brake light MERCEDES-BENZ S-CLASS CABRIOLET 2018 Owner's Manual

1Steering wheel gearshift paddle →
139
2 Combination switch →
109
3 DIRECT SELECT le ver →
137
4 PASSENGER AIRB AGindicator lamps →
45,
45
5 Display (multimedia sy stem) →
233
6 Start/ Stop button →
129
7 Climat e control sy stems →
121
8 Glovebox →
96
9 Stow age compartment →
95
A Cup holder →
100
B Hazard warning lights →
110
C Extends there ar seat head restra ints →
85
D Parking Assist PARKTRONI C →
184
E Control elements forth e multimedia sy stem →
234
F Active Parking Assist →
192
G Sets theve hicle le vel →
176H
DYNA MIC SELECT switch →
136
I ECO start/ stop function →
135
J Control panel forth e multimedia sy stem →
209
K Adjusts thesteering wheel →
90
L Control panel for:
on-board computer →
209
Operates cruise contro l →
160
Operates Active Dis tance Assist DISTRONIC →
163
M Unloc ksthe hood →
328
N Elect ric park ing brake →
147
O Light switch →
108
P Control panel for:
Ac tive Steering Assist →
169
Ac tive Lane Keeping Assist →
206
Night View Assist →
201
Head-up Display →
218,
21 8
At aglance – Cockpit 7

1Speedom eter →
208
2 AIR BODY CONTROL malfunctioning →
454
3 #! Turn signal light →
109
4 Multifunction display →
211
5 Tach ome ter →
208
6 å ESP
®OFF →
447
÷ ESP
®→
447
7 K High beam →
109
L Low beam →
108
T Parking lights →
108
8 ? Coolant too hot/cold →
456
9 Coolant temp erature gauge →
208
A · Distance warning →
454
B Ð Steering assis tance malfunction →
455
C # Electrical malfunction →
456
D Brakes (red) →
447
$ USA only
J Canada only
E ü Seat belt is not fastened →
454
F Fuel le vel display
G 8 Fuelreser vewith fuel filler flap location
indicator →
456,
456
H R Rear fog light →
109
I 6 Restra int sy stem →
34
J % Indicator lamp has no function
K ; Check Engine →
456
L Elect ric park ing brake applied (red) →
447
F USA only
! Canada only
M h Tire pressure monitoring sy stem →
460
N ! ABS malfunction →
447
O ! Electric pa rking brake (yellow) →
447
At aglance – Warning and indicator lamps 11

Ingeneral, this information documents thest ate
of a component part, a module, a sy stem or the
sur roundings such as:
Roperating statuses of sy stem components
(e.g. fluid leve ls, battery status, tire pressure)
Rstatus messages concerning theve hicle and
its individual components (e.g. number of
wheel revo lutions/speed, decele ration, lat‐
eral acceleration, display of thefast ened seat
belts)
Rmalfunctions or defects in impor tant sy stem
components (e.g. lights, brakes)
Rinformation on vehicle damage events
Rsystem reactions in special driving situations
(e.g. airbag deployment, inter vention of sta‐
bility control sy stems)
Rambient conditions (e.g. temp erature, rain
sensor)
In addition toprov iding the actual control unit
function, this data assists the manufacturer in
de tecting and rectifying malfunctions and opti‐
mizing vehicle functions. The majority of this
data is temp orary and is only processed in the ve
hicle itself. Only a small portion of the data is
st ored in theev ent or malfunction memor y.
When service workis done on your vehicle, the
te ch nical da tafrom theve hicle can be read out
by service network staff (e.g. workshops, manu‐
fa cturer) or third parties (e.g. breakdown serv‐
ices). Services include repair services, mainte‐
nance processes, warranty events a
nd
quality
assurance measures, forex ample. The read out
is per form ed via the legally prescribed port for
th e diagnostics connection in theve hicle. The
re spective service network locations or third
parties collect, process and use the data. They
document tech nical statuses of theve hicle,
assist in finding malfunctions and impr oving
qu ality and are transmitted tothe manufacturer,
if necessar y.Fu rthermore, the manufacturer is
subject toproduct liability. Forth is, the manu‐
fa cturer requirestech nical da tafrom vehicles.
Malfunction memories in theve hicle can be
re set bya service outlet as part of repair or
maintenance work.
They can enter data into theve hicle's comfort
and inf otainment functions themselves as part
of the selected equipment. These include:
Rmultimedia data such as music,
films or pho‐
to sfo r playba ckin an integrated multimedia
sy stem
Raddress book data for use in connection with
an integrated hands-free sy stem or an inte‐
grated navigation sy stem
Rentered navigation destinations
Rdata about the use of Internet services
This data can be sa ved locally in theve hicle or it
is located on a device which you ha veconnected
to theve hicle (e.g. smartphone, USB flash drive
or MP3 pla yer). If this data is stored in theve hi‐
cle, you c
an dele
teit at any time. This data can
only be transmitte dto third parties upon your
re qu est with particular rega rd tothe scope of
use of online services according toyour selected
settings.
Yo u can store or change con venience settings/
individualization in theve hicle at any time.
Depending on the equipment, this includes, for
ex ample:
Rseat and steering wheel position settings
General no tes 29

