2019 MERCEDES-BENZ S CLASS air condition

Traffic Sign Assist
Function ofTraffic Sign Assist
SinceTraffic Sign Assistalso usesthe datastored inthe navigation system, it can updatethe display inthefollowing situations withoutdetecting traffic signs:
RWhenthevehiclechangesroads, e.g. a free‐way entry orexitroad.
RWhen a village or city boundary which isstored inthe digital map is passed.
The camera also detects traffic signs with arestriction indicatedbyan additional sign (e.g. inwet conditions).
Traffic Sign Assistis only an aid. The driver isresponsibleforkeeping a safe distancetothevehicle in front,forvehicle speed andfor brakingin good time. The maximum permissible speedalso depends onfactors suchastheroad sur‐face and traffic conditions.
Warning whenthe maximum permissiblespeed isexceededThe system canwarnyou ifyou unintentionallyexceedthe maximum permissible speed.Todothis,you can specify inthe multimedia systembyhow muchthe maximum permissible speedcan beexceeded before awarning is issued.Yo ucan specify whetherthewarning istobe just avisualwarning or an acoustic one aswell.
Display inthe Instrument DisplayTraffic Sign Assistis notavailable in all coun‐tries. If it is unavailable, display1is shown inthe speedometer.
System limitations
The system may be impaired or may not functioninthefollowing situations:
RIfthere is poor visibility, e.g. duetoinsuffi‐cient illumination oftheroad, ifthere arehighlyvariable shade conditions or inrain,snow,fog or heavy spray.
RIfthere isglare, e.g. from oncoming traffic,direct sunlight orreflections.
RIfthe windshield inthe area ofthe multifunc‐tion camera is dirty, or ifthe camera isfog‐ged up, damaged or covered.
RIfthe traffic signs are hardtodetect, e.g. duetodirt or snow,or becausetheyare coveredor duetoinsufficient lighting.
RIfthe information inthe navigation system'sdigital map is incorrect or out-of-date.
RIfthe signs are ambiguous, e.g. traffic signson construction sites or in adjacent lanes.
RIfyou turn sharply when traffic signs are out‐sidethe camera'sfield of vision.
Driving and parking239

RYou haveadopted a sporty drivingstyle withhigh cornering speeds or highrates of accel‐eration.
RWhen ESP®is deactivated.
RIf a loss of tire pressure or afaulty tire hasbeen detected and displayed.
The system may be impaired or may not functioninthefollowing situations:
RIfthere is poor visibility, e.g. duetoinsuffi‐cient illumination oftheroad, ifthere arehighlyvariable shade conditions or inrain,snow,fog or heavy spray.
RIfthere isglare, e.g. from oncoming traffic,the sun orreflections.
RIfthe windshield inthe area ofthe multifunc‐tion camera is dirty, or ifthe camera isfog‐ged up, damaged or covered.
RIfthere are no lane markings, or severalunclear lane markings are presentfor onelane, e.g. aroundroadworks.
RIfthe lane markings areworn, dark or cov‐ered.
RIfthe distancetothevehicle in front istooshort andthusthe lane markings cannotbedetected.
RIfthe lane markingschangequickly,e.g.lanes branch off, cross one another ormerge.
RIftheroadwayisverynarrow and winding.
Vehicles with Driving Assistance packageorDriving Assistance Plus package:Active LaneKeeping Assist usesradar sensorstomonitorseveral areas aroundthevehicle. Iftheradarsensors intherear bumper are dirty or coveredwith snow,the system may be impaired or maynot function. If an obstacle inthe lane in whichyou are driving has been detected, no lane-cor‐recting brake application occurs.
Activating/deactivatingActive LaneKeepingAssist (vehicles withParking AssistPARKTRONIC)
&WARNINGRisk of accident despiteActive LaneKeeping Assistwarning
A lane-correcting brake application cannotalwaysbringthevehicle back intothe origi‐nal lane.
#Alwayssteer, brake or accelerateyour‐self, especially ifActive LaneKeepingAssistwarnsyou or makes a lane-cor‐recting brake application.
&WARNINGRisk of accident despiteinter‐vention ofActive LaneKeeping Assist
Active LaneKeeping Assist does not detecttraffic conditions orroad users. Inveryrarecases,the system may make an inappropri‐ate brake application, e.g. after intentionallydrivingover a solid lane marking.
The brake application can be interrupted atany time ifyousteer slightly inthe oppositedirection.
248Driving and parking

