fuel pressure MERCEDES-BENZ C CLASS 2019 User Guide

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 ifthese 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 hourswithout 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 wheel
rim. 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.
41 0Wheels and tires

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.
Only use tires, wheels and accessoriesthathavebeenchecked andrecommendedbyMercedes-Benz.
NOTERisktodriving safety fromretrea‐ded tires
Retreaded tires are neithertested norrecom‐mendedbyMercedes-Benz, since previousdamage cannot always be detected onretreaded tires.
Forthisreason driving safety cannot be guar‐anteed.
Do not use used tires ifyou havenoinformation abouttheir previous usage.
NOTEPossible damagetowheels or tireswhen drivingover obstacles
Large wheels havea lower tire section width.The lowerthe tire section width,the greateristherisk of damagetowheels or tires whendrivingover obstacles.
Avoid obstacles or drive particularlycarefully.
NOTEDamagetoelectronic componentparts fromthe use of tire-mountingtools
Vehicles with a tire pressure monitoringsystem:Electronic component parts arelocated inthe wheel.Tire-mountingtoolsshould not be used inthe area ofthevalve.
This couldotherwise damagethe electroniccomponent parts.
Havethe tireschanged at aqualifiedspecialistworkshop only.
NOTEDamagetosummer tires at lowambienttemperatures
Atlow ambienttemperatures,tears couldformwhen driving with summer tires, caus‐ing permanent damagetothe tires.
Attemperatures below 45 °F (7 °C),use M+S tires .
Accessory partsthat are not approvedforyourvehiclebyMercedes-Benz or are not being usedcorrectly can impairthe operating safety.
Before purchasing and using non-approvedaccessories, visit aqualified specialistworkshopand inquire about:
RSuitability
RLegalstipulations
RFactoryrecommendations
\nWARNINGRisk of accident withhighperformance tires
The special tire tread in combination withtheoptimized tire compound meansthattherisk
412Wheels and tires

Active Service System PLUSsee ASSYSTPLUS
Active Speed Limit Assist.......................187Display.................................................187Function ..............................................187
ActiveSteering Assist.............................189Activating/deactivating .......................191Active EmergencyStop Assist .............193Active Lane Change Assist...................191Displays inthe Instrument Display ......19 3Function ..............................................189System limitations ...............................189
Adaptive cruise controlseeActive Distance AssistDISTRONIC
Adaptive Highbeam AssistFunction ..............................................12 5Switching on/off .................................12 6
AdditionalvaluerangeSetting display content ........................ 229
Additives.................................................. 427Engine oil ............................................. 427Fuel ..................................................... 427
Additives (engine oil)seeAdditives
Additives (fuel)seeFuel
Address booksee Contacts
Adjusting the balance/fader
Burmester®surround sound system ... 350
Adjusting the headlamprange...............12 3
Adjusting the soundfocus
Burmester®surround sound system ... 350
Adjusting treble, mid-range and basssettings
Burmester®surround sound system ... 350
ADS PLUS damping systemsee AIRMATIC
After-sales service centersee ASSYST PLUS
Air bagReduced protection ...............................42
Air conditioning systemsee Climate control
Air distributionSetting .................................................138
Air freshener systemseePerfume atomizer
Air inletsee Air-water duct
Air pressureseeTirepressure
Air suspensionsee AIRMATIC
Airvents...................................................14 3Adjusting (front) ..................................14 3Adjusting (rear) ....................................14 3
Airventssee Airvents
Air-recirculation mode.............................141
Air-water duct.......................................... 358Keeping free ........................................358
Airbag.........................................................40Activation .............................................. 34Front airbag (driver, front passenger) ....40Installation locations .............................40Knee airbag ........................................... 40
494Index