engine MERCEDES-BENZ C CLASS 2019 User Guide

Seats
Adjusting the front seat mechanically andelectrically (without Seat ComfortPackage)
\nWARNINGRisk of becoming trapped ifthe seats are adjustedbychildren
Children could become trapped iftheyadjustthe seats, particularly when unattended.
When leavingthevehicle, alwaystakethe SmartKeywithyou and lockthevehicle.
Never leavechildren unattended inthevehicle.
The seats can be adjusted whenthe ignition isswitched off.
\nWARNINGRisk of becoming trappedwhen adjustingthe seats
Whenyou adjust a seat,you orothervehicleoccupants could become trapped, e.g. ontheseat guiderail.
When adjusting a seat, make surethatno one has any body parts inthe sweepofthe seat.
Observethe safety notes on "Airbags" and "Chil‐dren inthevehicle".
\nWARNINGRisk of accident duetothedriver's seat not being engaged
Ifthe driver's seat is not engaged, it couldmoveunexpectedly whilethevehicle is inmotion.
This could causeyoutolose control ofthevehicle.
Always make surethatthe driver's seatis engaged beforestartingthevehicle.
\nWARNINGRisk of injuryfrom adjustingthevehicle settings whilethevehicle is inmotion
You could lose control ofthevehicle inthefollowing situations:
Rifyou adjustthe driver's seat,the headrestraint,thesteering wheel orthe mirrorwhilethevehicle is in motion
Rifyoufastenyour seat belt whilethevehi‐cle is in motion
Beforestartingthe engine: adjustthedriver's seat,the headrestraint,thesteering wheel orthe mirror andfastenyour seat belt.
\nWARNINGRisk of becoming trapped ifthe seat height is adjusted carelessly
Ifyou adjustthe seat height carelessly,youorothervehicle occupants could be trappedandthereby injured.
Seats andstowing91

Using buttons1to4, adjustthe contourofthe backrest individuallytosuityour back.
Headrestraints
Adjusting the front seat headrestraintsmechanically
\nWARNINGRisk of injuryfrom adjustingthevehicle settings whilethevehicle is inmotion
You could lose control ofthevehicle inthefollowing situations:
Rifyou adjustthe driver's seat,the headrestraint,thesteering wheel orthe mirrorwhilethevehicle is in motion
Rifyoufastenyour seat belt whilethevehi‐cle is in motion
Beforestartingthe engine: adjustthedriver's seat,the headrestraint,thesteering wheel orthe mirror andfastenyour seat belt.
\nWARNINGRisk of injuryduetoheadrestraints which are not installed or areadjusted incorrectly
If headrestraints are not installed or areadjusted incorrectly,the headrestraints can‐not provide protection as intended.
There is an increasedrisk of injury inthehead and neck area, e.g. intheevent of anaccident or when braking.
Always drive withthe headrestraintsinstalled.
Before driving off, make sureforeveryvehicle occupantthatthe center oftheheadrestraint supportsthe back ofthehead at abouteye level.
Do not interchangethe headrestraints ofthefront andrear seats. Otherwise,you will not beabletoadjustthe height and angle ofthe headrestraints correctly.
Adjustthe headrestraintfore-and-aft position sothat it is as close as possibletothe back ofyourhead.
Toraise:pullthe headrestraint up.
Tolower:pressrelease knob1inthe direc‐tion ofthe arrowand pushthe headrestraintdown.Tomoveforwards:pullthe headrestraintforwards.
Tomovebackwards:press and holdreleaseknob2.
96Seats andstowing

Toswitch off/reducethe level:press but‐ton1repeatedly untilthe desiredventila‐tion level is set.If all indicator lamps are off,the seatventila‐tion is switched off.
Steering wheel
Adjusting thesteering wheel manually
\nWARNINGRisk of injuryfrom adjustingthevehicle settings whilethevehicle is inmotion
You could lose control ofthevehicle inthefollowing situations:
Rifyou adjustthe driver's seat,the headrestraint,thesteering wheel orthe mirrorwhilethevehicle is in motion
Rifyoufastenyour seat belt whilethevehi‐cle is in motion
Beforestartingthe engine: adjustthedriver's seat,the headrestraint,the
steering wheel orthe mirror andfastenyour seat belt.
\nWARNINGRisk of entrapmentforchil‐dren when adjustingthesteering wheel
Children could injurethemselves iftheyadjustthesteering wheel.
Never leavechildren unattended inthevehicle.
When leavingthevehicle, alwaystakethe SmartKeywithyou and lockthevehicle.
Pushrelease lever1down asfar as it willgo.Thesteering column is unlocked.
Adjust height2and distance3tothesteering wheel.Pushrelease lever1up asfar as it will go.Thesteering column is locked.
Check and make surethatthesteering col‐umn is lockedbymovingthesteering wheel.
100Seats andstowing

