towing MERCEDES-BENZ C CLASS 2019 Owner's Guide

Sockets
Using the12V socketinthe front centerconsole
Requirements:ROnly devices uptoa maximum of180 W(15 A) are permissible.
Lift up socket cap1.
Insertthe plug ofthe device.
Ifyou haveconnected a devicetothe12 Vsocket, leavethe cover ofthestowage compart‐ment open.
Usingthe12V socketintherear passengercompartment
Requirements:ROnly connect devices uptoa maximum of180 W (15 A).
Pull cover2outbyitstop handle edge.
Lift upthe cap on socket1.
Using the12V socketinthe front passengerfootwell
Requirements:ROnly connect devices uptoa maximum of180 W (15 A).
Lift up socket cap1.
Makesurethat no cables arerunningthrough or secured inthe airbag deployment
11 8Seats andstowing

area when usingthe socket. Observethenotes on airbag protection when doingthis(page41).
Wirelesscharging ofthe mobile phone andconnection withtheexterior antenna
Notes on wirelesslychargingthe mobilephone
\nWARNINGRisk of injuryduetoobjectsbeingstowed incorrectly
If objects inthevehicle interior arestowedincorrectly,theycan slide or bethrownaround and hitvehicle occupants. In addi‐tion, cup holders, openstowage spaces andmobile phonereceptacles cannot alwaysretain all objectstheycontain.
Thereis arisk of injury,particularly intheevent of sudden braking or a suddenchangein direction.
Alwaysstowobjects sothattheycan‐not bethrown around in suchsitua‐tions.
Always make surethat objects do notprotrude fromstowage spaces, luggagenets orstowage nets.
Closethe lockablestowage spacesbeforestarting a journey.
Alwaysstowand secure heavy, hard,pointed, sharp-edged, fragile or bulkyobjects inthe trunk/load compartment.
Observethe notes on loadingthevehicle.
\nWARNINGRisk offirefrom placingobjects inthe mobile phonestowagecompartment
Ifyou place objects inthe mobile phonestowage compartment,theymay heat upexcessively andeven catchfire.
Do not place additional objects, espe‐ciallythose mode of metal, inthemobile phonestowage compartment.
NOTEDamagetoobjects causedbyplacingthem inthe mobile phonestow‐age compartment
If objects are placed inthe mobile phonestowage compartment,theymay be dam‐agedbyelectromagneticfields.
Do not place credit cards,storagemedia orother objects sensitivetoelectromagneticfields inthe mobilephonestowage compartment.
NOTEDamagetothe mobile phonestowage compartment causedbyliquids
If liquids enterthe mobile phonestowagecompartment,the compartment may bedamaged.
Ensurethat no liquids enterthe mobilephonestowage compartment.
RDepending onthevehicle equipment,themobile phone is connectedtothevehicle'sexterior antenna viathecharging module.
Seats andstowing11 9

RThecharging function and wireless connec‐tion ofthe mobile phonetothevehicle'sexterior antenna are onlyavailable ifthe igni‐tion is switched on.
RSmall mobile phones may not be abletobecharged inevery position ofthe mobilephonestowage compartment.
RLargemobile phones which do notrestflat inthe mobile phonestowage compartment maynot be abletobecharged or connected withthevehicle'sexterior antenna.
RThe mobile phone may heat up duringthecharging process. This may also depend onthe applications (apps) currently open.
RToensure more efficientcharging and con‐nection withthevehicle'sexterior antenna,removethe protective cover fromthe mobilephone. Protective coverswhich are neces‐saryfor wirelesscharging areexcluded.
Wirelesscharging ofthe mobile phone
Requirements:RThe mobile phone is suitablefor wirelesscharging.You canfind a listof compatiblemobile phones at:
http://www.mercedes-benz.com/connect
Placethe mobile phone as closetothe cen‐ter of mat1as possible withthe displayfacing upwards.Whenthecharging symbol is shown inthemultimedia system,the mobile phone isbeingcharged.
Malfunctions duringthecharging process areshown inthe multimedia system display.
The mat can beremovedbythetabforcleaning, e.g. using clean, lukewarmwater.
Installing/removingthefloor mats
\nWARNINGRisk of accident duetoobjects inthe driver'sfootwell
Objects inthe driver'sfootwell may impedepedal travel or block a depressed pedal.
This jeopardizesthe operating androadsafety ofthevehicle.
Stowall objects inthevehicle securelysothattheycannotgetintothe driver'sfootwell.
Always installthefloor mats securelyand as prescribed in ordertoensurethatthere is always sufficientroomforthe pedals.
Do not use loosefloor mats and do notplacefloor mats ontop of one another.
12 0Seats andstowing

