warning MERCEDES-BENZ C CLASS 2019 Owners Manual

Electric parking brake
Electric parking brake function (applyingautomatically)
\nWARNINGRisk of accident and injuryduetochildren and animals left unatten‐ded inthevehicle
Ifyou leavechildren and animals unattendedinthevehicle,theymay be abletosetthevehicle in motion,forexampleby:
RReleasingthe parking brake.
RShiftingthe automatic transmission outof park position].
RStartingthe engine.
In addition,theymay operatevehicle equip‐ment and become trapped.
Never leavechildren and animals unat‐tended inthevehicle.
When leavingthevehicle, alwaystakethe SmartKeywithyou and lockthevehicle.
The electric parking brake is applied ifthe trans‐mission is in position]and one ofthefollow‐ing conditions is fulfilled:
RThe engine is switched off.
RThe seat belttongue is not inserted intheseat belt buckle ofthe driver's seat andthedriver's door is opened.
Toprevent application: pullthe handle oftheelectric parking brake.
Inthefollowing situations,the electric parkingbrake is also applied:
RActive Distance AssistDISTRONIC is bringingthevehicletoastandstill.
RThe HOLD function iskeepingthevehiclesta‐tionary.
RActiveParking Assist iskeepingthevehiclestationary.
This isthe case if one ofthefollowing conditionsis also fulfilled:
RThe engine is switched off.
RThe seat belttongue is not inserted intheseat belt buckle ofthe driver's seat andthedriver's door is opened.
RThere is a system malfunction.
RThe power supply is insufficient.
RThevehicle isstationaryfor a lengthyperiod.
Whenthe electric parking brake is applied,theredI(USA) or$(Canada) indicator lampappears inthe instrument cluster.
The electric parking brake is not automaticallyapplied ifthe engine is switched offbythe ECOstart/stop function.
Electric parking brake function (releasingautomatically)
The electric parking brake isreleased whenthefollowing conditions are fulfilled:
RThe engine isrunning.
RThe seat belttongue is inserted intothe seatbelt buckle ofthe driver's seat.
RThe transmission is in position[or^andyou depressthe accelerator pedal oryou
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Function oftheradar sensors
Some driving and driving safety systems useradar sensorstomonitorthe area in front of,behind or nexttothevehicle (depending onthevehicle's equipment).
Depending onthevehicle's equipment,theradarsensors are integrated behindthe bumpersand/or behindthe Mercedesstar.Keeptheseparts free of dirt, ice and slush(page 364). The sensors must not be cov‐ered,forexamplebycycleracks,overhangingloads,stickers,foil orfoilstoprotect againststonechipping. Intheevent of damagetothebumpers orradiator grill, orfollowing a collisionimpactingthe bumpers orradiator grill, havethefunction oftheradar sensorschecked at aquali‐fied specialistworkshop. The driver assistancesystem may no longerworkproperly.
Overview of driving systems and drivingsafety systems
Inthis section,you willfind information aboutthefollowing driving systems and driving safetysystems:
R360° Camera (page 206)
RABS (Anti-lockBrakingSystem)(page171)
RActive Distance AssistDISTRONIC(page183)
RAIRMATIC (page197)
RActive Brake Assist (page175)
RActive LaneKeeping Assist (page 222)
RATTENTION ASSIST (page215)
RBAS (BrakeAssistSystem) (page172)
RHillStart Assist (page195)
RDYNAMICBODYCONTROL (page196)
REBD (ElectronicBrakeforceDistribution)(page175)
RESP®(ElectronicStabilityProgram)(page172)
RActive Speed Limit Assist (page187)
RHOLD function (page195)
RSTEER CONTROL (page175)
RActiveSteering Assist (page189)
RActiveParking Assist (page 209)
RParking AssistPARKTRONIC(page 200)
RRear view camera (page 204)
RCruise control (page181)
RFunction of Blind Spot AssistandActive BlindSpot Assistwithexitwarning(page219)
RTraffic Sign Assist (page217)
Function of ABS (Anti-lock Braking System)
ABSregulatesthe brake pressure in critical driv‐ing situations:
RDuring braking, e.g. at full brake applicationor insufficient tire traction,the wheels areprevented from locking.
RVehiclesteerability while braking is ensured.
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If ABS intervenes when braking,you willfeel apulsing inthe brake pedal. The pulsating brakepedal can be an indication of hazardousroadconditions and can serveas aremindertotakeextra care while driving.
System limitationsRABS is active from speeds of approx. 5mph(8 km/h).