RVehicles with sliding sunroof: Closingthe
sliding sunroof.
RVe hicles with memory function: Moving
th e front passenger seat toa more favo rable
seat position.
RVe hicles with multicontour seat: Increas‐
ing the air pressure in the seat side bols ters
of the seat backrest.
RPRE-SAFE®Sound: pr ovided that the multi‐
media sy stem is switched on, generates a
brief noise signal tostimulate the innate pro‐
te ctive mechanism of a person's heari ng.
* NO
TEDama gecaused byobjects in the
fo ot we ll or behind the seat
The automatic adjustment of the seat posi‐
tion may result in damage tothe seat and/or
th e object.
#St ow objects in a suitable place.
Reversing the PRE- SAFE®system measures
If an accident did not occur, the pre-em ptive
measures that we retake n are reve rsed.
Yo uwill need toper form certain settings your‐
self.
#If th e seat belt pre-tensioning is not reduced,
mo vethe seat backrest back slightl y.
The locking mechanism releases.
Fu nction of PRE-SAFE®PLUS (anticipatory
occupant pr otection plus)
PRE- SAFE®PLUS can de tect cer tain impacts,
particular lyan imminent rear impact, and take
pre-em ptive measures toprotect theve hicle
occupants. These measures cannot necessarily
pr eve nt an imminent impact.
PRE-SAFE
®PLUS can implement thefo llowing
measures independently of each other:
RTightening the seat belts on the driver's seat
and front passenger seat.
RInc reasing brake pressure when theve hicle
is stationar y.This brake application is can‐ celed automatically when
theve hicle pulls
aw ay.
If an accident did not occur, the pre-em ptive
measures that we retake n are reve rsed.
Sy stem limitations
The sy stem will not initiate any action in thefo l‐
lowing situations:
Rwhen backing up
The sy stem will not initiate any braking applica‐
tion in thefo llowing situations:
Rwhilst driving
or
Rwhen entering or exiting a parking space
while using Active Parking Assist
48
Occupant saf ety

