2018 MERCEDES-BENZ S-CLASS SEDAN lock

#Vehicles with trunk lid co nvenience clos‐
ing: Press closing button 1inthe trunk lid.
#Ve hicles with trunk lid co nvenience clos‐
ing and KEYLESS-GO: Press locking button
2 inthe 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: move
yo ur foot in a kicking motion under the
bumper (
→page 69).
Au tomatic reve rsing function of the trunk lid
If an object restricts the trunk lid during the
automatic closing process, the trunk lid opens again automaticall
y.The automatic reve rsing
function is only an aid and is not a substitute for
yo 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.
#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.
68
Opening and closing

RPressthe closing or locking button
on the trunk lid.
RPull the trunk lid handle.
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 66)
and closing (→page 67)th e 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.
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.
Opening and closing 69

RThe kicking movement 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.
RWhen working on the trailer coupling, trailers
or rear bicycle rack s.
Deactivate KEYLESS-GO (
→page 59) or do not
car rythe SmartK eyabout your person insuch
situations.
Switch ing separate trunk locking on/off
Ifyo u centrally unlo cktheve hicle while separate
locking is activated, the trunk remains loc ked.
#To switch 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.
70 Opening and closing

Unlocking 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 60).
#Insert the mechanical keyin to the trunk lock
as far as it will go.
#Tu rn the mechanical keycounter-clockwise
from position 1toposition 2.
#Turn the mechanical keybac kto position 1
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:
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Ac tivating the function allo wsyouto av oid
bumping the trunk lid on a low garage ceiling, for
ex ample.
#Ac tivate Oor deacti vate ª the function.
Opening and closing 71

&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 pres sth e button in
order toreopen the side windo w.
&
WARNING Risk of becoming trapped
when children opera tethe side windo ws
Childr en could become trapped ifth ey oper‐
ate the side windo ws, particularly when unat‐
te nded.
#Ac tivate thech ild saf etyloc kfo rth e
re ar side wind ows.
#When leaving theve hicle, alw aysta ke
th e SmartK eywith you and lock the
ve hicle.
#Ne ver lea vechildren unatte nded inthe
ve hicle.
1Closes
2Opens
The buttons in the driver's door take prece‐
dence.
#To start automatic operation: press/pull
th eW button be yond the pressure point.
#To inter rupt automatic operation: press/
pull theW button again.
% Ve
hicles with electric roller sunblinds in
th e left and right rear doors: The buttons
fo rth ere ar side wind ows also open and
close thero ller sunblinds (
→page 72).
Au tomatic reve rsing function for the side
windo 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.
74
Opening and closing

ProblemPossible causes/consequences and MSolutions
If a side window is obstructed again during closing and reopens again slightly:
#Re peat the pr evious step.
The side window is closed without the automatic reve rsing function.
The side windo wscannot be opened or
closed using the con venience opening
fe ature. The SmartK
eybattery is dischar ged or nearly dischar ged.
#Check the battery using the battery check lamp and replace if necessary .
Sliding sunroof
Opening/closing the sliding sunroof
&
WARNING Risk of becoming trapped
while opening and closing the sliding
sunroof
During opening and closing, parts of the
body could getcaught in the sweep of the
sliding sunroof.
#When opening or closing, make sure
th at no body parts are in the sweep.
#Re lease the button immediately if
somebody becomes trapped.
or
#Press the button in any direction during
th e automatic opening/closing process.
The opening/closing process is stop‐
ped.
& WARNING Risk of becoming trapped if
th e sliding sunroof is operated bychil‐
dren
Children operating the sliding sunroof could
get caught in the moving parts, particularly if
unattended.
#Ne ver lea vechildren unatte nded inthe
ve hicle.
#When leaving theve hicle, alw aysta ke
th eke ywit hyo u and lock theve hicle.
&
WARNING Risk of becoming trapped
while opening and closing thero ller sun
blind
When opening or closing, make sure that no
body parts become trapped between the
ro ller sun blind and frame or the sliding sun‐
ro of.
Opening and closing 77

Anti-theft protection
Fu nction of the immobilizer
The immobilizer pr events your vehicle from being
st ar ted without the cor rect SmartK ey.
The immobilizer is automatically activated when
th e ignition is switched off and deactivated when
th e ignition is switched on.
When leaving theve hicle, alw aysta ke the Smart‐
Ke ywit hyo u and lock theve hicle. An yone can
st art the engine if a valid SmartK eyhas been left
inside theve hicle.
% Ifth eeve ntthat the engine cannot bestar‐
te d (y ettheve hicle's battery is charge d), the
sy stem is not operational. Contact an
authorized Mercedes-Benz Center or call
1-800-FO R-MERCedes (in the USA) or
1-800-387-0 100 (in Canada).
ATA (anti-theft alarm system)
Fu nction of theATA system (anti-theft ala rm
sy stem)
If th eATA system is armed, a visual and audible
alarm is triggered in thefo llowing situations:
RA door is opened.
RThe trunk lid is opened.
RThe hood is opened.
The ATA sy stem is armed automatically af ter
appr oximately 10seconds:
RAfter locking theve hicle with the SmartK ey.
RAf ter locking theve hicle using KEYLESS-GO.
When theATA system is armed, indicator lamp
1 flashes.
The ATA sy stem is automatically deactivated:
RAf ter unlocking theve hicle with the Smart‐
Ke y.
RAfter pressing thest art/ stop button with the
SmartK eyinside theve hicle.
86
Opening and closing

RAfter unlocking theve hicle using KEYLESS-
GO.
% When the mbrace service (
→page 329) is
active and the alarm stay s on for more than
30 seconds, a message is automatically sent
to the Cus tomer Assis tance Center.
Deacti vating the ATA(anti-theft alarm sys‐
te m) ala rm
#Pressthe%, &orp button on the
SmartK ey.
or
#Press thest art/ stop button (the SmartK eyis
inside theve hicle).
St opping the ala rmusing KEYLESS-GO
#Grasp the outside door handle (with the
SmartK eyoutside theve hicle).
Opening and closing 87