2019 MERCEDES-BENZ E CLASS wheel size

Emergency
Removing the safetyvest
The safetyvests are located inthe safetyvestcompartments inthe driver's and frontpassenger doorstowage compartments.
Toremove:pull out safetyvestbag1byloop2.
Open safetyvestbag1andremovethesafetyvest.
1Maximum number ofwashes
2Maximumwashtemperature
3Do not bleach
4Do not iron
5Do not tumble dry
6Do not dry clean
7Class 2 safetyvest
Therequirements definedbythe legalstandardare only fulfilled ifthe safetyvestisthe correctsize and is fully closed.
The safetyvestmust bereplaced inthefollowingsituations:
Rthereflectivestrips are damaged or dirty.
Rthe maximum permissible number ofwashesisexceeded.
Rthefluorescence hasfaded.
Flat tire
Notes onflat tires
\nWARNINGRisk of accident duetoaflattire
Aflat tire severelyaffectsthe drivingcharac‐teristics aswell asthesteering and brakingofthevehicle.
Tires withoutrun-flatcharacteristics:
Do not drive on with aflat tire.
Changetheflat tire immediately with anemergency sparewheel or spare wheel.Alternatively,consult aqualified spe‐cialistworkshop.
364Breakdown assistance

The tire pressuretable shows therecommendedtire pressurefor all tires approvedforthisvehi‐cle. Therecommended tire pressures applyforcold tires undervarious operating conditions, i.e.loading and/or speed ofthevehicle.
If one or more tire sizes precede a tire pressure,the tire pressure informationfollowing is onlyvalidforthose tire sizes.
The load conditions "partially laden" and "fullyladen" are defined inthetablefor different num‐bersof passengers and amounts of luggage. Theactual number of seats may differ fromthis.
Some tire pressuretables only showtherimdiameter instead ofthe completetire size, e.g.R18. Therim diameter is part ofthe tire size andcan befound onthe tire sidewall (→page 400).
Be suretoalso observethefollowing furtherrelated subjects:
RNotes on tire pressure (→page 386)
RTireand Loading Information placard(→page 393)
RMaximum tire pressure (→page 399)
Checking tire pressures manually
Readthe tire pressureforthe current operat‐ing conditions fromtheTireand LoadingInformation placard orthe tire pressuretable. Observethe notes on tire pressure.
Removethevalve cap ofthe tiretobechecked.
Pressthe tire pressuregauge securely ontothevalve.
Readthe tire pressure.
Ifthe tire pressure is lowerthantherecom‐mendedvalue, increasethe tire pressuretotherecommendedvalue.
Ifthe tire pressure is higherthantherecom‐mendedvalue,release air.Todo so, pressdownthe metal pin inthevalve, e.g. usingthe tip of a penforexample. Thencheckthetire pressureagain usingthe tire pressuregauge.
Screwthevalve cap ontothevalve.
388Wheels and tires

Furtherrelated subjects:
RNotes on tire pressure (→page 386)
RTirepressuretable (→page 387)
RTireand Loading Information placard(→page 393)
Tirepressure monitoring system
Function ofthe tire pressure monitoring sys‐tem
\nDANGERRisk of accident duetoincor‐rect tire pressure
Every tire, includingthe spare (if provided),should bechecked when cold at least once amonth and inflatedtothe pressurerecom‐mendedbythevehicle manufacturer (seeTireand Loading Information placard ontheB-pillar onthe driver’sside orthe tire pres‐sure label onthe inside ofthe fuelfillerflapofyourvehicle). Ifyourvehicle has tires of adifferent sizethanthe size indicated ontheTireand Loading Information placard orthe
tire pressuretable,you needtodeterminethe proper tire pressureforthose tires.
As an added safetyfeature,yourvehicle hasbeen equipped with a tire pressure monitor‐ing system (TPMS)that illuminates a low tirepressure indicator lamp when one or more ofyour tires are significantly underinflated.Accordingly, ifthe low tire pressure indicatorlamp lights up,you shouldstop andcheckyour tires as soon as possible, and inflatethemtothe proper pressure. Driving on asignificantlyunderinflated tire causesthe tiretooverheat and can leadtotirefailure.Underinflation also increases fuel consump‐tion andreduces tire tread life, and mayaffectthevehicle's handling and braking abil‐ity. Please notethatthe TPMS is not a substi‐tutefor proper tire maintenance, and it isthedriver'sresponsibilitytomaintain correct tirepressure,even if underinflation has notreachedthe leveltotrigger illumination ofthe TPMS low tire pressure indicator lamp.
Yourvehicle has also been equipped with aTPMS malfunction indicatortoindicate when
the system is not operating properly. TheTPMS malfunction indicator is combined withthe low tire pressure indicator lamp. Whenthe system detects a malfunction,the indica‐tor lamp willflashfor approximatelya minuteandthenremain continuously illuminated.This sequence will continue upon subsequentvehiclestart-ups as long asthe malfunctionexists.
Whenthe malfunction indicator is illumina‐ted,the system may not be abletodetect orsignal low tire pressure as intended. TPMSmalfunctions may occurfor avariety ofrea‐sons, includingthe installation of incompati‐blereplacement or alternate tires or wheelsonthevehiclethat preventthe TPMS fromfunctioning properly.
Alwayscheckthe TPMS malfunctionwarninglamp afterreplacing one or more tires orwheels onyourvehicletoensurethatthereplacement or alternate tires and wheelsallowthe TPMStocontinuetofunction prop‐erly.
Wheels and tires389

