engine MERCEDES-BENZ E-CLASS COUPE 2018 Manual Online

Displaymessages
Possible causes/consequences and MSolutions
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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 160).
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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 .
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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 248 °F (120 °C).
410
Displ aymessage s andwarning/indicator lamps

Displaymessages
Possible causes/consequences and MSolutions
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he coolant is too hot.
#Pull over and stop theve hicle safely and switch off the engine, paying attention toroad and traf fic conditions.
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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 248 °F (120 °C).
Display message s andwarning/indicator lamps 41
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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.
#
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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 driving 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.
41 2
Displ aymessage s andwarning/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 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.
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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 312).
No tes on engine oil (
→page 378).
Display message s andwarning/indicator lamps 41
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Displaymessages
Possible causes/consequences and MSolutions
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he SmartK eyis cur rently und etected.
#Change the location of the SmartK eyintheve hicle.
#Ifth e SmartK eyisstill not de tected, start the engine with the SmartK eyinthestow age compartment .
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he SmartK eycannot be de tected and may no longer be in theve hicle.
The SmartK eyis no longer in theve hicle and youswit choff the engine:Ryo u can no longe rst art the engine
Ryo u cannot centrally lock theve hicle
#Ensure that the SmartK eyis in theve hicle.
If th e SmartK eydetection function has a malfunction due toast ro ng radio signal source:
#Pull over and stop theve hicle safely as soon as possible, paying attention toroad and traf fic conditions.
#Place the SmartK eyinthestow age compartment forst arting the engine with the SmartK ey.
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warning tone also sounds. This message reminds youto take your SmartK eywith you when you lea vetheve hicle.
Display messages and warning/indicator lamps 41
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Displaymessages
Possible causes/consequences and MSolutions
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he SmartK eydetection function is malfunctioning.
#Change the location of the SmartK eyintheve hicle.
#Start theve hicle with the SmartK eyinthestow age compartment .
Vehicle
Display messages
Possible causes/consequences and MSolutions
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Yo u ha veattem ptedto shift the transmission out of position jand into ano ther transmission position.
#Depress the brake pedal.
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Yo u ha veattem ptedto shift the transmission out of position jori into ano ther transmission position.
#Depress the brake pedal.
#St art the engine.
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The driver&#39;s door is not fully closed and the transmission is in position k,iorh.
#Shift the transmission toposition jwhen you park theve hicle.
420
Display messages and warning/indicator lamps

Displaymessages
Possible causes/consequences and MSolutions
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The transmission is malfunctioning. The transmission shifts toposition iautomaticall y.
#Pullover and stop theve hicle safely as soon as possible, paying attention toroad and traf fic conditions.
#Switch the transmission toposition j.
#Consult a qualified specialist workshop.
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he transmission is malfunctioning. Reversege ar can no longe r be engaged.
#Visit a qualified specialist workshop.
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he transmission has overheated. Pulling away can be temp orarily impaired or not possible.
#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.
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he auxiliary batteryforth e transmission is no longer being charge d.
#Visit a qualified specialist workshop.
#Un tilthen, manually set the transmission toposition jbefore you switch offthe engine.
#Before leaving theve hicle, apply the electric parking brake.
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peration of the climate control sy stem is temp orarily restricted. Air flow and fresh air supply are set toautomatic
mode.
#Ha ve the climate control sy stem checked at a qualified specialist workshop.
422
Display messages and warning/indicator lamps

Displaymessages
Possible causes/consequences and MSolutions
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he active hood (pedestrian pr otection) is malfunctioning or inoperative af ter having already been triggered.
#Vi sit a qualified specialist workshop.
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*T he engine hood is open.
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WARNING Risk of accident if the engine hood is unlatched while driving
An unloc ked engine hood may open up when theve hicle is in motion and block your vie w.
#Never unlatch the engine hood while driving.
#Before every trip, ensure that the engine hood is latched.
#Pull over and stop theve hicle safely as soon as possible.
#Close the hood.
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*A t least one door is open.
#Close all doors.
Displ aymessage s andwarning/indicator lamps 425

Displaymessages
Possible causes/consequences and MSolutions
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*The trunk lid is open.
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WARNING Risk ofexhaust gas poisoning
Combustion engines emit poisonous exhaust gases such as carbon monoxide. Exhaust gases can enter the
ve hicle interior if the trunk lid is open when the engine is running, especially if theve hicle is in motion.
#Alw ays switch off the engine before opening the trunk lid.
#Ne ver drive with the trunk lid open.
#Close the trunk lid.
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he cor responding seat backrest of there ar bench seat is not engaged.
#Foldthe cor responding seat backrest back until it engages.
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hewasher fluid leve l in thewa sher fluid reser voir has dropped below the minimum.
#Ad dwa sher fluid .
426
Display messages and warning/indicator lamps

Displaymessages
Possible causes/consequences and MSolutions
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he camera view is restricted. Possible causes are:
RDirt on the windshield in the camera&#39;s field of vision
RHeavy rain, snow or fog
Driving sy stems and driving saf etysy stems may be malfunctioning or temp orarily una vailable.
Once the cause of the problem is no longer present, driving sy stems and driving saf etysy stems are available again.
If th e display message does not disappear:
#Pull over and stop theve hicle safely as soon as possible, paying attention toroad and traf fic conditions.
#Clean the windshield.
Wa rning and indicator lamps
Overview of warning and indicator lamps
Some sy stems per form a self-test when the igni‐
tion is switched on. Some warning and indicator
lamps may briefly light up or flash. This behavior
is non-critical. These warning and indicator
lamps only indicate a malfunction if they light up
or flash af terth e engine is star ted or during a
journe y. Instrument Display (standard)
Display messages and
warning/indicator lamps 429