAG indicator lamps dis‐playthestatus ofthe front passenger front air‐bag.
Always observethe notes onthe function ofthePASSENGER AIRBAG indicator lamps(page44).
Function ofthePASSENGER AIRBAG indica‐tor lamps
Self-testof automatic front passenger frontairbag shutoffWhenthe ignition is switched on, a self-test isperformed during whichthe twoPASSENGERAIRBAG ON and OFF indicator lamps light upsimultaneously.
44Occupant safety

Thestatus ofthe front passenger front airbag isdisplayed afterthe self-test:
RPASSENGER AIRBAG ON lights upfor60 seconds, subsequently bothindicatorlamps are off (PASSENGER AIRBAG ON andOFF):the front passenger front airbag is abletodeploy intheevent of an accident.
RPASSENGER AIRBAG OFF lights up continu‐ously:the front passenger front airbag is dis‐abled. It willthen not be deployed intheevent of an accident.
IfthePASSENGER AIRBAG ON indicator lamp isoff, onlythePASSENGER AIRBAG OFF indicatorlamp shows thestatus ofthe front passengerfront airbag. ThePASSENGER AIRBAG OFF indi‐cator lamp may be lit continuously or be off.
IfthePASSENGER AIRBAG OFF indicator lampandtheurestraint systemwarning lamplight up simultaneously,the front passenger seatmay not be used. Also inthis case, do not installachildrestraint system onthe front passengerseat. Haveautomatic front passenger front air‐bag shutoffchecked andrepaired immediately ataqualified specialistworkshop.
Status displayIfthe front passenger seat is occupied, ensure,bothbefore and duringthe journey,thatthesta‐tus ofthe front passenger front airbag is correctforthe current situation.
After installing arearward-facingchildrestraint system onthe front passengerseat:PASSENGER AIRBAG OFF must be lit con‐tinuously.
\nWARNINGRisk of injuryor death fromusing arearward-facingchildrestraintsystem whenthe front passenger frontairbag is enabled
Ifyou secure achild in arearward-facingchildrestraint system onthe front passengerseat andthePASSENGER AIRBAG OFF indi‐cator lamp is off,the front passenger airbagcan deploy intheevent of an accident.
Thechild could bestruckbythe airbag.
Always ensurethatthe front passenger air‐bag is deactivated. ThePASSENGER AIRBAGOFF indicator lamp must be lit.
NEVER use arearward-facingchildrestraintsystem on a seat protectedbyan ENABLEDFRONT AIRBAGin front of it, DEATH or SERI‐OUS INJURYtotheCHILD can occur.
When installing achildrestraint system onthefront passenger seat, observethevehicle-spe‐cific information (page 59).
Depending onthechildrestraint system andthestature ofthechild,thePASSENGER AIRBAGOFF indicator lamp may be off. Inthis case, donot installtherearward-facingchildrestraintsystem onthe front passenger seat.
Instead, installtherearward-facingchildrestraint system on a suitablerear seat.
After installing aforward-facingchildrestraint system onthe front passengerseat:depending onthechildrestraint systemandthestature ofthechild,PASSENGER AIRBAG OFF may be lit continuously or be off.Always observethefollowing information.
Occupant safety45

\nWARNINGRisk of injuryor death duetoincorrect positioning oftheforward-facingchildrestraint system
Ifyou secure achild in aforward-facingchildrestraint system onthe front passenger seatandyou positionthe front passenger seattooclosetothe cockpit, intheevent of an acci‐dent,thechild could:
RCome into contact with thevehicle inte‐rior ifthePASSENGER AIRBAG OFF indi‐cator lamp is lit,forexample.
RBestruckbythe air bag ifthePASSENGER AIRBAG OFF indicator lampis off.
Always movethe front passenger seatasfar back as possible and fullyretractthe seat cushion length adjustment.Always make surethatthe shoulder beltstrap is correctlyrouted fromthe seatbelt outlet onthevehicletothe shoul‐der belt guide onthechildrestraint sys‐tem. The shoulder beltstrap must beroutedforwards and downwards fromthevehicle belt outlet. If necessary,
adjustthe seat belt outlet andthe frontpassenger seat accordingly.
Always observethechildrestraint sys‐tem manufacturer's installation instruc‐tions.
When installing achildrestraint system onthefront passenger seat, observethevehicle-spe‐cific information (page 59).
If a person is sitting onthe front passengerseat:PASSENGER AIRBAG OFF may be lit con‐tinuously or be off, depending onthe person'sstature.
A person onthe front passenger seat mustalways observethefollowing information:
RIfthe front passenger seat is occupiedbyanadult or a person with astature correspond‐ingtothat of an adult,thePASSENGER AIRBAG OFF indicator lamp must be off. Thisindicatesthatthe front passenger front air‐bag is enabled.
IfthePASSENGER AIRBAG OFF indicatorlamp is lit continuously,an adult or person
with a build correspondingtothat of an adultshould not usethe front passenger seat.
Instead,theyshould use arear seat.
RIfthe front passenger seat is occupiedby aperson of smallerstature (e.g. ateenager orsmall adult),thePASSENGER AIRBAG OFFindicator lamp either lights up continuouslyorremains off, depending ontheresult oftheclassification.
-IfthePASSENGER AIRBAG OFF indicatorlamp is off: movethe front passengerseat asfar back as possible, orthe per‐son of smallerstature should use arearseat.
-IfthePASSENGER AIRBAG OFF indicatorlamp is lit continuously:the person ofsmallerstature should not usethe frontpassenger seat.
46Occupant safety

