2018 MERCEDES-BENZ S-CLASS CABRIOLET change time

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.
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Driving and pa rking

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.
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Driving and pa rking

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 driver isrequ ired tokeep their hands on
th esteering wheel at all times and be able to
inter vene at any time tocor rect the course of
th eve hicle and keep it in lane.
RThe status of Active Steering Assist is dis‐
pla yed in thest atus bar of the multifunction
displa y.
Ste ering and contact de tection
The driver is requ ired tokeep their hands on the
st eering wheel at all times and tobe able to
inter vene at any time. The driver must expect a
ch ange from active topassive mode or vice
ve rsa at any time.
If th e sy stem reaches a sy stem limitation or the
driver has not steered theve hicle for a consider‐
able period of time or has remo vedth eir hands
from thesteering wheel, the sy stem will,
depending on the situation, firs t alert the driver
with a visual warning. Display 1appears in the
multifunction displa y.Ifth e driver still does not
st eer theve hicle, or still has not take n hold of
th esteering wheel, a repeated warning tone
sounds in addition tothe visual warning mes‐
sage toremind the driver totake control of the
ve hicle.
The warning message does not appear or disap‐
pears if one of thefo llowing conditions are me t:
RThe driversteers theve hicle.
RThe driver presses a steering wheel button or
operates Touch Control.
Ac tive Steering Assist is only an aid. The driver is
re sponsible forth e dis tance totheve hicle in
front, forve hicle speed, for braking in good time
and forst ay ing in lane. Before changing lanes,
th e driver must make sure that the neighboring
lane is free (glance over the shoulder). Sy
stem limitations
Ac tive Steering Assist has a limited steering tor‐
qu efo r lateral guidance. In some cases, the
st eering inter vention is not suff icienttokeep the
ve hicle in the lane or
todrive past exit
s.Ac tive
St eering Assist cann otprov ide the driver with
st eering assis tance at traf fic circles, T-intersec‐
tions, intersections, tollst ations or turns, for
ex ample.
The sy stem may be impaired or may not function
in thefo llowing ins tances:
RIn sno w,rain, fog, heavy spr ay, if there is
gl are, direct sunlight, greatlyvarying light
conditions, reflections or stro ng shado wson
th e car riag ew ay.
RInsuf ficient road illumination.
RThe windshield in the area of the camera is
dirty, fogged up, damaged or co vered.
RAb sence of lane markings, or se veral unclear
lane markings, or if the markings change rap‐
idly.
RThe dis tance totheve hicle in front is too
small and the lane markings thus cannot be
de tected.
16 8
Driving and pa rking

Assistance when changing lanes is pr ovided if all
th efo llowing conditions are me t:
RYou are driving on a highwa yor road with
multiple lanes in the direction of tr avel.
RThe neighboring lane is separated bya bro‐
ke n lane mark ing.
RNovehicle is de tected in the adjacent lane.
RThe driven speed is between 50 mph
(80 km/h) and 110mp h(1 80 km/h).
RAc tive Lane Change Assi stis activated bythe
driver with the turn signal indicator.
RAc tive Lane Change Assi stis switched on in
th e multimedia sy stem.
RAc tive Steering Assist is switched on and
active.
If no vehicle is de tected in the adjacent lane and
a lane change is permitte d,thesteering wheel
symbol and the ar row are shown in green 2.
The Lane Change to the Left message appears,
fo rex ample. If Active Lane Change Assi sthas
been activated with the turn signal indicator but
a lane change is not immediately possible, the
st eering wheel symbol remains green and the
ar row appears gray 1. When the lane change
support starts, the turn signal indicator is auto‐
matically activated. If a lane change is not possi‐
ble, the ar row fa des out af ter a short period and
a new lane change must be initiated. An immedi‐
ate lane change is only possible on highw aysec‐
tions without speed limits. If
th e sy stem is impaired, Active Lane Change
Assi stmay be canceled. If it is canceled the
Lane Change Canceled message appears inthe
multifunction display and a warning tone sounds.
&
WARNING Risk of accident from chang‐
ing lane toan occupied adjacent lane
Lane Change Assistcannot al ways detect
clear lyifth e adjacent lane is free.
The lane change might be initiated although
th e adjacent lane is not free.
#Before changing lanes, make sure that
th e neighboring lane is free and there is
no danger to otherroad users.
#Monitor the lane change.
&
WARNING Risk of accident if Lane
Change Assist unexpectedlystops func‐
tioning
If th e sy stem limitations for Lane Change
Assist ha vebeen reached, there is no guar‐
antee that the sy stem will remain active.
17 0
Driving and pa rking