Children in theve hicle
Note s onthe safe transportation of children
&
WARNING Risk of accident and injury
due tochildren left unatte nded inthe
ve hicle
If yo u lea vechildren unatte nded intheve hi‐
cle, they may be able toset theve hicle in
motion, forex ample by:
RRe leasing the parking brake.
RShifting the automatic transmission out
of park position j.
RStarting the engine.
In addition, they may operate vehicle equip‐
ment and become trapped.
#Ne ver lea vechildren unatte nded inthe
ve hicle.
#When leaving theve hicle, alw aysta ke
th e SmartK eywith you and lock the
ve hicle.
&
WARNING Risk offata l injury due to
ex posure toextreme heat or cold in the
ve hicle
If people – particularly children – are
ex posed toextreme heat or cold over an
ex tended pe riod of time, there is a risk of
injury or evenfa ta l injur y.
#Never lea veanyone – pa rticularly chil‐
dren – unatte nded intheve hicle.
&
WARNING Risk of burn s whenthech ild
seat is exposed todirect sunlight
If th ech ild restra int sy stem is exposed to
direct sunlight or heat, parts could heat up.
Children could suf fer burns from these parts,
particularly on me tallic parts of thech ild
re stra int sy stem.
#Alw ays make sure that thech ild
re stra int sy stem is not exposed to
direct sunlight.
#Pr otect it with a blank et,fo rex ample.
#Ifth ech ild restra int sy stem has been
ex posed todirect sunlight, allow it to
cool before securi ng achild into it.
#Ne ver lea vechildren unatte nded inthe
ve hicle.
The use of seat belts and child restra int sy stems
is requ ired bylaw in:
RAll 50 states
RThe U.S. territories
RThe District of Columbia
RAll Canadian pr ovinces
All child restra int sy stems must meet thefo llow‐
ing standards:
RU. S. Federal Mo torVe hicle Saf etySt andards
21 3 and 225
RCanadian Mo torVe hicle Saf etySt andards
21 3 and 210.2
Yo u can obtain fur ther information about the
cor rect child restra int sy stem from any author‐
ized Mercedes-Benz Center.
Occupant saf ety 49

#Therefore,check regularly that there
are no flammable materials in the
engine compartment or on theex haust
sy stem.
Re quirements:RThe SmartK eyis located in theve hicle and
th e SmartK eybattery is not dischar ged.
#To switch on the po wer supp ly:press but‐
to n1 (USA) or 2(Canada) once.
Yo u can activate the windshield wipers, for
ex ample.
The po wer supp lyis switched off again if thefo l‐
lowing conditions are me t:
RYou open the driver's door.
RYo upr ess butto n1 (USA) or 2(Canada)
twice.
#To switch on the ignition: press button 1
(USA) or 2(Canada) twice.
The indicator lamps in the instrument clus ter
light up.
The ignition is switched off again if one of the
fo llowing conditions is me t:
RYou do not start theve hicle within
15 minutes.
The transmission is in position j.
or
The electric parking brake is applied.
RYo upr ess butto n1 (USA) or 2(Canada)
once.
St arting theve hicle
Starting theve hicle with thest art/s top but‐
to n
Requ irements:
RThe SmartK eyis located in theve hicle and
th e SmartK eybattery is not dischar ged.
#Shift the transmission toposition jori.
#Depress the brake pedal and press button
1 (USA) or 2(Canada) once.
#Ifth eve hicle does not star t:switch off non-
essential consumers and press button 1
(USA) or 2(Canada) once.
#Ifth eve hicle still does not start and the
Place the Key in the Marked Space See
Operator's Manual display message also
appears in the multifunction display: start
th eve hicle in emer gency operation mode.
Yo u can switchoff the engine while driving by
pressing button 1(USA) or 2(Canada) for
about thre e seconds. Be sure toobser vethe
saf etyno tes under "Driving tips".
Driving and parking 12
9

