2019 MERCEDES-BENZ S CLASS coolant level

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

#Followthe instructions inthe serviceinterval displayregardingthe oilchange.
*NOTEDamagecausedbyaddingtoomuch engine oil
Too much engine oil can damagethe engineorthe catalytic converter.
#Haveexcess engine oilremoved at aqualified specialistworkshop.
#Turncap1counter-clockwise andremoveit.
#Add engine oil.
#Replace cap1and turn it clockwise asfaras it will go.
#Checkthe oil level again (→page 399).
Checking coolant level
&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.
&WARNINGRisk of scalding from hotcoolant
The engine cooling system is pressurized,particularly whenthe engine iswarm. Ifyouopenthe cap,you could be scaldedbyhotcoolant spraying out.
#Letthe engine cool down before open‐ingthe cap.
#When openingthe cap,wear protectivegloves and safetyglasses.
#Openthe cap slowlytorelease pres‐sure.
Maintenance and care401

#Parkthevehicle on a level surface.
#Checkthe coolanttemperature display intheinstrument cluster.The coolanttemperature must be below158 °F (70 °C).
#If necessary,removethe cover.
#Slowly turn cap1counter-clockwisetorelieve overpressure.
#Continue turning cap1counter-clockwiseandremoveit.
The coolant level is correct:
RIfthe engine is cold, uptomarker bar2.
RIfthe engine iswarm, upto0.6 in (1.5 cm)over marker bar2.
#If necessary,add coolantthat has beenapprovedbyMercedes-Benz.RFurther information on coolant:(→page472)
Addingwasherfluidtothe windshieldwasher system
&WARNINGRisk of burns from hot com‐ponent parts inthe engine compartment
Certain component parts inthe engine com‐partment can beveryhot, e.g.the engine,the cooler and parts oftheexhaust system.
#Letthe engine cool down and onlytouchthe component parts describedasfollows.
&WARNINGDanger of burns when open‐ingthe hood
Ifyou openthe hood whenthe engine hasoverheated or during afireinthe enginecompartment,you could come into contactwith hotgases orother escaping operatingfluids.
#Before openingthe hood, allowtheenginetocool down.
#Intheevent of afireinthe engine com‐partment,keepthe hood closed andcallthefireservice.
&WARNING‑ Risk offireand injury fromwindshieldwasher concentrate
Windshieldwasher concentrate is highlyflammable. It could ignite if it comes intocontact withhot engine component parts ortheexhaust system.
#Make surethat no windshieldwasherconcentrate spills out nexttothefilleropening.
402Maintenance and care

Display messagesPossible causes/consequences andPPSolutions
#Consult aqualified specialistworkshop.
=
Stop Vehicle Leave EngineRunning
*The batterychargelevel istoo low.
#Pullover andstopthevehicle safely as soon as possible, paying attentiontoroad and traffic conditions. Do notcontinue driving under any circumstances.
#Leavethe enginerunning.
#Wait untilthe display message disappears before pullingaway.
Check Coolant Level SeeOperator's Manual
*The coolant level istoo low.
*NOTEEngine damageduetoinsufficient coolant
#Avoid long journeyswith insufficient coolant.
#Add coolant (→page 401).

Warning/indicator lampPossible causes/consequences andPPSolutions
or
#Exitthevehicle andkeep a safe distance from it untilthe engine has cooled down.
#Checkthe coolant level (→page 401).
#Make surethatthe air supplytotheradiator is not obstructed.
#Avoiding high loads onthe engine, drivetothe nearestqualified specialistworkshop. In doing so, ensurethatthecoolanttemperature displayremains belowthered area.
Tires
Warning/indicator lampPossible causes/consequences andPPSolutions
w
Tirepressure monitoringsystemwarning lamp lightsup
Theyellow tire pressure monitoring systemwarning lamp (pressure loss/malfunction) is lit.
The tire pressure monitoring system has detected tire pressure loss in at least one ofthe tires.
&WARNINGRisk of an accident duetoinsufficient tire pressure
Tirepressuresthat aretoo low posethefollowing hazards:
RThe tires may burst, especially asthe load andvehicle speed increase.
RThe tires maywearexcessively and/or unevenly,which may greatly impair tire traction.
RThe drivingcharacteristics, aswell assteering and braking, may be greatly impaired.
You couldthen lose control ofthevehicle.
Display messages andwarning/indicator lamps533

Coolant (engine)Check level .......................................... 401Filling capacity .....................................473Notes ...................................................472
CopyrightLicenses ................................................ 29Trademarks............................................ 29
Cornering light function..........................14 8
Coversee Side windows
CrossTraffic Alert...................................236
Crosswind AssistFunction/notes ...................................19 5
Crosswind Assistsee MAGICBODYCONTROL
Cruise control.......................................... 200Buttons ................................................ 201Calling up a speed ............................... 201Function .............................................. 200Requirements: .....................................201Selecting ............................................. 201Setting a speed .................................... 201Storing a speed ................................... 201
Switching off ....................................... 201Switching on ........................................201System limitations ...............................200
Cup holder................................................131Installing/removing (center console) ...131Rear passenger compartment (vehi‐cles with arear benchseat) .................13 2Rear passenger compartment (vehi‐cles with electrically adjustablerearseats) ..................................................13 2Removing/installingthe insert (vehi‐cles with electrically adjustablerearseats) ..................................................13 2Switchingthe cooling/heating func‐tion on/off ..........................................13 3
Cushionbag................................................ 38
Customer Assistance Center (CAC).........25
CustomerRelations Department.............25
D
Dashboardsee Cockpit
Dashboard lightingsee Instrument cluster lighting
Data acquisitionVehicle .................................................. 26
Data import/export................................ 294Function/notes ................................... 294Importing/exporting ........................... 294
DatastorageElectronic control units .........................26Online services ......................................27Vehicle .................................................. 26
DateSettingthe time and date automati‐cally ..................................................... 288
Daytimerunning lamp modesee Daytimerunning lights
Daytimerunning lights...........................14 9Switching on/off .................................14 9
Deactivatingthe alarm(ATA)....................91
Dealershipsee Qualified specialistworkshop
Declaration of conformityWirelessvehicle components ................23
Decorativefoil (cleaning instructions)...................................................................406
544Index