ECU MERCEDES-BENZ E CLASS 2019 Repair Manual

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

The systemchecksthe tire pressure andthe tiretemperature ofthe tires installed onthevehiclebymeans of a tire pressuresensor.
New tire pressure sensors, e.g. in winter tires,are automaticallytaught-in duringthefirst jour‐neytheyare used.
The tire pressure andthe tiretemperatureappear inthe multifunction display(→page 390).
Ifthere is a substantial pressure loss or ifthetiretemperature isexcessive,you will bewarnedinthefollowingways:
Rvia display messages (→page 460)
Rviathewwarning lamp inthe instrumentcluster (→page 484)
The tire pressuremonitoring system is only anaid. It isthe driver'sresponsibilitytosetthe tirepressuretotherecommended cold tire pressuresuitableforthe operating situation. Setthe tirepressurefor cold tires using a tire pressuregauge.Notethatthe correct tire pressureforthecurrent operating situation mustfirst betaught-intothe tire pressure monitoring system.
In most cases,the tire pressure monitoring sys‐tem will automaticallyupdatethe newreferencevalues afteryou havechangedthe tire pressure.You can, however,also updatethereferenceval‐uesbyrestartingthe tire pressure monitoringsystem manually (→page 391).
System limitations
The system may be impaired or may not functioninthefollowing situations:
RIfthe tire pressure is set incorrectly
RIfthere is a sudden pressure loss caused,forexample,byaforeign object penetratingthetire
RIfthere is a malfunction causedbyanotherradio signal source
Make suretoobservethefollowing furtherrela‐ted subject:
RNotes on tire pressure (→page 386)
Checkingthe tire pressure withthe tire pres‐sure monitoring system
Requirements:RThe ignition is switched on.
On-board computer:
Service Tires
One ofthefollowing displaysappears:
RCurrent tire pressure and tiretemperature ofthe individual wheels:
RTire pressure will be displayed after driving afew minutes
RTire Pressure Monitor Active:theteach-inprocess ofthe system is notyet complete.The tire pressures are already being moni‐tored.
Comparethe tire pressure withtherecom‐mended tire pressureforthe current operat‐
390Wheels 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

Height when opened
Model11Heightwhenopened
E45068.5 in(1741 mm)
E 450 4MATIC68.9 in(1749 mm)
Vehicle dimensions
E450
Vehicle length190.0 in(4826 mm)
Vehicle width including out‐side mirrors80.9 in(2055 mm)
Wheelbase113.1 in(2873mm)
E450
Vehicle height56.3 in(1431 mm)
Turningradius37.3ft(11.4 m)
Vehicle dimensions
E 450 4MATIC
Vehicle length190.0 in(4826 mm)
Vehicle width including out‐side mirrors80.9 in(2055 mm)
Wheelbase113.1 in(2873mm)
Vehicle height56.7 in(1439 mm)
Turningradius38.1ft(11.6 m)
Weights and loads
Please notethatforthe specifiedvehicle data:
Ritems of optional equipment increasethecurbweight andreducethe payload.
Roof load
All models
Maximumroof load165 lb (75kg)
426Technical data

Display messagesPossible causes/consequences andPPSolutions
Visit aqualified specialistworkshop immediately.
u
Left Side Curtain AirbagMalfunction ServiceRequired(Example)
*The corresponding window curtain airbag is malfunctioning (→page 32).
\nWARNINGRisk of injuryorfatal injury duetomalfunctions inthe window airbag
Ifthe window airbag is malfunctioning, it might be triggered unintentionally or might not be triggered at all intheevent of an accident with high deceleration.
Havethe window airbagchecked andrepaired immediately at aqualified specialistworkshop.
Visit aqualified specialistworkshop immediately.
Front Passenger AirbagEnabled See Operator'sManual
*The front passenger airbag and knee airbags are enabled duringthe journey:
Reven when achild, a small adult or an objectweighing lessthanthe systemweightthreshold is located onthefront passenger seat
Reven whenthe front passenger seat is not occupied
The system may detect objects orforcesthat are addingtotheweight appliedtothe seat.
\nWARNINGRisk of injuryorfatal injury when using achildrestraint system whilethe front passenger air bagis enabled
Ifyou secure achild in achildrestraint system onthe front passenger seat andthe front passenger air bag isenabled,the front passenger air bag can deploy intheevent of an accident.
Thechild could bestruckbythe air bag.
Display messages andwarning/indicator lamps437

