key MERCEDES-BENZ S-CLASS CABRIOLET 2017 Owners Manual

#
Ifth es eat belt pre-tensioning is no treduced,
mo vethes eat backres tbacks lightl y.
The locking mechanism releases. Fu
nction of PRE-SAFE ®
PLUS (anticipatory
occupant pr otection plus) PRE-
SAFE®
PLUS can de tect cer tain impacts,
particular lyan imminent rear impact ,and take
pre-em ptivem easures toprotect thev ehicle
occupants. These measures canno tnecessarily
pr eve nt an imminent impact.
PRE-SAFE ®
PLUS can implement thef ollowing
measures independentl yofeacho ther:
R Tightening thes eat belts on thed rive r's seat
and front passenger seat.
R Activating ther ear hazar dwarning light sata
higher flashin gfrequ enc y.
R Increasing brak epressure when thev ehicle
is stationar y.This brak eapplication is cancel‐
led automaticall ywhen thev ehicle pulls
aw ay. If an accident did no
toccur ,the pre-em ptive
measures that we retake na re re versed.
Sy stem limitations
The sy stem will no tinitiat eanyaction in thef ol‐
lowing situations:
R when reve rsing
The sy stem will no tinitiat eanybraking applica‐
tion in thef ollowing situations:
R whils tdriving
or
R when entering or exitin gap arkin gspace
while using ActiveP arking Assist Children in
thev ehicle Note
sont he saf etransportation of children &
WARNING Risk of accident and inju ry
due tochildren lef tunat tende dint he
ve hicle
If yo ul eave children unat tende dint hevehi‐
cle, they ma ybea bletos etthev ehicle in
motion, fore xamp leby:
R Releasing thep arking brake.
R Shifting thet ransmission out of park
position j.
R Startin gthe engine.
In addition, they ma yoperat evehicle equip‐
ment. #
Neverlea ve children and animals unat‐
te nde dint hevehicle. #
When leaving thev ehicle, alw ayst ake
th ek eywit hyou and loc kthe vehicle.
This also applies tomobil ephones if the
"Digital Car Keyint he smartphone" 50
Occupant saf ety

Key
Overvie
wofkeyfunctions &
WARNING Risk of accident and inju ry
due tochildren lef tunat tende dint he
ve hicle
If ch ildren ar eleftu nat tende dint hevehicle,
th ey could:
R ope ndoors,t hereb yendangering other
persons or road users.
R geto utofthev ehicle and be hit by
oncoming traf fic.
R ope rate ve hicle equipment and become
trapped, fore xamp le.
Moreo ver,ch ildren could also se tthe vehicle
in motion by,for example:
R releasing thep arking brake.
R shifting thea utomatic transmission out of
par kposition j.
R startin gthe engine. #
Neverlea ve children and animals unat‐
te nde dint hevehicle. #
When leaving thev ehicle, alw ayst ake
th ek eywit hyou and loc kthe vehicle.
This also applies tomobil ephones if the
"Digital Vehicle Keyint he smartphone"
function is activated via theM ercedes
me connect weba pp. #
Keep thek eyso ut of ther eac hofc hil‐
dren. This also applies tomobile
phones if the" Digital Vehicle Keyint he
smartphone" function is activated via
th eM ercedes me connect weba pp. *
NO
TEDama getothek eycaused by
magnetic fields #
Keep thek eyaway from strong mag‐
netic fields. 1
Locks
2 Batter ychec klamp
3 Unloc ks
4 Opens/closes theb ootlid
The keyloc ks and unlo ckst he following compo‐
nents:
R Doo rs
R Boo tlid
R Glov eb ox
R Fuelfiller flap 64
Opening and closing

If
yo udon otopen thev ehicle within appr ox‐
imatel y40seconds af teru nlocking:
R The vehicle is loc keda gain
R Anti- theftp rotection is reactivated
Do no tkeep thek eytoget her wit helectronic
devices or me talo bjects. This can af fect the
ke y's functionalit y.
% If batter ychec klamp 2does no tlight up
af te rp ressing the% or& button, the
batter yisdischar ged. Ac
tivating/deactivatin gthe acoustic lo cking
ve rification signal Multimedia sy
stem:
, Vehicle .
î Vehicle set-
tings .
Acoustic lock #
Activate Oor deacti vate ª thef unction. Ac
tivating/deactivatin gthe pani calarm Re
quirements:
% The panic alar mfunction is onl yavailable in
cer tain countries.
R The ignition is switched off. #
Toactivate: press button 1fora pprox‐
ima tely one second.
Av isual and audibl ealarmist riggered. #
Todeactivate: brieflyp ress but ton1again.
or #
Press thes tart/s topb utton on thec ockpit
(the keyisi nside thev ehicle). Changing
theu nlocking settings Po
ssible unlocking functions of thek ey:
R Central unlocking
R Unlocking thed rive r's door and fuel filler flap #
Toswitc hbetwe en settings: pressthe
% and& button ssimultaneousl yfor
appr oximatel ysix seconds until theb attery
ch eckl am pflashes twice.
If th eu nlocking function fort he driver's door
and fuel filler flap has been selec ted:
R Pressing the% button asecon dtime cen‐
trally unloc ksthev ehicle.
R Vehicles with KEYLESS-GO: ifyo ut ouch
th ei nner sur face of thed oor handle on the
driver's door ,onlyt he driver's door and fuel
fi ller flap ar eunlocked. Re
ducing the energy consu mptionoft hekey All
vehicles: ifyo udon otuse thev ehicle or a
ke yf or an extende dperio doft ime,youc an
re duce thee nergy consum ption of ther espec‐
tiv ek ey.T odos o, deactivat ethe keyf unctions. Opening and closing
65