RABS may be impaired or may not function if amalfunction has occurred andtheyel‐low%ABSwarning lamp lights up contin‐uously inthe instrument cluster aftertheengine isstarted.
Function ofBAS (Brake Assist System)
\nWARNINGRisk of an accident causedbya malfunction inBAS (Brake AssistSys‐tem)
IfBAS is malfunctioning,the braking distancein an emergency braking situation isincreased.
Depressthe brake pedal with fullforcein emergency braking situations. ABSpreventsthe wheels from locking.
BAS supportsyour emergency braking situationwith additional brakeforce.
Ifyou depressthe brake pedalquickly,BAS isactivated:
RBAS automaticallybooststhe brake pres‐sure.
RBAS can shortenthe braking distance.
RABS preventsthe wheels from locking.
The brakes will function as usual onceyoureleasethe brake pedal.BAS is deactivated.
Function of ESP®(ElectronicStability Pro‐gram)
\nWARNINGRisk of skidding if ESP®ismalfunctioning
If ESP®is malfunctioning, ESP®cannot carryoutvehiclestabilization. In addition,otherdriving safety systems are switched off.
Drive on carefully.
HaveESP®checked at aqualified spe‐cialistworkshop.
\nWARNINGRisk of skidding if ESP®isdeactivated
Ifyou deactivate ESP®, ESP®cannot carryoutvehiclestabilization.
ESP®should onlybe deactivated inthefollowing situations.
Mercedes‑AMGvehicles:always observethenotes inthe Supplement. Otherwise,you mayfailtorecognize dangers.
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pedestrians, orreducethe effects of sucha colli‐sion.
IfActive Brake Assisthas detected arisk of colli‐sion, awarningtone sounds andtheLdis‐tancewarning lamp lights up inthe instrumentcluster.
Ifyou do notreacttothewarning, autonomousbraking can be initiated in critical situations.
In especially critical situations,Active BrakeAssistcan initiateautonomous braking directly.Inthis case,thewarning lamp andwarningtoneoccur simultaneously with the braking applica‐tion.
Ifyou applythe brakeyourself in a critical situa‐tion or applythe brake during autonomous brak‐ing, situation-dependent braking assistanceoccurs. The brake pressure increases uptomax‐imum full-stop braking if necessary.
If autonomous braking or situation-dependentbraking assistance has occurred, display1appears inthe multifunction display andthenautomatically goes out after a short time.
Ifthe autonomous braking function orthe situa‐tion-dependent braking assistance is triggered,additional preventive measuresfor occupant
protection (PRE-SAFE®) may also be initiated.
\nWARNINGRisk of an accident causedbylimited detection performance ofActiveBrake Assist
Active Brake Assistcannot alwaysclearlyidentify objects and complex traffic situa‐tions.
In suchcases,Active Brake Assistmight:
RGive awarning or brake withoutreason
RNotgive awarning or not brake
Always pay careful attentiontothe traf‐fic situation; do notrely onActive BrakeAssistalone.Active Brake Assistis onlyan aid. The driver isresponsibleformaintaining a suitable distancetothevehicle in front,vehicle speed andforbraking in good time.
Be preparedtobrake or swerveif nec‐essary.
Also observethe system limitations ofActiveBrake Assist.
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The individual subfunctions areavailable inthefollowing speedranges:Distancewarning function
The distancewarning function issues awarninginthefollowing situations:
RFrom approximately 4mph (7 km/h), ifyourvehicle is critically closetoavehicle or
pedestrian,you will hear an intermittentwarningtone andtheLdistancewarninglamp lights up inthe instrument cluster.
Brake immediately ortakeevasive action, provi‐ded it is safetodo so andthe traffic situationallowsthis.
The distancewarning function can aidyou inthefollowing situations with an intermittentwarningtone and awarning lamp:
Vehiclestraveling infront
StationaryvehiclesCrossingvehiclesMovingpedestriansStationarypedestriansCrossingcyclistsCyclists travel‐ing in frontStationarycyclists
Vehicleswithout Driv‐ing Assis‐tance pack‐age
Uptoapprox.155mph(250 km/h)
Uptoapprox.50mph(80 km/h)
NoreactionUptoapprox.50mph(80 km/h)
NoreactionUptoapprox.37mph(60 km/h)
Uptoapprox.50mph(80 km/h)
Noreaction
Vehicles withDriving Assis‐tance pack‐age
Uptoapprox.155mph(250 km/h)
Uptoapprox.62mph(100 km/h)
Uptoapprox.43mph(70 km/h)
Uptoapprox.50mph(80 km/h)
Uptoapprox.43mph(70 km/h)
Uptoapprox.43mph(70 km/h)
Uptoapprox.50mph(80 km/h)
Uptoapprox.43mph(70 km/h)
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RAssistancethrough power-assistedsteering ifit detects a swerving maneuver.
