2018 MERCEDES-BENZ S-CLASS SEDAN Owner's Manual

Displaymessages
Possible causes/consequences and MSolutions
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he climate contro l system is malfunctioning.
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WARNING Risk of injury and accident due toan insuf ficient supply of fresh air
If th e climate control sy stem is malfunctioning, carbon dioxide le vels may inc rease in theve hicle interior.
Breathing in carbon dioxide may cause dizziness.
#Open the window toensure that there is a suf ficient supply of fresh ai r.
#Openthe window toensure that there is a suf ficient supply of fresh ai r.
#Visit a qualified specialist workshop immediatel y.
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he po wer assi stance of thesteering is malfunctioning. You may need touse more forc eto steer.
#Drive on carefull y.
#Visit a qualified specialist workshop.
Display messages and warning/indicator lamps 495

Displaymessages
Possible causes/consequences and MSolutions
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hesteering is malfunctioning. Steering capability is considerably impaired.
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WARNING Risk of accident if steering capability is impaired
If th esteering does not function as intended, theve hicle's operating saf etyis jeopardized.
#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.
#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.
#Consult a qualified specialist workshop.
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he po wer assi stance of thesteering is malfunctioning.
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WARNING Risk of an accident due toaltered steering characteristics
If th e po wer assi stance of thesteering fails partially or comple tely,yo uwill need touse more forc eto steer.
#If safe steering is possible, drive on carefully.
#Vi sit or consult a qualified specialist workshop immediatel y.
#If safesteering is possible, drive on carefully.
#Vi sit or consult a qualified specialist workshop immediatel y.
496
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 engine hood.
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*A t least one door is open.
#Close all doors.
Displ aymessage s andwarning/indicator lamps 497

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 .
498
Display messages and warning/indicator lamps

Lights
Display messagesPossible causes/consequences and MSolutions
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he cor responding light source is defective.
#Visit a qualified specialist workshop.
% LED light bulbs: the display message forth e cor responding lamp only appears when allthe light-emitting diodes
in the lamp ha vefailed.
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he active light function is malfunctioning.
#Visit a qualified specialist workshop.
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Displaymessages
Possible causes/consequences and MSolutions
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he light sensor is malfunctioning.
#Visit a qualified specialist workshop.
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ou are leaving theve hicle and the lights are still switched on.
#Tu rn the light switch totheà position.
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ou are driving without lo w-beam headlamps.
#Turn the light switch totheL orà position.
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daptive Highbeam Assist is malfunctioning.
#Visit a qualified specialist workshop.
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daptive Highbeam Assist is temp orarily una vailable.
The sy stem limitations ha vebeen reached (
→page 146).
#Drive on.
Once the cause of the problem is no longer present, the sy stem will be available again. The $GDSWLYH +LJKEHDP
$VVLVW 1RZ $YDLODEOH display message appears.
500
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'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.
Displaymessage s andwarning/indicator lamps 501

Instrument Display intheWi descreen Co ck‐
pit
Prog ressive setting (Widescreen Cockpit)
Ifyo u select the progressive display setting in
ve hicles with a Widescreen Cockpit, the position
of the indicator lamps in the Instrument Display
ch anges.
Wa rning and indicator lamps:
L Low beam (
→page
143)
T Pa
rking lights (
→page 143)
K High beam
(
→page14 4)
#! Tu
rn signal light (
→page 144)
R Re
ar fog light (
→page 143)
ü Seat belt is not
fastened
(
→page 510)
$ US
A: brakes (red) (
→page 503)
J Canada: brakes (red) (
→page 503)
! ABS malfunction (
→page 503)
÷ ESP
®(→page 503)
å ESP
®OFF (→page 503)
F USA: electric parking brake applied
(red) (
→page 503) !
Canada: electric parking brake
applied (red) (
→page 503)
! Electric parking brake (yellow
)
(
→page 503)
Ð St
eering assis tance malfunction
(
→pa ge 512)
# Electrical malfunction (
→page
513)
6 Re
stra int sy stem (
→page 503)
; Check Engine (
→page
513)
8 Fu
elreser vewith fuel filler cap loca‐
tion indicator (
→page 513)
? Coolan
tto o hot/cold (
→page 513)
· Dis
tance warning (
→page 511)
h Ti
re pressure monitoring sy stem
(
→page 517)
50 2
Displ aymessage s andwarning/indicator lamps