#
Todeactivate: pressthe& button on the
ke yt wice in rapid succession.
The batter ychec klam poft hekeyf lashes
twic ebrief ly and light suponce. #
Toactivate: press anybutton on thek ey.
% When thev ehicle is star tedw itht he keyin
th es towa ge compartment of thec ent recon‐
sole, thek eyfunction sareautomatical ly
activated (→ page143). Re
moving/insertin gthe eme rgency key #
Toremo ve: press release knob 1.
Emer gency key2is pushed out slight ly. #
Pull out emer gency key2until it en gage sin
th ei ntermediat eposition.
% Youc an use thei ntermediat eposition of
emer gency key2toattac hthe keytoak ey
ri ng. #
Press release knob 1again and fully
re mo veemer gency key2. #
Toinser t:press release knob 1. #
Inser temer gency key2tothei ntermediate
position or full yuntil it engages. Re
placing the keyb attery &
DANG ER Serious damag etohealth
caused byswallowing batteries
Batteries contain toxic and cor rosiv es ub‐
st ances. Swallowing bat teries ma ycause
serious damag etohealth.
Ther eisar isk offata linjur y. #
Keep batteries out of ther eac hofc hil‐
dren. #
If batteries ar eswallowe d, seek medical
attention immediately. +
ENVIRONMEN
TALN OTE Environmental
dama gedue toimproper disposal of bat‐
te ries Batteries conta
in pollutants. It is
illegal todispose of them wit hthe household
ru bbish. #
Dispose of batteries in an
environmen tallyr esponsibl emanner.
Ta ke dischar gedb atteries toaq ualified
specialis tworks hop or toac ollection
poin tfor used batteries. Re
quirements:
R Your equir eaCR2 0323Vc ell batter y. 66
Openin gand closing

Mercedes-Benzr
ecommendsthat youh avet he
batter yreplaced at aqualified specialis twork‐
shop. #
Remo vethee mer gency key( →pag e66). #
Press release button 2down full yand
re mo vecover 1. #
Remo vebatter ycompartment 3and take
out thed ischar gedb atter y. #
Inser tthe ne wbatter yintob atter ycompart‐
ment 3.O bservethep ositiv epole marking
in theb atter ycompartmen tand on theb at‐
te ry. #
Push in batter ycompartment 3. #
Replace co ver1sothat it engages. Problem
switht he key Problem
Possible causes/consequences and M
MSolutions
Yo uc an no lon gerloc koru nlockthe
ve hicle. Po
ssible causes:
R The keyb atte ry is dischar gedorn early dischar ged.
R Ther eisi nterfere nce from apowe rful radio signal source.
R The keyisf aulty. Opening and closing
67

Problem
Possible causes/consequences and M
MSolutions #
Chec kthe batter yusing theb atter ychec klam pand replace if necessar y. #
Use thee mer gency keytol ockoru nlock. #
Have thek eycheckedataq ualified specialis tworks hop.
Yo uh ave lostak ey. #
Have thek eydeacti vatedataq ualified specialis tworks hop. #
If necessar y,ha ve thel oc ks changed as well. Doors
Note
sont he additional doo rlock The additional door loc
kisonlya vailable for
ve hicles fort he United Kingdom. &
WARNING Risk of inju ryto persons
inside thev ehicle when thea dditional
door loc kisactivated
If th ea dditional door loc kisactivated, the
door scan no longer be opened from the
inside.
If th er ea repersons in thev ehicle, they can
no longer le avet he vehicle, e.g. in hazardous
situations. #
Neverlea ve persons unattended in the
ve hicle, particularly children, elderly
person sorpersonsinneed of help. #
Ifth er ea repersons in thev ehicle, do
no ta ctivat ethe additional door loc k. The additional door loc
kisautomaticall yactiva‐
te dint hefollowing situations:
R The vehicle is loc kedu sing thek ey.
R The vehicle is loc kedu sing KEYLESS-GO.
% Afterl ocking youc an issue asignal wit hthe
horn.
If th ea dditional door loc kisactivated, thed oors
cann otbe opened from thei nside. Yo
uc an deactivat ethe additional door loc kby
deactivating thei nterior pr otection (→ page93). Un
locking/opening thed oor sfromt he inside Un
ited Kingdom onl y:obser vethen otes on the
additional door loc k(→pag e68). 68
Opening and closing