RActivationbyan abruptsteering movementduring a swerving maneuver.
RAssistance during swerving andstraighteningofthevehicle.
RReaction from a speed of approximately12mph (20 km/h) uptoa speed of approx‐imately 43mph (70 km/h).
You can preventthe assistance at any timebyactivelysteering.
\nWARNINGRisk of an accident despiteEvasiveSteering Assist
EvasiveSteering Assist cannotalways clearlyidentify objects and complex traffic situa‐tions.
In addition,thesteering support of EvasiveSteering Assist isgenerally not sufficienttoavoid a collision.
In such cases EvasiveSteering Assist can:
Rgive an unnecessarywarning or provideassistance
Rnot giveawarning or not provide assis‐tance
Always pay careful attentiontothe traf‐fic situation; do notrely on EvasiveSteering Assist alone.
Bereadytobrake andtakeevasiveaction if necessary.
Preventthe assistancebyactivelysteer‐ing in non-critical driving situations.
Drive at an appropriate speed if pedes‐trians are closetothe path ofyourvehi‐cle.
System limitationsFull system performance is notavailablefor afew seconds after switching onthe ignition orafter driving off.
The system may be impaired or may not functioninthefollowing situations:
RIn snow,rain,fog, heavy spray, ifthere isglare, in direct sunlight or ingreatlyvaryingambient light.
RIfthe sensors are dirty,fogged up, damagedor covered.
RIfthe sensors are impaired duetointerfer‐ence fromotherradar sources, e.g.strongradarreflections in parkinggarages.
RIf a loss of tire pressure or a defective tirehas been detected and displayed.
RIn complex traffic situations whereobjectscannotalways be clearly identified.
RIf pedestrians orvehicles movequickly intothe sensor detectionrange.
RIf pedestrians are hiddenby other objects.
RIfthe typical outline of a pedestrian cannotbe distinguished fromthe background.
RIf a pedestrian is not detected as such, e.g.duetospecial clothing orother objects.
ROn bends with a tightradius.
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SettingActive Brake Assist
Multimedia system:
VehiclekAssistanceActive Brake Assist
Vehicles without Driving AssistancePack‐age:The settings can be made afterstartingthevehicle.
Vehicles with Driving AssistancePackage:The settings can be made whenthe ignition isswitched on.
Thefollowing settings areavailable:
REarly
RMedium
RLate
Select a setting.
Your selection isretained whenthevehicle isnextstarted.
DeactivatingActive Brake Assist
It isrecommendedthatyou always leaveActive Brake Assistactivated.
SelectOff.The distancewarning function andthe auton‐omous braking function are deactivated.
Vehicles without Driving AssistancePack‐age:Whenthevehicle is nextstarted,themedium setting is automatically selected.
Vehicles with Driving AssistancePack‐age:EvasiveSteering Assist is notavailable.Whenthe ignition is nextstarted,themedium setting is selected automaticallyandEvasiveSteering Assist isavailable.
IfActive Brake Assistis deactivated,the

1Cruise control is selected
2Speed is saved, cruise control is deactivated
3Speed is saved, cruise control is activated
The segments betweenthestored speed andthe end ofthe segment display light up inthe speedometer.
System limitationsCruise control may be unabletomaintainthestored speed on uphill gradients. Thestoredspeed isresumed whenthe gradientevens out.
Change into a lowergear in good time on longandsteep downhill gradients.Takeparticularnoteofthis when driving a ladenvehicle. By
doing so,you will make use ofthe engine's brak‐ing effect. Thisrelievesthe load onthe brakesystem and preventsthe brakes fromoverheat‐ing andwearingtooquickly.
Do not use cruise control inthefollowing situa‐tions:
RIn traffic situations whichrequire frequentchanges of speed, e.g. in heavy traffic, onwindingroads.
ROn slipperyroads.Accelerating can causethe drive wheelstolose traction andthevehicle couldthen skid.
RIfyou are driving when visibility is poor.
Operating cruise control
\nWARNINGRisk of accident duetostoredspeed
Ifyou call upthestored speed andthis islowerthanyour current speed,thevehicledecelerates.
