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\nWARNINGRisk of an accident despiteEvasiveSteering Assist
EvasiveSteering Assist cannotalways clearlyidentify objects and complex traffic situa‐tions.
In addition,thesteering support of EvasiveSteering Assist isgenerallynot 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.
Also observethe system limitations of EvasiveSteering Assist.
System limitations
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 malfunction dueto otherradarsource interference,forexamplestrongradarreflections in parkinggarages.
RIf a loss of tire pressure or a defective tirehas been detected and displayed.
The system may notreact correctly:
RIn complextraffic situations whereobjectscannotalways be clearly identified.
RTopedestrians orvehicles iftheymovequickly intothe sensor detectionrange.
RTopedestrians who are hiddenby otherobjects.
RIfthe typical outline of a pedestrian cannotbe distinguished fromthe background.
RIf a pedestrian is notrecognized as such, e.g.duetospecial clothing orother objects.
ROn bends with a tightradius.
SettingActive Brake Assist
Multimedia system:
VehiclekAssistance Active 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
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turally separateroadwaysbyActive 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 in greatlyvaryingambient 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.
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.
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When Distance AssistDISTRONIC is active,thefunction adjuststhe speed depending ontherouteevents ahead. Depending onthe drive pro‐gram selected,thevehicle negotiatestherouteevent ahead in a fuel-saving, comfortable ordynamic manner. Whentherouteevent has beenpassed,thevehicle accelerates againtothestored speed. The set distancetothevehicle infront,vehicles detected ahead and speedrestric‐tions ahead aretaken into account.
Route-based speed adjustment canbyconfig‐ured inthe multimedia system (→page183).
Routeevents ahead are:
RBends
RT-intersections, traffic circles andtollsta‐tions
RTurns andexits
RTraffic jams ahead (only withLiveTraffic(→page 287))
Whenthetollstation isreached,Active Dis‐tance AssistDISTRONIC adoptsthe speed asthestored speed.
Also,the speed isreduced ifthe turn signaltochange lanes is switched on and one ofthefol‐lowing situations is detected:
RTurning off at intersections
RDriving on slowing-down lanes
RDriving on lanes adjacenttoslowing-downlanes
The driver isresponsibleforchoosingtherightspeed and observingotherroad users. Thisapplies in particulartointersections, traffic cir‐cles and traffic lights, asroute-based speedadaptation does not brakethevehicletoastand‐still.
Whenroute guidance is active,thefirst speedadjustment is carried out automatically.Iftheturn signal indicator is switched on,the selectedroute is confirmed and further speed adjustmentis activated.
Speed adjustment is canceled inthefollowingcases:
RIfthe turn signal indicator is switched offbeforetherouteevent.
RIfthe driver depressesthe accelerator orbrake pedal duringthe process.
System limitationsRoute-based speed adaptation does nottakeright ofwayregulations into account. The driverisresponsiblefor complying withroad trafficregulations and driving at a suitable speed.
In difficult conditions (e.g. unclearroads, narrowlanes,wetroad surfaces, snow or ice) or whendriving witha trailer,the speed adjustment madebythe system may not always be suitable. Inthese situationsthe driver must interveneaccordingly.
\nWARNINGRisk of accident in spiteofroute-based speed adjustment
Route-based speed adjustment might mal‐function or betemporarily unavailable inthefollowing situations:
RIf map data is not uptodate oravailable
RIfyou do notfollowthe selectedrouteguidance
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Ifthe driver does notsteerthevehicleover along period, or has nottaken hold ofthesteeringwheel, arepeatedwarningtone sounds in addi‐tiontothe visualwarning message (dependingonthe country).
Thewarning message does not appear or disap‐pears if one ofthefollowing conditions are met:
RThe driversteersthevehicle.
RThe driver presses asteering wheel button oroperatesTouch Control.
ActiveSteering Assist is only an aid. The driver isresponsibleforthe distancetothevehicle infront,forvehicle speed,for braking in good timeandforstaying in lane. Beforechanging lanes,the driver must make surethatthe neighboringlane is free (glanceoverthe shoulder).
