2019 MERCEDES-BENZ C CLASS tow

Only use seat belts which havebeen approvedforyourvehiclebyMercedes-Benz.
\nWARNINGRisk of injuryor death fromdeployedpyrotechnic EmergencyTen‐sioning Devices
Pyrotechnic EmergencyTensioning Devicesthat havebeen deployed are no longer opera‐tional and are unabletoperformtheir inten‐ded protective function.
Therefore, havedeployedpyrotechnicEmergencyTensioning Devices immedi‐atelyreplaced at aqualified specialistworkshop.
Mercedes-Benzrecommendsthatyou havethevehicletowedtoaqualified specialistworkshopafter an accident.
NOTEDamagecausedbytrappingtheseat belt
If an unused seat belt is not fullyretracted, itmay become trapped inthe door or intheseat mechanism.
Always ensurethat an unused seat beltis fullyretracted.
Releasingtherear passenger compartmentcenter seat belt
Ifthe left-handrear seat backrest isfolded downand back up again, it may not be possibletopullouttherear passenger compartment center seatbelt. The seat belt must bereleased.
Pullthe seat belt out approximately 1 in(25 mm) atthe seat belt outlet onthe seatbackrest andthenrelease it again.The seat belt isretracted andreleased.
Fastening and adjustingthe seat belts
Ifthe seat belt is pulledquickly or sharply,theseat beltretractor locks. The seat beltstrap can‐not be pulled out any further.
Always engage seat belttongue2oftheseat belt into seat belt buckle1ofthe cor‐responding seat.
Press and holdthe seat belt outletreleaseand slide seat belt outlet3intothe desiredposition.
Let go ofthe seat belt outletrelease andensurethat seat belt outlet3locksintoposition.
38Occupant safety

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
1Knee airbag
2Driver's airbag
3Front passenger front airbag
4Window curtain airbag
5Side 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 airbag Ribcage, also pelvisforfront seat occupants
The front passenger front airbag can only bedeployed in an accident ifthePASSENGER AIR
BAG OFF indicator lamp is off. Ifthe frontpassenger seat is occupied, make sure, bothbefore and duringthe journey,thatthestatus ofthe front passenger front airbag is correct(page44).
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.
40Occupant safety

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(page90).
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 49).
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 berouted
Occupant safety41

through or attached inthe deployment areaof an airbag. Always observethe accessorymanufacturer's installation instructions, inparticularthe information on suitable placesfor installation.
RThere are no heavy, sharp-edged or fragileobjects inthe pockets ofyour clothing.Storesuch objects in a suitable place.
Limited protection from airbags
\nWARNINGRisk of injuryduetomodifi‐cationstothe airbag cover
Ifyou modifythe cover of an airbag or affixobjects such asstickerstoit,the airbag mayno longer function correctly.
Never modifythe cover of an airbag anddo not affix objectstoit.
The installation location of an airbag is identifiedbythe AIRBAGsymbol (page 40).
\nWARNINGRisk of injuryor death duetothe use of unsuitable seat covers
Unsuitable seat coverscan obstruct or pre‐ventthe deployment of air bags integratedintothe seats.
Consequently,the air bags cannotprotectvehicle occupants astheyare designedtodo. In addition, operation ofthe automaticfront passenger air bag shutoff may berestricted.
You should onlyuse seat coversthathavebeen approvedforthe correspond‐ing seatsbyMercedes-Benz.
\nWARNINGRisk of injuryduetomalfunc‐tions ofthe sensors inthe door paneling
Sensorstocontrolthe airbags are located inthe doors. Modifications orworknot per‐formed correctlytothe doors or door panel‐ing, aswell as damaged doors, can leadtothe function ofthe sensors being impaired.The airbags mighttherefore not functionproperlyany more.
Consequently,the airbags cannotprotectvehicle occupants astheyare designedtodo.
Never modifythe doors or parts ofthedoors.
Always haveworkonthe doors or doorpaneling carried out at aqualified spe‐cialistworkshop.
\nWARNINGRisk of injuryduetodeployedairbag
A deployed airbag no longer has a protectivefunction and cannotprotect as intended intheevent of an accident.
Havethevehicletowedtoaqualifiedspecialistworkshop in ordertohavethedeployed airbagreplaced.
Havedeployed airbagsreplaced immediately.
42Occupant 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

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

Toactivate:press and hold button2forapproximatelyfiveseconds until an acousticsignal sounds.
Todeactivate:press and hold button1forapproximatelyfiveseconds until an acousticsignal sounds.
Inthefollowing situations,there is a danger ofbeing locked out whenthe function is activated:
RWhilethevehicle is beingtowstarted/pushed.
RThevehicle is beingtested onthe dynamom‐eter.
Locking/unlockingthe driver's door withtheemergencykey
Ifyou wishtolockthevehicle entirely usingthe emergencykey,first pressthe buttonforlocking fromthe inside whilethe driver'sdoor is open. Then proceedtolockthe driv‐er's door usingthe emergencykey.
Insertthe emergencykey asfar as it will gointo opening1inthe cover.
Pull and holdthe door handle.
Pullthe cover onthe emergencykey asstraight as possibleawayfromthevehicleuntil itreleases.
Releasethe door handle.
72Opening and closing

Vehicles with trunk lid convenience clos‐ingfeature:With the trunk lidstopped in anintermediate position, pull it upwards andrelease it as soon as it beginstoopen.With the trunk lid opening heightrestrictionactivated, manually pullthestopped trunk lidupwards.
Vehicles with trunk lid convenience closingfeature:If an objectrestrictsthe trunk lid duringthe automatic opening process, obstacle detec‐tion willstopthe trunk lid. The obstacle detec‐tion function is only an aid and is not a substi‐tuteforyour attentiveness.
Closingthe trunk lid
\nWARNINGRisk of injuryfrom unsecureditems inthevehicle
If objects, luggage or loads are not securedor not secured sufficiently,theycould slip,tipover or bethrown around andthereby hitvehicle occupants.
There is arisk of injury,particularly intheevent of sudden braking or a suddenchangein direction.
Alwaysstowobjects in such awaythattheycannot bethrown around.
Beforethe journey,secure objects, lug‐gageor loads against slipping or tippingover.
Comply withthe loading guidelines whenyou areloadingthevehicle.
\nWARNINGRisk of becoming trappedduring automatic closing ofthe trunk lid
Parts ofthe body could become trapped dur‐ing automatic closing ofthe trunk lid. More‐over,people, e.g.children, may bestandinginthe closing area or may enterthe closingarea duringthe closing process.
Make surethat nobody is inthe vicinityofthe closing area duringthe closingprocess.
Use one ofthefollowing optionstostopthe closing process:
RPressthe