check engine MERCEDES-BENZ E CLASS 2019 Owners Manual

SmartKey
Overview of SmartKeyfunctions
\nWARNINGRisk of accident and injuryduetochildren left unattended inthevehicle
Ifchildren are left unattended inthevehicle,theycould:
ROpen doors,thereby endangeringotherpersons orroad users.
RGet out ofthevehicle and be hitbyoncoming traffic.
ROperate vehicle equipment and becometrapped,forexample.
In addition,children could also setthevehi‐cle in motion,forexample,by:
RReleasingthe parking brake.
RShiftingthe automatic transmission outof park position]or shifting manualtransmission into neutral.
RStartingthe engine
When leavingthevehicle, alwaystakethe SmartKeywithyou and lockthevehicle.
Never leavechildren and animals unat‐tended inthevehicle.
Keepthe SmartKeyout ofreach ofchil‐dren.
NOTEDamagetothekey causedbymagneticfields
Keepthekeyawayfromstrong mag‐neticfields.
1Locks
2Batterycheck lamp
3Unlocks
4Opens/closesthe trunk lid
5Panic alarm
The SmartKey mayvaryfromthe one showninthe diagram, depending onthevehicleequipment.
The SmartKeylocksand unlocksthefollowingcomponents:
Rthe doors
Rthe trunk lid
Rthe fuelfillerflap
62Opening and closing

Driving
Notes on Mercedes-AMGvehicles
Observethe notes onthefollowingtopics intheSupplement. Otherwise,you may notrecognizedangers.
RAMGPerformanceexhaust system
RAMG adaptive sport suspension system
Switching onthe power supplyor ignitionusingthestart/stop button
\nWARNINGRisk of accident and injuryduetochildren left unattended inthevehicle
Ifchildren are left unattended inthevehicle,theycould:
Ropen doors,thereby endangeringotherpersons orroad users.
Rget out ofthevehicle and be hitbyoncoming traffic.
Roperate vehicle equipment and becometrapped,forexample.
In addition,children could also setthevehi‐cle in motion,forexample,by:
Rreleasingthe parking brake.
Rshiftingthe automatic transmission out ofpark position].
Rstartingthe engine
Never leavechildren and animals unat‐tended inthevehicle.
When leavingthevehicle, alwaystakethe SmartKeywithyou and lockthevehicle.
Keepthe SmartKeyout ofthereach ofchildren.
\nDANGERRisk offatal injuries duetoexhaustgases
Combustion engines emit poisonousexhaustgases such as carbon monoxide. Inhalingtheseexhaustgases is hazardoustohealthand can leadtopoisoning.
Never leavethe enginerunning in anenclosed space without sufficientventi‐lation.
\nWARNINGRisk offirecausedbyflam‐mable material ontheexhaust system
Flammable materials brought inbyeither ani‐mals or environmental influences may igniteiftheycome into contact withhot parts ofthe engine orexhaust system.
Therefore,checkregularlythatthereare noflammable materials intheengine compartment or ontheexhaustsystem.
Requirements:RThe SmartKeyis located inthevehicle andthe SmartKeybattery is not discharged.
13 8Driving and parking

Make surethat marked space2is empty.
RemoveSmartKey1fromthekeyring.
Place SmartKey1in marked space2.Thevehicle willstart after a short time.
IfyouremoveSmartKey1from markedspace2the engine continuesrunning.Forfurthervehiclestarts however,SmartKey1must be located in marked space2duringthe entire journey.
Havethe SmartKey1checked at aqualifiedspecialistworkshop.
Ifthevehicle does notstart:
Place SmartKey1in marked space2andleaveitthere.
Depressthe brake pedal andstartthevehicleusingthestart/stop button.
You can also switchonthe power supplyorthe ignition withthestart/stop button.
Startingthevehicle viaRemoteOnline serv‐ices
Cooling or heatingthevehicle interior beforecommencingyour journey
This function is notavailable in all countries.
Ifyoustartthevehicle viayour smartphone,thepreviously selected air conditioning adjustmentis active.
Ensurethefollowing beforestartingthe engine:
RThe legalstipulations inthe area whereyourvehicle is parked allow enginestarting viasmartphone.
RIt is safetostart andrunthe engine whereyourvehicle is parked.
RThe fueltank is sufficientlyfilled.
RThestarter battery is sufficientlycharged.
You can also setthetemperature withyoursmartphone. Information on Mercedes meconnect andother services: http://www.mercedes.meThis function is notavailablefor all models.
Chargingthe batterybefore commencingyour journey
This function is notavailable in all countries.
RIfthevehicle battery is discharged,youreceivea message onyour smartphone.
RYou canthenstartthevehicle withthesmartphonetochargethe battery.
RThevehicle is automatically switched offafterten minutes.
Ensurethefollowing beforestartingthe engine:
RThe legalstipulations inthe area whereyourvehicle is parked allow enginestarting viasmartphone.
RIt is safetostart andrunthe engine whereyourvehicle is parked.
14 0Driving and parking

