ignition MERCEDES-BENZ S-CLASS CABRIOLET 2019 Owner's Manual

Re
stra int sy stem functionality When
the ignition is switched on, a self-test is
per form ed, during which the0075 restra int sys‐
te m wa rning lamp lights up. It goes out no later
th an a few seconds af terth eve hicle is star ted.
The components of there stra int sy stem are then
functional. Malfunctioning
restra int sy stem A malfunction has occur
red in there stra int sys‐
te m if:
R the0075 restra int sy stem warning lamp does
not light up when the ignition is switched on
R the0075 restra int sy stem warning lamp
lights up continuously or repeatedly during a
journey &
WARNING Risk of inju ryor fata l injury
due toa malfunction in there stra int sys‐
tem
If th ere stra int sy stem is malfunctioning,
re stra int sy stem components may be trig‐ ge
red unintentionally or might not be trig‐
ge red at all in theev ent of an accident. This
may af fect the Emer gency Tensioning Device
or airbag, forex ample. #
Have there stra int sy stem checked and
re paired immediately at a qualified spe‐
cialist workshop. Fu
nction of there stra int sy stem in an acci‐
dent How
there stra int sy stem works is de term ined by
th e se verity of the impact de tected and the type
of accident anticipated:
R Frontal impact
R Rear impact
R Side impact
R Rollover
The activation thre sholds forth e components of
th ere stra int sy stem are de term ined based on
th eev aluation of the sensor values measured at
va rious points in theve hicle. This process is pre-
em ptive in nature. The triggering/deployment of th
e components of there stra int sy stem must
ta ke place in good time at thest art of the colli‐
sion.
Fa ctors whi chcan only be seen and measu red
af te r a collision has occur red do not play a deci‐
sive role in the deployment of an airbag. Nordo
th ey prov ide an indication of airbag deployment.
The vehicle may be deformed significantly with‐
out an airbag being deplo yed. This is the case if
only parts which are relatively easily deformed
are af fected and thera te ofvehicle deceleration
is not high. Con versely, an airbag may be
deplo yedev en though theve hicle suf fers only
minor deformation. If very rigid vehicle parts
such as longitudinal members are hit, forex am‐
ple, this may result in suf ficiently high le vels of
ve hicle deceleration. Occupant saf
ety31

#
Make sure that 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 which ha
vebeen appr oved
fo ryo ur vehicle byMercedes-Benz. &
WARNING Risk of inju ryor death from
deplo yedpy rotech nic Emergency Ten‐
sioning Devices
Py rotech 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.
Mercedes -AMG vehicles: observeth e no tes in
th e Supplement. Otherwise, you may failto rec‐
ognize dangers. The seat belt extender button is
not available in Mercedes-AMG vehicles.
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:
R The seat belt tongue is engaged in the seat
belt buckle Occupant saf
ety35