Cargo tie-downrings...............................107
Carpet (Care)............................................ 361
Change of address.....................................21
Change ofownership................................21
Changing a wheelPreparation .........................................409Raisingthevehicle ...............................410
Changinggears........................................15 2Manually ..............................................152
Changing hub caps................................. 409
Character entryOnthetouchpad .................................256Usingthe controller ............................. 256
ChargingBattery (vehicle) ...................................374Mobile phone (wireless) .......................11 4
Chassis level (AIRBODYCONTROL)Setting .................................................192
Child safety lockActivating/deactivating (multimediasystem) ............................................... 262Rear side windows................................. 60
Child seatAttaching (notes) ................................... 52Basic instructions ..................................47front-passenger seat (notes) ................. 58LATCH-type (ISOFIX) (installing) ............ 53Notes onrisks and dangers ...................48Securing onthe front passenger seat ....59Securing ontherear seat ......................57TopTether ..............................................55
ChildrenAvoiding dangers inthevehicle .............48Basic instructions ..................................47Special seat beltretractor ..................... 53
Chock....................................................... 408Storage location ..................................408
Chocksee Chock
CigarettelighterFront center console ............................112
Cleaningsee Care
Climate control........................................1313-zone automatic climatecontrolpanel ....................................................131
Activating/deactivating .......................132Activating/deactivatingthe A/Cfunction (control panel) .......................132Activating/deactivatingthe A/Cfunction (multimedia system) ..............13 2Activating/deactivatingthe synchro‐nization function (control panel) ..........13 3Activating/deactivatingthe synchro‐nization function (multimedia sys‐tem) .....................................................13 3Air distribution settings .......................133Air-recirculation mode .........................13 4Automatic control ................................13 3Climatestyle function ..........................13 3Control panelfor dual-zone auto‐matic climatecontrol ...........................131Defrostingthe windshield ....................131Filling capacityforPAG oil ...................425Front airvents .....................................13 5Glovebox airvent ................................13 6Inserting/removingtheflacon (fra‐grance system) ....................................13 4Ionization .............................................13 4Note.....................................................131Rear airvents ......................................13 6Rear operating unit ..............................131
Index493

Setting options .................................... 322Terms of use ........................................322
IonizationActivating/deactivating (multimediasystem) ................................................13 4
iPhone®
see Apple CarPlay™see Mercedes-Benz Link
J
JackStorage location ..................................408
Jump-start connection............................374General notes ......................................372
K
KEYLESS-GOLockingthevehicle ................................67Problem .................................................68Unlocking setting .................................. 63Unlockingthevehicle ............................67
Kickdown.................................................153Using ...................................................15 3
Knee airbag................................................ 39
L
Labeling (tires)seeTirelabeling
Lampsee Interior lighting
Lamps (Instrument Display)seeWarning/indicator lamps
Lane detection (automatic)seeActive LaneKeeping Assist
LaneKeeping AssistseeActive LaneKeeping Assist
Language.................................................262Notes .................................................. 262Setting .................................................263
LATCH-type (ISOFIX)child seat secur‐ing systemInstalling ................................................ 53
Level control systemsee AIRBODYCONTROL
Light switchOverview ..............................................11 7
Lightingsee Interior lightingsee Lights
Lights........................................................11 7Adaptive Highbeam Assist ...................120Adjustingthe instrument lighting ......... 224Automatic driving lights .......................11 8Combination switch.............................11 8Cornering light function .......................12 0Hazardwarning lights ...........................119High beam ...........................................11 8High-beamflasher ................................11 8Light switch ..........................................117Low-beam headlamps ..........................11 7Parking lights .......................................117Rearfog lamp .......................................11 7Responsibilityfor lighting systems .......117Settingtheexterior lighting switch-off delay time .......................................121Settingthe surround lighting ...............121Standing lights .....................................117Turnsignals ..........................................11 8
LimitedWarrantyVehicle .................................................. 26
Index505

