MERCEDES-BENZ S-CLASS SEDAN 2018 Owner's Manual
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Displaymessages
Possible causes/consequences and MSolutions
$ F W L Y H 3 D U N L Q J $ V V L V W
0 D Q H X Y H U L Q J $ V V L V W D Q F H
5 H V W U L F W H G 6 H H 2 S H U D W R U
V
0 D Q X D O *A
ctive Parking Assist and Parking Assist PARKTRONI Carete mp orarily una vailable. The ambient conditions are out‐
side the sy stem limitations (
→page 226). Be wareofthe entire vehicle sur roundings.
#As soon as the ambient conditions are within the sy stem limitations, the sy stem will become available again.
7 U D I I L F 6 L J Q $ V V L V W , Q R S H U D
W L Y H *T
raffic Sign Assist is malfunctioning.
#Vi sit a qualified specialist workshop.
7 U D I I L F 6 L J Q $ V V L V W & X U
U H Q W O \ 8 Q D Y D L O D E O H 6 H H
2 S H U D W R U
V 0 D Q X D O *T
raffic Sign Assist is temp orarily una vailable.
#Drive on.
Once the cause of the problem is no longer present, the sy stem will be available again.
7 U D I I L F 6 L J Q $ V V L V W & D P H U D
9 L H Z 5 H V W U L F W H G 6 H H 2 S H U D
W R U
V 0 D Q X D O *T
he camera view is restricted. Possible causes are:
RDirt on the windshield in the camera'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.
Display messages and warning/indicator lamps 47
9
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Displaymessages
Possible causes/consequences and MSolutions
ë
2 I I*T
he HOLD function is deactivated because theve hicle is skidding or a condition for activation is not met.
#Re activate the HOLD function later or check the activation conditions forth e HOLD function .
$ F W L Y H ' L V W D Q F H $ V V L V W 1 R Z
$ Y D L O D E O H *A
ctive Dis tance Assist DISTRONIC is operational again and can be acti vated (
→page 200).
$ F W L Y H ' L V W D Q F H $ V V L V W & X U
U H Q W O \ 8 Q D Y D L O D E O H 6 H H
2 S H U D W R U
V 0 D Q X D O *A
ctive Dis tance Assist istemp orarily una vailable.
The ambient conditions are outside the sy stem limitations(
→page 199).
#Drive on.
As soon as the ambient conditions are within the sy stem limitations, the sy stem will become available again.
$ F W L Y H ' L V W D Q F H $ V V L V W , Q R S
H U D W L Y H *A
ctive Dis tance Assist is malfunctioning.
Other driving sy stems and driving saf etysy stems may also malfunction.
#Vi sit a qualified specialist workshop.
$ F W L Y H 6 W H H U L Q J $ V V L V W & X U
U H Q W O \ 8 Q D Y D L O D E O H 6 H H
2 S H U D W R U
V 0 D Q X D O *A
ctive Steering Assist is temp orarily una vailable.
The ambient conditions are outside the sy stem limitations (
→page 204).
#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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Display messages and warning/indicator lamps
Page 483 of 562
Displaymessages
Possible causes/consequences and MSolutions
$ F W L Y H 6 W H H U L Q J $ V V L V W , Q R S
H U D W L Y H *A
ctive Steering Assist is malfunctioning. Active Dis tance Assist remains available.
#Visit a qualified specialist workshop.
¯ P S K *C
ruise control cannot be activated as not all activation conditions are fulfilled.#Obser vethe activation conditions for cruise control .
& U X L V H & R Q W U R O & D Q F H O H G *C
ruise control has been deactivated.
If th ere is an additional warning tone, cruise control has been switched off au tomatical ly(
→page 196).
& U X L V H & R Q W U R O , Q R S H U D W L Y H *C
ruise control is malfunctioning.
#Visit a qualified specialist workshop.
/ R Z H U L Q J *T
hevehicle le vel may be lo weredfo rth efo llowing reasons:
Ryo u ha veselected a dif fere nt drive program.
Ryo u ha veexc eeded a critical speed.
Ryou ha vechanged theve hicle le velby pressing a button.
