2019 MERCEDES-BENZ S CLASS towing

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.
&WARNINGRisk 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:
,Vehicle.kAssistance.Speed
Adjustment
#Activatesor deactivateSthe function.
ActiveSteering Assist
Function ofActiveSteering AssistActiveSteering Assist is country-dependent andonlyavailableforvehicles withthe Driving Assis‐tancePackage.
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.
Steering andtouch detectionThe driver isrequiredtokeeptheir hands onthesteering wheel at all times andtobe abletointervene at any time. The driver mustexpect achange from activetopassive mode or viceversa at any time.
208Driving and parking

Information on HillStart Assist
HillStart Assist holdsthevehiclefor a shorttime when pullingawayon a hill underthefol‐lowing conditions:
RThe transmission is in position[or^.
RThe electric parking brake isreleased.
This givesyou enough timetomoveyourfootfromthe brake pedaltothe accelerator pedaland depress it beforethevehicle beginstoroll.
&WARNINGRisk 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.
HOLD function
HOLD functionThe HOLD function holdsthevehicle at astand‐still withoutrequiringyoutodepressthe brakepedal, e.g. whilewaiting in traffic.
System limitationsThe HOLD function is only intendedtoprovideassistance when driving and is not a sufficientmeans of safeguardingthevehicle againstrollingawaywhenstationary.
RThe incline must not be greaterthan 30%.
Activating/deactivating the HOLD function
&WARNINGRisk of an accident duetotheHOLD function being activated whenyouleavethevehicle
Ifyou leavethevehicle while onlythe HOLDfunction is brakingthevehicle,thevehiclecanrollawayinthefollowing situations:
RIfthere is a malfunction inthe system orinthe power supply.
RIfthe HOLD function is deactivatedbydepressingthe accelerator pedal or brakepedal, e.g.byavehicle occupant.
#Always deactivatethe HOLD functionand securethevehicle againstrollingawaybefore leavingthevehicle.
*NOTEDamagefrom automatic braking
WhenActive Brake Assist,Active DistanceAssistDISTRONIC orthe HOLD function areactivated,thevehicle brakes autonomouslyin certain situations.
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.
214Driving and parking

#Always make surethatthere is suffi‐cient distancetothe sideforother traf‐fic or obstacles.
&WARNINGRisk of accident despiteLaneKeeping Assist
LaneKeeping Assist cannotalways clearlydetect lane markings.
In suchcases, LaneKeeping Assist can:
Rgive an unnecessarywarning
Rnot give awarning
#Always pay particular attentiontothetraffic situation andkeep withinthelane, especially ifActive LaneKeepingAssist alertsyou.
Be suretoobservethe system limitations ofActive LaneKeeping Assist.
#Press button2.If indicator lamp1lights up,Active LaneKeeping Assist is activated,the lane mark‐ings are shown as light inthe assistancegraphic. WhenActive LaneKeeping Assist isactive,the lane markings are shown in greeninthe assistance graphic.
%Depending onthe country,you may havetopress and holdthe buttontodeactivate.
Settingthe sensitivity ofActive LaneKeep‐ing AssistMultimedia system:
,Vehicle.kAssistance.Act.
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‐
Driving and parking249

mittedtowing methods (→page 424) andtheinstructionsfortowing with bothaxles ontheground (→page 426).
250Driving and parking

#Duringstarting assistance:starttheengine ofthe donorvehicle andrun at idlespeed.
#Connectthe negative pole ofthe donor bat‐teryandground point5ofyourownvehiclebyusingthe jumper cable/charging cable.Begin withthe donor batteryfirst.
#Duringstarting assistance:starttheengine ofyourownvehicle.
#Duringthecharging process:startthecharging process.
#Duringstarting assistance:letthe enginesrunfor several minutes.
#Duringstarting assistance:before discon‐nectingthe jumper cable, switch on an elec‐trical consumer inyourownvehicle, e.g.therear windowdefroster or lighting.
Whenthestarting assistance/charging processis complete:
#First,removethe jumper cable/chargingcable from ground point5and negativepole ofthe donor battery,then from positiveclamp4and positive pole ofthe donor bat‐
tery. Begin eachtime with the contacts onyourownvehiclefirst.
#Afterremovingthe jumper cable/chargingcable, close cover3of positive clamp4.
Further information can be obtained at aquali‐fied specialistworkshop.
Replacing the12V battery
#Observethe notes onthe12V battery(→page419).
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 is
only 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
Plug-inhybrid:observethe notes inthe Supple‐ment. Otherwise,you may notrecognize dan‐gers.
424Breakdown assistance

