2019 MERCEDES-BENZ E CLASS engine coolant

RActive Distance AssistDISTRONIC(→page177)
NOTEEngine damageduetoexcessivelyhigh engine speeds
The engine will be damaged ifyou drive withthe engine intheoverrevvingrange.
Do not drive with the engine intheover‐revvingrange.
The fuel supply is interruptedtoprotecttheengine whenthered mark ontachometer3(overrevvingrange) isreached.
During normal operating conditions, coolanttemperature display4mayrisetotheredmark.
\nWARNINGDanger of burns when open‐ingthe hood
Ifyou openthe hood whenthe engine hasoverheated or during afireinthe enginecompartment,you could come into contactwith hotgases orother escaping operatingfluids.
Before openingthe hood, allowtheenginetocool down.
Intheevent of afireinthe engine com‐partment,keepthe hood closed andcallthefireservice.
Vehicles with a 48 V on-board electrical sys‐tem (EQ Boosttechnology)
1POWER showsthe electric drive support
2CHARGE showstherecuperation power ofthe electric motor

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

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

Parkthevehicle on a level surface.
Checkthe coolanttemperature display intheinstrument cluster.The coolanttemperature must be below158 °F (70 °C).
Slowly turn cap1counter-clockwisetorelieve overpressure.
Continue turning cap1counter-clockwiseandremoveit.
The coolant level is correct:
RIfthe engine is cold, uptomarker bar2.
RIfthe engine iswarm, upto0.6 in (1.5 cm)over marker bar2.
If necessary,add coolantthat has beenapprovedbyMercedes-Benz.RFurther information on coolant:(→page 423)
Addingwasherfluidtothe windshieldwasher system
\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.
\nWARNINGDanger of burns when open‐ingthe hood
Ifyou openthe hood whenthe engine hasoverheated or during afireinthe enginecompartment,you could come into contactwith hotgases orother escaping operatingfluids.
Before openingthe hood, allowtheenginetocool down.
Intheevent of afireinthe engine com‐partment,keepthe hood closed andcallthefireservice.
\nWARNING‑ Risk offireand injury fromwindshieldwasher concentrate
Windshieldwasher concentrate is highlyflammable. It could ignite if it comes intocontact withhot engine component parts ortheexhaust system.
Make surethat no windshieldwasherconcentrate spills out nexttothefilleropening.
354Maintenance and care

Rat aqualified specialistworkshop
Coolant
Notes on coolantObservethe notes on operatingfluids(→page419).
\nWARNING‑ Risk offireand injury fromantifreeze
If antifreeze comes into contact withhotcomponent parts inthe engine compart‐ment, it may ignite.
Allowthe enginetocool down beforeadding antifreeze.
Makesurethat no antifreeze spills outnexttothefiller opening.
Thoroughly clean off any antifreezefrom component parts beforestartingthevehicle.
NOTEDamagecausedbyincorrect cool‐ant
Only add coolantthat has been pre‐mixed withtherequired antifreeze pro‐tection.
Information on coolant isavailable atthefol‐lowing locations:
RInthe Mercedes-Benz SpecificationforOperating Fluids310.1
-Athttp://bevo.mercedes-benz.com
-Inthe Mercedes-Benz BeVo app
RAtaqualified specialistworkshop
NOTEOverheating at high outsidetem‐peratures
If an inappropriate coolant is used,theengine cooling system is not sufficiently pro‐tected againstoverheating and corrosion athigh outsidetemperatures.
Always use coolant approvedbyMercedes-Benz.
Observethe instructions intheMercedes-Benz Specificationsfor Oper‐ating Fluids310.1.
Havethe coolantregularlyreplaced at aqualifiedspecialistworkshop.
The proportion of corrosion inhibitor/antifreezeconcentrate inthe engine cooling system shouldbe:
Ra minimum of 50% (antifreeze protectiondowntoapproximately -35 °F (-37 °C))
Ra maximum of 55% (antifreeze protectiondownto-49 °F (-45 °C))
Coolant capacity
Capacity
ModelCapacity
All models12.7 US qt(12.0 liters)
Technical data423

Engine
Display messagesPossible causes/consequences andPPSolutions
=
See Operator's Manual
*The battery is not beingcharged.
NOTEPossible engine damage ifyou continue driving
Do not continue driving under any circumstances.
Consult aqualified specialistworkshop.
Pullover andstopthevehicle safely and switch offthe engine, paying attentiontoroad and traffic conditions.
Consult aqualified specialistworkshop.
Check Coolant Level SeeOperator's Manual
*The coolant level istoo low.
NOTEEngine damageduetoinsufficient coolant
Avoid long journeyswith insufficient coolant.
Add coolant (→page 353).
=
*The batterychargelevel istoo low.
Pullover andstopthevehicle safely as soon as possible, paying attentiontoroad and traffic conditions. Do notcontinue driving under any circumstances.
Leavethe enginerunning.
Display messages andwarning/indicator lamps451

Display messagesPossible causes/consequences andPPSolutions
Avoiding high loads onthe engine, drivetothe nearestqualified specialistworkshop. In doing so, ensurethatthe coolanttemperature displayremains belowthered marking.

Warning/indicator lampPossible causes/consequences andPPSolutions
Observethe messages onthe multifunction display.
Ifthe coolanttemperature display is atthe lower end ofthetemperature scale:
Consult aqualified specialistworkshop.
or
Exitthevehicle andkeep a safe distance from it untilthe engine has cooled down.
Checkthe coolant level (→page 353).
Make surethatthe air supplytotheradiator is not obstructed.
Avoiding high loads onthe engine, drivetothe nearestqualified specialistworkshop. In doing so, ensurethatthecoolanttemperature displayremains belowthered area.
Tires
Warning/indicator lampPossible causes/consequences andPPSolutions
w
Tirepressure monitoringsystemwarning lamp lightsup
Theyellow tire pressure monitoring systemwarning lamp (pressure loss/malfunction) is lit.
The tire pressure monitoring system has detected tire pressure loss in at least one ofthe tires.
484Display messages andwarning/indicator lamps