A pe
rson in the front passenger seat could
th en, forex ample, come into con tact wi th
th eve hicle interior, especially if the person is
sitting too close tothe cockpit.
If th e front passenger seat is occupied,
alw ays ensure that:
R The classification of the person in the
front passenger seat is cor rect and the
front passenger airbag is enabled or disa‐
bled in accordance with the person in the
front passenger seat.
R The front passenger seat has been mo ved
as far back as possible.
R The person is seated cor rectl y. #
Ensu re, bo thbefore and during the jour‐
ne y,that thest atus of the front
passenger airbag is cor rect. If
th e front passenger seat is occupied, the clas‐
sification of the person or child restra int sy stem
on the front passenger seat take s place af terthe
front passenger front airbag shutoff self-test.
The PASSENGER AIR BAG indicator lamps dis‐ play
thest atus of the front passenger front air‐
bag.
Alw ays obser vethe no tes on the function of the
PA SSENGER AIR BAG indicator lamps
(→ page 42).
Fu nction of thePA SSENGER AIR BAG indica‐
to r lamps Self-
test of automatic front passenger front
airbag shu toff
When the ignition is switched on, a self-test is
per form ed during which the two PASSENGER
AIR BAG ON and OFF indicator lamps light up
simul taneously.
The status of the front passenger front airbag is
displa yed af terth e self-tes t:
R PASSENGER AIR BAG ON lights up for
60 seconds, subsequently bo thindicator
lamps are off (PASSENGER AIR BAG ON and
OFF): the front passenger front airbag is able
to deploy in theeve nt of an accident.
R PASSENGER AIR BAG OFF lights up continu‐
ously: the front passenger front airbag is dis‐
abled. It will then not be deplo yed in the
eve nt of an accident.
If th ePA SSENGER AIR BAG ON indicator lamp is
off, on lythePA SSENGER AIR BAG OFF indicator
lamp sho ws thest atus of the front passenger
front airbag. The PASSENGER AIR BAG OFF indi‐
cator lamp may be lit continuously or be off.
If th ePA SSENGER AIR BAG OFF indicator lamp
and the0075 restra int sy stem warning lamp 42
Occupant saf ety

If
yo u do not open theve hicle within appr ox‐
imately 40 seconds af ter unlocking:
R The vehicle is loc ked again
R Anti- theft pr otection is reactivated
Do not keep the SmartK eytoge ther with elec‐
tronic devices or me tal objects. This can af fect
th e SmartK ey's functionality.
% If battery check lamp 2does not light up
af te r pressing the0036 or0037 button, the
battery is dischar ged. Ac
tivating/deactivating the acoustic lo cking
ve rification signal Multimedia sy
stem:
, Vehicle .
î Vehicle Set-
tings .
Acoustic Lock #
Activate 0073or deacti vate 0053 the function. Ac
tivating/deactivating the panic alarm Re
quirements:
R The ignition is switched off %
The panic alarm function is only available in
cer tain countries. #
Toactivate: press button 1for appro x‐
ima tely one second.
A visual and audible alarm is triggered. #
Todeactivate: briefly press but ton1 again.
or #
Press thest art/ stop button on the cockpit
(the SmartK eyis inside theve hicle). Changing
the unlocking settings Po
ssible unlocking functions of the SmartK ey:
R Central unlo cking R
Unlocking the driver's door and fuel filler flap #
Toswitch between settings: pressthe
0036 and0037 buttons simultaneously for
appr oximately six seconds until the battery
ch eck lamp flashes twice.
If th e unlocking function forth e driver's door
and fuel filler flap has been selec ted:
R Pressing the0036 button a second time cen‐
trally unloc kstheve hicle
R Vehicles with KEYLESS-GO: Ifyo uto uch
th e inner sur face of the door handle on the
driver's door, only the driver's door and fuel
fi ller flap are unlo cked. Deactivating
the SmartK eyfunctions If
yo u do not use theve hicle or a SmartK ey for
an extended pe riod of time, you can reduce the
energy consum ption of there spective Smart‐
Ke y . Todo so, deactivate the SmartK eyfunc‐
tions. Opening and closing
59

If
yo u open the trunk lid from outside, the trunk
lid is automatically unloc ked. Problems with KEYLESS-GO
Problem
Possible causes/consequences and 0050
0050Solutions
Yo u can no lon ger lock or unlock the
ve hicle using KEYLESS-GO. Po
ssible causes are:
R The SmartK eybattery is weak or dischar ged.
R There is inter fere nce from a po werful radio signal source.
R The SmartK eyis defective. #
Check the battery using the battery check lamp and replace if necessary (→ page 60). #
Use the mechanical keyto lock or unlock theve hicle (→ page 60). #
Have theve hicle and SmartK eychecked at a qualified specialist workshop. Switching
the automatic locking feature
on/off The
vehicle is loc ked automatically when the
ignition is switched on and the wheels are turn‐
ing fast erthan walking pace. 64
Opening and closing

