MERCEDES-BENZ S-CLASS CABRIOLET 2019 Repair Manual

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

#
Todeactivate: pressthe0037 button on the
SmartK eytwice in quick succession.
The battery check lamp of the SmartK ey
fl ashes twice brief lyand lights up once. #
Toactivate: press any button on the Smart‐
Ke y.
% When theve hicle is star ted with the Smart‐
Ke y in thestow age compartment of the cen‐
te r console, the SmartK eyfunctions are
auto matical lyactivated (→ page132). Re
moving/inserting the eme rgency key #
Toremo ve:press release button 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 the SmartK eyto
a ke yring. #
Press release button 1again and fully
re mo veemer gency key2. #
Toinser t:press release button 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 bat teries 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
dama gecaused byimproper 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. 60
Opening and closing

Re
quirements:
R Yourequ ire a CR 2032 3 V cell batter y.
Mercedes-Benz recommends that you ha vethe
battery replaced at a qualified specialist work‐
shop. #
Remo vethe mechanical key (→ page 60). #
Press release button 2down fully and
re mo vecover1. #
Remo vebattery compartment 3and take
out the dischar ged batter y. #
Insert the new battery into battery compart‐
ment 3. Obser vethe positive pole marking
in the battery compartment and on the bat‐
te ry. #
Push in battery compartment 3. #
Replace co ver1 sothat it engages. Problems with
the SmartK ey Problem
Possible causes/consequences and 0050
0050Solutions
Yo u can no lon ger lock or unlock the
ve hicle. Po
ssible causes are:
R The SmartK eybattery is dischar ged or nearly dischar ged.
R There is inter fere nce from a po werful radio signal source. Opening and closing
61

Problem
Possible causes/consequences and 0050
0050Solutions
R The SmartK eyis defective. #
Check the battery using the battery check lamp and replace if necessary (→ page 60). #
Use the emer gency keyto lock or unlock (→ page 60). #
Have the SmartK eychecked at a qualified specialist workshop.
Yo u ha velost a SmartK ey. #
Have the SmartK eydeactivated at a qualified specialist workshop. #
If necessar y,ha ve the mechanical lock changed as well. Doors
Un
locking and opening doors from the inside #
Pull door handle 2.
Locking pin 1pops up when the door is
unloc ked. Locking
the doors from the inside #
Take the SmartK eywith you when exiting the
ve hicle and close the driver's door. #
Press down locking knob 1onthe driver's
door from the front passenger seat. 62
Opening and closing

#
Exit theve hicle and press down the locking
knob on the front passenger door. #
Close the front passenger door. Locking/unlocking
theve hicle centrally from
th e inside #
Tounlo ck:press button 1. #
Tolock: press button 2. This does not lock or unlock
the fuel filler flap
and theglove box.
The vehicle is not unloc ked:
R Ifyo u ha veloc kedth eve hicle using the
SmartK ey.
R Ifyo u ha veloc kedth eve hicle using KEY‐
LESS-GO. Locking/unlocking
theve hicle with KEY‐
LESS-GO Requ
irements:
R The SmartK eyis outside theve hicle.
R The dis tance between the SmartK eyand the
ve hicle does not exceed 3 ft(1 m).
R The driver's door and the door at which the
door handle is used are closed. #
Tounlo cktheve hicle: touch the inner sur‐
fa ce of the door handle. #
Tolock theve hicle: touch sensor sur face
1 or2. #
Convenience closing: touch recessed sen‐
sor su rface 2for an extended pe riod.
% Further information on con venience closing
(→ page 75). Opening and closing
63

