cruise control 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

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

RIfth e sensors malfunction due to otherradar
source inter fere nce, forex ample strongradar
re flections in parking garage s.
RIf a loss of tire pressure or a defective tire
has been de tected and displ ayed.
The sy stem may not react cor rectly:
RIn complex traffic situations whe reobjects
cannot always be clearly identified.
RTo pedestrians or vehicles if they mo ve
qu ickly into the sensor de tection range.
RTo pedestrians who are hidden by other
objects.
RIf th e typical outline of a pedestrian cannot
be distinguished from the bac kground.
RIfa pedestrian isnot recognized as such , e.g.
due tospecial clo thing or other objects.
ROn bends with a tight radius.
Setting Active Brake Assi st
Multimedia system:
,Vehicle.k Assistance.Active
Brake Assist
Ve hicles without Driving Assistance Pack‐
age: The settings can be made af terst arting the
ve hicle.
Ve hicles with Driving Assistance Package:
The settings can be made when the ignition is
switched on.
% It is recommended that you alw ays lea ve
Ac tive Brake Assi stactivated.
Select one of thefo llowing settings:
#Early :yo ur selection isretained when the
ve hicle is next star ted.
#Medium :yo ur selection isretained when the
ve hicle is next star ted.
#Late: your selection isretained when the
ve hicle is next star ted.
#Off:
Ve hicles without Driving Assistance Pack‐
age: The dis tance warning function and the
autonomous braking function are deactiva‐
ted. When theve hicle is next star ted, the
middle setting is auto matically selected.
Ve hicles with Driving Assistance Pack‐
age: The dis tance warning function and the
autonomous braking function are deactiva‐
te d. Evasive Steering Assist is una vailable.
When the ignition is next star ted, the middle
setting is selected automatically and Evasive
St eering Assist is available.
% When Active Brake Assi stis deactivated, the
æ symbol appears inthe assis tance
graphic in the multifunction displa y.
Speed control cruise control
Function of cruise control
Cruise cont rol accelerates and brakes theve hi‐
cle automatically in order tomaintain a pr evi‐
ously stored speed.
If yo u accelerate toove rtake, forex ample, the
st ored speed is not dele ted. If youre mo veyour
fo ot from the accelerator pedal af terove rtaking,
cruise control will resume speed regulation back
to thestored speed.
Driving and parking 15
9

Cruise cont rol is operated using the cor respond‐
ing steering wheel buttons. You can store any
ro ad speed abo ve15 mp h (20 km/h) up tothe
maximum speed.
If yo ufa ilto adapt your drivin gst yle, cruise con‐
trol can neither reduce therisk of an accident
nor override the la wsof ph ysics. It cannot take
into account road, weather or traf fic conditions.
Cruise control is only an aid. You are responsible
fo rth e dis tance totheve hicle in front, forve hi‐
cle speed, for braking in good time and forst ay ‐
ing in lane.
Displa ysinthe multifunction display
The status of cruise control and thestored
speed are shown in the multifunction displa y.
1Cruise cont rol is selecte d
2Speed is sa ved, cruise control is deactivated
3Speed is sa ved, cruise control is activated
% The segments between thestored speed and
th e end of the segment display light up in
th e speedome ter.
Sy stem limitations
Cruise control may be unable tomaintain the
st ored speed on uphill gradients. The stored
speed is resumed when the gradient evens out.
Change into a lo werge ar in good time on long
and steep downhill gradients. Take particular
no te ofthis when driving a laden vehicle. By doing so,
youwill make use of the braking ef fect
of the engine. This relie vesth e load on the brake
sy stem and pr events the brakes from overheat‐
ing and wearing tooqu ickl y.
Do not use cruise control in thefo llowing situa‐
tions:
RIn traf fic situations whi chrequ ire frequent
ch anges of speed, e.g. in heavy traf fic, on
winding roads.
ROn slippery roads. Accelerating can cause
th e drive wheels tolose traction and the
ve hicle could then skid.
RIfyo u are driving when visibility is poor.
Ope rating cruise control
&
WARNING Risk of accident due tostored
speed
If yo u call up thestored speed and this is
lo we rth an your cur rent speed, theve hicle
decelerates.
#Ta ke into account the tra ffic situation
before calling up thestored speed.
16 0
Driving and pa rking