#
With th e handle pointing upwards, insert the
mechanical key in tothe trunk lock as far as it
will go. #
Turn the mechanical key clo ckwise from posi‐
tion 0047toposition 0048. #
Turn the mechanical key back toposition 0047
and remo veit.
% Ifyo u use the mechanical keyto unlo ckand
open the trunk lid, the anti- theft alarm sys‐
te m will be triggered. Ac
tivating/deactivating the trunk lid opening
height restriction Multimedia sy
stem:
, Vehicle .
î Vehicle Set-
tings .
Trunk Lid Restriction
This function allo wsyouto av oid bumping the
trunk lid on a low garage ceiling, forex ample. #
Activate 0073or deacti vate 0053 the function. Side windo
ws Opening and closing
the side windo ws &
WARNING Risk of entrapment when
opening a side window
When opening a side windo w,parts of the
body could be dr awn in or become trapped
between the side window and window frame. #
When opening, make sure that nobody
is touching the side windo w. #
If someone is trapped, release the but‐
to n immedia tely or pull it in order to
close the side window again. &
WARNING Risk of becoming trapped
when closing a side window
When closing a side windo w,body parts
could be trapped in the closing area in the
process. #
When closing, make sure that no body
parts are in the closing area. #
If someone is trapped, release the but‐
to n immedia tely or press the button in
order toreopen the side windo w. &
WARNING Risk of becoming trapped
when children opera tethe side windo ws
Children could become trapped if they oper‐
ate the side windo ws, particularly when unat‐
te nded. #
Never lea vechildren unat tended in the
ve hicle. #
When leaving theve hicle, alw aysta ke
th e SmartK eywith you and lock the
ve hicle. Re
quirements:
R The po wer supply or the ignition is switched
on. 72
Opening and closing

1
Closes
2 Opens
The but tons on the driver's door take prece‐
dence. #
Tostart automatic operation: pressthe
0062 button be yond the point of resis tance
or pull and release it. #
Tointer rupt automatic operation: press or
pull the0062 button again.
% Automatic operation for closing is available
on lyforth e front side windo ws.
When theve hicle is switched off, the side win‐
do ws can continue being ope rated.
The function is available for around five minutes
or until a door is opened. All side windo
wscan be opened or closed simul‐
ta neously using button 1. #
Switch on the ignition. #
Toopen: press and hold button 1tothe
point of resis tance. #
Toopen ful ly:press and hold button 1
be yond the point of resis tance. #
Toclose: pull and hold button 1.
Au tomatic reve rsing function of the side win‐
do ws
If an object bloc ksa side wind owduring the
closing process, the side window opens again
automaticall y.The automatic reve rsing function
is only an aid and is not a substitute foryo ur
attentiveness. #
When closing, make sure that no body parts
are in the closing area. Opening and closing
73

Soft
top Opening and closing
the soft top using the
so ft-top switch &
WARNING Risk of becoming trapped
due tothe soft top lo wering unexpect‐
ed ly
If yo u do not fully open/close the soft top,
th e soft-to phy draulics depressurize af ter a
short time.
This causes the soft topto lowe r unexpect‐
edly and may cause you or others tobe trap‐
ped. #
Alw ays fully open or close the soft top. &
WARNING Risk of becoming trapped
when opening/closing the soft top .
When opening or closing the soft top, there
is a risk that parts of the body could become
trapped bymoving parts such as thero of
mechanism, the trunk lid, or the side win‐
do ws. #
When opening or closing, make sure
that no body parts are in the vicinity of
moving components. #
Release the button if somebody
becomes trapped. *
NO
TEPossible damage tothe soft top
when opening or closing The soft
top can be damaged when opening
or closing. #
Make sure there is suf ficient clearance
ab ove it. #
Only load the trunk below the trunk
separator so that it will not be pushed
upwards. #
Make sure that the trunk lid is closed. #
Ifth e soft top is dirty, wet or frozen, do
not open the soft top. *
NO
TEDama getothe soft top caused by
heavy objects Heavy objects placed on
the soft-to p com‐
partment co ver can dama gethe soft top or
soft-to p compartment co ver. #
Do not place he avy objects on the soft-
to p compartment co ver. #
Do not sit on the soft-to p compartment
co ver. Fo
r saf etyre asons, Mercedes-Benz recommends
opening or closing the soft top when theve hicle
is stationar y.
To open or close the soft top while you are driv‐
ing, do not exceed a maximum speed of 30 mph
(50 km/h). Toavo id inter rupting the closing
process while you are slightly exceeding this
speed, do not drive at a speed greater than
37 mph (60 km/h). #
Make sure that the trunk partition is closed. #
Close the trunk lid. #
Switch on the ignition. Opening and closing
77