Mercedes-Benzrecommends transportingyourvehicle inthe case of a breakdown,ratherthantowing itaway.
Fortowing, use atowrope ortow bar with bothaxles onthe ground. Do not usetow bar systems(→page249).
*NOTEDamagetothevehicle dueto tow‐ingawayincorrectly
#Observethe instructions and notes ontowingaway.
Towing with araised axle:towing should beperformedbyatowing company.
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
Breakdown assistance425

Towingthevehicle with bothaxles ontheground
#Observethe notes onthe permittedtowingmethods (→page 424).
#Make surethatthe battery is connected andcharged.
Whenthe battery is discharged,thefollowingactions cannot be performed:
Rthe engine cannotbestarted
Rthe electric parking brake cannotbereleasedor applied
Rthe automatic transmission cannotbe shiftedtoposition\\or]
%Ifthe automatic transmission cannotbe shif‐tedtoposition\\, orthe multifunction dis‐play inthe instrument cluster does not showanything, havethevehicle transportedaway(→page 427). Atowingvehicle with liftingequipment isrequiredforvehicle transporta‐tion.
*NOTEDamagedueto towingawayatexcessively high speeds orover long dis‐tances
The drivetrain could be damaged whentow‐ing atexcessively high speeds orover longdistances.
#Atowing speed of 30mph (50 km/h)must not beexceeded.
#Atowing distance of 30 miles (50 km)mustnot beexceeded.
&WARNINGRisk of accident whentowingavehicle which istoo heavy
Ifthevehicle beingtow-started ortowedawayis heavierthanthe permissible grossmass ofyourvehicle,thefollowing situationscan occur:
RThetowingeye may become detached.
RThevehicle/trailer combination mayswerveorevenoverturn.
#If anothervehicle istow-started ortowedaway, itsweight must notexceed
the permissible gross mass ofyourownvehicle.
If avehicle must betow-started ortowedaway,itsweight must notexceedthe permissible grossmass ofthetowingvehicle.
#Information onthe permissible gross mass ofthevehicle can befound onthevehicle iden‐tification plate (→page 466).
#Do not openthe driver's door or frontpassenger door,otherwisethe automatictransmission automatically shiftstoposition].#Installthetowingeye (→page 429).
#Fastenthetow bar.
*NOTEDamageduetoincorrect connec‐tion
#Only connectthetowrope ortow bartothetowingeyes.
#Deactivatethe automatic locking mechanism(→page 68).
426Breakdown assistance

#Do not activatethe HOLD function.
#DeactivateActive Brake Assist (→page 200).
#Shiftthe automatic transmissiontoposition\\.
#Releasethe electric parking brake.
&WARNINGRisk of accident duetolimi‐ted safety-related functions duringthetowing process
Safety-related functions are limited or no lon‐geravailable inthefollowing situations:
Rthe ignition is switched off.
Rthe brake system or powersteering sys‐tem is malfunctioning.
Rthe energy supply orthe on-board electri‐cal system is malfunctioning.
Whenyourvehicle isthentowedaway, signif‐icantly more effortmay berequiredtosteerand brakethan is normallyrequired.
#Use atow bar.
#Make surethatthesteering wheel canmovefreely, beforetowingthevehicleaway.
*NOTEDamageduetoexcessive tractivepower
Ifyou pullawaysharply,the tractive powermay betoo high andthevehicles could bedamaged.
#Pullawayslowly and smoothly.
Loading thevehiclefor transport
#Observethe notes ontowingaway(→page 426).
#Connectthetow bartothetowingeyetoloadthevehicle.
#Shiftthe automatic transmissiontoposition\\.
%The automatic transmission may be lockedin position]intheevent of damagetotheelectrics.Toshiftto\\, providethe on-
board electrical system with power(→page 423).
#Loadthevehicle ontothe transporter.
#Shiftthe automatic transmissiontoposition].
#Usethe electric parking braketosecurethevehicle againstrollingaway.
#Only securethevehiclebythe wheels.
Vehicles with ADS PLUS (Adaptive DampingSystem PLUS)
&WARNINGRisk of an accident whentransportingvehicles withAdaptiveDamping System PLUS
Thereduced dampingforces onthevehiclebeing transported can causethevehicle/trailer combinationtostarttoswing.
As aresult, when transportingvehicles withtheAdaptive Damping System PLUS,thevehicle/trailer combination maystarttoskid.Consequently,you could lose control ofyourvehicle.
#When transporting, ensurethat:
Breakdown assistance427