MERCEDES-BENZ E-CLASS WAGON 2018 Owner's Manual

Displaymessages
Possible causes/consequences and MSolutions
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ctive Dis tance Assist DISTRONIC is temp orarily una vailable.
The ambient conditions are outside the sy stem limitations (
→page 177).
#Drive on.
As soon as the ambient conditions are within the sy stem limitations, the sy stem will become available again.
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ctive Dis tance Assist DISTRONIC is malfunctioning.
Other driving sy stems and driving saf etysy stems may also malfunction.
#Vi sit a qualified specialist workshop.
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ctive Steering Assist is temp orarily una vailable.
The ambient conditions are outside the sy stem limitations (
→page 183).
#Drive on.
As soon as the ambient conditions are within the sy stem limitations, the sy stem will become available again.
#If necessar y,clean the windshield in the camera's field of vision.
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ctive Steering Assist is malfunctioning. Active Dis tance Assist DISTRONIC remains available.
#Visit a qualified specialist workshop.
Display messages and warning/indicator lamps 429

Displaymessages
Possible causes/consequences and MSolutions
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ruise control cannot be activated as not all activation conditions are fulfilled.#Obser vethe activation conditions for cruise control .
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ruise control has been deactivated.
If th ere is an additional warning tone, cruise control has been deacti vated automatically (
→page 175).
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ruise control is malfunctioning.
#Visit a qualified specialist workshop.
Engine
Display messages
Possible causes/consequences and MSolutions
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he coolant le vel is too lo w.
* NO
TEEngine damage duetoinsuf ficient coolant
#Av oid long journe yswith insuf ficient coolant.
#Ad d coolant .
430
Display messages and warning/indicator lamps

Displaymessages
Possible causes/consequences and MSolutions
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he coolant is too hot.
#St op theve hicle immediately, paying attention toroad and traf fic conditions, and switch off the engine.
&
WARNING Danger of burn s when opening the hood
If yo u open the hood when the engine has overheated or during a fire inthe engine compartment, you could
come into contact with hot gases or other escaping operating fluids.
#Before opening the hood, allow the engine tocool down.
#Intheeve nt of a fire inthe engine compartment, keep the hood closed and call thefire service.
#Wa it until the engine has cooled down.
#Make sure that the air supply tothera diator is not obstructed.
#Av oiding high loads on the engine, drive on tothe nearest qualified specialist workshop. In doing so, ensure that
th e coolant temp erature display remains below there d area.
Display messages and warning/indicator lamps 431

Displaymessages
Possible causes/consequences and MSolutions
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he battery is not being charge d.
* NO
TEPossible engine damage if you continue dr iving#Do not continue driving under any circum stances.
#Consult a qualified specialist workshop.
#Pull over and stop theve hicle safely and switch off the engine, paying attention toroad and traf fic conditions.
#Consult a qualified specialist workshop.
#
6HH 2SHUDWRU
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he battery is not being charge d.
* NO
TEPossible engine damage if you continue dr iving#Do not continue driving under any circum stances.
#Consult a qualified specialist workshop.
#St op theve hicle immediately, paying attention toroad and traf fic conditions, and switch off the engine.
#Consult a qualified specialist workshop.
432
Display messages and warning/indicator lamps

Displaymessages
Possible causes/consequences and MSolutions
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he engine is off and the battery charge leve l is too lo w.
#Switch off electrical consumers that are not required.
#Leavethe engine running for a few minutes, or drive for a longer dis tance.
The battery charge s.
#
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he battery is no longer being charge d and the battery charge leve l is too lo w.
* NO
TEPossible engine damage if you continue dr iving#Do not continue dr iving under any circum stances.
#Consult a qualified specialist workshop.
#Pull over and stop theve hicle safely as soon as possible, paying attention toroad and traf fic conditions. Do not
continue driving under any circums tances.
#Switch off the engine.
#Consult a qualified specialist workshop.
#
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he battery charge leve l is too lo w.
#Pull over and stop theve hicle safely as soon as possible, paying attention toroad and traf fic conditions. Do not
continue driving under any circums tances.
#St art the engine.
#Wa it until the display message disappears before pulling away.
Displ aymessage s andwarning/indicator lamps 433

