2018 MERCEDES-BENZ S-CLASS CABRIOLET park assist

Autonomous braking function
The autonomous braking function may inter vene at speeds starting from appr oxima tely 4mp h(7 km/h )in the following situations:
Ve hicles tr aveling in
front St
ationary vehicles Crossing vehicles Crossing pedestrians Stationary pedes‐
trians
Ve hicles without Driv‐
ing Assis tance Pack‐
age up
toappr ox.12 4mp h
(200 km/h) up
toappr ox.31 mp h
(50 km/h) no
reaction uptoappr ox.37 mph
(60 km/h) no
reaction
Ve hicles with Driving
Assis tance Package up
toappr ox.15 5mp h
(250 km/h) up
toappr ox. 62 mph
(100 km/h) up
toappr ox. 43 mph
(70 km/h) up
toappr ox. 43 mph
(70 km/h) up
toappr ox. 43 mph
(70 km/h)
Situation-dependent braking assistance
Situation-dependent braking assistance may inter vene at speeds starting from appr oxima tely 4mp h(7 km/h )in thefo llowing situations:
Ve hicles tr aveling in
front St
ationary vehicles Crossing vehicles Crossing pedestrians Stationary pedes‐
trians
Ve hicles without Driv‐
ing Assis tance Pack‐
age up
toappr ox.15 5mp h
(250 km/h) up
toappr ox. 50 mph
(80 km/h) no
reaction uptoappr ox.37 mph
(60 km/h) no
reaction
Ve hicles with Driving
Assis tance Package up
toappr ox.15 5mp h
(250 km/h) up
toappr ox. 62 mph
(100 km/h) up
toappr ox. 43 mph
(70 km/h) up
toappr ox. 43 mph
(70 km/h) up
toappr ox. 43 mph
(70 km/h)
Driving and parking 15
7

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

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

Active Di stance Assist DI STRONIC
Function of Active Di stance Assist
DI STRO NIC
Active Dis tance Assist DISTRONIC maintains the
set speed on free-flowing roads. If vehicles
ahead are de tected, the set dis tance is main‐
ta ined, if necessar y,unt ilth eve hicle comes toa
halt. The vehicle accelerates or brakes depend‐
ing on the dis tance totheve hicle in front and
th e set speed. Speed (in thera nge between
15 mp h(2 0 km/h) and 130mp h(210 km/h))
and the dis tance totheve hicle ahead are set
and sa ved on thesteering wheel. Other
features of Active Dis tance Assist
DISTRONIC:
RAd justs the driving style depending on the
selected drive program (fuel-saving, comfort‐
able or dynamic) (
→page 136)
RRe acts tostationary vehicles in urban speed
ra nges (e xcept bicycles and mo torcyc les) if
conditions are suf ficient toenable de tection.
It also does not de tect pedestrians.
RInitiates rapid acceleration tothestored
speed, if the turn signal indicator is switched
on tochange totheove rtaking lane.
RTa ke s one-sided overtaking restrictions into
account on highw ays or on multi-lane roads
with separate roadw ays.
Ve hicles with Active Parking Assis t:ifth eve hicle
has been braked toast andstill on a multi-lane,
separate roadw ay by Active Dis tance Assist
DISTRONIC, it can au tomatical lyfollow th
eve hi‐
cle in front driving off again within 30 seconds. If
a crit

ical situation is de tected when driving off, a
visual and acoustic warning is given indicating
th at the driver must now take control of theve hi‐
cle. The vehicle is not accelerated any fur ther. Ac
tive Dis tance Assist DISTRONIC is only an aid.
The driver is responsible forke eping a safe dis‐
ta nce totheve hicle in front, forve hicle speed
and for braking in good time.
Sy stem limitations
The sy stem may be impaired or may not function
in thefo llowing ins tances, forex ample:
RIn snow ,ra in, fog, heavy spr ay, if there is
gl are, in direct sunlight or in greatly varying
ambient light.
RThe windshield in the area of the camera is
dirty, fogged up, damaged or co vered.
RIfth era dar sensors are dirty or co vered.
ROn slippery roads, braking or accelerating
can cause the drive wheels tolose traction
and theve hicle could then skid.
RIn parking garage s or on roads with steep
uphill or downhill gradients.
Do not use Active Dis tance Assist DISTRONIC in
th ese situations.
16 2
Driving and pa rking

