2019 MERCEDES-BENZ S CLASS tire size

these are installed onthevehicle, but does notinclude passengers or luggage.
Maximum tire load:the maximum tire load isthe maximum permissibleweight in kilograms orlbsfor whicha tire is approved.
Maximum permissible tire pressure:maxi‐mum permissible tire pressurefor one tire.
Maximum load on one tire:maximum load onone tire. This is calculatedbydividingthe maxi‐mum axle load of one axlebytwo.
PSI (pounds per square inch):standard unit ofmeasurementfor tire pressure.
Aspectratio:ratio between tire height and tirewidth in percent.
Tirepressure:pressure insidethe tire applyingan outwardforcetoeverysquare inch ofthe tire.The tire pressure is specified in pounds persquare inch (psi), in kilopascals (kPa) or in bar.The tire pressure should only be corrected whenthe tires are cold.
Cold tire pressure:the tires are cold whenthevehicle has been parkedfor at least3 hours
without direct sunlight onthe tires orthevehiclehas been drivenfor lessthan 1 mile (1.6 km).
Tirecontact surface:the part ofthe tirethatcomes into contact with theroad.
Tirebead:the purpose ofthe tire bead istoensurethatthe tire sits securely onthe wheelrim. There are several wire cores inthe tire beadtopreventthe tire fromchanging length onthewheelrim.
Sidewall:the part ofthe tire betweenthe treadandthe tire bead.
Weight of optional equipment:the combinedweight ofthe optional equipmentweighing morethanthereplacedstandard parts and morethan5 lbs (2.3kg).This optional equipment, such ashigh-performance brakes, level control system, aroof luggagerackor high-performance batteries,is not included inthe curbweight andtheweightofthe accessories.
TIN (Tire IdentificationNumber):a uniqueidentification number which can be usedby atire manufacturertoidentify tires,forexample,in a productrecall, andthus identifythe pur‐chasers. The TIN is made up ofthe manufactur‐
er's identity code, tire size, tire type code andthe manufacturing date.
Load-bearing index:the load-bearing index is acodethat containsthe maximum load-bearingcapacity of a tire.
Traction:traction isthe gripresulting from fric‐tion betweenthe tires andtheroad surface.
Wear indicator:narrowbars (treadwear bars)that are distributedoverthe tire contact surface.Ifthe tire tread is level withthe bars,thewearlimit of 1/16in (1.6 mm) has beenreached.
Distribution ofvehicle occupants:distributionofvehicle occupantsover designated seat posi‐tions in avehicle.
Maximum permissible payloadweight:nomi‐nal load and luggage load plus150 lb (68kg)multipliedbythe number of seats inthevehicle.
Wheels and tires453

Changing a wheel
Notes on selecting, installing andreplacingtires
Mercedes-AMGvehicles:observethe notes inthe Supplement. Otherwise,you may notrecog‐nize dangers.
You can askfor informationregarding permittedwheel/tire combinations at an authorizedMercedes-Benz Center.
&WARNINGRisk of accident duetoincor‐rect dimensions of wheels and tires
If wheels and tires ofthe wrong size areinstalled,the wheel brakes or wheel suspen‐sion components may be damaged.
#Alwaysreplace wheels and tires withthosethat fulfillthe specifications ofthe original part.
Whenreplacing wheels, make suretofitthecorrect:
RDesignation
RModel
Whenreplacing tires, make suretoinstallthecorrect:
RDesignation
RManufacturer
RModel
&WARNINGRisk of injurythroughexceed‐ingthe specified tire loadrating orthepermissible speedrating
Exceedingthe specified tire loadrating orthe permissible speedrating may leadtotiredamageandtothe tires bursting.
#Therefore, only use tire types and sizesapprovedforyourvehicle model.
#Observethe tire loadrating and speedratingrequiredforyourvehicle.
*NOTEVehicle and tire damagethroughtire types and sizesthat havenot beenapproved
For safetyreasons, onlyuse tires, wheelsand accessories which havebeen speciallyapprovedbyMercedes-Benzforyourvehicle.
These tires are specially adaptedtothe con‐
trol systems, such as ABS, ESP®and4MATIC, and marked asfollows:
RMO = Mercedes-Benz Original
RMOE = Mercedes-Benz Original Extended(run-flat tire onlyfor certain wheels)
RMO1 = Mercedes-Benz Original (only cer‐tain AMG tires)
Certaincharacteristics, such as handling,vehicle noise emissions, fuel consumption,etc. mayotherwise be adversely affected.Furthermore,other tire sizes couldresult inthe tiresrubbing againstthe body and axlecomponents when loaded. This couldresultin damagetothe tire orthevehicle.
454Wheels and tires