\nWARNINGRisk of injuryor death whenthePASSENGER AIRBAG OFF indicatorlamp is lit
IfthePASSENGER AIRBAG OFF indicatorlampremains lit afterthe system self-test,the front passenger air bag is deactivated. Itwill not be deployed intheevent of an acci‐dent. Inthis case,the front passenger air bagcannotperformits intended protective func‐tion, e.g. when a person is seated inthe frontpassenger seat.
That person could,forexample, come intocontact with thevehicle interior, especially ifthe person is sittingtoo closetothe cockpit.
Ifthe front passenger seat is occupied,always ensurethat:
RThe classification ofthe person inthefront passenger seat is correct andthefront passenger air bag is enabled ordeactivated in accordance withthe per‐son inthe front passenger seat.
RThe person is seated properlywith a cor‐rectlyfastened seat belt.
RThe front passenger seat has been movedasfar back as possible.
Be suretoalso observethefollowing furtherrelated subjects:
RChildrestraint system onthe front passengerseat (page 59).
PRE-SAFE®system
PRE-SAFE®(anticipatoryoccupant protec‐tion)
PRE-SAFE®is abletodetect certain critical driv‐ing situations and implement pre-emptive meas‐urestoprotectthevehicle occupants.
PRE-SAFE®can implementthefollowing meas‐ures independently of eachother:
RTighteningthe seat belts onthe driver's seatand front passenger seat.
RClosingthe side windows.
RVehicles with sliding sunroof:Closingthesliding sunroof.
RVehicles with memory function:Movingthe front passenger seattoa morefavorableseat position.
RVehicles with multicontour seat:Increas‐ingthe air pressure inthe seat side bolstersofthe seat backrest.
RPRE-SAFE®Sound: providedthatthe multi‐media system is switched on,generates abrief noise signaltostimulatethe innate pro‐tective mechanism of a person's hearing.
NOTEDamagecausedbyobjects inthefootwell or behindthe seat
The automatic adjustment ofthe seat posi‐tion mayresult in damagetothe seat and/orthe object.
Stowobjects in a suitable place.
Occupant safety47

Overview of suitable seats inthevehiclefor installing achildrestraint system
Securing systemsforchildrestraint systems
Vehicle seat
Left/rightrear seatPreferred securing system:
LATCH-type (ISOFIX)child seat securing sys‐tem
Also secureTopTether if present(page 56)
Alternative securing system:
RVehicle seat belt
Front passenger seatSecuring system:
RVehicle seat belt
Be suretoobserve:
RIfthe front passenger seat is occupied, ensure,bothbefore and duringthe journey,thatthesta‐tus ofthe front passenger front airbag is correctforthe current situation (page44).
RNotes on automatic front passenger front airbagshutoff (page 43).
Centerrear seatSecuring system:
RVehicle seat belt
Occupant safety53