System limitationsActiveSteering Assist has a limitedsteeringtor‐quefor lateral guidance. In some cases,thesteering intervention is not sufficienttokeepthevehicle inthe lane ortodrive pastexits.
The system may be impaired or may not functioninthefollowing instances:
RIn snow,rain,fog, heavy spray, ifthere isglare, direct sunlight,greatlyvarying ambientlight,reflections orstrong shadowsontheroadway.
RInsufficientroad illumination.
RThe windshield inthe area ofthe camera isdirty,fogged up, damaged or covered.
RAbsence of lane markings, or several unclearlane markings, or ifthe markingschangerap‐idly.
RThe distancetothevehicle in front istoosmall andthe lane markingsthus cannot bedetected.
RTheroad is narrow and winding.
RObstacles onthe lane or projecting out intothe lane.
The system does not provide assistance inthefollowing conditions:
ROn tight bends, intersections,tollstations,traffic circles and when turning.
RWhen activelychanging lane without switch‐ing onthe turn signal.
RWhenthe tire pressure istoo low.
\nWARNINGRisk of accident ifActiveSteering Assist unexpectedlystops func‐tioning
Ifthe system limitations ofActiveSteeringAssist arereachedthere is no guaranteethatthe system willremain active or willkeepthevehicle in lane.
Alwayskeepyour hands onthesteeringwheel and observethe traffic carefully.
Alwayssteerthevehicle paying atten‐tiontotraffic conditions.
\nWARNINGRisk of accident ifActiveSteering Assist unexpectedly intervenes
A malfunction inthe detection of lane mark‐ings and objects can occur.
This could cause unexpectedsteering inter‐vention.
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must be initiated. An immediate lanechange isonly possible on freeway sections without speedlimits.
Ifthe system is impaired,Active Lane ChangeAssistmay be canceled. If it is canceled,theLane Change Canceledmessage appears inthemultifunction display and awarningtone sounds.
\nWARNINGRisk of accident fromchang‐ing lanetoan occupied adjacent lane
Lane ChangeAssistcannot alwaysdetectclearlyifthe adjacent lane is free.
The lanechange might be initiated althoughthe adjacent lane is not free.
Beforechanging lanes, make surethatthe neighboring lane is free andthere isno dangerto otherroad users.
Monitorthe lanechange.
\nWARNINGRisk of accident if LaneChange Assistunexpectedlystops func‐tioning
Ifthe system limitationsfor Lane ChangeAssist havebeenreached,there is no guar‐anteethatthe system willremain active.
Lane Change Assist cannotthen assistyoubyapplyingsteeringtorques.
Always monitorthe lanechange andkeepyour hands onthesteering wheel.Observethe traffic conditions andsteerand/or brake if necessary.
System limitationsThe system limitations ofActiveSteering AssistapplytoActive Lane Change Assist(→page183).
The system may also be impaired or may notfunction inthefollowing situations:
RThe sensors intherear bumper are dirty,damaged or covered,for instanceby asticker or ice and snow.
RTheexterior lighting is malfunctioning.
Activating/deactivatingActive Lane ChangeAssistMultimedia system:
VehiclekAssistance
SelectLane Change Assist.
Activatesor deactivateSthe function.
Function ofActive EmergencyStop AssistIfthe driver continually ignoresthe visual oracousticwarningtoputtheir hands onthesteer‐ing wheel,theBeginning Emergency Stopmes‐sage appears inthe multifunction display.Ifthedriverstill does notrespond,Active DistanceAssistDISTRONICreducesthe speed. Thevehi‐cle is decelerated instagestoastandstill.Atspeeds below 40mph (60 km/h)the hazardwarning lights switch on automatically.
