2019 MERCEDES-BENZ C CLASS light

passenger front airbag is correctforthecurrent situation (page44).
RObservethewarning labels inthevehicleinterior and onthechildrestraint system.
RAlso secureTopTether if present.
Do not alterthechildrestraint system
\nWARNINGRisk of injuryduetomodifi‐cationstothechildrestraint system
Thechildrestraint system may no longerfunction as it is supposedtoifyou makemodifications or attach objectstoit, e.g.toysor unsuitable accessories. This poses anincreasedrisk of injury!
Never modifythechildrestraint system. Onlyattach accessories whichthe manufacturerofthechildrestraint system has authorizedespeciallyforthischildrestraint system.
Only usechildrestraint systems which are inproperworking condition
\nWARNINGRisk of injuryor death causedbythe use of damagedchildrestraintsystems
Childrestraint systems ortheirretaining sys‐temsthat havebeen subjectedtoa load inan accident maythen not be abletoperformtheir intended protective function.
Thechild cannot berestrained intheevent ofan accident, heavy braking or a suddenchange of direction.
Alwaysreplacechildrestraint systemsimmediatelythat havebeen damaged orinvolved in an accident.
Havethe securing systemsforthechildrestraint systemschecked at aqualifiedspecialistworkshop before installing achildrestraint system again.
Avoiding direct sunlight
\nWARNINGRisk of burns whenthechildseat isexposedtodirect sunlight
Ifthechildrestraint system isexposedtodirect sunlight or heat, parts could heat up.
Children could suffer burns fromthese parts,particularly on metallic parts ofthechildrestraint system.
Always make surethatthechildrestraint system is notexposedtodirect sunlight.
Protect it with a blanket,forexample.
Ifthechildrestraint system has beenexposedtodirect sunlight, allow ittocool before securing achild into it.
Never leavechildren unattended inthevehicle.
Occupant safety51

RObjects or loads inthe trunk/cargo com‐partment cannotberestrainedbytheseat backrest.
Make surethatthe seat backrest andtherear benchseat/rear seat areengaged beforeeverytrip.
Iftherear seat backrest is not engaged andlocked,thered lockverification indicator will bevisible.
\nWARNINGRisk of injuryor death ifthepermissible gross mass ofthechild andchildrestraint system isexceeded
ForLATCH-type (ISOFIX)childrestraint sys‐tems in whichthechild is secured usingtheintegrated seat belt inthechildrestraint sys‐tem,the permissible gross mass ofthechildandchildrestraint system is73lb (33kg).
Ifthechild andthechildrestraint systemtogetherweigh morethan73lb (33kg),theLATCH-type (ISOFIX)childrestraint systemwith integrated seat belt does not offer suffi‐
cient protection. Anexcessive load may beplaced ontheLATCH-type (ISOFIX)child seatattachments andthechild may not berestrained intheevent of an accident,forexample.
Ifthechild andthechildrestraint sys‐temtogetherweigh morethan73lb(33kg), useonly aLATCH-type (ISOFIX)childrestraint systemthat securesthechild withthevehicle seat belt.
Also securethechildrestraint systemwiththeTopTether belt, ifavailable.
Always comply withthe information aboutthemass ofthechildrestraint system:
Rinthe manufacturer's installation and operat‐ing instructionsforthechildrestraint systemused
Ron a label onthechildrestraint system, ifpresent
Regularlycheckthatthe permissible gross massofthechild andchildrestraint system isstillcomplied with.
Whenyou are installing achildrestraint system,observethefollowing:
sAlways observethe correct use andthe suit‐ability ofthe seatsfor attaching achildrestraint system.
sAlways comply withthe manufacturer'sinstallation and operating instructionsforthechildrestraint system used.
sMake surethatthechild'sfeetdo nottouchthe front seat. If necessary,movethe frontseatforward slightly.
Whenyou are installing aLATCH-type(ISOFIX)childrestraint system, observethefol‐lowing:
sWhenyou are using a Group 0/0+ babycar seat and a Group 1rearward-facingchildrestraint system on arear seat:adjustthe front seat sothatthe seat doesnottouchthechildrestraint system.
sWhenyou are using a Group 1forward-facingchildrestraint system:removetheheadrestraint fromtherespective seat, if
Occupant safety55

