2018 MERCEDES-BENZ S-CLASS CABRIOLET tow

The components of there stra int sy stem can
be activated or deplo yed independently of
each other:
Component De tected deploy‐
ment situation
Emer gency Tension‐
ing Devices Fr
ontal impact, rear
impact, side impact,
ro llo ver
Driver's airbag, front
passenger airbag Fr
ontal impact
Knee airbag Frontal impact
Side impact airbag Side impact
Wi ndow airba gS ide impact,rollo ver,
frontal impact
The front passenger airbag can only be deploy ed
in an accident if thePA SSENGER AIR BAG OFF
indicator lamp is off. If the front passenger seat
is occupied, make sure, bo thbefore and during
th e journe y,that thest atus of the front
passenger airbag is cor rect (
→page 45)
(→page 45).
& WARNING Risk of burn s from hot air bag
components
The air bag parts are hot af ter an air bag has
been deploy ed.
#Do nottouch the air bag parts.
#Ha ve a deplo yed air bag replaced at a
qu alified specialist workshop as soon
as possible.
Mercedes-Benz recommends that you ha vethe
ve hicle towe dto aqu alified specialist workshop
af te r an accident. Take this into account, partic‐
ularly if an Emer gency Tensioning Device is trig‐
ge red or an airbag deplo yed.
If th e Emer gency Tensioning Devices are trig‐
ge red or an airbag is deplo yed, youwill hear a
bang, and a small amount of powder may also be
re leased:
RThe bang will not generally af fect your hear‐
ing.
RIn general, the powder released is not haz‐
ardous tohealth but may cause short-term breathing dif
ficulties topersons suf fering
from as thma or other pulmonary conditions.
Pr ov ided it is safe todo so, lea vetheve hicle
immediately or open the window in order to
pr eve nt brea thing dif ficulties.
Airbags and pyrotech nic Emergency Tensioning
Devices contain pe rchlorate material, which may
re qu ire special handling or environmental pro‐
te ction measure s.Na tional guidelines rega rding
wa ste disposal must be obser ved. In California,
see http://www.dtsc.ca.gov/HazardousWas te/
Pe rchlorate/index.cfm.
Seat belts
Pr otection pr ovided bythe seat belt
Alw aysfast enyour seat belt co rrectly before
st arting a journe y.A seat belt can only pr ovide
th e best le vel of pr otection if it is worncor rectl y.
Occupant saf ety 35

#Make surethat the seat belts are
undamaged, not wornand clean.
#Alw ays ha vethe seat belts checked
immediately af ter an accident at a
qu alified specialist workshop.
Only use seat belts that ha vebeen appr ovedfo r
yo ur vehicle byMercedes-Benz.
&
WARNING Risk of injury or death from
deplo yedpy rotech nic Emergency Ten‐
sioning Devices
Pyro tech nic Emergency Tensioning Devices
th at ha vebeen deplo yed are no longer opera‐
tional and are unable toper form their inten‐
ded pr otective function.
#Therefore, ha vedeplo yedpy rotech nic
Emergency Tensioning Devices immedi‐
ately replaced at a qualified specialist
wo rkshop.
Mercedes-Benz recommends that you ha vethe
ve hicle towe dto aqu alified specialist workshop
af te r an accident. *
NO
TEDama gecaused bytrapping the
seat belt
If an unused seat belt is not fully retracted, it
may become trapped in the door or in the
seat mechanism.
#Alw ays ensure that an unused seat belt
is fully retracted.
Ex tending/r etra cting the seat belt extender
The seat belt extender forth e front seat helps
yo ufa sten your seat belt. When the door is
closed, the seat belt extender extends.
Yo u can also extend the seat belt extender using
th e seat belt extender button.
#Switch on the ignition.
#Press seat belt extender button 1.
The seat belt extender extends.
The seat belt extender retracts again in thefo l‐
lowing cases:
RThe seat belt tongue is engaged in the seat
belt buckle
38 Occupant saf ety