Requirements:RESP®must be activated, but not inter vening.
RThe driving speed is at least 15mp h
(20 km/h).
RThe transmission is in position h.
#Toactivate cruise control: pressrock er
switch 1up.
#Toactivate cruise control: pressrock er
switch 2up (SET/+) or down (SET/-).
#Remo veyour foot from the accelerator pedal.
The cur rent speed is stored and maintained
by theve hicle.
#To increase/reduce speed: pressrock er
switch 2up/down tothe pressure point.
The stored speed is increased or reduced by
1 mp h(1 km/h).
or
#Press rocker switch 2beyond the pressure
point.
The stored speed is increased or reduced by
5 mp h(1 0 km/h).
or
#Ac celerate theve hicle tothe desired speed.
#Press rocker switch 2up.
If cruise control is activated and Traf fic Sign
Assist has detected a speed restriction sign wi th
a maximum permissible speed and this is dis‐
pla yed in the instrument clus ter:
#To adopt the de tected speed: pressrocker
switch 3up.
The maximum permissible speed shown by
th e traf fic sign is stored and theve hicle
maintains this speed.
#To deactivate cruise control:
press rocker switch 3(CNCL) down.
When cruise control is deactivated:
RRo cker switch 2(SET/+) or (SET/-) sa ves
th e cur rently driven speed and theve hicle
maintains this speed.
RRo cker switch 3(RES) calls up the speed
last stored and theve hicle maintains this
speed.
#To deactivate cruise control: pressrock er
switch 1down.
% Ifyo u brake, deactivate ESP
®or if ESP®
inter venes, cruise control is deacti vated.
When youswit choff theve hicle, the last
speed stored is cleared.
Driving and parking 16
1

Instrument Displayoverview
&
WARNING Risk of accident due toan
instrument display malfunction
If th e Instrument Display has failed or mal‐
functioned, you may not recognize function
re strictions applying tosaf etyre leva nt sys‐
te ms.
The operating saf etyof your vehicle may be
impaired.
#Drive on carefull y.
#Have theve hicle checked immediately
at a qualified specialist workshop.
Mercedes‑AMG vehicles: observeth e no tes in
th e Supplement. Otherwise, you may failto rec‐
ognize dangers.
If th e operating saf etyof your vehicle is
impaired, park theve hicle safely as soon as pos‐
sible. Contact a qualified specialist workshop. Instrument display
1Speedome
ter
2Multifunction display
3Ta ch ome ter
4Coolant temp erature gage
5Fu el le vel and fuel filler flap location indica‐
to r
% This display is an example. Inst ead oftach ‐
ome ter3 other displa ysare also possible.
The segments in speedome ter1 indica tethe
sy stem status forth efo llowing:
RCruise control (→page 159) (→page 160)
RAc tive Dis tance Assist DISTRONIC
(→pa ge 162)
Ve hicles with Traf fic Sign Assis t:De tected
instructions and traf fic signs appear in the
speedome ter (
→page 197).
* NO
TEEngine damage duetoexc essively
high engine speeds
The engine will be damaged if you drive with
th e engine in theov errevving range.
#Do not drive wi th the engine in theove r‐
re vving range.
In tach ome ter3 theove rrev ving range is
shown in red. When theove rrev ving range is
re ached, the fuel supply is inter rupted toprotect
th e engine.
During normal operating conditions, coolant
te mp erature display 4may rise to248 °F
(120 °C).
208 Instrument Display and on-board computer

&WARNING Danger of burn s when open‐
ing the hood
If yo u open the hood when the engine has
ove rheated or during a fire inthe engine
compartment, you could come into contact
wit h hot gases or other escaping operating
fl uids.
#Before opening the hood, allow the
engine tocool down.
#Intheeve nt of a fire inthe engine com‐
partment, keep the hood closed and
call thefire service.
Overview of the butto ns onthest eering
wheel
1¤ Back button, on-board computer
2Touch Control, on-board co mputer
3Control panel for cruise control or Active
Dis tance Assist DISTRONIC
4Control panel for multimedia sy stem:
£ LINGU ATRO NIC or voice control sys‐
te m
ß Displaysfa vo rite s
VO L: control knob, adjusts thevo lume or
switches the sound off 8
6 Makes/accepts a call ~
Rejects/ends a call
5ò Calls up the home screen
6To uch Control
7% Back butto n
Operating the on-boa rdcompu ter
&
WARNING Risk of dist raction from infor‐
mation sy stems and communications
equipment
If yo u operate information and communica‐
tion equipment integ rated in theve hicle
when driving, youwill be distracted from the
traf fic situation. This could also cause youto
lose control of theve hicle.
#Only operate this equipment when the
traf fic situation permits.
#If yo u cannot be sure of this, stop the
ve hicle whilst paying attention toroad
and traf fic conditions and ope rate the
equipment with theve hicle stationar y.
Instrument Display and on-board computer 209

