2019 MERCEDES-BENZ C CLASS engine

Climate control........................................13 8Overview of climate control systems ..........138Operatingthe climate control system .........13 9
Driving and parking.................................14 4Driving ........................................................14 4DYNAMIC SELECT switch ...........................15 3Automatic transmission ..............................154Function ofthe 4MATIC ..............................15 9Refueling ....................................................15 9Parking ........................................................161Driving and driving safety systems .............170Vehicletowing instructions .........................225
Instrument Display and on-boardcomputer..................................................226Instrument Displayoverview ...................... 226Overview ofthe buttons onthesteeringwheel ..........................................................227Operatingthe on-board computer .............. 228Settingthe design ...................................... 229Settingthe additionalvaluerange .............. 229Overview of displays onthe multifunc‐tion display .................................................230
Adjustingthe instrument lighting ................231Menus and submenus ................................. 231Head-up Display ......................................... 237
Voice Control System..............................239Notes on operating safety .......................... 239Operation ................................................... 239UsingtheVoice Control System effec‐tively ...........................................................241Essentialvoice commands ..........................241
Multimedia system..................................254Overview and operation .............................. 254System settings .......................................... 263Fit & Healthy...............................................274Navigation ...................................................276Telephone ...................................................302Online and Internet functions ..................... 324Media .........................................................329Radio .......................................................... 342Sound .........................................................349
Maintenance and care.............................351ASSYST PLUS service interval display .........351Engine compartment .................................. 352Cleaning and care ....................................... 359
Breakdown assistance............................368Emergency ..................................................368Flat tire .......................................................370Battery (vehicle) ..........................................376Towstarting ortowingaway....................... 381Electrical fuses ........................................... 386
Wheels and tires......................................390Notes on noise or unusual handlingchar‐acteristics ...................................................390Notes onregularlyinspecting wheels andtires ............................................................ 390Notes on snowchains .................................391Tirepressure .............................................. 392Loadingthevehicle .................................... 399Tirelabeling ................................................ 403Definition oftermsfor tires and loading ..... 409Changing a wheel ........................................411
Contents3

Technical data..........................................421Notes ontechnical data.............................. 421Vehicle electronics ...................................... 421Vehicle identification plate, VIN andengine numberoverview ............................ 423Operatingfluids .......................................... 425Vehicle data ................................................ 431
Display messages andwarning/indi‐cator lamps..............................................433Display messages .......................................433Warning and indicator lamps ......................479
Index.........................................................493
4Contents

Protectingthe environment
ENVIRONMENTALNOTEEnvironmentaldamageduetooperating conditions andpersonal drivingstyle
The pollutant emission ofyourvehicle isdirectlyrelatedtothewayyou operateyourvehicle.
Helptoprotectthe environmentbyoperatingyourvehicle in an environmentallyresponsi‐ble manner. Please observethefollowingrec‐ommendations on operating conditions andpersonal drivingstyle.
Operating conditions:
Make surethatthe tire pressure is cor‐rect.
Do not carryany unnecessaryweight(e.g.roof luggageracks onceyou nolonger needthem).
Adheretothe service intervals.Aregularly servicedvehicle will contrib‐utetoenvironmental protection.
Always havemaintenanceworkcarriedout at aqualified specialistworkshop.
Personal drivingstyle:
Do not depressthe accelerator pedalwhenstartingthe engine.
Do notwarmupthe engine whilethevehicle isstationary.
Drive carefully and maintain a suitabledistance fromthevehicle in front.
Avoid frequent, sudden accelerationand braking.
Changegear in good time and use eachgear onlyupto

The Operator's Manual and Maintenance Bookletare important documents and should bekeptinthevehicle.
Service andvehicle operation
Vehicle operation outsidethe USA or Canada
Whenyou are abroad withyourvehicle, observethefollowing points:
Rservice points orreplacement parts may notbeavailable immediately.
Runleaded fuel may not beavailableforvehi‐cles with a catalytic converter. Leaded fuelmay cause damagetothe catalytic converter.
Rthe fuel may haveanextremely low octanenumber.Unsuitable fuel can cause enginedamage.
Some Mercedes-Benz models areavailable inEuropethrough our European Delivery Program.For more information, please consult an author‐ized Mercedes‑Benz service center, or writetoone ofthefollowing address:
inthe USA:
Mercedes-Benz USA,LLC
European Delivery Department
One Mercedes-Benz Drive
Sandy Springs, GA 30328
in Canada:
Mercedes-Benz Canada, Inc.
European Delivery Department
98VanderhoofAvenue
Toronto, Ontario M4G 4C9
Maintenance
Your customer advisor confirmsthe service inthe servicereport.
Roadside Assistance
The Mercedes-BenzRoadside Assistance Pro‐gram offerstechnical help inthe case of abreakdown.Your callstothetoll-freeRoadsideAssistance Hotline are answeredbyour agents24hours a day,365 daysayear.
1-800-FOR-MERCedes (1-800-367-6372)(USA)
1-800-387-0100(Canada)
You canfind further information intheMercedes-BenzRoadside Assistance Programbrochure(USA) orthe "Roadside Assistance"section inthe maintenance andwarranty infor‐mation booklet (Canada).You willfind bothinthevehicle documentwallet.
Change of address orchange ofownership
Intheevent of achange of address, please sendusthe "Notification of addresschange" intheService and Guarantee booklet or simply calltheMercedes-Benz Customer Assistance Center(USA) onthe hotline number1-800-FOR-MERCedes (1-800-367-6372)or Cus‐tomer Service (Canada) on 1-800-387-0100.Wecanthenreachyou in a timelyfashion, if neces‐sary.
Ifyou sellyour Mercedes, please leaveall litera‐ture inthevehicle sothat it isavailabletothenextowner. Ifyou havepurchased a usedvehi‐cle, please send usthe "Notice of Purchase ofUsed Car" inthe Service and Guarantee bookletor simply callthe Mercedes-Benz Customer
General notes23

Observewhenstopping or parking
\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.
\nWARNINGRisk offatal injury duetoexposuretoextreme heat or cold inthevehicle
If people – particularlychildren – areexposedtoextremetemperaturesover an
extended period of time,there is arisk ofserious orevenfatal injury.
Never leaveanyone – particularlychil‐dren – unattended inthevehicle.
Never leaveanimals inthevehicle unat‐tended.
52Occupant safety

Child safety locks
Activating/deactivating thechild safety lockfor therear doors
\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.
\nWARNINGRisk offatal injury duetoexposuretoextreme heat or cold inthevehicle
If people – particularlychildren – areexposedtoextremetemperaturesover anextended period of time,there is arisk ofserious orevenfatal injury.
Never leaveanyone – particularlychil‐dren – unattended inthevehicle.
Never leaveanimals inthevehicle unat‐tended.
\nWARNINGRisk of accident and injuryduetochildren left unattended inthevehicle
Whenchildren are traveling inthevehicle,theycould:
Ropen doors,thereby endangeringotherpeople orroad users
Rgetout ofthevehicle and be hitbytraffic
Roperatevehicle equipment and becometrapped,forexample
Whenchildren are traveling inthevehi‐cle, always activatetheavailablechildsafety locks.
Never leavechildren unattended inthevehicle.
When leavingthevehicle, alwaystakethekey withyou and lockthevehicle.
Child safety locksfortherear doors andtherearside windowsareavailable.Thechild safety lock ontherear doors secureseach door separately.The doors can no longerbe opened fromthe inside.
Occupant safety61

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

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