Tocall up:press and holdtherelevant pre‐set position button1,2 or 3 untilthe frontseat,thesteering wheel, Head-up Displayand outside mirror are inthestored position.
Whenyoureleasethe preset position button,steering wheel,the seat and mirror settingfunctionsstop immediately.The Head-upDisplay continuestobe adjusted.
Stowage areas
Notes on loadingthevehicle
\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.
\nWARNINGRisk of injuryfrom unsecureditems inthevehicle
If objects, luggage or loads are not securedor not secured sufficiently,theycould slip,tipover or bethrown around andthereby hitvehicle occupants.
There is arisk of injury,particularly intheevent of sudden braking or a suddenchangein direction.
Alwaysstowobjects in such awaythattheycannot bethrown around.
Beforethe journey,secure objects, lug‐gageor loads against slipping or tippingover.
\nWARNINGRisk of injuryduetoobjectsbeingstowed incorrectly
Ifyou do not adequatelystowobjects inthevehicle interior,theycould slip or betossedaround andtherebystrikevehicle occupants.In addition, cup holders, openstowagespaces and mobile phone brackets cannot
alwaysrestrainthe objectstheycontain intheevent of an accident.
There is arisk of injury,particularly intheevent of sudden braking or a suddenchangein direction.
Alwaysstowobjects in such awaythattheycannot betossed about inthese orsimilar situations.
Always make surethat objects do notproject fromstowage spaces, parcelnets orstowage nets.
Closethe lockablestowage spacesbeforestarting a journey.
Alwaysstowand secure objectsthatare heavy, hard, pointed, sharp-edged,fragile ortoo large inthe trunk.
\nWARNINGRisk of burning fromthetail‐pipe ortailpipe trim
Thetailpipe andtailpipe trim can becomeveryhot. Ifyou come into contact withthesecar parts,you could burnyourself.
104Seats andstowing

Exterior lighting
Information about lighting systems andyourresponsibility
Thevarious lighting systems ofthevehicle areonly aids. The driver ofthevehicle isresponsiblefor correctvehicle illumination in accordancewiththe prevailing light and visibility conditions,legalrequirements and traffic situation.
Light switch
Operating the light switch
GcLeftstanding light
HdRightstanding light
I`Parking lights and license plate lamp
JXAutomatic driving lights (preferred lightswitch position)
KXLow beam/high beam
6^Switchestherearfog lights on or off
When low beam is activated,the`indicatorlampforthe parking lights is deactivated andreplacedbytheXlow beam indicator lamp.
Always parkyourvehicle safely and in awell-lit area, in accordance withtherelevant legalstipulations.
NOTEBattery dischargingbyoperatingthestanding lights
Operatingthestanding lightsover a period ofhours puts astrain onthe battery.
Where possible, switch ontherightdor leftcparking light.
Inthe case of severebattery discharging,thestanding lights or parking lights are automati‐cally switched offtofacilitatethe next enginestart.
Theexterior lighting (exceptstanding and park‐ing lights) switches off automatically whenthedriver's door is opened.
12 2Light and visibility

Removeprotectivefilm1fromthe mainte‐nance display onthe tip ofthe newly instal‐led wiper blades.
Ifthe color ofthe maintenance displaychangesfrom blackto yellow,the wiper blades should bereplaced.
The duration untilthe colorchangesvariesdepending onthe usage conditions.
Mirrors
Operatingthe outside mirrors
\nWARNINGRisk of injuryfrom adjustingthevehicle settings whilethevehicle is inmotion
You could lose control ofthevehicle inthefollowing situations:
Rifyou adjustthe driver's seat,the headrestraint,thesteering wheel orthe mirrorwhilethevehicle is in motion
Rifyoufastenyour seat belt whilethevehi‐cle is in motion
Beforestartingthe engine: adjustthedriver's seat,the headrestraint,thesteering wheel orthe mirror andfastenyour seat belt.
\nWARNINGRisk of accident duetomis‐judgment of distances when usingthepassenger mirror
The outside mirror onthe front-passengersidereflects objects on a smaller scale. Theobjects in view are infact closerthantheyappear.
As aresult,you may misjudgethe distancebetweenyou andtheroad user drivingbehindyou,forexample, whenchanginglanes.
Therefore, always lookoveryour shoul‐der in ordertoensurethatyou areaware ofthe actual distance betweenyou andtheroad users driving behindyou.
Foldingthe outside mirrorsin/out
Brieflypress switch1.
Resettingthe outside mirrors
Ifthe battery has been disconnected or com‐pletely discharged,the outside mirrorsmustbereset. Onlythen willthe automatic mirrorfolding functionworkproperly.
Brieflypress switch1.
134Light and visibility