do not interferewiththe correctrouting ofTopTether belt4.
Securingthechildrestraint system withtheseat belt
Securingthechildrestraint system withtheseat belt ontherear seat
\nWARNINGRisk of injuryiftherearbenchseat/rear seat and seat backrestare not engaged
Iftherear benchseat/rear seat and seatbackrest are not engagedtheycouldfoldfor‐wards, e.g. when braking suddenly or intheevent of an accident.
RIfthis isthe case,thevehicle occupantwould beforced intothe seat beltbytherear benchseat/rear seat orbythe seatbackrest. The seat belt cannotprotect asintended and couldresult in additionalinjury.
RObjects or loads inthe trunk/cargo com‐partment cannotberestrainedbytheseat backrest.
Make surethatthe seat backrest andtherear benchseat/rear seat areengaged beforeeverytrip.
Iftherear seat backrest is not engaged andlocked,thered lockverification indicator will bevisible.
When installing a belt-securedchildrestraintsystem, observethefollowing:
sAlways comply withthe manufacturer'sinstallation and operating instructionsforthechildrestraint system used.
sWhen using a category 0/0+ baby carseat and a category Irearward-facingchildrestraint system on arear seat:adjustthe front seat sothatthe seat doesnottouchthechildrestraint system.
sWhen using a category Iforward-facingchildrestraint system:removethe headrestraint fromtherespective seat, if possi‐ble.
Afterremovingthechildrestraint system,replacethe headrestraints again immedi‐ately and adjustthem correctly.
sThe backrestoftheforward-facingchildrestraint system must, asfar as possible, beresting onthe seat backrest oftherearseat.
sFor certainchildrestraint systems inweightcategory II or III,there may berestrictions inthe maximum size setting, e.g. duetopossi‐ble contact with theroof.
sThechildrestraint system must not be putunderstrain betweentheroof andthe seatcushion and/or be installedfacingthewrong direction. Where possible, adjusttheseat cushion inclination accordingly.
sThechildrestraint system must not be putunderstrainbythe headrestraints.Adjustthe headrestraints accordingly.
sMake surethatthechild'sfeetdo nottouchthe front seat. If necessary,movethe frontseatforward slightly.
58Occupant safety

Ifthevehicle is not opened within approximately40 seconds after unlocking, it locksagain. Anti-theft protection is activated again.
Do notkeepthe SmartKeytogether with elec‐tronic devices or metal objects. This can affectthe SmartKey's functionality.
If batterycheck lamp2does not light upafter pressingthe6or7button,thebattery is discharged.
Replacingthe SmartKeybattery(page 66).
Activating/deactivating the acoustic lockingverification signal
Multimedia system:
VehicleîVehicle SettingsAcoustic Lock
Activatesor deactivateSthe function.
Activating/deactivating the panic alarm
Requirements:RThe ignition is switched off
The panic alarm function is onlyavailable incertain countries.
Toactivate:press button1for approx‐imatelyone second.A visual and audible alarm is triggered.Todeactivate:briefly press button1again.
or
Pressthestart/stop button onthe cockpit(the SmartKeyis insidethevehicle).
Changingthe unlocking settings
Possible unlocking functions ofthe SmartKey:
RCentral unlocking
RUnlockingthe driver's door and fuelfillerflap
Toswitch between settings:pressthe6and7buttons simultaneouslyforapproximately six seconds untilthe batterycheck lampflashes twice.
Ifthe unlocking functionforthe driver's doorand fuelfillerflap has been selected:
RPressingthe6button a second time cen‐trally unlocksthevehicle
RVehicles with KEYLESS-GO:Ifyoutouchthe inner surface ofthe door handle onthedriver's door, onlythe driver's door and fuelfillerflap are unlocked.
Deactivatingthe SmartKeyfunctions
Ifyou do not usethevehicle or a SmartKey foranextended period of time,you canreducetheenergy consumption oftherespective Smart‐Key .Todo so, deactivatethe SmartKeyfunc‐tions.
Opening and closing65

Todeactivate:pressthe7button ontheSmartKeytwice inquick succession.The batterycheck lamp ofthe SmartKeyflashes twice brieflyand lights up once.
Toactivate:press any button onthe Smart‐Key.
Whenthevehicle isstarted withthe Smart‐Key inthestowage compartment ofthe cen‐ter console,the SmartKeyfunctions areautomaticallyactivated (page145).
Removing/inserting the emergencykey
Toremove:pressrelease button1.Emergencykey2is pushed out slightly.
Pull out emergencykey2until it engages inthe intermediate position.
You can usethe intermediate position ofemergencykey2toattachthe SmartKeytoakeyring.
Pressrelease button1again and fullyremoveemergencykey2.
Toinsert:pressrelease button1.
Insert emergencykey2tothe intermediateposition or fully until it engages.
Replacing the SmartKeybattery
\nDANGERSerious damagetohealthcausedbyswallowing batteries
Batteries containtoxic and corrosive sub‐stances. Swallowing batteries may causeserious damagetohealth.
There is arisk offatal injury.
Keep batteries out ofthereach ofchil‐dren.
If batteries are swallowed, seek medicalattention immediately.
ENVIRONMENTALNOTEEnvironmentaldamagecausedbyimproper disposal ofbatteries
Batteries contain pollutants. It isillegaltodispose ofthem withthe householdrubbish.

