belt MERCEDES-BENZ E CLASS 2019 User Guide

NOTEDeployment ofthe EmergencyTensioning Device and side air bag whenthe front passenger seat is unoccupied
Ifthe seat belttongue is engaged inthe seatbelt buckle ofthe unoccupied frontpassenger seat,the EmergencyTensioningDevice andthe side air bag may also deployintheevent of an accident along withothersystems.
Only one person should use each seatbelt at any one time.
Vehicles without automatic front passengerfront airbag shutoff:
NOTEDeployment ofthe EmergencyTensioning Device whenthe front-passenger seat is unoccupied
Ifthe seat belttongue is engaged inthe seatbelt buckle ofthe unoccupied front-passenger seat,the EmergencyTensioningDevice may also deployintheevent of anaccident along withother systems.
Only one person should use each seatbelt at any one time.
Seat belt adjustment function
Vehicles with PRE-SAFE®:Ifthe front seat beltis not pulled tight acrossyour body,the seat beltadjustment may automatically apply a certaintighteningforce. Do not holdthe seat belt tightlywhile it is adjusting.
You can activate and deactivatethe seat beltadjustment function usingthe multimedia sys‐tem (→page 38).
Releasing seat belts
Presstherelease button inthe seat beltbuckle and guidethe seat belt back withtheseat belttongue.
Activating/deactivating seat belt adjustmentvia the multimedia system
Multimedia system:
VehicleîVehicle SettingsBelt
Adjustment
Activatesor deactivateSthe function.
Seat beltwarning functionfor the driver andfront passenger
The

Inthefollowing cases,the seat beltwarninglights up during a journey if:
RThevehicle speedexceeds15mph(25 km/h) andthe driver's or frontpassenger seat belt is notfastened.
RThe driver or front passenger unfastenstheirseat belt whilethevehicle is in motion.
Airbags
Overview of airbags
1Driver's knee bag
2Driver's airbag
3Front passenger front airbag
4Front passenger knee airbag
5Window curtain airbag
6Side impact airbag
The installation location of an airbag is identifiedbythe AIRBAGsymbol.
When activated, an airbag can provide additionalprotectionfortherespectivevehicle occupant.
Potential protection from each airbag:
AirbagPotential protectionfor…
Knee airbag Thigh, knee and lower leg
Driver's airbag,front passengerfront airbag
Head andribcage
Window curtainairbagHead
Side impact air‐bagRibcage, also pelvisforfront seat occupants
The front passenger front airbag can only bedeployed in an accident ifthePASSENGER AIRBAG OFF indicator lamp is off. Ifthe frontpassenger seat is occupied, make sure, bothbefore and duringthe journey,thatthestatus ofthe front passenger front airbag is correct(→page43).
NOTEImportant pointstoremember ifthe front passenger seat is unoccupied
In an accident,the components oftherestraint system may deploy unnecessarilyonthe front passenger side if:
RThere are heavy objects onthe frontpassenger seat.
RThe seat belttongue is engaged intheseat belt buckle ofthe front passengerseat andthe front passenger seat isunoccupied.
Stowobjects in a suitable place.
Only one person should use each seatbelt at any one time.
Occupant safety39

