2018 MERCEDES-BENZ S-CLASS COUPE Owner's Manual

Ifyo u open the trunk lid from outside, the trunk
lid is automatically unloc ked.
Problems with KEYLESS-GO
Problem
Possible causes/consequences and MSolutions
Yo u can no longe r lock or unlock the
ve hicle using KEYLESS-GO. Po
ssible causes:
RThe SmartK eybattery is dischar ged or nearly dischar ged.
RThere is inter fere nce from a po werful radio signal source.
RThe SmartK eyis defective.
#Check the battery using the battery check lamp and replace if necessary .
#Use the mechanical keyto lock or unlock theve hicle .
#Ha ve 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.
Opening and closing 63

#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

#Release the door handle.
#Tu rn the mechanical keyanti-clo ckwise to
position 1.
#Carefully press the co ver onto the lock cylin‐
der until it engages and is seated firm ly.
Tr unk
Opening the trunk lid
&
WARNING Risk ofexhaust 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.
#Ne ver 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 toopen the trunk
lid:
#Wi th th e trunk lid unloc ked, press theto p of
th est ar.
#Pull thefo lded-out star when there ar view
camera is activated and the trunk lid is
unloc ked.
% Toopen the trunk lid, pull on thefo lded-out
st ar when there ar view camera is activated.
#Press and hold thep button on the
SmartK ey.
Opening and closing 65

#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

your foot in a kicking motion under there ar
bumper.
Yo u ha vethefo llowing options toclose the trunk
lid:
#Ve hicles with trunk lid co nvenience clos‐
ing: Press closing button 1onthe trunk lid.
#Ve hicles with trunk lid co nvenience clos‐
ing and KEYLESS-GO: Press locking button
2 onthe trunk lid.
If a SmartK eyis de tected outside theve hicle,
th e trunk lid closes and theve hicle is loc ked.
#Ve hicles with trunk lid co nvenience clos‐
ing: Press trunk lid remo teoperating switch
1.
#Ve hicles with HANDS-FREE ACCESS: Make
a kicking mo vement below the bumper
(
→page 68).
Au tomatic reve rsing function of the trunk lid
If an object obstructs the trunk lid during the
automatic closing process, the trunk lid opens
again automaticall y.The automatic reve rse func‐
tion 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.
&
WARNING Risk of becoming trapped
despite there ve rsing function
The reve rsing function does not react:
Rto soft, light and thin objects, e.g. fingers.
Rove rth e last Óin (8 mm) of the closing
path.
In these situations in particular, there ve rsing
function cannot pr event someone being trap‐
ped.
Opening and closing 67

#When closing, make surethat no body
parts are in the closing area.
#If someone is trapped, use one of the
fo llowing options:
RPress thep button on the
SmartK ey.
RPress 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.
HANDS-FREE ACCESS function
With HANDS-FREE ACCESS you can open, close
or inter rupt trunk lid mo vement byper form ing a
kicking mo vement under there ar bumper.
The kicking mo vement triggers the opening or
closing process alternately.
Obser vethe no tes when opening (
→page 65)
and closing (→page 66) the trunk lid. %
Awa rning tone sounds while the trunk lid is
opening or closing.
& WARNING Risk of burn s causedbya hot
ex haust sy stem
The vehicle exhaust sy stem can become very
hot. If you use HANDS- FREEACCESS, you
could burn yourself by touching theex haust
sy stem.
#Alw ays ensure that you only ma kea
kicking mo vement within the de tection
ra nge of the sensors.
* 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.
68 Opening and closing

When makingthe 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

#Toswitch on: slidethe switch toposition
2.
#To switch off: slidethe switch toposition
1.
% If an accident has been de tected, the trunk
unloc kseve n if separate lo cking is switched
on.
Un locking the trunk with the emer gency
re lease from inside
Re quirements:Rthe12 Vve hicle battery is connected and
ch arge d.
#Press emer gency release button 1brief ly.
The trunk lid unloc ksand opens.
Un locking the trunk lid using the mechanical
ke y
#Take the mechanical keyout of the SmartK ey
(→page 59).
#Press theto p of thest ar 1.
70
Opening and closing