Displaymessages
Possible causes/consequences and MSolutions
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he engine oil le vel has dropped tothe minimum le vel.
* NO
TEEngine damage causedbydriving with insuf ficient engine oil#Av oid long journe yswith insuf ficient engine oil.
#Check the engine oil le vel when next refueling.
Ad d engine oil (
→page 330).
No tes on engine oil (
→page 396).
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he fuel le vel has dropped into there ser verange.
#Re fuel.
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*T hefan mo tor is defective.
#Av oiding high loads on the engine, drive on tothe nearest qualified specialist workshop. In doing so, ensure that
th e coolant temp erature display remains below there d marking.
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here has been pressure loss in the fuel sy stem. The fuel filler cap is not closed cor rectly or the fuel sy stem is
leaking.
#Close the fuel filler cap.
#If th e fuel filler cap was already proper lyclosed: consult a qualified specialist workshop.
434
Display messages and warning/indicator lamps

Tire s
Displa ymessages
Possible causes/consequences and MSolutions
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he tire pressure is too low in at least one of the tires, or the tire pressure dif fere nce between the wheels is too
great.
#Check the tire pressure and add air, if necessar y.
#Whenthe tire pressure is cor rect, restart the tire pressure monitoring sy stem .
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he tire pressure in one or more tires has dropped significantl y.The wheel position is displa yed.
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WARNING Risk of an accident due toinsuf ficient tire pressure
Ti re pressures that are too low pose thefo llowing hazards:
RThe tires may bur st, especially as the load and vehicle speed increase.
RThe tires may wearexc essively and/or une venly, which may greatly impair tire traction.
RThe driving characteristics, as well as steering and braking, may be greatly impaired.
Yo u could then lose control of theve hicle.
#Obser vethere commended tire pressure.
#Ad just the tire pressure if necessar y.
#Stop theve hicle, paying attention toroad and traf fic conditions.
#Check the tire pressure and the tires.
Display messages and warning/indicator lamps 435

Displaymessages
Possible causes/consequences and MSolutions
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he tire pressure in one or more tires has dropped suddenly. The wheel position is displa yed.
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WARNING Risk of an accident from driving wi thaflat tire
Flat tires are dangerous in thefo llowing ways:
RThe tires can overheat and cause a fire .
RThe driving characteristics, as well as steering and braking, may be greatly impaired.
Yo u could then lose control of theve hicle.
#Do not drive with a flat tire.
#Observ eth e no tes on flat tires.
No tes on a flat tire (→page 340).
#St op theve hicle, paying attention toroad and traf fic conditions.
#Check the tires.
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o signals can be receive d from the tire pressure sensor due tostro ngradio signal source inter fere nce. The tire
pressure monito ring sy stem is temp orarily una vailable.
#Drive on.
The tire pressure monitoring sy stem restarts automatically as soon as the cause has been rectified.
436
Display messages and warning/indicator lamps

Displaymessages
Possible causes/consequences and MSolutions
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here is no signal from the tire pressure sensor of one or more wheels. The pressure of the af fected tire is not
displ ayed.
#Ha ve the defective tire pressure sensor replaced at a qualified specialist workshop.
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he wheels ins talled do not ha vesuitable tire pressure sensors. The tire pressure monitoring sy stem is deactivated.
#Ins tall wheels with suitable tire pressure sensors.
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he tire pressure monitoring sy stem is defective.
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WARNING Thereis arisk of an accident if the tire pressure monitoring sy stem is malfunctioning
If th e tire pressure monitoring sy stem is malfunctioning, it is not able toissue a warning if there is pressure loss
in one or more of the tires.
Und erinflated tires ma y,forex ample, impair the driving, steering and braking characteristics.
#Ha ve the tire pressure monitoring sy stem checked at a qualified specialist workshop.
#Visit a qualified specialist workshop.
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t least one tire is overheated. The af fected tires are displ ayed in red. At temp eratures close tothe limit value, the
tires are displa yed in yello w.
#Drive more slow ly.
Displ aymessage s andwarning/indicator lamps 437

Displaymessages
Possible causes/consequences and MSolutions
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t least one tire is overheated.
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WARNING Risk of an accident from driving wi thove rheated tires
Overheated tires may bur st, particularly at high speeds.
#Re duce speed so that the tires cool down.
#Re duce speed so that the tires cool down.
SmartK ey
Displaymessages
Possible causes/consequences and MSolutions
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he SmartK eyneeds tobe replaced.
#Visit a qualified specialist workshop.
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he SmartK eybattery is dischar ged.
#Re place the battery .
438
Display messages and warning/indicator lamps