Ifthefollowing conditions are fulfilled,standbymode can be activated or deactivated usingthemultimedia system:
RThe engine is switched off.
RThe ignition is switched on.
Exceedingthevehicle's displayed non-opera‐tional time may cause inconvenience, i.e. it can‐not be guaranteedthatthestarter battery willreliablystartthe engine.
Thestarter battery must bechargedfirst inthefollowing situations:
RThevehicle's non-operational time must beextended.
RTheBattery Charge Insufficient for StandbyModemessageappears inthe multimediasystem display.
Standby mode is automatically deactivatedwhenthe ignition is switched on.
Activating/deactivatingstandby modeMultimedia system:
VehicleîVehicle Set-
tingsStandby Mode
This function is notavailablefor all models.
Activatesor deactivateSthe function.Whenyou activatethe function, a promptappears.
SelectYes.Standby mode is activated.
Driving and driving safety systems
Driving systems andyourresponsibility
Yourvehicle is equipped with driving systemswhich assistyou in driving, parking and maneu‐veringthevehicle. The driving systems are aidsand do notrelieveyou ofyourresponsibility per‐tainingtoroad traffic law.Pay attentiontothetraffic conditions at all times and intervenewhen necessary. Beaware ofthe limitationsregardingthe safe use ofthese systems.
Function oftheradar sensors
Some driving and driving safety systems useradar sensorstomonitorthe area in front of,behind or nexttothevehicle (depending onthevehicle's equipment).
Depending onthevehicle's equipment,theradarsensors are integrated behindthe bumpersand/or behindthe Mercedesstar.Keeptheseparts free of dirt, ice and slush (→page 360).The sensors must not be covered,forexamplebycycleracks,overhanging loads,stickers,foilorfoilstoprotect againststonechipping. Intheevent of damagetothe bumpers orradiator grill,orfollowing a collision impactingthe bumpers orradiator grill, havethe function oftheradar sen‐sorschecked at aqualified specialistworkshop.The driver assistance system may no longerworkproperly.
Driving and parking16 5

BAS supportsyour emergency braking situationwith additional brakeforce.
Ifyou depressthe brake pedalquickly,BAS isactivated:
RBAS automaticallybooststhe brake pres‐sure.
RBAS can shortenthe braking distance.
RABS preventsthe wheels from locking.
The brakes will function as usual onceyoureleasethe brake pedal.BAS is deactivated.
Function of ESP®(ElectronicStability Pro‐gram)
\nWARNINGRisk of skidding if ESP®ismalfunctioning
If ESP®is malfunctioning, ESP®cannot carryoutvehiclestabilization. In addition,otherdriving safety systems are switched off.
Drive on carefully.
HaveESP®checked at aqualified spe‐cialistworkshop.
\nWARNINGRisk of skidding if ESP®isdeactivated
Ifyou deactivate ESP®, ESP®cannot carryoutvehiclestabilization.
ESP®should onlybe deactivated inthefollowing situations.
Mercedes‑AMGvehicles:always observethenotes inthe Supplement. Otherwise,you mayfailtorecognize dangers.
ESP®can monitor and improvedrivingstabilityand traction inthefollowing situations, withinphysical limits:
RWhen pullingawayon awet or slipperyroad‐way.
RWhen braking.
RInstrong side winds whenyou are drivingfasterthan 50mph (80 km/h).
Ifthevehicle deviates fromthe direction desired
bythe driver, ESP®canstabilizethevehiclebyintervening inthefollowingways:
ROne or more wheels are braked.
RThe engine output is adapted accordingtothe situation.
ESP®is deactivated ifthe

Adjusting the instrument lighting
Turnbrightness control1up or down.The lighting ofthe Instrument Display and inthe control elements ofthevehicle interior isadjusted.
Menus and submenus
Functions onthe service menu ofthe on-board computer
On-board computer:
Service
Toselectthe function:swipe upwards ordownwards onthe left-handTouch Control.
Pressthe left-handTouch Control.
Functions ontheServicemenu:
RMessage memory (→page 427)
RTires:
-Restartthe tire pressure losswarningsystem (→page 392)
-Checkthe tire pressure withthe tire pres‐sure monitor (→page 390)
-Restartthe tire pressure monitor(→page 391)
RASSYST PLUS: calls upthe service due date(→page 347)
RVehicles with aWidescreen Cockpit:Cool-ant: coolanttemperature display
REngine Oil Level: engine oil level
Calling upthe Assistance Graphic
On-board computer:
Assistance
Vehicles withthe Instrument Display intheWidescreen Cockpit:whenyou havethe design settoProgressive,you can viewthe Assistance Graphic inthe left-hand areaofthe Instrument Display.
Thefollowing displaysareavailable onthe Assis‐tance Graphic menu:
RAssistance Graphic
RAttention level (→page 209)
Toswitch betweenthe displays:swipeupwards or downwards onthe left-handTouch Control.
224Instrument Display and on-board computer