Protectionbythe airbags
Depending onthe accident situation, an airbagmay supplementthe protection offeredbya cor‐rectlyfastened seat belt.
\nWARNINGRisk of injuryor death duetoincorrect seat position
Ifyou deviate fromthe correct seat position,the air bag cannotperformits intended pro‐tective function and deployment mayevencause further injuries.
Toavoid hazardous situations, always makesurethat allvehicle occupants:
RHavetheir seat beltfastened correctly,including pregnantwomen.
RAre seated properly andthat distancetothe air bags is as large as possible.
RObservethefollowing information.
Always make surethatthere are noobjects betweenthe air bag andthevehicle occupant.
Toavoidtherisksresulting fromthe deploymentof an airbag, eachvehicle occupant mustobservethefollowing information:
RBeforestartingyour journey,adjustyour seatcorrectly;the driver's seat and front-passenger seat should be moved asfar backas possible.
When doing so, always observethe informa‐tion onthe correct driver's seat position(→page88).
ROnly holdthesteering wheelbythesteeringwheelrim. This allowsthe airbagtobe fullydeployed.
RAlways lean againstthe seat backrest whenthevehicle is in motion. Do not leanforwardsor againstthe door or side window.You mayotherwise be inthe deployment area oftheairbags.
RAlwayskeepyourfeetonthefloor. Do notputyourfeetonthe cockpit,forexample.Yourfeetmayotherwise be inthe deploy‐ment area ofthe airbag.
RIfchildren are traveling inthevehicle,observethe additional notes (→page 48).
RAlwaysstowand secure objects correctly.
Objects inthevehicle interior may prevent anairbag from functioning correctly. Eachvehicleoccupant must always make sure ofthefollow‐ing:
RThere are no people, animals or objectsbetweenthevehicle occupants and an air‐bag.
RThere are no objects betweenthe seat, doorand door pillar (B-pillar).
RThere are no hard objects, e.g. coat hangers,hanging onthe grab handles or coat hooks.
RThere are no accessory parts, such as PNDs(PersonalNavigation Devices), mobilephones or cup holders attachedtothevehi‐cle withinthe deployment area of an airbag,e.g. onthe cockpit, on doors, side windowsor side paneling.
In addition, no connecting cable,tensioningstrap orretainingstrap may beroutedthrough or attached inthe deployment areaof an airbag. Always observethe accessorymanufacturer's installation instructions, in
40Occupant safety

Status ofthe front passenger front airbag
Function ofthe automatic front passengerfront airbag shutoffThe automatic front passenger front airbag shut‐off is abletodetect whetherthe front passengerseat is occupiedbya person or achildrestraintsystem. The front passenger front airbag andfront passenger knee airbag are enabled or disa‐bled accordingly.
When installing achildrestraint system onthefront passenger seat, always make sure ofthefollowing:
REnsurethatthechildrestraint system is posi‐tioned correctly (→page47).
RAlways observethechildrestraint systemmanufacturer's installation instructions.
RNever place objects, e.g. cushions, under orbehindthechildrestraint system.
RFullyretractthe seat cushion length adjust‐ment.
RThe entire base ofthechildrestraint systemmust alwaysrestonthe seat cushion ofthefront passenger seat.
RThe backrest oftheforward-facingchildrestraint system must lie asflat as possibleagainstthe backrest ofthe front passengerseat.
RThechildrestraint system must nottouchtheroof or be put understrainbythe headrestraints.Adjustthe seat backrest inclina‐tion andthe headrestraint setting accord‐ingly.
\nWARNINGRisk of injuryor death duetoobjects betweenthe sitting surface andthechildrestraint system
Objects betweenthe sitting surface andthechildrestraint system could affectthe func‐tion ofthe automatic front passenger airbagshutoff.
This couldresult inthe front passenger air‐bag not functioning as intended during anaccident.
Do not place any objects betweenthesitting surface andthechildrestraintsystem.
The entire base ofthechildrestraintsystem must alwaysrestonthe sittingsurface ofthe front passenger seat.
The backrest oftheforward-facingchildrestraint system must, asfar as possi‐ble, beresting onthe seat backrest ofthe front passenger seat.
Always comply withthechildrestraintsystem manufacturer's installationinstructions.
A person onthe front passenger seat mustobservethefollowing information:
RFasten seat belts correctly (→page33).
RSit in an almost upright seat position withtheir back againstthe seat backrest.
RSit withtheirfeetresting onthefloor, if pos‐sible.
The front passenger front airbag mayotherwisebe disabledbymistake,forexample inthefol‐lowing situations:
RThe front passenger transferstheirweightbysupportingthemselves on avehicle armrest.
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\nWARNINGRisk of injuryor death duetoincorrect positioning oftheforward-facingchildrestraint system
Ifyou secure achild in aforward-facingchildrestraint system onthe front passenger seatandyou positionthe front passenger seattooclosetothe dashboard, intheevent of anaccident,thechild could:
Rcome into contact withparts ofthevehi‐cle interior ifthePASSENGER AIRBAGOFF indicator lamp is lit,forexample
Rbestruckbythe airbag ifthePASSENGERAIRBAG OFF indicator lamp is 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 from
the seat belt outlet. If necessary,adjustthe front passenger seat accordingly.
Always observethechildrestraint sys‐tem manufacturer's installation instruc‐tions.
When installing achildrestraint system onthefront passenger seat, observethevehicle-spe‐cific information (→page 58).
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.
Occupant safety45

