belt MERCEDES-BENZ C CLASS 2019 Owners Manual

Symbols........................................................5
Ataglance....................................................6Cockpit ........................................................... 6Warning and indicator lamps ........................10Overhead control panel ................................14Door control panel and seat adjustment .......16Emergencies and breakdowns ......................18
Digital Operator's Manual.........................20Calling upthe Digital Operator's Manual ...... 20
General notes.............................................21Protectingthe environment ..........................21Genuine Mercedes-Benz parts ......................21Operator's Manual ........................................22Service andvehicle operation ......................23Operating safety ...........................................24Declaration of conformityfor wirelessvehicle components .....................................25Diagnostics connection ................................ 25Qualified specialistworkshop ....................... 26Correct use ofthevehicle ............................26
Problems withyourvehicle ...........................27Reporting safety defects ...............................27LimitedWarranty ..........................................27QR codeforrescue card ...............................28Datastorage .................................................28Copyright ......................................................31
Occupant safety.........................................33Restraint system ...........................................33Seat belts ..................................................... 36Airbags ......................................................... 40
PRE-SAFE®system .......................................47Safely transportingchildren inthevehi‐cle ................................................................48Notes on pets inthevehicle .........................62
Opening and closing..................................64SmartKey......................................................64Doors............................................................ 69Trunk ............................................................73Roller sun blinds ...........................................78Side windows............................................... 80Sliding sunroof ............................................. 83Anti-theft protection .....................................88
Seats andstowing.....................................90Notes onthe correct driver's seat posi‐tion ............................................................... 90Seats ............................................................91Steering wheel ............................................100Easy entry andexitfeature .........................101Operatingthe memory function ..................102Stowage areas ............................................104Cup holder ..................................................11 5Ashtrayand cigarettelighter .......................116Sockets .......................................................11 8Wirelesscharging ofthe mobile phoneand connection withtheexterior antenna ...11 9Installing/removingthefloor mats .............120
Light and visibility...................................12 2Exterior lighting ..........................................12 2Interior lighting ...........................................127Changing bulbs (onlyforvehicles withhalogen headlamps) ....................................12 8Windshield wiper and windshieldwashersystem ........................................................13 2Mirrors........................................................13 4Operatingthe sun visors .............................137
2Contents

QR codeforrescue card
The QR code is secured inthe fuelfillerflap andonthe opposite side onthe B-pillar. Intheeventof an accident,rescue services can usethe QRcodetoquicklyfindthe appropriaterescue cardforyourvehicle. The currentrescue card con‐tainsthe most important information aboutyourvehicle in a compactform, e.g.therouting oftheelectric lines.
Further information can be obtained at http://www.mercedes-benz.de/qr-code.
Datastorage
Electronic control units
Electronic control units are installed inyourvehi‐cle. Some ofthese are necessaryforthe safeoperation ofyourvehicle, while some assistyouwhen driving (driver assistance systems). Inaddition,yourvehicle provides comfortandentertainment functions, which are also madepossiblebyelectronic control units.
Electronic control units contain datamemorieswhichcantemporarily or permanentlystore
technical information aboutthevehicle's operat‐ingstate, component loads, maintenancerequirements andtechnicalevents or malfunc‐tions.
Ingeneral,this information documentsthestateof a component part, a module, a system orthesurroundings such as:
Roperatingstatus of system components (e.g.fill levels, batterystatus, tire pressure)
Rstatus messages concerningthevehicle orits individual components (e.g. number ofwheelrevolutions/speed, longitudinal accel‐eration, lateral acceleration, display offas‐tened seat belts)
Rmalfunctions orfaults in important systemcomponents (e.g. lights, brakes)
Rinformation onevents leadingtovehicledamage
Rsystemreactions in special driving situations(e.g. airbag deployment, intervention ofsta‐bility control systems)
Rambient conditions (e.g.temperature,rainsensor)
In additiontoprovidingthe actual control unitfunction,this data assiststhe manufacturer indetecting andrectifying malfunctions and opti‐mizingvehicle functions. The majority ofthisdata istemporary and is only processed inthevehicle itself. Only a small portion ofthe data isstored intheevent or malfunction memory.
Whenyourvehicle is serviced,technical datafromthevehicle can beread outbyservice net‐workemployees (e.g.workshops, manufactur‐ers) orthird parties (e.g. breakdown services).Services includerepair services, maintenanceprocesses,warranty claims andquality assur‐ance measures,forexample. Theread out is per‐formed viathe legally prescribed portforthediagnostics connection inthevehicle. Therespective service network locations orthirdparties collect, process and usethe data. Theydocumenttechnicalstatuses ofthevehicle,assist infinding malfunctions and improvingquality and are transmittedtothe manufacturer,if necessary.Furthermore,the manufacturer issubjecttoproduct liability.Forthis,the manu‐facturerrequirestechnical datafromvehicles.
28General notes