Takeinto accountthe traffic situationbefore calling upthestored speed.
Requirements:RESP®must be activated, but not intervening.
RThe driven speed is at least15mph(20 km/h).
RThe transmission is in position[.
Toactivate cruise control:pressrockerswitch1up.
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vehicles withthe Driving AssistancePackage, intherange between15mph (20 km/h) and130mph (210km/h).
Otherfeatures ofActive Distance AssistDISTRONIC:
RAdjuststhe drivingstyle depending ontheselected drive program (fuel-saving, comfort‐able or dynamic) (page153)
RVehicles with Driving AssistancePack‐age:reactstostationaryvehicles detected inurban speedranges (except bicycles andmotorcycles).
RInitiates accelerationtothestored speed ifthe turn signal indicator is switched ontochangetotheovertaking lane.
RVehicles with Driving AssistancePack‐age:takes one-sidedovertakingrestrictionsinto account on highways or on multi-laneroads with separateroadways (country-dependent).
Vehicles withActiveParking Assist and Driv‐ing AssistancePackage:ifthevehicle hasbeen brakedtoastandstill on multi-lane,struc‐
turallyseparateroadwaysbyActive DistanceAssistDISTRONIC, it can automaticallyfollowthevehicle in front driving off again within30 seconds. If a critical situation is detectedwhen driving off, a visual and acousticwarning isgiven indicatingthatthe driver must nowtakecontrol ofthevehicle. Thevehicle is not acceler‐ated any further.
Active Distance AssistDISTRONIC is only an aid.The driver isresponsibleforkeeping a safe dis‐tancetothevehicle in front,forvehicle speedandfor braking in good time.
System limitations
The system may be impaired or may not functioninthefollowing instances:
RIn snow,rain,fog, heavy spray, ifthere isglare, in direct sunlight or ingreatlyvaryingambient light.
RThe windshield inthe area ofthe camera isdirty,fogged up, damaged or covered.
RIftheradar sensors are dirty or covered.
RIn parkinggarages or onroads withsteepuphill or downhill gradients.
RIfthere are narrowvehicles in front, such asbicycles or motorcycles.
In addition, on slipperyroads, braking or accel‐erating can cause one or several wheelstolosetraction andthevehicle couldthen skid.
Do not useActive Distance AssistDISTRONIC inthese situations.
\nWARNINGRisk of accident from acceler‐ation or brakingbyActive DistanceAssistDISTRONIC
Active Distance AssistDISTRONIC may accel‐erate or brake inthefollowing cases,forexample:
RIfthevehicle pullsawayusingActive Dis‐tance AssistDISTRONIC.
RIfthestored speed is called up and isconsiderablyfaster or slowerthanthecurrently driven speed.
RIfActive Distance AssistDISTRONIC nolonger detects avehicle in front or doesnotreacttorelevant objects.
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Always carefully observethe traffic con‐ditions and bereadytobrake at alltimes.
Takeinto accountthe traffic situationbefore calling upthestored speed.
\nWARNINGRisk of accident duetoinsuf‐ficient decelerationbyActive DistanceAssistDISTRONIC
Active Distance AssistDISTRONIC brakesyourvehicle with upto50% ofthe maximumpossible deceleration. Ifthis deceleration isnot sufficient,Active Distance AssistDISTRONIC alertsyou with a visual andacousticwarning.
Inthese cases, adjustyour speed andkeep a sufficient distance.
Brakethevehicleyourself and/ortakeevasive action.
\nWARNINGRisk of accident if detectionfunction ofActive Distance AssistDISTRONIC is impaired
Active Distance AssistDISTRONIC does notreact or has a limitedreaction:
Rwhen driving on a different lane or whenchanging lanes
Rtopedestrians, animals, bicycles orsta‐tionaryvehicles, or unexpected obstacles
Rtocomplextraffic conditions
Rtooncomingvehicles and crossing traffic
As aresult,Active Distance AssistDISTRONIC may neither givewarnings norintervene in suchsituations.
Always observethe traffic conditionscarefully andreact accordingly.
OperatingActive Distance Assist DISTRONIC
Requirements:RThevehicle has beenstarted.
RThe electric parking brake isreleased.
RESP®is activated and is not intervening.
RThe transmission is in position[.
RAllthe doors are closed.
RCheck oftheradar sensor system has beensuccessfully completed (vehicle travelingfasterthan12mph (20 km/h)).
RParking AssistPARKTRONIC is not beingusedtoparkthevehicle ortoexit from aparking space.
RThevehicle does not skid.
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