&WARNING Risk of accident from acceler‐
ation or braking byActive Dis tance
Assist DISTRONIC
Ac tive Dis tance Assist DISTRONIC may accel‐
erate or brake in thefo llowing cases, for
ex ample:
RIfth eve hicle pulls away using Active Dis‐
ta nce Assist DISTRONIC.
RIfth estored speed is called up and is
considerably faster or slo werth an the
cur rently driven speed.
RIfAc tive Dis tance Assist DISTRONIC no
longer de tects a vehicle in front or does
not react toreleva nt objects.
#Alw ays carefully obser vethe traf fic con‐
ditions and be ready tobrake at all
times.
#Ta ke into account the tra ffic situation
before calling up thestored speed.
&
WARNING Risk of accident due toinsuf‐
fi cient decele ration byActive Dis tance
Assist DISTRONIC
Ac tive Dis tance Assist DISTRONIC brakes
yo ur vehicle with up to50 % of the maximum
possible deceleration. If this decele ration is
not suff icient,Active Dis tance Assist
DISTRONIC alerts you with a visual and
acoustic warning.
#In these cases, adjust your speed and
ke ep a suf ficient dist ance.
#Braketheve hicle yourself and/or take
ev asive action.
&
WARNING Risk of accident if de tection
function of Active Dis tance Assist
DISTRONIC is impaire d
Ac tive Dis tance Assist DISTRONIC does not
re act or only pa rtially reacts:
RWhen driving on a dif fere nt line tothe
ve hicle ahead or changing lane.
RTo pedestrians, animals, bicycles or
mo tor bikes, stationary vehicles or unex‐
pected obs tacles.
RTo complex traffic situations.
RTo oncoming vehicles and crossing traf‐
fi c.
Ac tive Dis tance Assist DISTRONIC can nei‐
th er give warnings nor inter vene in such sit‐
uations.
#Alw ays obser vethe tra ffic conditions
carefully and react accordingl y.
OperatingActive Di stance Assist DI STRO NIC
Re quirements:
RThe vehicle has been star ted.
RThe elect ric park ing brake is released.
RESP®is activated and is not inter vening.
RThe transmission is in position h.
RAllthe doors are closed.
RCheck of thera dar sensor sy stem success‐
fully comple ted (vehicle tra veling fasterthan
12 mp h (20 km/h)).
Driving and parking 16
3

or
#Press and holdrocker switch 3up/down to
th e pressure point.
The stored speed is increased or reduced in
increments of 1 mph (1 km/h).
or
#Press rocker switch 3beyond the pressure
point.
The stored speed is increased or reduced by
5 mp h(1 0 km/h).
or
#Press rocker switch 3beyond the pressure
point and hold.
The stored speed is increased or reduced in
increments of 5 mph (10 km/h).
#Toincrease or reduce the speci fied dis‐
tance from theve hicle in front: press
rock er switch 2up or down.
Function of Active Speed Limit Assi st
%
The availability of thefo llowing function is
countr y-dependent.
If a change in the speed limit is de tected and
Ac tive Dis tance Assist DISTRONIC is acti vated,
Ac tive Dis tance Assist DISTRONIC assumes this
new speed as thestored speed.
The driven speed is adjus ted when theve hicle is
le ve l with the traf fic sign at the latest. In the
case of signs indicating entry into an urban area,
th e speed is adap ted beforehand. The speed
limit display in the Instrument Display is alw ays updated when
theve hicle is le vel with the tra ffic
sign.
If th ere is no speed restriction on an unlimi ted
st re tch of road (e.g. on a highwa y),there com‐
mended speed is adop ted as thestored speed.
The sy stem uses the speed stored on an unlimi‐
te dstre tch of road as there commended speed.
If yo u do not alter thestored speed on an unlimi‐
te dstre tch of road, there commended speed is
80 mph (130 km/h).
If Ac tive Dis tance Assist DISTRONIC has been
put into passive modebypressing the accelera‐
to r pedal, only speed limits which are higher
th an the set speed are adop ted.
Ac tive Speed Limit Assi stcan be configu red in
th e multimedia sy stem (→page 199).
Ac tive Speed Limit Assi stis only an aid. The
driver is responsible forke eping a saf e dis
tance
to theve hicle in front, forve hicle speed and for
brak

