2019 MERCEDES-BENZ C CLASS change wheel

RApplication-specificvoice commandsareonlyavailableforthe active application.
OncetheVoice Control System isstarted anautocue is shown. Apart fromtheavailablevoicecommandsforthe application currently active,this also citesexamplevoice commandsforother applications which are not active. Inthisway,you will befamiliar morequickly withtheavailablevoice commands. The list can be scrol‐led or it can be operatedbyspeech orthe con‐troller/touchpad.
Information onthe language setting
You canchangethe language oftheVoice Con‐trol System viathe system language settings. Ifthe set system language is not supportedbytheVoice Control System, English will be selected.
TheVoice Control System isavailable in English,French,Portuguese and Spanish.
UsingtheVoice Control System effectively
Features of audible help functions
Youreceiveinformation and helpforthefollow‐ingtopics:
ROptimum operation:saythebrief instruc-tionvoice command.
RCurrent application:onthe multifunctionsteering wheel, pressthe£rocker switchup and saytheHelpvoice command.
RContinued dialog:saytheHelpvoice com‐mand during avoice dialog.
RSpecific function:sayvoice commandsforthe desired function, e.g.Help telephone.
Notes on howtoimprovespeechquality
IftheVoice Control System does not understandyou:
Ronly operatetheVoice Control System fromthe driver's seat.
Rsaythevoice commands coherently andclearly, but do notexaggeratethewords.
Ravoid loud noisesthat cause interferencewhile making avoice command entry, e.g.the blower.
Avoicetag inthe address book is notrecog‐nized:
Ronly createsensible address book entries inthe system/mobile phone, e.g. enter sur‐name andfirst name inthe correctfield.
Rdo not use any abbreviations, unnecessaryspaces or specialcharacters.
If astation list entryis notrecognized:
RsaytheRead out station listvoice command.
Essentialvoice commands
Overview of switchvoice commands
Switchvoice commands can be usedtoopencertain applications. Thevoice command selec‐tion can be usedregardless ofthe applicationthat is currently active.
Voice Control System241

Toswitch on:changethe media source orturnvolume control1.
Adjusting thevolume
Onthe multifunctionsteering wheelOnthe multimedia system
Turnvolume control1.Thevolume ofthe currentradio or mediasource is set. Thevolume ofother audiosources can be adjusted separately.
Adjustthis inthefollowing situations:
Rduring a traffic announcement
Rduring a navigation announcement
Thevolume ofthe navigation announce‐mentchanges in accordance withthevol‐ume ofthe current media source.
Rduring atelephone call
Rwhen entering orexiting a parking spacewhile usingActiveParking Assist
or
SelectSysteminthe multimedia system.
SelectAudio.
Select avolume setting.
Setthevolume.
Enteringcharacters
Usingthecharacter input function
\nWARNINGRisk of distraction from infor‐mation systems and communicationsequipment
Ifyou operate information and communica‐tion equipment integrated inthevehiclewhen driving,you will be distracted fromthe
Multimedia system261

ENERGIZING comfort programoverviewProgramoverview
ProgramFunction
RefreshCan maketargetedchangestothe interior climatetorefreshvehicle occupants. Cooling airflowand ioniza‐tion purifythe air. Thevehicle interior is illuminated with cool colors andthe seats areventilated.
WarmthCan increasethe comfort level ofthe occupants. Thevehicle's panel, seat andsteering wheel heater pro‐duce a cozywarmth. The air is purified using ionization and a pleasant fragrance isreleased. Thevehicleinterior is illuminated withwarmlighting.
VitalityCan counteractfatigue in monotonous driving situations.Fast-paced music and a vitalizing massagepro‐vide invigoratingstimulationforthevehicle occupants. The air is purified using ionization and a pleasantfragrance isreleased. Thevehicle interior is illuminated in astimulating hue andthe seat isventilated.
PleasureCan promotea positive mood inthe occupants. Moderatelyfastmusic is played and a massage program isactivated. The air is purified using ionization and a pleasant fragrance isreleased. Thevehicle interior isilluminated with amicable lighting.
Well beingCan aidthe physical and mentalrelaxation of occupants. A back massage combined with localwarmthpro‐viderelaxation. The air is purified using ionization and a pleasant fragrance isreleased. The music playerplaysselections of calming music andthevehicle interior is illuminated with pleasant lighting.
TrainingCan counteractthe onset of muscletension, limbsfalling asleep orstress withtargetedrelaxation orstim‐ulationexercises. Theexercises are demonstrated in short videos. The air is purified using ionization and apleasant fragrance isreleased. Thevehicle interior is illuminated with lighting appropriatetotheexercise.
Multimedia system275

