2019 MERCEDES-BENZ S CLASS coolant temperature

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

#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

UniformTireQuality GradingStandards:auniformstandardtogradethequality of tireswithregardtotreadquality,tire traction andtemperaturecharacteristics. Thequality gradingassessment is madebythe manufacturerfollow‐ing specifications fromtheU.S. government. Thequalitygrade of a tire is imprinted onthe sidewall ofthe tire.
Recommended tire pressure:therecommen‐ded tire pressure isthe tire pressure specifiedforthe tires mountedtothevehicle atthefac‐tory.
The tire and informationtable containstherec‐ommended tire pressuresfor cold tires,the max‐imum permissible load andthe maximum per‐missiblevehicle speed.
The tire pressuretable containstherecommen‐ded tire pressuresfor cold tires undervariousoperating conditions, i.e. loading and/or speedofthevehicle.
Increasedvehicleweight duetooptionalequipment:the combinedweight of allstandardand optional equipmentavailableforthevehicle,
regardless of whether it is actually installed onthevehicle or not.
Rim:the part ofthe wheel on whichthe tire isinstalled.
GAWR (Gross AxleWeightRating):the GAWRisthe maximum permissible axle load. Theactual load on an axle must neverexceedthegrossaxleweightrating. The gross axleweightrating can befound onthevehicle identificationplate onthe B‑pillar onthe driver's side.
Speedrating:the speedrating is partofthe tireidentification. It specifiesthe speedrangeforwhich a tire is approved.
GVW (GrossVehicleWeight):the grossvehicleweight comprisestheweight ofthevehicleincluding fuel,tools,the spare wheel, accesso‐ries installed, occupants, luggage andthe trailerdrawbar noseweight, if applicable. Thegrossvehicleweight must notexceedthe grossvehicleweightratingGVWR as specified onthevehicleidentification plate onthe B‑pillar onthe driver'sside.
GVWR (GrossVehicleWeightRating):theGVWR isthe maximum permitted grossweight
ofthe fully ladenvehicle (weight ofthevehicleincluding all accessories, occupants, fuel, lug‐gageandthe trailer drawbar noseweight if appli‐cable). Thegrossvehicleweightrating is speci‐fied onthevehicle identification plate ontheB‑pillar onthe driver's side.
Maximumweight ofthe ladenvehicle:themaximumweight isthe sum ofthe curbweightofthevehicle,theweight ofthe accessories,themaximum load andtheweight of optional equip‐ment installed atthefactory.
Kilopascal (kPa):metric unitfor tire pressure.6.9 kPa correspondsto1 psi. Another unitfortire pressureis bar.100 kilopascal (kPa) equals1 bar.
Load index:in additiontothe load-bearingindex,the load index may also be imprinted onthe sidewall ofthe tire. This specifiesthe load-bearing capacity ofthe tire more precisely.
Curbweight:theweight of avehicle withstand‐ard equipment includingthe maximum capacityof fuel, oil and coolant. It also includesthe airconditioning system and optional equipment if
452Wheels and tires

Information on coolant isavailable atthefol‐lowing locations:
RInthe Mercedes-Benz SpecificationforOperating Fluids310.1
-Athttp://bevo.mercedes-benz.com
-Inthe Mercedes-Benz BeVo app
RAtaqualified specialistworkshop
*NOTEOverheating at high outsidetem‐peratures
If an inappropriate coolant is used,theengine cooling system is not sufficiently pro‐tected againstoverheating and corrosion athigh outsidetemperatures.
#Always use coolant approvedbyMercedes-Benz.
#Observethe instructions intheMercedes-Benz Specificationsfor Oper‐ating Fluids310.1.
Havethe coolantregularlyreplaced at aqualifiedspecialistworkshop.
The proportion of corrosion inhibitor/antifreezeconcentrate inthe engine cooling system shouldbe:
Ra minimum of 50% (antifreeze protectiondowntoapproximately -35 °F (-37 °C))
Ra maximum of 55% (antifreeze protectiondownto-49 °F (-45 °C))
Coolant capacity
SedanCapacity
S 450 4MATIC13.9 US qt(13.2 liters)
S 560 4MATIC15.0 US qt(14.2 liters)
Long wheelbasevehiclesCapacity
S 450 4MATIC
S 450
13.9 US qt(13.2 liters)
Allother models15.0 US qt(14.2 liters)
Mercedes‑MaybachCapacity
S 650 Mercedes-May‐bach16.9 US qt(16.0 liters)
S 560 4MATICMercedes-Maybach15.0 US qt(14.2 liters)
Notes on windshieldwasher fluid
Observethe notes on operatingfluids(→page 468).
&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.
Technical data473

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