Rfrequent operation in mountainousterrain oron poorroad surfaces
Rwhenthe engine is often leftidlingfor longperiods
Roperation in particularly dusty conditionsand/or if air-recirculation mode is frequentlyused
Inthese or similar operating conditions, havetheinterior airfilter, engine air cleaner, engine oiland oilfilteretc.changed more frequently. Thetires must bechecked more frequently ifthevehicle is operated under increased loads.Fur‐ther information can be obtained at aqualifiedspecialistworkshop.
Battery disconnection periods
The ASSYST PLUS service interval displaycan only calculatethe service due datewhenthe batteryis connected.
Notedownthe service due date displayed onthe instrument display before disconnectingthe battery (→page 347).
Engine compartment
Active hood (pedestrian protection)
Operation ofthe active hood (pedestrian pro‐tection)In certain accident situations,therisk of injurytopedestrians can bereducedbythe actuationofthe active hood. Therear area ofthe hood israisedbyapproximately 3 in (85 mm).
Forthe drivetotheworkshop,resetthe trig‐gered active hoodyourself. Afterthe active hoodhas been triggered, pedestrian protection maybe limited.
Aqualified specialistworkshop mustre-instatethe full functionality ofthe active hood.
The active hood is notavailable in all countries.
Resettingthe active hood
\nWARNINGRisk 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.
Withyour handflat, push down active hood1inthe area aroundthe hinges on bothsides (arrows).The hood must engage in position.
Ifthe active hood can beraised slightly attherear inthe area ofthe hinges,repeatthestep until it engages correctly.
348Maintenance and care

Engine oil
Checkingthe engine oil level usingthe oildipstick
\nWARNINGRisk 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.
Requirements:The engine must havean oil dipstick.If not,theengine oil level can bechecked only withthe on-board computer .
Depending onthe engine,the oil dipstick may beinstalled inthe engine compartment in differentlocations.
Thewaiting time beforecheckingthe oil levelwhenthe engine is at normal operatingtempera‐ture isfiveminutes.
Parkthevehicle on a level surface.
Pull oil dipstick1out and wipe off.
Slowly slide oil dipstick1intothe guidetubetothestop, and pull it out again afterapproximatelythree seconds.ROil level is correct: oil level is between2and3.
ROil leveltoo low: oil level is at3orbelow.
ROil leveltoo high: oil level is above2.
Ifthe oil level istoo low,add1.1 US qt(1 liter) of engine oil.
Ifthe engine oil level istoo high, havetheexcess engine oilremoved immediately at aqualified specialistworkshop.
Checkingthe engine oil level with an on-board computer
Requirements:The engine oil level is determined during driving.Determiningthe engine oil level cantakeupto30 minutes with a normal drivingstyle andevenlonger with an active drivingstyle.
In ordertoreceivearesult asquickly as possi‐ble:
Rwarmupthe engine.
Rparkthevehicle on a level surface.
Rleavethe enginerunning at idle speed.
Maintenance and care351

On-board computer:
Service Engine Oil Level
You will see one ofthefollowing messages inthe multifunction display:
Measuring Engine Oil Level...: measurementofthe oil level is notyet possible.Repeattherequest after a maximum of 30 minutes' driv‐ing.
Engine Oil Level OKandthe bar displayforindicatingthe oil level inthe multifunctiondisplay is green and is between "min" and"max":the oil level is correct.
Engine Oil Level Add 1.0 landthe bar displayfor indicatingthe oil level inthe multifunctiondisplay is orange and is below "min": add1.1 US qt (1 l) of engine oil.
Reduce Engine Oil Levelandthe bar displayfor indicatingthe oil level inthe multifunctiondisplay is orange and is above"max": drainofftheexcess engine oil. Consult aqualifiedspecialistworkshop.
For Engine Oil Level Switch Ignition On:switch onthe ignitiontocheckthe engine oillevel.
Engine Oil Level System Inoperative: sensordefective or not inserted. Consult aqualifiedspecialistworkshop.
Engine Oil Level System Currently Unavail.:closethe hood.
Adding engine oil
\nWARNINGRisk 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.
\nWARNINGRisk offireand injury fromengine oil
If engine oil comes into contact withhotcomponent parts inthe engine compart‐ment, it may ignite.
Make surethat no engine oil is spillednexttothefiller opening.
Allowthe enginetocool off andthor‐oughly cleanthe engine oil from compo‐nent parts beforestartingthevehicle.
NOTEEngine damagecausedbyanincorrect oilfilter, incorrect oil or addi‐tives
Do not use engine oils or oilfilterswhich do not correspondtothe specifi‐cationsexplicitly prescribedfortheservice intervals.
Do not alterthe engine oil or oilfilter inordertoachievelongerchange intervalsthan prescribed.
Do not use additives.
352Maintenance and care

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 351).
Checking coolant level
\nWARNINGRisk 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.
\nWARNINGRisk 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 care353