\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 58).
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.
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Reversingthe PRE-SAFE®system measures
If an accident did not occur,the pre-emptivemeasuresthatweretaken arereversed.
You will needtoperformcertain settingsyour‐self.
Ifthe seat belt pre-tensioning is notreduced,movethe seat backrest back slightly.The locking mechanismreleases.
Function of PRE-SAFE®PLUS (anticipatoryoccupant protection plus)
PRE-SAFE®PLUS can detect certain impacts,particularlyan imminentrear impact, andtakepre-emptive measurestoprotectthevehicleoccupants. These measures cannot necessarilyprevent an imminent impact.
PRE-SAFE®PLUS can implementthefollowingmeasures independently of eachother:
RTighteningthe seat belts onthe driver's seatand front passenger seat.
RIncreasing brake pressure whenthevehicleisstationary.This brake application is can‐
celed automatically whenthevehicle pullsaway.
If an accident did not occur,the pre-emptivemeasuresthatweretaken arereversed.
System limitations
The system will not initiate any action inthefol‐lowing situations:
Rwhen backing up
The system will not initiate any braking applica‐tion inthefollowing situations:
Rwhilst driving
or
Rwhen entering orexiting a parking spacewhile usingActiveParking Assist
Safely transportingchildren inthevehicle
Always observewhenchildren are travelinginthevehicle
Alsostrictly observethe safety notesforthespecific situation. Inthiswayyou canrecog‐nize potentialrisks andavoid dangers ifchil‐
dren are traveling inthevehicle(→page 48).
Be diligentBear in mindthat neglectingtosecure achild inthechildrestraint system may haveserious con‐sequences. Always be diligent in securing achildcarefully beforeeveryjourney.
Toimproveprotectionforchildrenyoungerthan12years old or under 5ft(1.50 m) in height,Mercedes-Benzrecommendsyou observethefollowing information:
RAlways securethechild in achildrestraintsystem suitableforthis Mercedes-Benzvehi‐cle.
RThechildrestraint system must be appropri‐atetothe age,weight and size ofthechild.
RThevehicle seat must be suitablefor instal‐ling achildrestraint system.
Accidentstatistics showthatchildren secured intherear seats aregenerally saferthanchildrensecured inthe front seats.Forthisreason,Mercedes-Benzstrongly advisesthatyou installachildrestraint system on arear seat.
Occupant safety47