The
vehicle is no tunloc ked:
R Ifyo uh ave lockedt he vehicle using thek ey.
R Ifyo uh ave lockedt he vehicle using KEY‐
LESS-GO. Un
locking/locking thev ehicle via amobile
phone Re
quirements:
R The vehicle is equipped wit hthe "Digital Car
Ke y" function.
R The "Digital Car Key" function is activated via
th eM ercedes me connect weba pp: http://
www.mercedes.me.
R Suitable mobile phone wit hNFC aerial (Near
Field Communication) and Secur eElement.
R Suf ficient charge leve loft he mobile
phone. On somemobile phones, thef unction
is also available when theb atter yisd is‐
ch arge d.
If th ev ehicle has been par kedf or longer than
tw ow eeks, theN FC aerial in thed oor handle is deactivated. Pull
thed oor handle toactivat ethe
NFC aerial again.
% Youc an checkt he suitability of your mobile
phon ebye ntering thep hone number at
http://www.mercedes.me.
Information about suitable mobile phones
can be obtained from your Mercedes-Benz
servic ecentr eorath ttp://www.mercedes-
benz.com/connect.
% Mercedes-Ben zrecommends that youc arry
th ee mer gency keyinc aseoff unction
re strictions.
% The function is only available in combination
wit hM ercedes me connec tand on lyin cer‐
ta in countries.
% Protectiv ecases around them obile phone
can impair thef unctionality. #
Mak esuret hat thec har geleve loft he mobile
phone is suf ficient. If necessar y,ch arge the
mobil ephone befor eunlocking thev ehicle. #
Touc ht he door handle on thed rive r's door in
th ea reaw hereN FC aerial 1is located with
th ep artoft he mobile phone wher ethe NFC
aerial is located.
The vehicle is loc kedoru nlockeda lternately.
If yo ul ose your mobile phone, deactivat ethe
"Digital Car Key" servic einMercedes me con‐
nect at https://www.mercedes.m e.70
Openin gand closing

%
Mercedes-Benzr ecommendsthat youc arry
th ee mer gency keyinc aseoff unction
re strictions. Lo
cking and unlocking thev ehicle wit hKEY‐
LESS-GO Re
quirements:
R The keyiso utside thev ehicle.
R The dis tance betwee nthe keya nd thev ehicle
does no texceed 1m.
R The driver's doo rand thed oor at whic hthe
door handle is used ar eclosed. #
Tounlo ckthev ehicle: touc ht he inner sur‐
fa ce of thed oor handle. #
Toloc kthe vehicle: touc hs ensor sur face
1 or2. #
Convenience closing: touc hr ecessed sen‐
sor sur face 2 forane xtende dperiod.
% Forfurther information on con venience clos‐
ing (→ page 83).
If yo uo pen theb ootlid from outside, theb ootlid
is automaticall yunloc ked. Problems wit
hKEYLESS-GO Problem
Possible causes/consequences and M
MSolutions
Yo uc an no lon gerloc koru nlockthe
ve hicle using KEYLESS-GO. Po
ssible causes:
R The keyb atte ry is dischar gedorn early dischar ged.
R Ther eisi nterfere nce from apowe rful radio signal source.
R The keyisf aulty. Opening and closing
71

Problem
Possible causes/consequences and M
MSolutions #
Chec kthe batter yusing theb atter ychec klam pand replace if necessar y. #
Use thee mer gency keytol ockoru nlockthe vehicle . #
Have thev ehicle and keyc hec kedataq ualified specialis tworks hop. Switching
thea utomatic locking feature
on/off The
vehicle is loc keda utomatically when the
ignition is switched on and thew heels ar eturn‐
ing fast erthan walkin gpace. #
Todeactivate: press and hol dbutton 1for
appr oximatel yfives econds until an acoustic
signal sounds. #
Toactivate: press and hold button 2for
appr oximatel yfives econds until an acoustic
signal sounds.
In thef ollowing situations, ther eisad anger of
being loc kedo ut when thef unction is activated:
R The vehicle is being towe d/pushed.
R The vehicle is being tested on adynamome‐
te r. 72
Opening and closing

Information on
thep owe rclosing function
fo rt he doo rs If
yo up ush thed oor int othe loc kuptot hefirst
de tent position, thep owe rclosing function will
auto matical lypull thed oor int othe loc k. Un
locking thed rive r'sd oor wit hthe eme r‐
ge ncy key #
Inser tthe emer gency keyasf ar as it will go
in to opening 1inthec over. #
Pull and hold thed oor handle. #
Pull thec over on thee mer gency keyas
st ra ight as possible away from thev ehicle
until it releases. #
Release thed oor handle. #
Turn thee mer gency keya nti-clo ckwise to
position 1.
% Right-hand-d rive ve hicles: turnthe emer‐
ge ncy keyint he opposit edirection. #
Carefully press thec ove rontot he loc kcylin‐
der until it engages and is seated firm ly. Boot
Opening the bo
otlid &
WARNING Risk ofexhaus tgas poisoning
Combustio nengines emit poisonous exhaust
ga ses suc hascarbon monoxide. Exhaust
ga ses can enter thev ehicle interior if the
boo tlid is open when thee ngine is running,
especially if thev ehicle is in motion. #
Alw ayss witc hoffthee ngine before
opening theb ootlid. #
Neverd rive wit hthe boo tlid open. Openin
gand closing 73