Observethefollowing when selecting, installingandreplacing tires:
ROnly use tires and wheels ofthe same type(summer tires, winter tires, MOExtendedtires) andthe same make.
ROnly install wheels ofthe same size on oneaxle (left andright).
It is only permissibletoinstall a differentwheel size intheevent of aflat tire in ordertodrivetothe specialistworkshop.
ROnly install tires ofthe correct size ontothewheels.
RVehicles with a tire pressure monitoringsystem:All installed wheels must be equip‐ped with functioning sensorsforthe tirepressure monitoring system.
RAttemperatures below 45 °F (7 °C), use win‐ter tires or all-season tires marked M+Sforall wheels.
Winter tires bearingtheMsnowflake sym‐bol in additiontothe M+S marking providethe best possible grip in wintryroad condi‐tions.
RFor M+S tires, only use tires withthe sametread.
RObservethe maximum permissible speedforthe M+S tires installed.
Ifthis is belowthevehicle's maximum speed,this must be indicatedbyan appropriatelabel inthe driver'sfield of vision.
RBreak in new tires at moderate speedsforthefirst 60 miles (100 km).
RReplacethe tires after sixyears atthe latest,regardless ofwear.
RWhenreplacing with tires that do notfea‐turerun-flatcharacteristics:vehicles withMOExtended tires are not equipped with aTIREFIT kit atthefactory.Equipthevehiclewith a TIREFIT kit afterreplacing with tiresthat do notfeaturerun-flatcharacteristics,e.g. winter tires.
For more information on wheels and tires, con‐tact aqualified specialistworkshop.
Be suretoalso observethefollowing furtherrelated subjects:
RNotes on tire pressure (→page 435)
RTireand Loading Information placard(→page442)
RTiresize designation, load-bearing capacity,speedrating and load index (→page449)
RTirepressuretable (→page 437)
Notes onrotating wheels
&WARNINGRisk of injurythrough differ‐ent wheel sizes
Interchangingthe front andrear wheels ifthewheels or tires havedifferent dimensionsmay severely impairthe drivingcharacteris‐tics.
The wheel brakes or wheel suspension com‐ponents may also be damaged.
#Rotatefront andrear wheels onlyifthewheels and tires are ofthe same dimen‐sions.
456Wheels and tires

Thewear patterns onthe front andrear wheelsdiffer:
RFront wheelswear more onthe shoulder ofthe tire
RRear wheelswear more inthe center ofthetire
Onvehiclesthat havethe same size front andrear wheels,rotatethe wheels accordingtotheintervals inthe tire manufacturer'swarrantybook inyourvehicle documents. Ifthis is notavailable,rotatethe tiresevery3,000to6,000 miles (5,000to10,000 km),depending onthewear. Ensurethatthe directionofrotation is maintained.
It is imperativetoobservethe instructions andsafety notes on "Changing a wheel" when doingso Preparingthevehiclefor a wheelchange(→page 458).
Notes onstoring wheels
Whenstoring wheels, observethefollowingnotes:
RAfterremoving wheels,storethem in a cool,dry and preferably dark place.
RProtectthe tires from contact withoil, greaseor fuel.
Overview ofthe tire-changetool kit
Apart from some country-specificvariants,vehi‐cles are not equipped with a tire-changetool kit.For more information on whichtire-changetoolsarerequired and approvedfor performing awheelchange onyourvehicle, consult aqualifiedspecialistworkshop.
Required tire-changetools may include,forexample:
RJack
RChock
RLug wrench
RAlignment bolt
The tire-changetool kit is located underthetrunkfloor.
1Ratchet
2Alignment bolt
3Jacking support
4Jack
5Lug wrench
6Foldingchock
Wheels and tires457