manufacturer in a suitable place (e.g. Operator'sManual,website ofthe manufacturer) along withtherelevant dataprotection information.Per‐sonal data may be usedforthe provision ofonline services. Data isexchanged via a secureconnection, e.g.the manufacturer's designatedIT systems.Personal data is collected, pro‐cessed and used viathe provision of servicesexclusively onthe basis of legal permissions orwith prior consent.
The services and functions (sometimes subjecttoafee) can usually be activated or deactivated.In some cases,this also appliestothe entirevehicle's data connection. Thisexcludes, in par‐ticular, legally prescribed functions and services.
Third party servicesIf it is possibletouse online services fromotherproviders,these services are subjecttothe dataprotection andterms of use oftheresponsibleprovider. The manufacturer has no influence onthe contentexchanged.
Please inquire,therefore, aboutthe type, scopeand purpose ofthe collection and use of per‐
sonal data as part ofthird party services fromtheirrespective provider.
Multimedia system/Mercedes me connect
Ifthevehicle is equipped withthe multimediasystem or Mercedes me connect, additional dataaboutthevehicle's operation,the use ofthevehicle in certain situations, andthe location ofthevehicle may be compiledbythe multimediasystem or Mercedes me connect.
For additional information pleaserefertothechapter "Multimedia system" and/ortheMercedes me connectTerms and Conditions.
Event datarecorders
USA only:
Thisvehicle is equipped with anevent datarecorder (EDR). The main purpose of an EDR istorecord, in certain crash or near crash-like sit‐uations, such as an airbag deployment or hittingaroad obstacle, datathat will assist in under‐standing how avehicle's systems performed.The EDR is designedtorecord datarelatedto
vehicle dynamics and safety systemsfor a shortperiod of time, typically 30 seconds or less.
The EDR inthisvehicle is designedtorecordsuchdata as:
RHowvarious systems inyourvehiclewereoperating
RWhether or notthe driver and frontpassenger seat beltswerebuckled/fastened
RHowfar (if at all)the driverwas depressingthe accelerator and/or brake pedal and
RHowfastthevehiclewas traveling
This data can help provide a better understand‐ing ofthe circumstances in which accidents andinjuries occur. NOTE: EDR data isrecordedbyyourvehicle only if a non-trivial crash situationoccurs; no data isrecordedbythe EDR undernormal driving conditions and no personal data(e.g. name,gender,age and accident location) isrecorded. However,other parties, such as lawenforcement, could combine EDR data withthetype of personally identifying dataroutinelyacquired during a crash investigation.
30General notes

Restraint system
Protectionbytherestraint system
Therestraint system includesthefollowing com‐ponents:
RSeat belt system
RAirbags
RChildrestraint system
RChild seat securing system
Therestraint system canreducetherisk ofvehi‐cle occupants coming into contact with parts ofthevehicle's interior intheevent of an accident.Therestraint system can alsoreducetheforcestowhichvehicle occupants are subjected intheevent of an accident.
Only a seat belt which isworncorrectly can pro‐videthe intended level of protection. Dependingonthe detected accident situation, EmergencyTensioning Devices and/or airbags supplement acorrectlywornseat belt. EmergencyTensioningDevices and/or airbags are not deployed ineveryaccident.
Fortherestraint systemtoprovide its full protec‐tion, each occupant must observethefollowing:
RFastenthe seat belt correctly.
RBe in an almost upright position withtheirback againstthe seat backrest.
RSit withtheirfeetresting onthefloor, if pos‐sible.
RAlways secure persons under 5ft(1.50 m)tall in an additionalrestraint system suitablefor Mercedes-Benzvehicles.
However,no systemavailabletoday can com‐pletelyeliminate injuries andfatalities ineveryaccident situation. In particular,the seat beltand airbaggenerally do not protect againstobjects penetratingthevehicle fromthe outside.Therisk of an injuryresulting from airbagdeployment also cannot beruled out entirely.
Limited protection fromtherestraint system
\nWARNINGRisk of injuryor death frommodificationstotherestraint system
Therestraint system can no longer functioncorrectly after alterations havebeen made.
Therestraint system maythen not protectthevehicle occupants as intendedbyfailingin an accident or triggering unexpectedly,forexample
Never alterthe parts oftherestraintsystem.
Nevertamper withthe wiring or anyelectronic component parts ortheirsoftware.
If it is necessarytoadjustthevehicletoaccom‐modate a person with disabilities, contact anauthorized Mercedes-Benz Centerfor details.
USA only:for further information contact ourCustomer Assistance Center at1-800-FOR-MERCedes (1‑800‑367‑6372).
Occupant safety33