Whenthevehicle isstationary,thefollowingactions are carried out:
RThevehicle is secured withthe electric park‐ing brake
RActive Distance AssistDISTRONIC is ended
RThevehicle is unlocked
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3Active Distance AssistDISTRONIC active,speedstored, novehicle detected (brightvehicle symbol)
4Active Distance AssistDISTRONIC active,speedstored,vehicle detected (greenvehi‐cle symbol)
5Active Distance AssistDISTRONIC androute-based speed adaptation active, speedstored
On highways or high-speed majorroads,thegreençvehicle symbol is displayed cycli‐cally whenthevehicle isreadytopullaway.
SpeedometerThestored speed is highlighted onthe speedom‐eter. Ifthe speed ofthevehicle in front orthespeed adjustment is lessthanthestored speedduetotherouteevent ahead,the segments inthe speedometer light up.Activation or deactiva‐tion ofActive Distance AssistDISTRONIC, aswell as alterationstothe speed duetomanual orautomatic adoption ofthe speed limit, are dis‐played inthe controlfeedback ofthe multifunc‐tion display on a single line.
ActiveSteering Assiststatus display
1Graysteering wheel:ActiveSteering Assistswitched on and passive
2Greensteering wheel:ActiveSteering Assistswitched on and active
3Flashingsteering wheel: prompttothe drivertoactively confirmor transition from activetopassivestatus, system limitation detected
Duringthe transition fromthe activetopassivestatus, symbol3is shown as enlarged andflashesyellow.Oncethe system is passive, sym‐bol1is shown as grayinthe multifunction dis‐play.
Function of HillStart Assist
HillStart Assist holdsthevehiclefor a shorttime when pullingawayon a hill underthefol‐lowing conditions:
RVehicles with automatic transmission:The transmission is in position[or^.
RThe electric parking brake isreleased.
This givesyou enough timetomoveyourfootfromthe brake pedaltothe accelerator pedaland depress it beforethevehicle beginstorollaway.
\nWARNINGRisk of accident and injuryduetothevehiclerollingaway
After a short time, HillStart Assist no longerholdsthevehicle and it canrollaway.
Therefore, swiftly moveyourfootfromthe brake pedaltothe acceleratorpedal. Never attempttoleavethevehi‐cle if it is being heldbyHillStart Assist.
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Settingthevehicle level
\nWARNINGRisk of accident becausevehicle level istoo high
Ifyou drive at a highervehicle level,the driv‐ingcharacteristics may be impaired duetothe highervehicle center of gravity.
Thevehicle can drift outwards,forexample,whensteering or cornering.
Alwayschoose avehicle level which issuitedtothe drivingstyle andtheroadsurface conditions.
\nWARNINGRisk of entrapment fromvehi‐cle lowering
When loweringthevehicle, people couldbecome trapped iftheir limbs are betweenthevehicle body andthe tires or underneaththevehicle.
Make sure no one is underneaththevehicle or inthe immediate vicinity ofthe wheel arches whenyou lowerthevehicle.
\nWARNINGRisk of entrapment fromvehi‐cle lowering
Vehicles with AIRBODYCONTROL orlevel control system:Whenyou unload lug‐gageor leavethevehicle,thevehiclefirstrises slightly andthenreturnstothe set levelshortly afterwards.
You or anyone else inthe vicinity ofthewheel arches orthe underbody couldthusbecome trapped.
Thevehicle can also be lowered after beinglocked.
When leavingthevehicle, make surethat nobody is inthe vicinity ofthewheel arches orthe underbody.
Requirements:RThevehicle has beenstarted.
RThevehicle must not be movingfasterthan37mph (60 km/h).
Raisingthevehicle
Press button1.Indicator lamp2lights up.
Thevehicle is settothe high level.
Your selection is saved.
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SelectWarn Early.
Activatesor deactivateSthe function.
Activating/deactivating audiofadeoutYou can specify whetherthevolume of a mediasource inthe multimedia system istobereduced whenParking AssistPARKTRONIC givesan audiblewarning.
SelectAudio Fadeout During Warning Tones.
Activatesor deactivateSthe function.
Reversing camera
Function oftherear view camera
Whenyou engagereversegear,the image fromrear view camera1is shown inthe multimediasystem. Dynamic guide lines showthe paththevehicle willtakewiththesteering wheel in itscurrent position. This helpsyoutoorientyour‐self andtoavoid obstacles when backing up.