Selectingthe sound profile
Burmester®high-end 3D surroundsound system ......................................377
Selector leversee DIRECT SELECT lever
Self-testAutomatic front passenger front air‐bag shutoff ............................................ 43
Sensors (Care).........................................409
Service centersee Qualified specialistworkshop
Service interval displaysee ASSYSTPLUS
Servicestation searchStarting automatic search....................312
Setting a speedsee Cruise control
Setting summer time.............................. 288
Settingthe dateformat.......................... 288
Settingthe distance unit........................ 294
SettingthefootwelltemperatureSetting .................................................161
Settingthe map scalesee Map
Shift paddlesseeSteering wheel paddle shifters
ShiftinggearsGearshiftrecommendation ..................17 9
Short messagesseeText messages
Side airbag.................................................38
Side impact protection...........................223
Side windows.......................................76,78Child safety lock intherearpassenger compartment .......................60Closing ..................................................78Closing usingthe SmartKey................... 80Convenience closingfeature .................80Convenience opening ............................ 79Opening .................................................78Opening withthe SmartKey................... 79Problem .................................................81Roller sunblind (electric) ........................76
Size designation (tires)...........................449
Sliding sunroof.......................................... 82Automatic functions .............................. 85Closing .................................................. 82Closing usingthe SmartKey................... 80MAGIC SKYCONTROL (function) ........... 86MAGIC SKYCONTROL (operating) .........86Opening .................................................82Opening withthe SmartKey................... 79Problem .................................................87Rain closing function .............................85
SmartKey................................................... 62Acoustic lockingverification signal ....... 63Battery ..................................................64Energy consumption .............................. 63Features ................................................ 62Keyring attachment ..............................64Mechanicalkey ......................................64Overview ............................................... 62Panic alarm ........................................... 63Problem ................................................. 65Unlocking setting .................................. 63
SmartKeyfunctionsDeactivating .......................................... 63
Smartphonesee AndroidAuto
566Index

Setting summer time ........................... 288Settingthe time and date automati‐cally ..................................................... 288Settingthe time zone .......................... 288Settingthe time/dateformat .............. 288
TIN (Tire IdentificationNumber)............447
Tireand Loading Information placard...442
Tire characteristics.................................449
Tireinflation compressorsee TIREFIT kit
Tireinformation table.............................442
Tirelabeling.............................................446Characteristics ....................................449DOT,TireIdentificationNumber (TIN).............................................................447Load index ...........................................449Load-bearing capacity .........................449Maximum tire load ..............................448Maximum tire pressure .......................448Overview .............................................446Speedrating ........................................449Temperature grade ..............................446TireQuality Grading .............................446Tiresize designation ............................449
Tractiongrade .....................................446Treadwear grade .................................446
Tireload (maximum)...............................448
Tirepressure................................... 437, 438Checking (manually) ............................ 438Checking (tire pressure monitoringsystem) ...............................................440Maximum ............................................448Notes .................................................. 435Restartingthe tire pressure monitor‐ing system ...........................................441Tirepressure monitoring system(function) ............................................. 439Tirepressuretable .............................. 437TIREFIT kit ............................................41 5
Tirepressure monitorRestarting ............................................441Technical data......................................441
Tirepressure monitoring systemCheckingthe tire pressure ..................440Function .............................................. 439
Tire pressure table.................................. 437
Tire Quality Grading................................446
Tiretread................................................. 434
Tire-changetool kitOverview .............................................457
TIREFIT kit................................................41 5Storage location ...................................41 5Using ...................................................41 5
TiresChanging hub caps .............................. 458Characteristics ....................................449Checking .............................................434Checkingthe tire pressure (man‐ually) ................................................... 438Checkingthe tire pressure (tire pres‐sure monitoring system) ......................440Definitions ...........................................451DOT,TireIdentificationNumber (TIN).............................................................447Flat tire ................................................413Installing .............................................. 462Load index ...........................................449Load-bearing capacity .........................449Maximum tire load ..............................448Maximum tire pressure .......................448MOExtended tires ................................414Noise ...................................................434
57 0Index