Seat belts
Protection providedbythe seat belt
Alwaysfastenyour seat belt correctlybeforestarting a journey.A seat belt can only providethe best level of protection if it isworncorrectly.
\nWARNINGRisk of injuryor death duetoincorrectlyfastened seat belt
Ifthe seat belt is notworncorrectly, it can‐not performits intended protective function.
In addition, an incorrectlyfastened seat beltcan also cause injuries,forexample, intheevent of an accident or when braking orchanging direction suddenly.
Always ensurethat allvehicle occu‐pants havetheir seat beltsfastenedcorrectly and are sitting properly.
Always observethe instructions aboutthe cor‐rect driver's seat position and adjustingthe seat(page 90).
In orderforthe correctlywornseat belttopro‐videthe intended level of protection, eachvehi‐cle occupant must observethefollowing infor‐mation:
RThe seat belt must not be twisted and mustfit tightly and snugly acrossthe body.
RThe seat belt must berouted acrossthe cen‐ter ofthe shoulder and as low down acrossthe hips as possible.
RThe shoulder section ofthe seat belt shouldnottouchyour necknor berouted underyour arm or behindyour back.
RAvoidwearing bulky clothing, e.g. a wintercoat.
RPushthe lap belt down asfar as possibleacrossyour hips and pull tight withthe shoul‐der section ofthe belt. Neverroutethe lapbelt acrossyour abdomen.
RNeverroutethe seat belt across sharp, poin‐ted, abrasive or fragile objects.
ROnly one person should use each seat belt atany one time. Never allowbabies andchil‐drentotravel sitting onthe lap of anothervehicle occupant.
RNever secure objects with a seat belt iftheseat belt is also being usedbyone ofthevehicle's occupants. Always observetheinstructionsfor loadingthevehicle whensecuring objects, luggage or loads(page104).
Also ensurethat no objects, e.g. a cushion,areever placed between a person andtheseat.
The seat belts onthefollowing seats are equip‐ped with a special seat beltretractor:
Rfront-passenger seat
RRear seats
Activate or deactivatethe special seatbeltretractor (page54).
Ifchildren are traveling inthevehicle, be suretoobservethe instructions and safety notes on"Children inthevehicle" (page 49).
36Occupant safety

Reduced seat belt protection
\nWARNINGRisk of injuryor death duetoincorrect seat position
The seat belt does not offerthe intendedlevel of protection ifyou havenot movedtheseat backresttoan almostvertical position.
When braking or intheevent of an accident,you could slide underneaththe seat belt andsustain abdominal or neck injuries,forexam‐ple.
Adjustthe seat properlybefore begin‐ningyour journey.
Always ensurethatthe seat backrest isin an almostvertical position andthatthe shoulder section ofyour seat belt isrouted acrossthe center ofyour shoul‐der.
\nWARNINGRisk of injuryor death whenadditionalrestraint systems are not usedfor persons with a smaller build
Persons under 5ft(1.50 m)tall cannotwearthe seat belt correctly without a suitableadditionalrestraint system.
Ifthe seat belt is notworncorrectly, it can‐not performits intended protective function.In addition, an incorrectlyfastened seat beltcan also cause injuries,forexample, intheevent of an accident or when braking orchanging direction suddenly.
Always secure persons under 5ft(1.50 m)tall in a suitablerestraint sys‐tem.
\nWARNINGRisk of injuryor death duetodamaged or modified seat belts
Seat belts cannotprovide protection inthefollowing situations:
RIfthe seat belts are damaged, modified,extremelydirty, bleached or dyed
RIfthe seat belt buckle is damaged orextremelydirty
RIfthe EmergencyTensioning Devices,seat belt anchorages or seat beltretrac‐torshavebeen modified
Seat belts may be damaged in an accident,althoughthe damage may not be visible, e.g.duetosplinters ofglass.
Modified or damaged seat belts maytear orfail, e.g. in an accident.
Modified EmergencyTensioning Devices canaccidentallytrigger orfailtofunction asintended.
Never modifythe seat belts, EmergencyTensioning Devices, seat belt ancho‐rages or seat beltretractors.
Makesurethatthe seat belts areundamaged, notwornand clean.
Always havethe seat beltscheckedimmediately after an accident at aqualified specialistworkshop.
Occupant safety37

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

Vehicles with automatic front passengerfront airbag shutoff:
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 EmergencyTensioning
Device 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 39).
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
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