RThe panic alarm is not activated.
RThe hazardwarning lights are switched off.
RThe hood is closed.
RThe doors are closed and loc ked.
RThe windo wsand sliding sunro of are closed.
#Start theve hicle using the smartphone:RAf tereve ryvehicle start, the engine runs for
te n minu tes.
RYo u can car ryout a maximum of two consec‐
utive starting attem pts. The vehicle must be
st ar ted once with the SmartK eybefore trying
to start theve hicle again with the smart‐
phone.
RYo u can stop theve hicle again at any time.
RFu rther information can be found inthe
smartphone app.
Securing the engine against starting before
car rying out maintenance or repair work:
#Switch on the hazard warning lights.
or
#Un lock the doors. or
#Open a side window or
the sliding sunroof.
Breaking-in no tes
Mercedes-AMG vehicles: observeth e no tes in
th e Supplement. Otherwise, you may failto rec‐
ognize dangers.
To preser vethe engine during thefirs t
1, 000 miles (1,500 km):
Rdrive at varying road speeds and engine
speeds.
Rdrive theve hicle in drive program A
or ;.
Rchange gear before theta ch ome ter needle is
Ô ofthewa yto there d area of theta ch ome‐
te r.
Rdo not shift down a gear manually in order to
brake.
Ravo idoverstra ining theve hicle, e.g. driving at
full thro ttle.
Rdo not depress the accelera tor pedal past
th e pressure point (kickdown).
Ronly increase the engine speed gradually and
accelerate theve hicle tofull speed af ter
1, 000 miles (1,500 km).
This also applies when the engine or parts of the
driv etra in ha vebeen replaced.
Please also obser vethefo llowing breaking-in
no tes:
Rin cer tain driving and driving saf etysy stems,
th e sensor sy stem adjusts automatically
while a cer tain dis tance is driven af terth e
ve hicle has been delivered or af terre pairs.
Fu ll sy stem ef fectiveness is not achie ved
unt ilth e end of this teach-in process.
Rbrakepads, brake discs and tires that are
either new or ha vebeen replaced only ach‐
ie ve opt
imum braking ef fect and grip af ter
se veral hundred kilom eters of driving. Com‐
pensate forth ere duced braking ef fect by
applying greater forc eto the brake pedal.
Driving and parking 13
1

Non-combusted fuel may get into the cata‐
lytic con verter.
#Only depress the accelera tor pedal
slightl y.
#Have the cause rectified immediately at
a qu alified specialist workshop.
Limited braking ef fect on salt-treate dro ads:
Rdue tosalt build-up on the brake discs and
brakepads, the braking dis tance can increase
conside rably or result in braking only on one
side.
Rmaintain a much greater safe dis tance tothe
ve hicle in front.
To preve nt salt build-up:
Rbrake occasionally while paying attention to
th e tra ffic conditions.
Rcarefully depress the brake pedal at the end
of the journey and when starting the next
journe y.
ECOstart/s top function
Opera tion of the ECO start/s top function
Mercedes -AMG vehicles: observeth e no tes in
th e Supplement. Otherwise, you may not recog‐
nize dangers.
The engine is au tomatical lyswitched off if the
fo llowing conditions are me t:
Rifyo ubr ake theve hicle toast andstill in
transmission position hori.
Rif all vehicle conditions for an au tomatic
engine stop are met.
The è symbol appears in the multifunction
display when theve hicle is stationar y.
The engine is restar ted automatically if:
Ryo ure lease the brake pedal in transmission
position hwhen the HOLD function is not
active.
Ryo u shift from transmission position j.
Ryou enga getransmission position hork.
Ryou depress the accelerator pedal.
Ryo uch ange theve hicle le vel.
Ran automatic engine start is necessar y.
If th e engine was switched off bythe ECO start/
st op function and you lea vetheve hicle, a warn‐
ing tone sounds. The Vehicle Operational Switch
the Ignition Off Before Exiting displaymessage
also appears in the multifunction displa y.Ifyo u
do not switch off the ignition, the ignition is
automatically switched off af ter one minute.
13 4
Driving and pa rking