Adjusting the outside mirrors
Press button3or4toselectthe outsidemirrortobe adjusted.
Press button2toadjustthe position ofthemirrorglass.
Engagingthe outside mirrors
Vehicles without electricallyfolding out‐side mirrors:manually movethe outsidemirror intothe correct position.
Vehicles with electricallyfolding outsidemirrors:press and hold button1.You will hear a click andthe mirror will audi‐bly engage in position. The outside mirror issettothe correct position.
Automatic anti-glare mirrorsfunction
\nWARNINGRisk of burns and poisoningduetothe anti-glare mirror electrolyte
Electrolyte may escape iftheglass in anautomatic anti-glare mirror breaks.
The electrolyte is harmful and causes irrita‐tion. It mustnot come into contact withyourskin,eyes,respiratory organs or clothing orbe swallowed.
Ifyou come into contact with electro‐lyte, observethefollowing:RRinsethe electrolyte fromyour skinand seek medical attention immedi‐ately.
RIf electrolyte comes into contactwithyoureyes,rinsethemthor‐oughly with cleanwater and seekmedical attention immediately.
RIfthe electrolyte is swallowed,immediatelyrinseyour mouth outthoroughly. Do not inducevomiting.Seek medical attention immediately.
RImmediatelychange out of clothingwhich has come into contact withelectrolyte.
RIf an allergicreaction occurs, seekmedical attention immediately.
The insiderearview mirror andthe outside mir‐ror onthe driver's side automatically go intoanti-glare mode if light from a headlamp hitsthesensor onthe insiderearview mirror.
System limitations
The system does not go into anti-glare mode inthefollowing situations:
Rthe engine is switched off
Rreversegear is engaged
Rthe interior lighting is switched on
Function ofthe front-passenger outside mir‐ror parking position
The parking position makes parking easier.
The front-passenger outside mirror tilts down‐wards and shows therear wheel onthe front-passenger side inthefollowing situations:
Rthe parking position isstored(page136)
Rthe passenger mirror is selected
Rreversegear is engaged
Light and visibility13 5

Overview of climate control systems
Notes on climate control
An interior airfilter must always be used sothatthe air conditioning system, pollution level moni‐toring andthe airfiltering functionworkcor‐rectly. Makesurethatthefilter is installed cor‐rectly andthefilter housing inthe engine com‐partment is closed correctly usingthe cap andalways tightly sealed when in operation. Usefil‐tersrecommended and approvedbyMercedes-Benz. Always haveserviceworkcarried out at aqualified specialistworkshop.
Overview ofthe control panelfor dual-zoneautomatic climate control
The indicator lamps onthe buttons indicatethatthe corresponding function is activated.
1

The synchronization function is deactivated ifthesettingsfor one oftheother climate zones arechanged.
Activating or deactivating the climate con‐trol synchronization function usingthe multi‐media system
Multimedia system:
VehiclebClimate ControlSYNC
The climate control can be controlled centrallyusingthe synchronization function. Thetempera‐ture setting is automatically adoptedfor all cli‐mate zones.
Activatesor deactivateSthe function.
Removing condensation from the windows
Windows fogged up onthe inside
PresstheXbutton.
Ifthe windowscontinuetofog up: pressthedbutton.
Windows fogged up onthe outside
Switchonthe windshield wipers.
PresstheXbutton.
Switching air-recirculation mode on/off
Presstherbutton.The interior air will berecirculated.
Air-recirculation mode automatically switchestofresh air mode after some time.
If air-recirculation mode is switched on,thewindowsmayfog up morequickly.Switch onair-recirculation mode only briefly.
Switchingtheresidual heat on or off
Requirements:RThevehicle is parked.
It is possibletomake use oftheresidual heatfromthe enginetocontinue heating orventilat‐ingthe front compartment ofthevehicleforapproximately 30 minutes.
Toswitch on:pressthebutton.
Residual heat is switched off automatically.
Activating/deactivating ionization
Multimedia system:
VehiclebClimate ControlIonization
Ionization cleans andrefreshesthe interior air ofthevehicle. The ionization ofthe interior air isodorless.
Activatesor deactivateSthe function.
Fragrance system
Settingthe fragrance system
Requirements:RAutomatic climatecontrol is activated.
RTheglovebox is closed.
Climate control141

Driving
Notes on Mercedes-AMGvehicles
Observethe notes onthefollowingtopics intheSupplement, asyou mayotherwisefailtorecog‐nize dangers:
RRear axle locking differential
RAMGPerformanceexhaust system
RAMG ceramic high-performance compositebrake system
RRACESTART
RAMG adaptive sportsuspension system
Switchingthe power supplyor ignition onwithoutstartingthe engine
\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 out ofpark position].
Rstartingthe engine
Never leavechildren and animals unat‐tended inthevehicle.
When leavingthevehicle, alwaystakethe SmartKeywithyou and lockthevehicle.
Keepthe SmartKeyout ofthereach ofchildren.
Requirements:RThe SmartKeyis inthevehicle and isrecog‐nized.
RThe brake pedal is not depressed.
14 4Driving and parking