ing in good time. The maximum permissible
speed also depends on factors such asthero ad
sur face and traf fic conditions.
Driving and park ing16
5

RThe carriag ewa yis nar row and winding.
RObs tacles on the lane or projecting out into
th e lane.
The sy stem does not pr ovide assis tance in the
fo llowing conditions:
ROn tight bends, traf fic circles and when turn‐
ing.
RIf yo u act ively change lane without switch ing
on the turn signal indicator.
&
WARNING Risk of accident if Active
St eering Assist unexpectedly stops func‐
tioning
If th e sy stem limitations of Active Steering
Assist are reached there is no guarantee that
th e sy stem will remain active or will keep the
ve hicle in lane.
#Alw ayske ep your hands onthesteering
wheel and obser vethe tra ffic carefull y.
#Alwaysst eer theve hicle paying atten‐
tion totraf fic conditions.
&
WARNING Risk of accident if Active
St eering Assist unexpectedly inter venes
A malfunction in the de tection of lane mark‐
ings and objects can occur.
This could cause unexpected steering inter‐
ve ntion.
#Steer according totraf fic conditions.
Ac tivating Active Steering Assist
Re quirements:
RESP®must be activated, but not inter vening.
RAc tive Dis tance Assist DISTRONIC is acti va‐
te d.
#If indicator lamp 1is off: press button 2.
Fu nction of Active Lane Change Assi st
% The availability of thefo llowing function is
countr y-dependent.
Ac tive Lane Change Assi stsupports the driver
when changing lanes, byapplying steering tor‐
qu e.
Driving and parking 16
9

Lane Change Assist cannotthen assist you
by applying steering torques .
#Always monitor the lane change and
ke ep your hands onthesteering wheel.
Obser vethe tra ffic conditions and steer
and/or brake if necessar y.
System limitations
The sy stem limitations of Active Steering Assist
apply toActive Lane Change Assi st
(
→page 167).
Ac tivating/deactivating Active Lane Change
Assi st
Multimedia sy stem:
,Vehicle.k Assistance
#Select Lane Change Assist .
#Activate Oor deacti vate ª the function.
Fu nction of Active Eme rgency Stop Assist
If th e driver continues toigno rethere peated
acoustic warning toput their hands on thesteer‐
ing wheel, Active Dis tance Assist DISTRONIC
re duces the speed. If the driver still does not
re spond, theBeginning Emergency Stop mes‐sage is shown in
the multifunction displa y.The
ve hicle is decelerated in stages toast andstill. At
speeds below 40 mph(6 0 km/h) the hazard
wa rning lights switch on automaticall y.
When theve hicle is stationar y,thefo llowing
actions are car ried out:
RThe vehicle is secured with the electric park‐
ing brake.
RAc tive Dis tance Assist DISTRONIC is ended.
RThevehicle is unloc ked.
RIf possible, an emer gency call is placed to
th e Mercedes-Benz emer gency call center.
The driver can cancel the deceleration at any
time byper form ing one of thefo llowing actions:
RSt eering
RDepressing the brake or accelera tor pedal
RPressing a steering wheel button or operat‐
ing Touch Control
RAc tivating or deacti vating Active Dis tance
Assist DISTRONIC
Overview ofActive Di stance Assist
DI STRO NIC displa ysinthe instrument clus‐
te r
The assis tance graphic and thest atus display
show thest atus of thefo llowing functions in the
instrument clus ter:
RAc tive Dis tance Assist DISTRONIC
RRoute-based speed adap tation
RAc tive Steering Assist
Driving and parking 17
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