Settingthe design
On-board computer
,Designs
% This function is only available forve hicles
with a Widescreen Cockpit.
The following designs can be selecte d:
RSport
RClassic
RProgressive
#Toselect a design: swipe upwards or down‐
wa rds on the left-hand Touch Control.
#Press the left-hand Touch Control.
The Instru ment Display is shown in the selec‐
te d design.
Head-up Display
Fu nction of the Head-up Display
Mercedes‑AMG vehicles: observeth e no tes in
th e Supplement. Otherwise, you may not recog‐
nize dangers. The Head-up Display projects information from
th
e navigation sy stem, the driver assis tance sys‐
te m and some warning messages abo vethe
cockpit into the driver's field of vision.
Display elements
1Na vigation message s
2Current speed
3De tected instructions and traf fic signs
4Set speed in the driver assis tance sy stem
(e.g. cruise control)
When youre ceive a call, the6 Incoming Call
message appears in the Head-up Displa y.Sy
stem limitations
The visibility is influenced bythefo llowing condi‐
tions:
RSeat position
RThe positioning of the display image
RLight conditions
RWe tro ads
RObjects on the display co ver
RPo larization in sunglasses
% Inextreme sunlight, sections of the display
may be faded. This can be cor rected by
switching the Head-up Display off and on
again.
21 8
Instrument Display and on-board computer

Displaymessages
Possible causes/consequences and MSolutions
Active Steering Assist Inop-
erative *A
ctive Steering Assist is malfunctioning. Active Dis tance Assist remains available.
#Visit a qualified specialist workshop.
¯- - - mph *C
ruise control cannot be activated as not all activation conditions are fulfilled.#Obser vethe activation conditions for cruise control .
Cruise Control Canceled *C
ruise control has been deactivated.
If th ere is an additional warning tone, cruise control has been switched off au tomatical ly(
→page 159)
(→page 160).
Cruise Control Inoperative *C
ruise control is malfunctioning.
#Visit a qualified specialist workshop.
Lowering *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.
Max. Speed 22 mph *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).
426
Display messages and warning/indicator lamps

Active Steering Assist ............................ .167
Ac tivating/deactivating .......................1 69
Ac tive Emergency Stop Assist .............. 171
Ac tive Lane Change Assi st.................. 169
Displ ays in the Instrument Display ...... .171
Fu nction ............................................... 167
Sy stem limitations .............................. .167
Ad aptive cruise control
see Active Dis tance Assist DISTRONIC
Ad aptive Highbeam Assist
Fu nction ............................................... 111
Switching on/off .................................. 112
Ad ditive s.................................................. 398
Engine oil ............................................ 398
Fu el ..................................................... 398
Ad ditive s (engine oil)
see Additives
Ad ditive s (fuel)
see Fuel
Ad dress book
see Contacts Ad
justing the balance/ fader
Burmes ter®high-end 3D sur round
sound sy stem ...................................... 326
Burmes ter
®sur round sound sy stem ... 325
Ad justing the bass, mid- range and
treble
Burmes ter
®high-end 3D sur round
sound sy stem ...................................... 325
Ad justing the mid- range, treble and
bass
Burmes ter
®high-end 3D sur round
sound sy stem ...................................... 325
Ad justing the sound focus
Burmes ter
®sur round sound sy stem ... 325
Ad justing the sound optimization
Burmes ter
®high-end 3D sur round
sound sy stem ...................................... 326
Ad justing treble, mid- range and bass
settings
Burmes ter
®high-end 3D sur round
sound sy stem ...................................... 325
ADS PLUS damping sy stem
see AIR BODY CONTROL Af
ter-sales service center
see ASS YST PLUS
Air bag ........................................................ 40
Fr ont air bag (driver, front passenger) ... 40
Ins tallation locations ............................ .40
Knee air bag .......................................... 40
Overview ............................................... 40
Pr otection ............................................. .41
Re duced pr otection .............................. .42
Side impact air bag ............................... 40
Wi ndow cur tain air bag .......................... 40
AIR BODY CONT ROL................................ .174
Setting ................................................. 176
Suspension .......................................... 174
Air distribution Setting (multimedia sy stem) ............... .122
Air freshener sy stem
see Frag rance sy stem
Air pressure see Tire pressure
Air suspension see AIR BODY CONTROL
Index 463