Toavo idtherisks resulting from the deployment
of an air bag, each vehicle occupant must
obser vethefo llowing information:
RBefore starting your journe y,adjust your seat
co rrectly ;th e driver's seat and front
passenger seat should be mo ved as far back
as possible.
When doing so, alw ays obser vethe informa‐
tion on the cor rect driver's seat position
(
→page 81).
ROnly hold thesteering wheel bythesteering
wheel rim. This all owsthe air bag tobe fully
deplo yed.
RAlw ays lean against the seat backrest when
th eve hicle is in motion. Do not lean forw ards
or against the door or side windo w.You may
ot herwise be in the deployment area of the
air bags.
RAlw ayske ep your feet on thefloor. Do not
put your feet on the cockpit, forex ample.
Yo ur feet may otherwise be in the deploy‐
ment area of the air bag.
RIfch ildren are tra veling in theve hicle,
obser vethe additional no tes (→page 49).
RAlw aysstow and secure objects cor rectly.
Objects in theve hicle interior may pr event an air
bag from functioning cor rectly. Each vehicle
occupant must alw ays make sure of thefo llow‐
ing:
RThere are no people, animals or objects
between theve hicle occupants and an air
bag.
RThere are no objects between the seat , door
and door pillar (B-pillar).
RThere are no hard objects, e.g. coat hangers,
hanging on the grab handles or coat hooks.
RThere are no accessory parts, such as cup
holders, attached totheve hicle within the
deployment area of an air bag, e.g. on doors,
side windo wsor side trim.
RThere are no heavy, sharp-edged or fragile
objects in the poc kets of your clo thing. Store
such objects in a suitable place.
Re duced airbag pr otection
&
WARNING Risk of injury from modifica‐
tions tothe airbag co ver
If yo u modify an airbag co ver or af fix objects
such assticke rs to it,the airbag can no lon‐
ge r function cor rectl y.
#Ne ver modify an airbag co ver and do
not af fix objects toit.
The ins tallation location of an airbag is identified
by the AIRB AGsymbol (→page 40).
&
WARNING Risk of injury or death dueto
th e use of unsuitable seat co vers
Uns uitable seat co vers can obstruct or pre‐
ve nt the deployment of air bags integrated
into the seats.
Consequentl y,the air bags cannot protect
ve hicle occupants as they are designed to
do. In addition, operation of the automatic
front passenger air bag shutoff may be
re stricted.
42
Occupant saf ety

#You should only use seat covers that
ha ve been appr oved forth e cor respond‐
ing seats byMercedes-Benz.
&
WARNING Risk of injury duetomalfunc‐
tions of the sensors in the door paneling
Sensors tocontrol the airbags are located in
th e doors. Modifications or worknot per‐
fo rm ed cor rectly tothe doors or door panel‐
ing, as well as damaged doors, can lead to
th e function of the sensors being impaired.
The airbags might therefore not function
proper lyany more.
Consequent ly,th e airbags cannot protect
ve hicle occupants as they are designed to
do.
#Ne ver modify the doors or parts of the
doors.
#Alw ays ha vewo rkon the doors or door
paneling car ried out at a qualified spe‐
cialist workshop.
&
WARNING Risk of injury duetodeplo yed
airbag
A deplo yed airbag no longer has a pr otective
function and cann otprotect as intended in
th eev ent of an accident.
#Ha ve theve hicle towe dto aqu alified
specialist workshop in order tohave the
deplo yed airbag replaced.
Ha ve deplo yed airbags replaced immediately.
St atus of the front passenger airbag
Fu nction of the automatic front passenger
airbag shuto ff
The automatic front passenger airbag shutoff is
able todetect whe ther the front passenger seat
is occupied bya person or a child restra int sys‐
te m. The front passenger airbag and front
passenger knee airbag are then cor responding ly
either enabled or deactivated. When ins
talling a child restra int sy stem tothe
front passenger seat, alw ays make sure of the
fo llowing:
REnsure that thech ild restra int sy stem is posi‐
tioned cor rectly (→page 49).
RAlways obser vethech ild restra int sy stem
manufacturer's ins tallation instructions.
RNe ver place objects, e.g. cushions, under or
behind thech ild restra int sy stem.
RFu lly retract the seat cushion length adjust‐
ment.
RThe entire base of thech ild restra int sy stem
must alw aysre st on the sitting sur face of the
front passenger seat.
RThe backrest of thefo rw ard-facing child
re stra int sy stem must, as far as possible, be
re sting on the seat backrest of the front
passenger seat.
RThe child restra int sy stem must not touch the
ro of or be put under stra in by the head
re stra ints. Adjust the seat backrest inclina‐
tion and the head restra int setting accord‐
ing ly.
Occupant saf ety 43

respective SmartK ey.To do so, deactivate the
SmartK eyfunctions.
#To deactivate: pressthe& button on the
SmartK eytwice in quick succession.
The battery check lamp of the SmartK ey
fl ashes twice brief lyand lights up once.
#To activate: press any button on the Smart‐
Ke y.
% When theve hicle is star ted with the Smart‐
Ke yin thestow age compartment of the cen‐
te r console, theke yfunction sar eautomati ‐
cal lyactivated (
→page 130).
Re moving/inserting the eme rgency key
#To remo ve:press release knob 1.
Emer gency key2 is pushed out slight ly.
#Pull out emer gency key2 until it en gage s in
th e intermediate position.
% You can use the intermediate position of
emer gency key2 toattach theke yto ake y
ri ng.
#Press release knob 1again and fully
re mo veemer gency key2.
#To inser t:press release knob 1.
#Insert emer gency key2 tothe intermediate
position or fully until it engages.
Re placing the SmartK eybattery
&
DANG ER Serious damage tohealth
caused byswallowing batteries
Batteries contain toxic and cor rosive sub‐
st ances. Swallowing batte ries may cause
serious damage tohealth.
There is a risk of fata l injur y.
#Keep batteries out of there ach of chil‐
dren.
#If batteries are swallo wed, seek medical
attention immediately.
+ENVIRONMEN TALNO TEEnvironmental
damage causedbyimproper disposal of
batteries
Bat teries conta in pollutants. It is
illegal todispose of them with the household
ru bbish.
#
Dispose of batteries in an
environmen tally responsible manner.
Ta ke dischar ged batteries toaqu alified
specialist workshop or toa collection
point for used batteries.
Opening and closing 59