Toinstall:slidethe seat backwards and laythefloor mat inthefootwell.
Pressstuds1ontoholders2.
Adjustthe corresponding seat.
Toremove:pullthefloor mat off holders2.
Removethefloor mat.
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properlydetectedbythe system. The maximumpermissible speed applyingfor avehicle with atrailer is not detectedbythe system. Inthese sit‐uationsyou must adjustyour speedyourself.
\nWARNINGRisk of accident duetoActiveSpeed Limit Assistadaptingthevehicle'sspeed
The speed adoptedbyActive Speed LimitAssistmay betoo high or incorrect in someindividual cases, suchas:
RInthewet or infog
RWhentowing a trailer
Ensurethatthe driven speed complieswith trafficregulations.
Adjustthe driving speedtosuit currenttraffic andweather conditions.
Function ofroute-based speed adaptation
Thefollowing function is country-dependentand onlyavailable in conjunction withtheDriving AssistancePackage.
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(page189).
Routeevents ahead are:
RBends
RT-intersections, traffic circles andtollsta‐tions
RTurns andexits
RTraffic jams ahead (only withLiveTraffic(page 293))
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.
18 8Driving and parking

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
RIfthe setroute isre-planned
RInroad construction areas
RWhentowing a trailer
RIn badweather orroad conditions
RIfthe accelerator pedal is depressed
Adjustthe speedtothe traffic situation.
Settingroute-based speed adjustment
Requirements:RActive Distance AssistDISTRONIC is activa‐ted.
Multimedia system:
VehiclekAssistanceSpeed Adjustment
Activatesor deactivateSthe function.
ActiveSteering Assist
Function ofActiveSteering Assist
ActiveSteering Assist is country-dependentand onlyavailableforvehicles withthe Driv‐ing AssistancePackage.
ActiveSteering Assist is operational at speedsupto130mph (210km/h) and helpsyoutostayinthe center ofthe lanebymeans of moderatesteering interventions. It usesthevehicle in frontandthe lane markings as areference dependingonthe driven speed.
Whenthe system is activelysteering,theèsymbol is shown in green inthe multifunctiondisplay.
Ifthe detection of lane markings andvehiclesahead is impaired,ActiveSteering Assistswitchestopassive mode. The system providesno support inthis case. Duringthe transitionfrom activetopassivestatus,theèsymbol isshown as enlarged andflashesyellow.Oncethesystem is passive,theèsymbol is shown asgrayinthe multifunction display.
Driving and parking18 9

NOTEDamagefrom automatic braking
If one ofthefollowing functions is switchedon,thevehicle brakes automatically in cer‐tain situations:
RActive Brake Assist
RActive Distance AssistDISTRONIC
RHOLD function
RActiveParking Assist
Toavoid damagetothevehicle, deactivatethese systems inthefollowing or similar sit‐uations:
Duringtowing
In a carwash
Requirements:RThevehicle isstationary.
RThe driver's door is closed orthe seat belt onthe driver's side isfastened.
RThe engine isrunning or has been automati‐cally switched offbythe ECOstart/stopfunction.
RThe electric parking brake isreleased.
RActive Distance AssistDISTRONIC is deacti‐vated.
RThe transmission is in position[,^or\\.
Activating the HOLD function
Depressthe brake pedal and after a shorttimequickly depress further untilthe