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
1

yourself and toavo id obs tacles when back ing
up.
The rear view camera is only an aid. It is not a
substitute foryo ur attention tothe sur roundings.
The responsibility for safe maneu vering and
pa rking remains with you. Make sure that there
are no persons, animals or objects in the maneu‐
ve ring area while maneu vering and pa rking in
parking spaces.
Yo u can select from thefo llowing vie ws:
RNo rmal view
RWide-angle view
The area behind theve hicle is displa yed as a
mir ror image, as in the inside rearview mir ror. Camera vie
wsinthe multimedia sy stemNormal view
1Ye llow lane marking the course the tires will
ta ke atthe cur rent steering wheel angle
(dynamic)
2Ye llow guide line, vehicle width (driven sur‐
fa ce) depending on the cur rent steering
wheel angle (dynamic)
3Re d guide line at a dis tance of appr oximately
12 in (0.3 m) from there ar area
4Orange warning display of Parking Assist
PA RKTRONIC: obstacles ar e amedium dis‐
ta nce away (between appr oximately 1.0 ft
(0.3 m) and 2.0 ft(0.6 m))
5Re dwa rning display of Parking Assist
PA RKTRONIC: obstacles ar eve ry close
(appr oximately 1.0 ft (0.3 m) or less)
6Ye llow warning display of Parking Assist
PA RKTRONIC: obstacles ar eat adis tance of
between appr oximately 2.0 ft(0.6 m) and
3.3 ft(1.0 m)
% Ifth e entire sy stem fails, the inner segments
of thewa rning display are shown in red. The
indicator lamp on thePa rking Assist
PA RKTRONI Cbut ton lights up and theé
symbol appears in the multifunction displa y.
If th e sy stem fails at there ar, the display of
th e segments changes as follo ws :
RThe rear segments are shown in red
when backing up.
RThe rear segments are hidden when driv‐
ing forw ards.
When Active Parking Assist is active, the
lanes are display
e d in green.
If Pa rking Assist PARKTRONI Cis deacti vated,
th ewa rning display fades out.
18 6
Driving and pa rking

On completion ofthe parking procedure, the
Parking Assist Finished, Take Control of Vehicle
display message appears. Further maneuvering
may still be necessar y.
#After completion of the parking procedure,
safeguard theve hicle against rolling away.
When requ ired bylegal requirements or local
conditions: turn the wheels towa rdsth e curb.
% You can stop theve hicle and change the
transmission position du ring the parking pro‐
cedure. The sy stem then calculates a new
ve hicle path. The parking procedure can
th en be continued. If no new vehicle path is
av ailable, the transmission position will be
ch anged again. If theve hicle has not yet
re ached the parking space, the parking pro‐
cedure will be canceled, should a gear be
ch anged.
Exiting a pa rking space with Active Parking
Assist
Re quirements:
Yo u can only exit a parking space with Active
Pa rking Assist if you ha veprev iously par kedth e
ve hicle with Active Parking Assist. Please no
tethat you are responsible forth eve hi‐
cle and sur roundings during the entire parking
procedure.
#St art theve hicle.
#Press button 1.
The Active Parking Assist view appears on
th e multimedia sy stem displa y.
#Ifth eve hicle has been par ked at right angles
to the direction of tra vel: in area 2, select
direction of tra vel3.
% The vehicle path shown on the multimedia
sy stem display may dif fer from the actual
ve hicle path.
#Confirm direction of exit3 todrive out of
th e parking space.
Driving and parking 19
3