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

Displaymessages
Possible causes/consequences and MSolutions
Ð
Steering Malfunction Stop
Immediately See Opera-
tor's Manual*T
hesteering is malfunctioning. Steering capability is considerably impaired.
&
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.
Ð
Steering Malfunction
Increased Physical Effort
See Operator's Manual *T
he po wer assi stance of thesteering is malfunctioning.
&
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.
Displaymessage s andwarning/indicator lamps 439

Displaymessages
Possible causes/consequences and MSolutions
Active Hood Malfunction
See Operator's Manual *T
he active hood (pedestrian pr otection) is malfunctioning or inoperative af ter having already been triggered.
#Vi sit a qualified specialist workshop.
M
*T he hood is open.
&
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.
C
*A t least one door is open.
#Close all doors.
440
Displ aymessage s andwarning/indicator lamps

Displaymessages
Possible causes/consequences and MSolutions
N
*The trunk lid is open.
&
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.
Shift to 'P' or 'N' to Start
Engine *
You ha vetried tostart the engine in transmission position jori.
#Shift the transmission toposition jori.
To Engage Transmiss. Posi-
tion R First Depress the
Brake *
Yo u ha veattem ptedto shift the transmission out of position hand into transmission position k.
#Depressthe brake pedal.
#Switch the transmission toposition k.
_
Example:Front Left Seat
Backrest Not Locked *T
he seat backrest of the cor responding front seat is not engaged.
#Push the seat backrest back until it engages.
Display messages and warning/indicator lamps 44
1

Displaymessages
Possible causes/consequences and MSolutions
¥
Check Washer Fluid*T
hewasher fluid leve l in thewa sher fluid reser voir has dropped below the minimum.
#To p up thewa sher fluid .
Soft top
Displa ymessages
Possible causes/consequences and MSolutions
K
Decrease Speed*T
he soft top is open. If you dr ive at speeds greater than 37 mph (60 km/h), it is not possible toclose the soft top.
#Do not drive at speeds greater than 37 mph(6 0 km/h).
#Pull or press and hold the soft- top switch until the soft top is closed fully.
K
While stationary, apply the
brakes before operating
the soft top. *T
hevehicle is stationary and you try toopen or close the soft top.
#Depress the brake pedal.
#Push or pull the soft top switch again until the soft top is fully open or closed.
44 2
Displ aymessage s andwarning/indicator lamps

Displaymessages
Possible causes/consequences and MSolutions
K
Start Engine See Opera-
tor's Manual*T
he on-board electrical sy stem voltage is too lo w.
#Start the engine.
K
Convertible Top Operation
Possible to 37 mph *I
fyo udriv e at speeds of more than 37 mph(6 0 km/h) you cannot open or close the soft top.
#Do not drive at speeds greater than 37 mph(6 0 km/h).
#Fu lly open or close the soft top.
K
Convertible Top Lowering *T
he soft top is not fully opened or closed. The hydraulics are depressurizing.
#Fu lly open or close the soft top.
J
Trunk Partition Open *T
he trunk partition is open.
#Close the trunk partition.
Display messages and warning/indicator lamps 44
3

Displaymessages
Possible causes/consequences and MSolutions
A
Malfunction Service
Required*T
heroll bars are defective.
#Visit a qualified specialist workshop immediatel y.
K
Open/Close Convertible
Top Completely *T
he soft top is not loc ked. If youdr ive at speeds of more than 37 mph (60 km/h) you cannot open or close the soft
to p.
#Pull over and stop theve hicle safely as soon as possible, paying attention toroad and traf fic conditions.
#Push or pull and hold the soft- top switch until the soft top is fully open or closed.
Lights
Display messages
Possible causes/consequences and MSolutions
b
Example:Check Left Low
Beam *T
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.
444
Displaymessage s andwarning/indicator lamps

Displaymessages
Possible causes/consequences and MSolutions
b
Active Headlamps Inopera-
tive*T
he active headlamp s are defective.
#Visit a qualified specialist workshop.
b
Malfunction See Opera-
tor’s Manual *T
heexterior lighting is defective.
#Vi sit a qualified specialist workshop.
b
Auto Lamp Function Inoper-
ative *T
he light sensor is defective.
#Visit a qualified specialist workshop.
b
Switch Off Lights *Y
ou are leaving theve hicle and the lights are still switched on.
#Tu rn the light switch totheà position.
Display messages and warning/indicator lamps 44
5

Displaymessages
Possible causes/consequences and MSolutions
b
Switch On Headlamps*Y
ou are driving without low beam headlamps.
#Turn the light switch totheL orà position.
Adaptive Highbeam Assist
Inoperative *A
daptive Highbeam Assist is malfunctioning.
#Visit a qualified specialist workshop.
Adaptive Highbeam Assist
Currently Unavailable See
Operator's Manual *A
daptive Highbeam Assist is temp orarily una vailable.
The sy stem limitations ha vebeen reached (
→page 112).
#Drive on.
Once the cause of the problem is no longer present, the sy stem will be available again. The Adaptive Highbeam
Assist Now Available display message appears.
446
Displ aymessage s andwarning/indicator lamps