Therear view camera is onlyan aid. It is not asubstituteforyour attentiontothe surroundings.Theresponsibilityfor safe maneuvering andparkingremains withyou. Make surethatthereare no persons, animals or objectsetc., inthemaneuvering area while maneuvering and park‐ing.
You can select fromthefollowing views:
RNormal view
RWide-angle view
RTrailer view
The area behindthevehicle is displayed as amirror image, as inthe insiderearview mirror.
System limitations
Therear view camera will not function or willonly partially function inthefollowing situations:
RIfthe trunk lid ortailgate is open.
RThere is heavyrain, snow orfog.
RThe ambient light is poor, e.g. at night.
RThe camera lens is obstructed, dirty orfog‐ged up. Observethe notes on cleaningtherear view camera (→page 360).
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Normal view
1Yellow lane markingthe coursethe tires willtakeatthe currentsteering wheel angle(dynamic)
2Yellow guide line,vehicle width (driven sur‐face) depending onthe currentsteeringwheel angle (dynamic)
3Red guide line at a distance of approximately12in (0.3 m) fromtherear area
4Yellowwarning display ofParking AssistPARKTRONIC: obstacles are at a distance ofbetween approximately 2.0ft(0.6 m) and3.3ft(1.0 m)
5Redwarning display ofParking AssistPARKTRONIC: obstacles areveryclose(approximately1.0ft(0.3 m) or less)
6Orangewarning display ofParking AssistPARKTRONIC: obstacles are a medium dis‐tanceaway(between approximately1.0ft(0.3 m) and 2.0ft(0.6 m))
Ifthe entire systemfails,the inner segmentsofthewarning display are shown inred. Theindicator lamp onthePARKTRONIC buttonlights up andtheésymbol appears inthe multifunction display.Ifthe systemfails attherear:RTherear segments are shown inredwhen backing up.
RTherear segments are hidden when driv‐ingforwards.
WhenActiveParking Assist is active,thelanes are displayed in green.IfParking AssistPARKTRONIC is deactivated,thewarning displayfades out.
Wide-angle view
360° camera
Function ofthe 360° CameraThe 360° Camera is a systemthat consists offour cameras. The cameras coverthe immediatevehicle surroundings. The system assistsyou,e.g. when parking or atexits withreduced visibil‐ity.
The 360° Camera is only an aid. It is not a sub‐stituteforyour attentiontothe surroundings.Theresponsibilityfor safe maneuvering andparkingremains withyou. Make surethatthereare no persons, animals or objectsetc., inthe
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WhenParking AssistPARKTRONIC is operationaland no object is detected,the segments ofthewarning display are shown ingray.
Ifthe entire systemfails,the segments ofthewarning display are shown inred. Theindicator lamp onthePARKTRONIC buttonlights up andtheésymbol appears inthe multifunction display.
Ifthe systemfails attherear,the display ofthe segmentschanges asfollows:
RTherear segments are shown inredwhen backing up.
RTherear segments are hidden when driv‐ingforwards.
IfParking AssistPARKTRONIC is deactivated,thewarning displayfades out.
Guide lines
1Yellow lane markingthe coursethe tires willtakeatthe currentsteering wheel angle(dynamic)
2Yellow guide line,vehicle width (driven sur‐face) depending onthe currentsteeringwheel angle (dynamic)
3Red guide line at a distance of approximately1.0 in (0.3 m) fromtherear area
4Mark at a distance of approx. 3.3ft(1.0 m)
WhenActiveParking Assist is active,thelanes are displayed in green.
The guide lines inthe multimedia system dis‐play showthe distancestoyourvehicle. Thedistances only applytoroad level.
Side view ofthe mirror camerasThe sides ofthevehicle can be seen inthis view.
1Guide line ofexternalvehicle dimensionswith outside mirrorsfolded out
2Marker ofthe wheel contact points
SystemfailureIfthere is no operationalreadiness,thefollowingmessage appears inthe multimedia system:
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