Notes on installing ...............................454Overview of tire labeling ......................446Removing ............................................. 461Replacing .................................... 454, 458Restartingthe tire pressure monitor‐ing system ...........................................441Rotating ............................................... 456Selection .............................................454Snowchains ........................................ 435Speedrating ........................................449Storing .................................................457Temperature grade ..............................446Tireand Loading Information placard.............................................................442Tirepressure (notes) ........................... 435Tirepressure monitoring system(function) ............................................. 439Tirepressuretable .............................. 437TireQuality Grading .............................446Tiresize designation ............................449TIREFIT kit ............................................41 5Tractiongrade .....................................446Treadwear grade .................................446Unusual handlingcharacteristics ........ 434
Toll systemWindshield ...........................................15 8
ToolseeVehicletool kit
TopTether.................................................. 55
Total distance.......................................... 257Displaying ............................................ 257
Touch Control..........................................279On-board computer ............................. 252Operating ............................................279Settingthe sensitivity ..........................279
Touchpad.................................................. 280Activating/deactivating haptic oper‐ationfeedback .....................................281Operating ............................................ 280Readingthe handwritingrecognitionaloud ................................................... 281Selecting astation and track ...............281Settingthe sensitivity .......................... 281Switching on/off ................................. 280
Tow-bar system.......................................249
Tow-starting............................................. 430
Towingaway............................................ 426
TowingeyeInstalling .............................................. 429Storage location ..................................429
Towing methods...................................... 424
TrackSelecting (audio mode) ....................... 358
Tractiongrade.........................................446
Traffic information...................................318Displayingthe traffic map ....................319Displaying traffic incidents .................. 320Extending a LiveTraffic Informationsubscription .........................................318Issuing hazardwarnings ...................... 320LiveTraffic Information ........................318Overview ..............................................318
Traffic mapsee Map
Traffic Sign Assist...................................239Function/notes ................................... 239Setting .................................................240System limitations ...............................239
Transferredvehicle dataAndroidAuto....................................... 342
Index571

$Yellow electric parking brake
indicator lamp is malfunctioning .........526
Warning/indicator lamps.......................523Overview ............................................. 523PASSENGER AIRBAG ............................ 43
Warranty.................................................... 25
WasherfluidseeWindshieldwasherfluid
Washingbyhand (care).......................... 404
Water tanksee Air-water duct
Weather information............................... 326
Web browserCalling up aweb page .........................350Calling up options ................................ 351Calling upthe settings .........................351Deleting a bookmark ...........................352Deleting browser data .........................352Ending ................................................. 352Managing bookmarks .......................... 352Overview ..............................................351Showing/hidingthe menu ...................350
WebsiteCalling up ............................................ 350Showing/hidingtheweb browsermenu ................................................... 350
WheelchangeLoweringthevehicle ........................... 463Mounting a new wheel ........................ 462Removing a wheel ................................ 461Removing/installing hub caps .............458
Wheelrotation.........................................456
WheelsCare.................................................... 409Changing hub caps .............................. 458Checking ............................................. 434Checkingthe tire pressure (man‐ually) ................................................... 438Checkingthe tire pressure (tire pres‐sure monitoring system) ......................440Definitions ...........................................451DOT,TireIdentificationNumber (TIN).............................................................447Flat tire ................................................413Installing .............................................. 462Load index ...........................................449Load-bearing capacity .........................449
Maximum tire load ..............................448Maximum tire pressure .......................448MOExtended tires ................................414Noise ...................................................434Notes on installing ...............................454Overview of tire labeling ......................446Removing ............................................. 461Replacing .................................... 454, 458Restartingthe tire pressure monitor‐ing system ...........................................441Rotating ............................................... 456Selection .............................................454Snowchains ........................................ 435Speedrating ........................................449Storing .................................................457Temperature grade ..............................446Tireand Loading Information placard.............................................................442Tirecharacteristics ..............................449Tirepressure (notes) ........................... 435Tirepressure monitoring system(function) ............................................. 439Tirepressuretable .............................. 437TireQuality Grading .............................446Tiresize designation ............................449TIREFIT kit ............................................41 5
Index575