RPossible lane2
Inthis lane,you will onlybe abletocompletethe nextchange of direction.
RLane notrecommended3
Inthis lane,you will not be abletocompletethe nextchange of direction withoutchang‐ing lane.
Duringthechange of direction, new lanes maybe added.
Lanerecommendations can also be dis‐played inthe Instrument Display and intheHead-up Display.
Overview of destinationreachedOncethe destination isreached,you will seetheÍcheckeredflag.Route guidance isfinished.
When an intermediatedestination has beenreached,you will seethe intermediate destina‐tionflag withthe number ofyourÎinter‐mediate destination. Afterthis,route guidance iscontinued.
Switching navigation announcements on/off
Requirements:RRoute guidance is active.
Toswitch off:pressthevolume control onthe multifunctionsteering wheel during anavigation announcement (page 260).
or
Pressthevolume control onthe center con‐sole during a navigation announcement(page 260).TheVoice Guidance has been deactivated.message appears.
or
Showthe navigation menu (page277).
Select!Voice Guidance.The symbolchangesto#.Toactivate:select#Voice Guidance.The current navigation announcement isplayed.
Inthefollowing situations, navigationannouncements are switched on automati‐cally:
RA newroute guidance isstarted.
RTheroute isrecalculated.
You can add and call upthis function as afavoriteunderVoice Guidance On/Off.
Switching navigation announcements on/offduring a phone call
SelectSystem.
SelectõAudio.
SelectNavigation and Traffic Announce-ments.
SwitchVoice Guidance During CallonsoroffS.
Adjusting thevolume of navigationannouncements
Requirements:RRoute guidance is active.
Onthe multifunctionsteering wheel oronthe multimedia system:turnthevolume
290Multimedia system

Flat tire
Notes onflat tires
\nWARNINGRisk of accident duetoaflattire
Aflat tire severelyaffectsthe drivingcharac‐teristics aswell asthesteering and brakingofthevehicle.
Tires withoutrun-flatcharacteristics:
Do not drive on with aflat tire.
Changetheflat tire immediately with anemergency sparewheel or spare wheel.Alternatively,consult aqualified spe‐cialistworkshop.
Tires withrun-flatcharacteristics:
Observethe information andwarningnotes on MOExtended tires (run-flattires).
Intheevent of aflat tire,thefollowing optionsareavailable depending onyourvehicle's equip‐ment:
RVehicles with MOExtended tires:it is pos‐sibletocontinuethe journeyfor a shortperiod of time. Make sureyou observethenotes on MOExtended tires (run-flat tire)(page370).
RVehicles with a TIREFIT kit:you canrepairthe tires sothat it is possibletocontinuethejourneyfor a short period of time.Todothis,usethe TIREFIT kit (page371).
RVehicles with Mercedes me connect:youcan make a callforRoadside Assistance viatheoverhead control panel inthe case of abreakdown (page319).
RAllvehicles:changethe wheel(page415).
Notes on MOExtended tires (run-flat tire)
\nWARNINGRisk of accident when drivingin emergency mode
When driving in emergency mode,the han‐dlingcharacteristics are impaired. e.g. whencornering, when acceleratingstronglyandwhen braking.
Do notexceedthe permissible maxi‐mum speedfor MOExtended tires.
Avoid any abruptsteering and drivingmaneuvers aswell as drivingoverobstacles (curbs, pot holes, off-road).This applies, in particular,toa loadedvehicle.
Stop driving inthe emergency mode ifyou notice:
Rbanging noise
Rvehicle vibration
Rsmoke which smells likerubber
Rcontinuous ESP®intervention
Rcracksin tire sidewalls
37 0Breakdown assistance

RTireinflation compressor
RGloves (depending onthevehicle equipment)
TIREFIT kitstorage location: (page371)
You can use TIREFIT tire sealanttoseal perfora‐tion damageof upto0.16in (4 mm), particularlythose inthe tire contact surface.You can useTIREFIT in outsidetemperatures downto-4 °F(-20 °C).
\nWARNINGRisk of accident when usingtire sealant.
Inthefollowing situations,the tire sealant isunabletoprovide sufficient breakdown assis‐tance, as it is unabletosealthe tire properly:
RThere are cuts or punctures inthe tirelargerthanthose previously mentioned.
RThe wheelrim is damaged.
RYou havedriven at averylow tire pres‐sure or on aflat tire.
Do not continue driving.
Consult aqualified specialistworkshop.
\nWARNINGRisk of injuryand poisoningfrom tire sealant
The tire sealant is harmful and causes irrita‐tion. Do not allow ittocome into contactwith the skin,eyes or clothing, and do notswallow it. Do not inhale tire sealant fumes.Keepthe tire sealantawayfromchildren.
Ifyou come into contact withthe tire sealant,observethefollowing:
Rinse offthe tire sealant fromyour skinimmediately usingwater.
If tire sealantgets intoyoureyes,thor‐oughlyrinse outtheeyes using cleanwater.
If tire sealant has been swallowed,immediatelyrinse outthe mouththor‐oughly and drink plenty ofwater.Do notinducevomiting and seek medicalattention immediately.
Change out of any clothes contamina‐ted with tire sealant immediately.
If allergicreactions occur, seek medicalattention immediately.
NOTEOverheating duetothe tire infla‐tion compressorrunningtoo long
Do notrunthe tire inflation compressorfor longerthanten minutes withoutinterruption.
Comply withthe manufacturer's safety notes onthesticker onthe tire inflation compressor.
Havethe tire sealant bottlereplaced at aquali‐fied specialistworkshopeveryfiveyears.
Do notremoveanyforeign objects whichhaveenteredthe tire.
372Breakdown assistance