Settingthe sensitivity ofActive LaneKeep‐ing AssistMultimedia system:
VehiclekAssistanceAct. Lane Keep. Assist
Select a setting.
Activating/deactivating thewarning
SwitchLane Depart. Warningonsor offS.You do notreceiveanywarning when leavinga lane ifthe lanekeepingwarning system isdeactivated.
Vehicletowing instructions
Thevehicle is not suitableforthe use oftow barsystemsthat are usedforflattowing or dinghytowing,forexample.Attaching and usingtow barsystems can leadtodamage onthevehicle.Whenyou aretowing avehicle withtow bar sys‐tems, safe drivingcharacteristics cannot beguaranteedforthetowingvehicle orthetowedvehicle. Thevehicle-trailer combination mayswervefrom sidetoside. Comply withthe per‐
mittedtowing methods (page 381) andthe instructionsfortowing with bothaxles ontheground (page 382).
Driving and parking225

tery. Begin eachtime with the contacts onyourownvehiclefirst.
Afterremovingthe jumper cable/chargingcable, close cover2of positive clamp3.
Close cover1.
Further information can be obtained at aquali‐fied specialistworkshop.
Replacing the12V battery
Observethe notes onthe12V battery(page376).
Mercedes-Benzrecommendsthatyou havethe12V batteryreplaced at aqualified specialistworkshop, e.g. at an authorized Mercedes-BenzCenter.
Observethefollowing notes ifyouwanttoreplacethe batteryyourself:
RAlwaysreplace afaulty batterywith a batterywhich meetsthe specificvehiclerequire‐ments.
Thevehicle is equipped with anAGMtechnol‐ogy battery (Absorbent Glass Mat) or a lith‐ium-ion battery.Fullvehicle functionality isonly guaranteed with anAGM battery or lith‐ium-ion battery.For safetyreasons,Mercedes-Benzrecommendsthatyou onlyuse batteries which havebeentested andapprovedforyourvehiclebyMercedes-Benz.
RCarryover detachable parts, such asventhoses, elbowfitting orterminal coversfromthe battery beingreplaced.
RMake surethatthevent hose is alwayscon‐nectedtothe original opening onthe side ofthe battery.
Install anyexisting or supplied cell caps.
Otherwise,gases or battery acid couldescape.
RMake surethat detachable parts arerecon‐nected inthe sameway.
Towstarting ortowingaway
Permittedtowing methods
Mercedes-Benzrecommends transportingyourvehicle inthe case of a breakdown,ratherthantowing itaway.
Fortowing, use atowrope ortow bar with bothaxles onthe ground. Do not usetow bar sys‐tems.
NOTEDamagetothevehicle dueto tow‐ingawayincorrectly
Observethe instructions and notes ontowingaway.
Breakdown assistance381

Permittedtowing methods
Vehicle equipment/towingmethod
Bothaxles onthegroundFront axleraisedRear axleraised
Vehicles with automatic transmis‐sionYes, maximum31miles (50 km) at31mph (50 km/h)NoYes, ifthesteering wheel isfixed inthe center position with asteeringwheel lock.
4MATICvehiclesYes, maximum31miles (50 km) at31mph (50 km/h)NoNo
Towing with araised axle:towing should beperformedbyatowing company.
Towingthevehicle with bothaxles ontheground
Observethe notes onthe permittedtowingmethods (page 381).
Make surethatthe battery is connected andcharged.
Observethefollowing points whenthe battery isdischarged:
RThe engine cannotbestarted
RThe electric parking brake cannotbereleased or applied
RVehicles with automatic transmission:The automatic transmission cannot be shif‐tedtoposition\\or].
Vehicles with automatic transmission:Ifthe automatic transmission cannotbe shif‐tedtoposition\\, orthe multifunction dis‐play inthe instrument cluster does not showanything, havethevehicle transportedaway(page 384). Atowingvehicle with lift‐ing equipment isrequiredforvehicle trans‐portation.
382Breakdown assistance