0 D [ 6 S H H G P S K *T
hevehicle has been set totranspo rtleve l.Tr ansport le vel is not a permissible driving le vel. Only suitable for trans‐
porting theve hicle.#Do not drive fasterthan 22 mph (35 km/h).
Display messages and warning/indicator lamps 481
Page 484 of 562
Engine
Display messagesPossible causes/consequences and MSolutions
& K H F N & R R O D Q W / H Y H O 6 H H
2 S H U D W R U
V 0 D Q X D O *T
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 .
?
& R R O D Q W 7 R R + R W 6 W R S 9 H K L
F O H 7 X U Q ( Q J L Q H 2 I I *T
he coolant is too hot.
#Pull over and stop theve hicle safely and switch off the engine, paying attention toroad and traf fic conditions.
&
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).
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Display message s andwarning/indicator lamps
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Displaymessages
Possible causes/consequences and MSolutions
?
*Thefan 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).
#
6 H H 2 S H U D W R U
V 0 D Q X D O *T
he battery is not being charge d.
* NO
TEPossible engine damage if you continue driving#Do not continue dr iving 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.
Display messages and warning/indicator lamps 483
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Displaymessages
Possible causes/consequences and MSolutions
#
6 W R S 9 H K L F O H 6 H H 2 S H U D
W R U
V 0 D Q X D O*T
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.
#
6 W D U W ( Q J L Q H 6 H H 2 S H U D
W R U
V 0 D Q X D O *T
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.
#
6 W R S 9 H K L F O H / H D Y H ( Q J L Q H
5 X Q Q L Q J *T
he battery charge leve l is too low and must be charge d.
#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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Display messages and warning/indicator lamps
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Displaymessages
Possible causes/consequences and MSolutions
4
& K H F N ( Q J L Q H 2 L O $ W 1 H [ W
5 H I X H O L Q J*T
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 382).
No tes on engine oil (
→page 449).
¯
' ( ) 6 \ V W H P ) D X O W ( Q J L Q H
6 W D U W 1 R W 3 R V V L E O H *T
he DEF sy stem is malfunctioning. You can no longe rst art the engine.
#Consult a qualified specialist workshop immediatel y.
¯
' ( ) 6 \ V W H P ) D X O W 6 H H
2 S H U D W R U
V 0 D Q X D O *T
he DEF sy stem is malfunctioning.
#Vi sit a qualified specialist workshop immediatel y.
Displaymessage s andwarning/indicator lamps 485
Page 488 of 562
Displaymessages
Possible causes/consequences and MSolutions
¯
' ( ) 6 \ V W H P ) D X O W 3 H U I
5 H G X F H G L Q ; ; ; P O 6 H H
2 S H U D W R U
V 0 D Q X D O*T
he DEF sy stem is malfunctioning. Performance is limited abo vethe speed displa yed.
#Visit a qualified specialist workshop immediatel y.
Ø
5 H I L O O ' ( ) 3 H U I 5 H G X F H G L Q
P L O H V 6 H H 2 S H U D W R U
V
0 D Q X D O *T
he low DEF le vel leads tolimited per form ance af ter driving the dis tance displ ayed.
#Re fill DEF immediately .
% The message disappears af ter driving at a speed abo ve10 mph(1 5 km/h) for app roxima tely one minute.
8
* D V & D S / R R V H *T
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.
8
) X H O / H Y H O / R Z *T
he fuel le vel has dropped into there ser verange.
#Re fuel.
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Display message s andwarning/indicator lamps
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Tire s
Displa ymessages
Possible causes/consequences and MSolutions
h
3 O H D V H & R U U H F W 7 L U H 3 U H V
V X U H*T
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 .
h
& K H F N 7 L U H V *T
he tire pressure in one or more tires has dropped significantl y.The wheel position is displa yed.
&
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 487
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Displaymessages
Possible causes/consequences and MSolutions
h
: D U Q L Q J 7 L U H 0 D O I X Q F W L R Q*T
he tire pressure in one or more tires has dropped suddenly. The wheel position is displa yed.
&
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 flat tires (→page 393).
#St op theve hicle, paying attention toroad and traf fic conditions.
#Check the tires.
7 L U H 3 U H V V 0 R Q L W R U & X U
U H Q W O \ 8 Q D Y D L O D E O H *N
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.
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Display messages and warning/indicator lamps