Instrument Displayoverview
&WARNINGRisk of accident duetoaninstrument display malfunction
Ifthe Instrument Display hasfailed or mal‐functioned,you may notrecognize functionrestrictions applyingtosafetyrelevant sys‐tems.
The operating safety ofyourvehicle may beimpaired.
#Drive on carefully.
#Havethevehiclechecked immediatelyat aqualified specialistworkshop.
Mercedes‑AMGvehicles:observethe notes inthe Supplement. Otherwise,you mayfailtorec‐ognize dangers.
Plug-inhybrid:observethe notes inthe Supple‐ment. Otherwise,you mayfailtorecognize dan‐gers.
Ifthe operating safety ofyourvehicle isimpaired, parkthevehicle safely as soon as pos‐sible. Contact aqualified specialistworkshop.
Instrument Display
1Speedometer
2Multifunction display
3Tachometer
4Coolanttemperaturegauge
5Fuel level and fuelfillerflap location indica‐tor
%This display is anexample. Other displaysare possible instead oftachometer3.
The segments in speedometer1indicatethesystemstatusforthefollowing:
RCruise control (→page 200)
RActive Distance AssistDISTRONIC(→page203)
Vehicles withTraffic Sign Assist:Detectedinstructions and traffic signs will appear onthespeedometer (→page 239).
*NOTEEngine damageduetoexcessivelyhigh engine speeds
The engine will be damaged ifyou drive withthe engine intheoverrevvingrange.
#Do not drive with the engine intheover‐revvingrange.
Theoverrevvingrange is shown inred ontach‐ometer3. Whentheoverrevvingrange isreached,the fuel supply will be interruptedtoprotectthe engine.
During normal operating conditions, coolanttemperature display4mayriseto248 °F(120 °C).
Instrument Displayand on-board computer251

Theroad and trafficrules andregulations alwayshavepriorityover multimedia system drivinginstructions.
Thefollowing driving instructions can be used:
RNavigation announcements
RRoute guidance displays
RLanerecommendations
Ifyou do notfollowthe driving instructions or ifyou leavethe calculatedroute, a newroute iscalculated automatically.
Driving instructions may differ fromthe actualroad and traffic conditions if:
RTheroute is diverted
RThe direction of a one-waystreethas beenchanged
Forthisreason,you must always observeroadand trafficrules andregulations duringyourjourney aswell asthe prevailing traffic condi‐tions.
Theroute may differ fromthe idealroute duetothefollowing:
RRoadworks
RIncompletedigital map data
Notes on GPSreceptionThe correct function ofthe navigation systemdepends amongstotherthings on GPSrecep‐tion. In certain situations GPSreception can beimpaired, defective oreven not possible, e.g. intunnels or in parkinggarages.
Changing directionoverview
There arethree phases whenchanging direction:
RPreparation phase
Ifthere is enough time betweenthechangesof direction,the multimedia system preparesyouforthe upcomingchange of direction. Anavigation announcement is issued, e.g."Preparetoturnright".
The map appears in full-screen mode.
RAnnouncement phase
The multimedia system announcestheupcomingchange of direction, e.g.byannouncing "Turnright in 300ft(100 m)".
The display is split into two parts. The map isdisplayed onthe left;ontheright,there is adetailed image ofthe intersection or a 3Dimage ofthe upcomingchange of direction.
RChange-of-direction phase
The multimedia system announcesthe immi‐nentchange of direction, e.g.byannouncing"Now turnright".
The display is split into two parts.
Thevehicle has successfullychanged direc‐tion whenthe light-color bar ontheright
Multimedia system313

%Ifthere is a malfunction inthe emergencycall system (e.g. a malfunction withthespeaker, microphone, airbag, SOS button), acorresponding message appearsinthe mul‐tifunction display ofthe instrument cluster.
Triggering an automatic emergency call
RequirementsRThe ignition is switched on.
RThestarter battery is sufficientlycharged.
Ifrestraint systems such as airbags or Emer‐gencyTensioning Devices havebeen activatedafter an accident,the Mercedes-Benz emer‐gency call system may automatically initiate anemergency call.
The emergency call has been made:
RAvoice connection is madetothe Mercedes-Benz emergency call center.
RA messagewith accident data is transmittedtothe Mercedes-Benz emergency call center.
The Mercedes-Benz emergency call centercan transmitthevehicle position datatooneofthe emergency call centers.
The SOS button intheoverhead control panelflashes untilthe emergency call isfinished.
It is not possibletoimmediately end an auto‐matic emergency call.
If no connection can be madetothe emergencyservices either, a corresponding messageappearsinthe media display.
#Dialthe local emergency number onyourmobile phone.
If an emergency call has been initiated:
RRemain inthevehicle iftheroad and trafficconditions permityoutodo so until avoiceconnection is established withthe emer‐gency call center operator.
RBased onthe call,the operator decideswhether it is necessarytocallrescueteamsand/orthe policetothe accident site.
RIf novehicle occupant answers, an ambu‐lance is senttothevehicle immediately.
Triggering a manual emergency call#Press and holdthe SOS button intheover‐head control panelfor at leastone second.
The emergency call has been made:
RAvoice connection is madetothe Mercedes-Benz emergency call center.
RA messagewith accident data is transmittedtothe Mercedes-Benz emergency call center.
The Mercedes-Benz emergency call centercan transmitthevehicle position datatooneofthe emergency call centers.
RRemain inthevehicle iftheroad and trafficconditions permityoutodo so until avoiceconnection is established withthe emer‐gency call center service provider.
ROnthe basis ofthe call,the service providerdecides whether it is necessarytocallres‐cueteams and/orthe policetothe accidentsite.
If no connection can be madetothe emergencyservices either, a corresponding messageappearsinthe media display.
#Dialthe local emergency number onyourmobile phone.
Multimedia system347