The seat belts onthefollowing seats are equip‐ped with a special seat beltretractor:
RFront passenger seat
RRear seats
When enabled,the special seat beltretractorensuresthatthe seat belts ofthe frontpassenger seat andrear seats do not slackenoncethechildrestraint system is secured(page54).
Installthechildrestraint system.The entire base ofthechildrestraint systemmust alwaysrestonthe sitting surface oftherear seat.
Always make surethatthe shoulder beltstrap is correctlyrouted fromthe seat beltoutlet ofthevehicletothe shoulder beltguide onthechildrestraint system.The shoulder beltstrap must beroutedfor‐wards and downwards fromthe seat belt out‐let.
Notes onrearward-facing andforward-facingchildrestraint systems onthe frontpassenger seat
\nWARNINGRisk of injuryor death fromusing arearward-facingchildrestraintsystem whenthe front passenger frontairbag is enabled
Ifyou secure achild in arearward-facingchildrestraint system onthe front passengerseat andthePASSENGER AIRBAG OFF indi‐cator lamp is off,the front passenger airbagcan deploy intheevent of an accident.
Thechild could bestruckbythe airbag.
Always ensurethatthe front passenger air‐bag is deactivated. ThePASSENGER AIRBAGOFF indicator lamp must be lit.
NEVER use arearward-facingchildrestraintsystem on a seat protectedbyan ENABLEDFRONT AIRBAGin front of it, DEATH or SERI‐OUS INJURYtotheCHILD can occur.
Observethe specific instructionsfortherear‐ward-facing andforward-facingchildrestraintsystems (page 60).
Warning notice onthe front passenger sun visor
Always observethestatus ofthe front passengerfront airbag onthePASSENGER AIRBAG OFFindicator lamp:
RWhen using arearward-facingchildrestraintsystem onthe front passenger seat,the frontpassenger front airbag must always be disa‐bled. This is onlythe case ifthePASSENGERAIRBAG OFF indicator lamp is lit continu‐ously (page44).
RIfthePASSENGER AIRBAG OFF indicatorlamp is off,the front passenger front airbagis enabled. The front passenger front airbagmay deploy during an accident.
Occupant safety59

Seats
Adjusting the front seat mechanically andelectrically (without Seat ComfortPackage)
\nWARNINGRisk of becoming trapped ifthe seats are adjustedbychildren
Children could become trapped iftheyadjustthe seats, particularly when unattended.
When leavingthevehicle, alwaystakethe SmartKeywithyou and lockthevehicle.
Never leavechildren unattended inthevehicle.
The seats can be adjusted whenthe ignition isswitched off.
\nWARNINGRisk of becoming trappedwhen adjustingthe seats
Whenyou adjust a seat,you orothervehicleoccupants could become trapped, e.g. ontheseat guiderail.
When adjusting a seat, make surethatno one has any body parts inthe sweepofthe seat.
Observethe safety notes on "Airbags" and "Chil‐dren inthevehicle".
\nWARNINGRisk of accident duetothedriver's seat not being engaged
Ifthe driver's seat is not engaged, it couldmoveunexpectedly whilethevehicle is inmotion.
This could causeyoutolose control ofthevehicle.
Always make surethatthe driver's seatis engaged beforestartingthevehicle.
\nWARNINGRisk of injuryfrom adjustingthevehicle settings whilethevehicle is inmotion
You could lose control ofthevehicle inthefollowing situations:
Rifyou adjustthe driver's seat,the headrestraint,thesteering wheel orthe mirrorwhilethevehicle is in motion
Rifyoufastenyour seat belt whilethevehi‐cle is in motion
Beforestartingthe engine: adjustthedriver's seat,the headrestraint,thesteering wheel orthe mirror andfastenyour seat belt.
\nWARNINGRisk of becoming trapped ifthe seat height is adjusted carelessly
Ifyou adjustthe seat height carelessly,youorothervehicle occupants could be trappedandthereby injured.
Seats andstowing91

1Seat backrestinclination
2Seat height
3Seatfore-and-aft position
Toadjustthe seatfore-and-aft position:lift lever3and slidethe seat intothedesired position.
Make surethatthe seat is engaged.
Adjusting the front seat mechanically andelectrically
\nWARNINGRisk of becoming trapped ifthe seats are adjustedbychildren
Children could become trapped iftheyadjustthe seats, particularly when unattended.
When leavingthevehicle, alwaystakethe SmartKeywithyou and lockthevehicle.
Never leavechildren unattended inthevehicle.
The seats can be adjusted whenthe ignition isswitched off.
\nWARNINGRisk of becoming trappedwhen adjustingthe seats
Whenyou adjust a seat,you orothervehicleoccupants could become trapped, e.g. ontheseat guiderail.
When adjusting a seat, make surethatno one has any body parts inthe sweepofthe seat.
Observethe safety notes on "Airbags" and "Chil‐dren inthevehicle".
\nWARNINGRisk of accident duetothedriver's seat not being engaged
Ifthe driver's seat is not engaged, it couldmoveunexpectedly whilethevehicle is inmotion.
This could causeyoutolose control ofthevehicle.
Always make surethatthe driver's seatis engaged beforestartingthevehicle.
\nWARNINGRisk of becoming trapped ifthe seat height is adjusted carelessly
Ifyou adjustthe seat height carelessly,youorothervehicle occupants could be trappedandthereby injured.
Seats andstowing93