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

#
Todeactivate: press and hold button 1for
appr oximately five seconds until an acoustic
signal sounds. #
Toactivate: 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:
R The vehicle is being towe d/pushed. R
The vehicle is being tested on a dynamome‐
te r. Information on
the po wer closing function
fo r the doo rs If
yo u push the door into the lock tothefirst
de tent position, the po wer closing function will
auto matically pull the door into the loc k. Un
locking the driver's door with the emer‐
ge ncy key #
Insert the emer gency key as far as it will go
into opening 1inthe co ver. #
Pull and hold the door handle. #
Pull the co ver on the emer gency key as
st ra ight as possible away from theve hicle
until it releases. Opening and closing
65

#
Release the door handle. #
Turn the emer gency key counter-clockwise to
position 0047. #
Carefully press the co ver onto the lock cylin‐
der until it engages and is seated firm ly. Tr
unk Opening
the trunk lid &
DANG ER Risk of exhaust gas poisoning
Combustion engines emit poisonous exhaust
ga ses such as carbon monoxide. Exhaust
ga ses can enter theve hicle interior if the
trunk lid is open when the engine is running,
especially if theve hicle is in motion. #
Alw ays switch off the engine before
opening the trunk lid. #
Never drive with the trunk lid open. *
NO
TEDama getothe trunk lid byobs ta‐
cles ab ovetheve hicle The trunk lid swings upwards when it is
opened. #
Therefore, make sure that there is suf fi‐
cient clearance ab ovethe trunk lid. Yo
u ha vethefo llowing options for opening the
trunk lid: #
With th e trunk lid unloc ked, press theto p of
th e Mercedes star. #
Pull thefo lded-out Mercedes star when the
re ar view camera is activated and the trunk
lid is unloc ked.
% Toopen the trunk lid, pull on thefo lded-out
Mercedes star when there ar view camera is
activated. #
Press and hold the008B button on the
SmartK ey. 66
Opening and closing

#
Pull trunk lid remo teoperating switch 1. #
Vehicles with HANDS-FREE ACCESS: Make
a kicking mo vement with your foot below the
bumper (→ page 69).
Ve hicles with trunk lid conv enience closing:
If an item obstructs the trunk lid during the auto‐
matic opening process, the obs tacle de tection
sy stem will stop the trunk lid. The obs tacle de
tection function is only an aid and is not a
substitu teforyo ur attentiveness. Closing
the trunk lid &
WARNING Risk of inju ryfrom unsecu red
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. Obser
vethe no tes on loading theve hicle. &
WARNING Risk of becoming trapped
du ring 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:
R Press the008B button on the
SmartK ey.
R Press or pull there mo teoperating
switch on the driver's door.
R Press the closing or locking button
on the trunk lid.
R Press theto p of thest ar on the
trunk lid. Ve
hicles with HANDS-FREE ACCESS: It is also
possible tostop the closing process bymaking a Opening and closing
67

kicking mo
vement with your foot below there ar
bumper.
Yo u ha vethefo llowing options for closing the
trunk lid: #
Vehicles with trunk lid conv enience clos‐
ing feature: Press closing button 1onthe
trunk lid. #
Vehicles with trunk lid conv enience clos‐
ing feature and KEYLESS-GO: Press locking
button 2onthe trunk lid.
If a SmartK eyis de tected outside theve hicle,
th e trunk lid will close and theve hicle will be
loc ked. #
Vehicles with trunk lid conv enience clos‐
ing feature: Press trunk lid remo teoperating
switch 1. #
Vehicles with HANDS-FREE ACCESS: Make
a kicking mo vement with your foot below the
bumper (→ page 69).
Tr unk lid automatic reve rsing feature
If an object obstructs the trunk lid during the
automatic closing process, the trunk lid will
open again automaticall y.The automatic reve rs‐
ing feature is on lyan aid and is not a substitute
fo ryo ur attentiveness. #
When closing, make sure that no body parts
are in the closing area. &
WARNING Risk of becoming trapped
despi tethere ve rsing function
The reve rsing function does not react:
R tosoft, light and thin objects, e.g. fingers.
R overth e last 00C2in (8 mm) of the closing
path. 68
Opening and closing