Dispose of batteries in anenvironmentallyresponsible manner.Takedischarged batteriestoaqualifiedspecialistworkshop ortoa collectionpointfor used batteries.
66Opening and closing

Tointerruptautomatic operation:press orpullthebbutton again.
Whenthevehicle is switched off,the side win‐dowscan continue being operated.
The function isavailablefor aroundfiveminutesor until a front door is opened.
Automaticreversing function ofthe side win‐dowsIf an object blocksa side windowduringtheclosing process,the side window opens againautomatically.The automaticreversing functionis only an aid and is not a substituteforyourattentiveness.
When closing, make surethat no body partsare inthe closing area.
\nWARNINGRisk of becoming trappeddespitethere beingreversing protectiononthe side window
Thereversing function does notreact:
RTosoft, light andthin objects, e.g.fingers
RDuringresetting
This meansthatthereverse function cannotprevent someone from becoming trapped inthese situations.
When closing, make surethat no bodyparts are inthe closing area.
If someone becomes trapped, pressthebbuttontoopenthe side windowagain.
Convenience opening (ventilatingthevehiclebeforestarting a journey)
\nWARNINGRisk of entrapment whenopening a side window
When opening a side window,parts ofthebody could be drawn in or become trappedbetweenthe side window and window frame.
When opening, make surethat nobodyistouchingthe side window.
Releasethe button immediately ifsomebody becomes trapped.
Press and holdthe6button ontheSmartKey.
Thefollowing functions are performed:
RThevehicle is unlocked.
RThe side windowsare opened.
RThe sliding sunroof is opened.
RThe panoramic sliding sunroof is opened.
RThe seatventilation ofthe driver's seat isswitched on.
Iftheroller sunblinds ofthe panoramic slidingsunroof are closed,theroller sunblinds areopenedfirst.
Tointerruptconvenience opening:releasethe6button.
Tocontinue convenience opening:pressand holdthe6button again.
Opening and closing81

ProblemPossible causes/consequences andPPSolutions
Make surethat no parts ofthe body are inthe closing area.
Tostopthe closing process,releasethe button or pressthe button againtoreopenthe side win‐dow.
If a side window is obstructed during closing andreopens again slightly:
Immediately afterthe window is blocked, pullthe corresponding switch again untilthe side window hasclosed, and holdthe switchfor an additional second.The side window will be closed with increasedforce.
If a side window is obstructed again during closing andreopens again slightly:
Repeatthe previousstep.The side window is closed withoutthe automaticreversing function.
The side windowscannot be opened orclosed usingthe convenience openingfeature.
The SmartKeybattery is discharged or nearly discharged.
Checkthe battery usingthe batterycheck lamp andreplace if necessary (page 66).
Sliding sunroof
Opening and closingthe sliding sunroof
Theterm"sliding sunroof" alsoreferstothepanoramic sliding sunroof.
Opening and closing83

If in doubt, do notraise or openthesliding sunroof.
1Toraise
2Toopen
3Toclose/lower
UsetheWbuttontooperatethe panoramicsliding sunroof andtheroller sunblind.
RThe panoramic sliding sunroof can be oper‐ated only whentheroller sunblind is open.
RTheroller sunblind can be operated onlywhenthe panoramic sliding sunroof isclosed.
Tostart automatic operation:presstheWbutton beyondthe point ofresistanceor pull andrelease it.
Tointerruptautomatic operation:brieflypresstheWbutton in any direction.The opening/closing process will bestop‐ped.
Vehicles with a panoramic sliding sunroof:The automaticraisingfeature isavailable onlywhenthe sliding sunroof is closed orraised.
Vehicles without a panoramic sliding sun‐roof:The automatic opening andraisingfeatureisavailable only whenthe sliding sunroof isclosed.
Automaticreversing function ofthe slidingsunroofIfthere is an object obstructingthe sliding sun‐roof duringthe closing process,the sliding sun‐
roof will open again automatically.The automaticreversing function is only an aid and is not a sub‐stituteforyour attentiveness.
When closing, make surethat no body partsare inthe closing area.
\nWARNINGRisk of entrapmenteven withthereversing function active
Thereversingfeature does notreact in par‐ticular:
RTosoft, light andthin objects, e.g.fingers
ROverthe last