Genericterm"childrestraint system"
Thegenerictermchildrestraint system is usedinthis Operator's Manual. Achildrestraint sys‐tem is,forexample:
Ra baby car seat
Rarearward-facingchild seat
Raforward-facingchild seat
Rachild booster seat with a backrest and seatbelt guide
Mercedes-Benzrecommends using achildbooster seat with a backrest.
Thechildrestraint system must be appropriatetothe age,weight and size ofthechild.
Observing lawsand legalrequirementsAlways observethe legalrequirements whenusing achildrestraint system inthevehicle.
Observingstandardsforchildrestraint sys‐tems
Allchildrestraint systems must meetthefollow‐ingstandards:
RU.S.Federal MotorVehicle SafetyStandards213 and 225
RCanadian MotorVehicle SafetyStandards213 and210.2
Confirmationthatthechildrestraint systemcomplies withthestandards can befound on aninstruction label onthechildrestraint system.This confirmation can also befound inthe instal‐lation instructionsthat are included withthechildrestraint system.
Detectingrisks,avoiding danger
Securing systemsforchildrestraint systemsinthevehicle
Only usethefollowing securing systemsforchildrestraint systems:
RtheLATCH-type (ISOFIX) mounting brackets
Rthevehicle's seat belt system
RtheTopTether anchorages
Installing aLATCH-type (ISOFIX)childrestraintsystem is preferred.
Simply attachingtothe securingrings onthevehicle canreducetherisk of installingthechildrestraint system incorrectly.
When securing achild withthe integrated seatbelt oftheLATCH-type (ISOFIX)childrestraintsystem, always comply withthe permissiblegrossweightforthechild andchildrestraint sys‐tem (→page 53).
A booster seat may be necessarytoachieveproper seat belt positioningforchildrenover40 lbs (18kg) inweight or untiltheyreach aheight where athree-point seat belt can beinstalled properly without a booster seat.
Mercedes-Benzrecommends a suitablechildbooster seat with a backrest and seat belt guide.
Advantage of arearward-facingchildrestraint systemIt is preferabletotransporta baby or a smallchild in a suitablerearward-facingchildrestraintsystem. Inthis case,thechild sits inthe oppo‐
48Occupant safety

site directiontothe direction of travel andfacesbackwards.
Babies and smallchildren havecomparativelyweak neck muscles inrelationtothe size andweight oftheir head. Therisk of injurytothe cer‐vical spine during an accident can bereduced inarearward-facingchildrestraint system.
Always secure achildrestraint system cor‐rectly
\nWARNINGRisk of injuryor death causedbyincorrect installation ofthechildrestraint system
Ifthechildrestraint system is incorrectlyinstalled on a suitable seating position, itcannot performits intended protective func‐tion.
Thechild cannot berestrained intheevent ofan accident, heavy braking or a suddenchange of direction.
Always comply withthe manufacturer'sinstallation instructionsforthechildrestraint system and its correct use.
Makesurethatthe entire base ofthechildrestraint system alwaysrests onthe sitting surface ofthe seat.
Never place objects under or behindthechildrestraint system, e.g. cush‐ions.
Always usechildrestraint systems withthe original cover designedforthem.
Alwaysreplace damaged coverswithgenuine covers.
\nWARNINGRisk of injuryor death fromunsecuredchildrestraint systems inthevehicle
Ifthechildrestraint system is not correctlyinstalled or secured, it couldrelease intheevent of an accident, sudden braking or asuddenchange in direction.
Thechildrestraint system could beflungaround and hitvehicle occupants.
Always installchildrestraint systemscorrectly,even when not in use.
Always comply withthechildrestraintsystem manufacturer's installationinstructions.
RAlways observethechildrestraint systemmanufacturer's installation and operatinginstructions aswell asthevehicle-specificinformation:
-InstalltheLATCH-type (ISOFIX)childrestraint system ontherear seat(→page 53).
-Securethechildrestraint system withtheseat belt ontherear seat (→page57).
-Securethechildrestraint system withtheseat belt onthe front passenger seat(→page 59). Observethe specificinstructionsfortherearward-facing andforward-facingchildrestraint systems(→page 58).
Ifthe front passenger seat is occupied,ensure, bothbefore and duringthe jour‐ney,thatthestatus ofthe frontpassenger front airbag is correctforthecurrent situation (→page43).
Occupant safety49

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 55)
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 (→page43).
RNotes on automatic front passenger front airbagshutoff (→page 42).
52Occupant safety