#Todeactivate: press and hold button 1for
appr oximately five seconds until an acoustic
signal sounds.
#To activate: press and hold button 2for
appr oximately five seconds until an acoustic
signal sounds.
In thefo llowing situations, there is a danger of
being loc ked out when the function is activated:
RThe vehicle is being towe d/pushed.
RThe vehicle is being tested on a dynamome‐
te r.
Information on the po wer closing function
fo r the doo rs
Ifyo u push the door into the lock up tothefirs t
de tent position, the po wer closing function will
au tomatically pull the door into the loc k.
Unlocking the driver's door with the mechan‐
ical key
#Insert the mechanical keyas far as it will go
into opening 1inthe co ver.
#Pull and hold the door handle.
#Pull the co ver on the mechanical keyas
st ra ight as possible away from theve hicle
until it releases.
64
Opening and closing

#Pull trunk lidremo teoperating switch 1.
#Vehicles with HANDS-FREE ACCESS: Make
a kicking mo vement with your foot below the
bumper (
→page 68).
Ve hicles with trunk lid co nvenience closing:
If an object obstructs the trunk lid during the
automatic opening process, the obs tacle de tec‐
tion sy stem stops the trunk lid. The obs tacle de
tection function is only an aid and is not a
substitute foryo ur attentiveness.
Closing the trunk lid
&
WARNING Risk of injury from unsecured
items in theve hicle
If objects, luggage or loads are not secured
or not secured suf ficientl y,they could slip,
tip ove r or be throw n around and thereby hit
ve hicle occupants.
There is a risk of injur y,particularly in the
ev ent of sudden braking or a sudden change
in direction.
#Alw aysstow objects in such a wayth at
th ey cannot be thro wn around.
#Before the journe y,secure objects, lug‐
ga ge or loads against slipping or tipping
ove r.
&
WARNING Risk of becoming trapped
duri ng au tomatic closing of the trunk lid
Pa rts of the body could become trapped dur‐
ing automatic closing of the trunk lid. More‐
ove r,people, e.g. children, may be standing
in the closing area or may enter the closing
area during the closing process.
#Make sure that nobody is in the vicinity
of the closing area during the closing
process.
#Use one of thefo llowing options tostop
th e closing process:
RPress thep button on the
SmartK ey.
RPress or pull there mo teoperating
switch on the driver's door.
RPress the closing or locking button
on the trunk lid.
RPress theto p of thest ar on the
trunk lid.
Ve hicles with HANDS-FREE ACCESS: It is also
possible tostop the closing process bymoving
66
Opening and closing

*NO
TEDama getotheve hicle caused by
unin tentional lyopening the trunk lid
RWhen using an automatic car wash
RWhen using a high pressure cleaner
#Deactivate KEYLESS-GO or make sure
that the SmartK eylocated is at least
10 ft(3 m) away from theve hicle in
such situations.
When making the kicking mo vement, make sure
th at your feet are firm ly on the ground, other‐
wise you could lose your balance, e.g. on ice.
Re quirements:
RThe SmartK eyis behind theve hicle.
RStand at least 12in (30 cm) away from the
ve hicle while per form ing the kicking mo ve‐
ment.
RDo not come into contact with the bumper
while making the kicking mo vement.
RDo not car ryout the kicking mo vement too
slowl y.
RThe kicking mo vement must be towa rdsth e
ve hicle and bac k.
1Sensor detection range
If se veral consecutive kicking mo vements are
not successful, waitte n seconds.
Sy stem limitations
The sy stem may be impaired or may not function
if:
RSnow or dirt, e.g. from road salt, co vers the
sensor area.
RThe kicking mo vement is made using a pros‐
th etic leg. The trunk lid could be opened or closed unin
ten‐
tional ly, in thefo llowing situations:
RIf a person's arms or legs are moving in the
sensor de tection range, e.g. when polishing
th eve hicle, sitting on the edge of the trunk,
or picking up objects.
RIf objects are mo ved or placed behind the
ve hicle, e.g. charging cables, tensioning
st ra ps or luggage.
Deactivate KEYLESS-GO (
→page 58) or do not
car rythe SmartK eyabout your person in such
situations.
Switch ing separate trunk locking on/off
Ifyo u centrally unlo cktheve hicle while separate
locking is activated, the trunk remains loc ked.
Opening and closing 69