Overview of driving systems and driving
saf ety sy stems
In this section, youwill find information about
th efo llowing driving sy stems and driving saf ety
sy stems:
R360° Camera (→page 187)
RABS ( Anti-lo ckBra king Sys tem)
(→page 151)
RAc tive Dis tance Assist DISTRONIC
(→pa ge 162)
RAIR BODY CONTROL (→page 174)
RAc tive Brake Assi st(→page 155)
RAc tive Lane Keeping Assist (→page 205)
RATTENTION ASSIST (→page 195)
RBA S (Bra keAssist System) (→page 151)
REBD ( Electronic Brakefo rc eDistribution)
(→page 155)
RESP®(E lectronic Sta bility Program)
(→page 152)
RHill Start Assist (→page 173)
RHOLD function (→page 173)
RST EER CONTROL (→page 155)
RAc tive Steering Assist (→page 167)
RAc tive Parking Assist (→page 190)
RParking Assist PARKTRONI C (→page18 2)
RRe ar view camera (→page 185)
(→pag e18 7)
RCruise control (→page 159) (→pag e16 0)
RBlind Spot Assist andActive Blind Spot Assi st
(→page 202) (→page 203) (→page 202)
RTr af fic Sign Assist (→page197)
Fu nctions of ABS (Anti-lock Brake Sy stem)
ABS regulates the brake pressure in critical driv‐
ing situations:
RDuring braking, e.g. at maximum full-s top
braking or insuf ficient traction of the tires,
th e wheels are pr evented from blocking.
RVehicle steerability while braking is ensured.
If ABS inter venes when braking, youwill feel a
pulsing in the brake pedal. The pulsating brake
pedal can be an indication of hazardous road conditions and can ser
veas a reminder totake
ex tra care while driving.
Sy stem limitations
RABS is active from speeds of appr ox. 5 mph
(8 km/h).
RABS may be impaired or may not function if a
malfunction has occur red and theye l‐
low ! ABSwarning lamp lights up contin‐
uously in the instrument clus ter af terth e
engine is star ted.
Fu nction of BAS (Brake Assist Sy stem)
&
WARNING Risk of an accident caused by
a malfunction in BAS (Brake Assist Sys‐
te m)
If BA S is malfunctioning, the braking dis tance
in an eme rgency braking situation is
increased.
#Depress the brake pedal with full forc e
in emer gency braking situations. ABS
pr eve nts the wheels from locking.
Driving and parking 15
1

BAS suppo rts yo ur eme rgency braking situation
with additional brake forc e.
If yo udepr essthe brake pedal quickl y,BA S is
acti vated:
RBA S au tomatical lyboosts the brake pres‐
sure.
RBA S can short enthe braking dis tance.
RABS pr events the wheels from locking.
The brakes will function as usual once you
re lease the brake pedal. BAS is deactivated.
Functions of ESP®(Electronic Stability Pro‐
gr am)
&
WARNING Risk of skidding if ESP®is
malfunctioning
If ESP
®is malfunctioning, ESP®cannot car ry
out vehicle stabilization. In addition, other
driving saf etysy stems are switched off.
#Drive on carefull y.
#Have ESP®checked at a qualified spe‐
cialist workshop.
&
WARNING Risk of skidding if ESP®is
deactivated
If yo u deactivate ESP
®, ESP®cannot car ry
out vehicle stabilization.
#ESP®should only be deactivated in the
fo llowing situations.
Mercedes‑AMG vehicles: observeth e no tes in
th e Supplement. Otherwise, you may failto rec‐
ognize dangers.
ESP
®can monito r and improvedriving stability
and traction in thefo llowing situations, within
ph ysical limits:
RWhen pulling away on wet or slippe ryroads.
RWhen braking.
RIn stro ng side winds when you are driving
fast erthan 50 mph (80 km/h). If
th eve hicle deviates from the direction desired
by the driver, ESP
®can stabilize theve hicle by
inter vening in thefo llowing ways:
ROne or more wheels are braked.
RThe engine output is adap ted according to
th e situation.
ESP
®is deactivated if theå ESP®OFFwarn‐
ing lamp lights up continuously in the instrument
clus ter:
RDriving stability will no longe r be improved.
RCrosswind Assist is no longer active.
RThe drive wheels could spin.
RETS/4ETS traction control is still active.
% When ESP
®is deactivated, you are still assis‐
te dby ESP®when braking.
ESP
®is inter vening if the÷ ESP®warning
lamp flashes in the instrument clus ter:
RDo not deacti vate ESP®.
ROnly depress the accelera tor pedal as far as
is necessar y.
152
Driving and pa rking