Rfrequent operation in mountainousterrain oron poorroad surfaces
Rwhenthe engine is often leftidlingfor longperiods
Roperation in particularly dusty conditionsand/or if air-recirculation mode is frequentlyused
Inthese or similar operating conditions, havetheinterior airfilter, engine air cleaner, engine oiland oilfilteretc.changed more frequently. Thetires must bechecked more frequently ifthevehicle is operated under increased loads.Fur‐ther information can be obtained at aqualifiedspecialistworkshop.
Battery disconnection periods
The ASSYST PLUS service interval displaycan only calculatethe service due datewhenthe batteryis connected.
#Notedownthe service due date displayed onthe instrument display before disconnectingthe battery (→page 395).
Engine compartment
Active hood (pedestrian protection)
Operation ofthe active hood (pedestrian pro‐tection)In certain accident situations,therisk of injurytopedestrians can bereducedbythe actuationofthe active hood. Therear area ofthe hood israisedbyapproximately 80 mm.
Forthe drivetotheworkshop,resetthe trig‐gered active hoodyourself. Afterthe active hoodhas been triggered, pedestrian protection maybe limited.
Aqualified specialistworkshop mustre-instatethe full functionality ofthe active hood.
The active hood is notavailable in all countries.
Resettingthe active hood
&WARNINGRisk of burns from hot com‐ponent parts inthe engine compartment
Certain components inthe engine compart‐ment can beveryhot, e.g.the engine,theradiator and parts oftheexhaust system.
#Allowthe enginetocool down and onlytouch component parts described inthefollowing.
#Withyour handflat, push down active hood1inthe area aroundthe hinges on bothsides (arrows).The hood must engage in position.
#Ifthe active hood can beraised slightly attherear inthe area ofthe hinges,repeatthestep until it engages correctly.
396Maintenance and care

#Removecap1bythetab, place onthe edgeofthefiller opening and engage in place.
#Addwasherfluid.
Keepingthe air-water duct free
#Keepthe area betweenthe hood andthewindshield free of deposits, e.g. ice, snowand leaves.
Cleaning and care
Notes onwashingthevehicle in a carwash
&WARNINGRisk of accident duetoreduced braking effect afterwashingthevehicle
The braking effect isreduced afterwashingthevehicle.
#Afterthevehicle has beenwashed,brake carefully while paying attentiontothe traffic conditions untilthe brakingeffect has been fullyrestored.
*NOTEDamageduetounsuitable carwash
#Before driving into a carwash makesurethatthe carwash is suitableforthevehicle dimensions.
#Ensurethere is sufficient ground clear‐ance betweenthe underbody andtheguiderails ofthe carwash.
#Ensurethatthe clearance width ofthecarwash, in particularthe width oftheguiderails, is sufficient.
Toavoid damageto yourvehicle when using acarwash, ensurethefollowing beforehand:
RActive Distance AssistDISTRONIC andtheHOLD function are deactivated.
Rthe 360° Camera ortherear view camera isswitched off.
Rthe side windowsand sliding sunroof arecompletelyclosed.
Rthe blowerfortheventilation/heating isswitched off.
Rthe windshield wiper switch is in positionZ.
Rin carwashes with a conveyor system: neu‐tral\\is engaged.
Rthe SmartKeyis at a distance of at least10ft(3 m)awayfromthevehicle,otherwisethetrunk lid could open unintentionally.
Maintenance and care403

Observethefollowing information:
CleaningAvoiding damagetothe decorativefoil
RFor cleaning, use plenty ofwater and a mild cleaning agent withoutadditives or abrasivesubstances, e.g. a car shampoo approvedforMercedes-Benz.
RRemovedirt immediately, where possible, whilstavoidingrubbingtoo hard. There isotherwise arisk of damagingthe decorativefoilirreparably.
RIfthere is dirt onthefinish or ifthe decorativefoil is dull: usethePaint Cleanerrecommended and approvedfor Mercedes-Benz.
RInsectremains: soak with insectremover andrinse offthe treatedareas afterwards.
RBird droppings: soak withwater andrinse off afterwards.
RTopreventwaterstains, dry afoil-wrappedvehicle with a soft,absorbent clothaftereverycarwash.
RThe service life and color of decorativefoils are impairedby:
-sunlight
-temperature, e.g. hot air blower
-weather conditions
-stonechippings and dirt
-chemical cleaning agents
-oily products
RDo not use polish on matte decorativefoil.Polishing will havethe effectof shiningthefoil-wrapped surface.
RDo not treat matte orstructured decorativefoils withwax.Permanentstains may occur.
Scratches, corrosive deposits, areas affectedbycorrosion and damage causedbyincorrect carecannot alwaysbe completelyrepaired. In suchcases, visit aqualified specialistworkshop.
You can obtain more information on care andcleaning products fromthe manufacturer.
Inthe case offoil-wrapped surfaces, optical dif‐ferences may occur betweenthe surfacesthatwerenot protectedbya decorativefoil afterremoving a decorativefoil.
%Haveworkorrepairstodecorativefoils car‐ried out at aqualified specialistworkshop,e.g. in an authorized Mercedes-Benz Center.
Maintenance and care407