lock MERCEDES-BENZ C CLASS 2019 User Guide

Pressthe lever in direction1(activate) or2(deactivate).
Make surethatthechild safety locksareworking properly.
Activating/deactivating thechild safety lockfor therear side windows
Toactivate/deactivate:press button2.
Therear side windowcan be opened orclosed inthefollowing cases:
Rwith indicator lamp1lit: viathe switchonthe driver's door
Rwith indicator lamp1off: viathe switchonthe correspondingrear door or driv‐er's door
Notes on pets inthevehicle
\nWARNINGRisk of accident and injuryduetoanimals left unsecured or unat‐tended inthevehicle
Ifyou leaveanimals inthevehicle unatten‐ded or unsecured,theycould possiblypressdown buttons or switches.
Thereby an animal may:
Ractivatevehicle equipment and becometrapped,forexample
Rswitchsystems on or off and endangerotherroad users
Unsecured animals may bethrown around inthevehicle intheevent of an accident orsuddensteering and braking maneuver andinjurevehicle occupants inthe process.
62Occupant safety

SmartKey
Overview of SmartKeyfunctions
\nWARNINGRisk of accident and injuryduetochildren left unattended inthevehicle
Ifchildren are left unattended inthevehicle,theycould:
ROpen doors,thereby endangeringotherpersons orroad users.
RGet out ofthevehicle and be hitbyoncoming traffic.
ROperate vehicle equipment and becometrapped,forexample.
In addition,children could also setthevehi‐cle in motion,forexample,by:
RReleasingthe parking brake.
RShiftingthe automatic transmission outof park position]or shifting manualtransmission into neutral.
RStartingthe engine
When leavingthevehicle, alwaystakethe SmartKeywithyou and lockthevehicle.
Never leavechildren and animals unat‐tended inthevehicle.
Keepthe SmartKeyout ofreach ofchil‐dren.
NOTEDamagetothekey causedbymagneticfields
Keepthekeyawayfromstrong mag‐neticfields.
1Locks
2Batterycheck lamp
3Unlocks
4Opens/closesthe trunk lid
5Panic alarm
The SmartKey mayvaryfromthe one showninthe diagram, depending onthevehicleequipment.
The SmartKeylocksand unlocksthefollowingcomponents:
Rthe doors
Rthe trunk lid
Rthe fuelfillerflap
64Opening and closing

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

Requirements:RYourequire a CR 2032 3 V cell battery.
Mercedes-Benzrecommendsthatyou havethebatteryreplaced at aqualified specialistwork‐shop.
Removethe emergencykey (page 66).
Pressrelease button2down fully and slidecover1inthe direction ofthe arrow.
Fold out cover1inthe direction ofthearrowandremove.
Removebattery compartment3andtakeoutthe discharged battery.
Insertthe new battery into battery compart‐ment3. Observethe positive pole markinginthe battery compartment and onthe bat‐terywhen doingthis.
Push in battery compartment3.
Re-attach cover1and push it until itengages.
Problems withthe SmartKey
ProblemPossible causes/consequences andPPSolutions
You can no longer lock or unlockthevehicle.Possible causes are:
RThe SmartKeybattery is discharged or nearly discharged.
RThere is interference from a powerfulradio signal source.
Opening and closing67

ProblemPossible causes/consequences andPPSolutions
RThe SmartKeyis defective.
Checkthe battery usingthe batterycheck lamp andreplace if necessary (page 66).
Usethe emergencykeytolock or unlock (page 66).
Havethe SmartKeychecked at aqualified specialistworkshop.
You havelost a SmartKey.Havethe SmartKeydeactivated at aqualified specialistworkshop.
If necessary,havethe mechanical lockchanged aswell.
68Opening and closing

Doors
Unlocking and opening doors fromthe inside
Tounlockand open a front door:pull doorhandle2.Locking pin1pops up whenthe door isunlocked.
Tounlockarear passenger compartmentdoor:pulltherear passenger compartmentdoor handle.The locking pin pops up whentherearpassenger compartment door is unlocked.
Toopen arear passenger compartmentdoor:pulltherear passenger compartmentdoor handle again.
Centrally locking and unlockingthevehiclefromthe inside
Tounlock:press button1.
Tolock:press button2.
This does not lock or unlockthe fuelfillerflap.
Opening and closing69

Thevehicle is not unlocked:
RIfyou havelockedthevehicle usingtheSmartKey.
RIfyou havelockedthevehicle using KEY‐LESS-GO.
Locking/unlockingthevehicle with KEY‐LESS-GO
RequirementsRThe SmartKeyis outsidethevehicle.
RThe distance betweenthe SmartKeyandthevehicle does notexceed 3ft(1 m).
RThe driver's door andthe door at whichthedoor handle is used are closed.
Tounlockthevehicle:touchthe inner sur‐face ofthe door handle.
Tolockthevehicle:touch sensor surface1or2.
Convenience closing:touchrecessed sen‐sor surface2untilthe closing procedure iscomplete.
Further information on convenience closing(page82).
Ifyou openthe trunk lid from outside it is auto‐matically unlocked.
Problems with KEYLESS-GO
ProblemPossible causes/consequences andPPSolutions
You can no longer lock or unlockthevehicle using KEYLESS-GO.Possible causes are:
RThe SmartKeyfunctions havebeen deactivated (page 65).
RThe SmartKeybattery is discharged or nearlydischarged.
70Opening and closing

ProblemPossible causes/consequences andPPSolutions
RThere is interference from a powerfulradio signal source.
RThe SmartKeyisfaulty.
Activatethe SmartKeyfunctions (page 65).
Checkthe battery usingthe batterycheck lamp andreplace if necessary (page 66).
Usethe emergencykeytounlockor lockthevehicle (page 66).
Havethevehicle and SmartKeychecked at aqualified specialistworkshop.
Activating/deactivating the automatic lock‐ingfeature
Thevehicle is locked automatically whentheignition is switched on andthe wheels are turn‐ingfasterthanwalking pace.
Opening and closing71

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

Tounlock:turnthe emergencykey counter-clockwisetopositionG.
Tolock:turnthe emergencykey clockwisetopositionG.
Carefully pressthe cover ontothe lock cylin‐der until it engages and is seatedfirmly.
Trunk
Openingthe trunk lid
\nDANGERRisk ofexhaustgas poisoning
Combustion engines emit poisonousexhaustgases such as carbon monoxide. Exhaustgases can enterthevehicle interior ifthetrunk lid is open whenthe engine isrunning,especially ifthevehicle is in motion.
Always switch offthe engine beforeopeningthe trunk lid.
Never drive withthe trunk lid open.
NOTEDamagetothe trunk lidbyobsta‐cles abovethevehicle
The trunk lid swings upwards when it isopened.
Therefore, make surethatthere is suffi‐cient clearance abovethe trunk lid.
You havethefollowing optionsfor openingthe trunk lid:
Pullthe trunk lid handle.
Pull trunk lidremoteoperating switch1.
Press and holdthe