Tirepressure
Notes on tire pressure
\nWARNINGRisk of accident duetoinsuf‐ficient orexcessive tire pressure
Underinflated oroverinflated tires posethefollowingrisks:
RThe tires may burst, especially astheload andvehicle speed increase.
RThe tires maywearexcessively and/orunevenly,which maygreatlyimpair tiretraction.
RThe drivingcharacteristics, aswell assteering and braking, may be greatlyimpaired.
Comply withtherecommended tirepressure andcheckthe tire pressure ofall tires includingthe spare wheelregu‐larly:
Rat least once a month
Rwhenthe loadchanges
Rbefore embarking on a longer journey
Rif operating conditionschange, e.g. off-road driving
Adjustthe tire pressure as necessary.
Driving withtire pressurethat istoo high ortoolow can:
RShortenthe service life ofthe tires.
RCause increased tire damage.
RAdversely affect drivingcharacteristics andthus driving safety,e.g. dueto hydroplaning.
\nWARNINGRisk of an accident duetoinsufficient tire pressure
Tires with pressurethat istoo low canover‐heat and burstas aresult.
In addition,theyalso suffer fromexcessiveand/or irregularwear, which can significantlyimpairthe braking properties andthe han‐dlingcharacteristics.
Avoidexcessively low tire pressures inallthe tires, includingthe spare wheel.
Tirepressure which istoo low can cause:
RTiredefects as aresult ofoverheating
RImpaired handlingcharacteristics
RIrregularwear
RIncreased fuel consumption
\nWARNINGRisk of accident fromexces‐sive tire pressure
Tires withexcessively high pressure canburstbecausetheyare damaged more easilybyhighwayfill, pot holesetc.
In addition,theyalso suffer from irregularwear, which can significantly impairthe brak‐ing properties andthe handlingcharacteris‐tics.
Avoidexcessively high tire pressures inallthe tires, includingthe spare wheel.
Excessively high tire pressure canresult in:
RIncreased braking distance
RImpaired handlingcharacteristics
RIrregularwear
392Wheels and tires

allowthe TPMStocontinuetofunction prop‐erly.
The systemchecksthe tire pressure andthe tiretemperature ofthe tires installed onthevehiclebymeans of a tire pressuresensor.
New tire pressure sensors, e.g. in winter tires,are automaticallytaught-in duringthefirst jour‐neytheyare used.
The tire pressure andthe tiretemperatureappear inthe multifunction display(page 396).
Ifthere is a substantial pressure loss or ifthetiretemperature isexcessive,you will bewarnedinthefollowingways:
Rvia display messages (page 466)
Rviathewwarning lamp inthe instrumentcluster (page 490)
The tire pressuremonitoring system is only anaid. It isthe driver'sresponsibilitytosetthe tirepressuretotherecommended cold tire pressuresuitableforthe operating situation. Setthe tirepressurefor cold tires using a tire pressure
gauge.Notethatthe correct tire pressureforthecurrent operating situation mustfirst betaught-intothe tire pressure monitoring system.
In most cases,the tire pressure monitoring sys‐tem will automatically updatethe newreferencevalues afteryou havechangedthe tire pressure.You can, however,also updatethereferenceval‐uesbyrestartingthe tire pressure monitoringsystem manually (page 397).
System limitations
The system may be impaired or may not functioninthefollowing situations:
RIfthe tire pressure is set incorrectly
RIfthere is a sudden pressure loss caused,forexample,byaforeign object penetratingthetire
RIfthere is a malfunction causedbyanotherradio signal source
Make suretoobservethefollowing furtherrela‐ted subject:
RNotes on tire pressure (page 392)
Checkingthe tire pressure withthe tire pres‐sure monitoring system
Requirements:RThe ignition is switched on.
On-board computer:
ServiceTires
One ofthefollowing displaysappears:
RCurrent tire pressure and tiretemperature ofthe individual wheels:
RTire pressure will be displayed after driving afew minutes
396Wheels and tires