#
Pull over and stop theve hicle safely as soon
as possible, paying attention toroad and traf‐
fi c conditions. #
Makesure that the ignition is switched on. #
Fully close the soft top using the soft-top
switch. Opening and closing
the trunk pa rtition The trunk partition co
vers luggage or loads in
th e trunk.
The soft top can be opened only when the trunk
partition is closed.
* NO
TEDama getothe soft top or load
due tolong objects The soft
top or load may be damaged with
th e soft top open. #
Do not place any overly long objects
inside or behind the side parcel nets
when the trunk partition is open. #
Make sure that the load does not push
th e trunk partition upwards. #
Press button 1.
Tr unk partition 2opens or closes automati‐
call y. Ac
tivating or deactivating AI RCAP AI
RCA Pre duces the draft in the front and rear
compartments when you are driving with the
soft top open. Pa
rticular lyturbulent air can reduce the ef fect of
AIR CAP.This can arise when you are driving
behind ano ther vehicle or if there is a crosswind,
fo rex ample.
AI RCA P consists of thefo llowing components:
R A wind deflector abo vethe windshield
R A wind screen behind bo threar seat head
re stra ints
When AI RCAP is activated, the wind deflector
and the wind screen extend simultaneously.
AIR CAP can be activated or deactivated at
speeds of up toappr oximately 100mph
(160 km/h). &
WARNING Risk of becoming trapped
when retracting AIR CAP
It is possible for persons tobecome trapped
when retracting AIR CAP. #
Make sure that persons do not hold
on to the upper frame of the windshield
and do not touch the wind deflector or
th e wind screen. Opening and closing
79

#
Switch on the ignition. #
Foldthe armrest upwards. #
Toactivate: press button 1.
AIR CAPex tends and the indicator lamps on
button 1light up. #
Todeactivate: press button 1again.
AIR CAPre tracts and the indicator lamps on
button 1go out. If
th eve hicle is par ked with the soft top open
and the ignition is switched off, AIR CAP will
re tract au tomatical ly.
When youre start the engine af ter having been
par ked, AIR CAP will extend again au tomatically. Installing and
removing the folding wind
screen &
WARNING Risk of accident when using
th e wind screen in poor visibility condi‐
tions
The wind screen impairs your view tothe
re ar, particular ly when darkor in poor visibil‐
ity conditions. #
Only use the wind screen in good visibil‐
ity conditions. &
WARNING Risk of accident and inju ry
due toan incor rectly ins talled wind
screen
If th e wind screen is not cor rectly ins talled it
can come loose during the journey and
endanger other road users. #
Install the wind screen as described. #
Do not place objects on the ins talled
wind screen. *
NO
TEThe wind screen can be dama ged
if ins talled when the soft top is closed The
vehicle interior or the wind screen can
be damaged if ins talled when the soft top
closed. #
Toinstall, open the soft top. *
NO
TEDama getothe wind screen due to
collision wi thseat backrests The wind screen may collide with
the front
seat backrests when ins talled. 80
Opening and closing