LiveTraffic InformationDisplaying subscription information .... 287Displayingthe traffic map ...................288Displaying traffic incidents .................. 289Extending a subscription ..................... 287Issuing hazard alerts ........................... 289
Load index (tires).................................... 400
Load-bearing capacity (tires)................. 400
Loading.....................................................107Bag hook .............................................107Cargo tie-downrings ...........................107Definitions ........................................... 402Notes ...................................................102Roof carrier .........................................109Stowage space underthe trunkfloor ...109
Loading guidelines..................................102
Loading information table...................... 393
LoadsSecuring ..............................................102
Locator lightingsee Surround lighting
Locking/unlockingActivating/deactivatingthe auto‐matic lockingfeature .............................69Emergencykey ...................................... 70KEYLESS-GO ..........................................67Unlocking and opening doors fromthe inside ...............................................67
Low-beam headlampsSwitching on/off ..................................11 7
Lubricant additivesseeAdditives
LuggageLuggage net .........................................108Securing ..............................................102
Lumbar supportseeLumbar support (4-way)
Lumbar support (4-way)...........................92
M
MAGIC VISION CONTROLWindshield wipers...............................12 5
MaintenanceMenu (on-boardcomputer) .................. 224
Vehicle ...................................................21
Maintenancesee ASSYST PLUS
MalfunctionRestraint system ................................... 32
Malfunction messagesee Display message
Map.......................................... 288, 289, 290Avoiding an area ..................................292Avoiding an area (overview) .................292Changing an area ................................ 293Deleting an area .................................. 293Displayingthe compass ....................... 294Displayingthe mapversion .................292Displayingthe next intersectingstreet................................................... 292Displayingthe satellite map ................295Displayingthe traffic map ...................288Displayingweather information ...........295Map data ............................................. 294Moving ................................................. 291Overview ............................................. 289Selecting POI symbols ......................... 291Selectingtext information ................... 291
506Index

SuspensionAdjustingthechassis level (AIRBODYCONTROL) .................................192Dampingcharacteristics ......................19 0DYNAMICBODYCONTROL ..................19 0
Suspensionsee AIRBODYCONTROL
Switch-off delay timeExterior ................................................121Interior .................................................12 3
Switchingthe surround sound on/off
Burmester®surround sound system ... 345
Synchronization functionActivating/deactivating (multimediasystem) ................................................13 3Switching on/off (control panel) .........13 3
System settingsActivating/deactivating PIN protec‐tion ...................................................... 264Reset function (multimedia system) ....267Settingthe distance unit ..................... 263Settingthe time and date automati‐cally ..................................................... 258Settingthe time zone .......................... 258
Settingthe time/dateformat .............. 258Switching transmission ofthevehicleposition on/off .................................... 259
System settings
see Bluetooth®
see Data import/exportsee Languagesee Software updateseeWi-Fi
T
Tailpipes (Care)........................................ 360
Tank contentFuel ..................................................... 421Reserve(fuel) ...................................... 421
Technical dataInformation ..........................................41 5Tirepressure monitor .......................... 391Vehicle identification plate ...................417
Telephone........................................ 229, 297Activating functions during a call ........ 302Call andringtonevolume .....................302Calls with several participants .............302
Connecting a mobile phone (NearField Communication (NFC)) ................ 301Connecting a mobile phone (Pass‐key) .....................................................298Connecting a mobile phone (SecureSimplePairing) .................................... 298De-authorizing a mobile phone ............ 300Disconnecting a mobile phone ............ 300Importing contacts .............................. 304Importing contacts (overview) .............304Incoming call during anexisting call .... 303Information .......................................... 298Interchanging mobile phones .............. 300Menu (on-board computer) .................. 229Mobile phonevoicerecognition .......... 302Notes .................................................. 295Operating modes ................................. 298Reception and transmissionvolume .... 301Switching mobile phones (Near FieldCommunication (NFC)) ........................ 301Telephone menuoverview ...................297Telephone operation ............................ 302Using Near Field Communication(NFC) ...................................................301Voice commands (Voice Control Sys‐tem) .....................................................24 0
Index517