Calculationexamplefor determiningthemaximum load
Thefollowingtable showsexamples of howtocalculatetotal and load capacities withvarying
seating configurations and different numbersand sizes of occupants. Thefollowingexamplesuse a maximum load of1500 lbs (680kg).Thisisfor illustration purposes only.Make sureyou are usingthe actual load limitforyourvehi‐
clestated onyourvehicle'sTireand LoadingInformation placard (→page 393).
The highertheweight of allthe occupants,thesmallerthe maximum loadfor luggage.
Step 1
Example1Example 2
Combined maximumweight of occupants andload (data fromtheTireand Loading Informationplacard)
1500 lbs (680kg)1500 lbs (680kg)
Step 2
Example1Example 2
Number of people inthevehicle (driver andoccupants)51
Distribution ofthe occupantsFront: 2
Rear: 3
Front: 1
Wheels and tires395

Tirelabeling
Overview of tire labeling
1Uniform TireQuality GradingStandard(→page 397)
2DOT,TireIdentificationNumber(→page 398)
3Maximum tire load (→page 399)
4Maximum tire pressure (→page 399)
5Manufacturer
6Characteristics ofthe tire (→page 400)
7Tiresize designation, load-bearing capacity,speedrating and load index (→page 400)
8Tirename
The datashown inthe image isexampledata.
TireQuality Grading
In accordance withthe US Department ofTrans‐portation's "Uniform TireQuality GradingStand‐ards", tire manufacturers arerequiredtogradetheir tires onthe basis ofthefollowingthree per‐formancefactors:
1Treadweargrade
2Tractiongrade
3Temperature grade
The data shown inthe image isexampledata.
The classification is not legallystipulatedforCanada, but it isgenerallystated.
TreadweargradeThe treadwear grade is a comparativeratingbased onthewearrateofthe tire whentestedunder controlled conditions on a specifiedtesttrack ofthe US Department ofTransportation.Forexample, a tiregraded150wouldwear one
Wheels and tires397

The data shown inthe image isexampledata.
The TIN is a unique identification numbertoidentify tires and comprisesthefollowing:
RDOT (Department ofTransportation):tiresymbol marks1indicatingthatthe tirecomplies withtherequirements ofthe USDepartment ofTransportation.
RManufacturer identification code:manu‐facturer identification code2containsdetails ofthe tire manufacturer. New tireshavea code with two symbols.Retreadedtires havea code withfour symbols.Furtherinformation onretreaded tires (→page405).
RTiresize:identifier3describesthe tiresize.
RTiretype code:tire type code4can beusedbythe manufacturer as a codetodescribe specificcharacteristics ofthe tire.
RManufacturing date:manufacturing date5provides information aboutthe age of atire. The 1st and 2nd positionsrepresentthecalendarweek andthe 3rd and 4th positionsstatetheyear of manufacture (e.g. "3208"representsthe 32ndweek of 2008).
Information onthe maximum tire load
The data shown inthe image isexampledata.
Maximum tire load1isthe maximum permissi‐bleweightfor whichthe tire is approved.
Do notoverloadthe tiresby exceedingthe speci‐fied load limit. The maximum permissible loadcan befound onthevehicle'sTireand LoadingInformation placard onthe B-pillar onthe driv‐er's side (→page 393).
Specificationsfor maximum tire pressure
The datashown inthe image isexampledata.
Wheels and tires399

Neverexceed maximum tire pressure1speci‐fiedforthe tire.
Information on tirecharacteristics
The data shown inthe image isexampledata.
This information describesthe type of tire cordandthe number of layersin sidewall1andunder tire tread2.
Tiresize designation, load-bearing capacity,speedrating and load index
\nWARNINGRisk 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.
1Preceding letter
2Nominal tire width in millimeters
3Aspectratio in %
4Tirecode
5Rim diameter
6Load-bearing index
7Speedrating
8Load index
The data shown inthe image isexampledata.
Information aboutreading tire data can beobtained from anyqualified specialistworkshop.
400Wheels and tires

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.
404Wheels and tires