2020 MERCEDES-BENZ S-CLASS SALOON LONG key

The additional door lock is automatically activa‐
te d in thefo llowing situations:
R The vehicle is loc ked using thekey.
R The vehicle is loc ked using KEYLESS-GO.
If th eve hicle has been loc ked via Mercedes me
connect, the additional door lock is not activa‐
te d.
If th e additional door lock is activated, the doors
cann otbe opened from the inside.
% After locking you can issue a signal with the
horn.
Yo u can pr eventthe additional door lock from
being activated bydeactivating interior pr otec‐
tion before locking theve hicle (/ page106). Un
locking/opening the doors from the inside #
United Kingdom onl y:obser vethe no tes on
th e additional door lock (/ page81). #
Pull door handle 1. Centrally locking and unlocking
theve hicle
from the inside #
Tounlo ck:press button 1. #
Tolock: press button 2.
The red indicator lamp on button 2lights
up once theve hicle is loc ked.
% The buttons are also on there ar doors.
This does not lock or unlo ckthe fuel filler flap. 82
Opening and closing

The
vehicle is not unloc ked:
R Ifyo u ha veloc kedth eve hicle using thekey.
R Ifyo u ha veloc kedth eve hicle using KEY‐
LESS-GO. Locking/unlocking
theve hicle with KEY‐
LESS-GO Re
quirements:
R The key is outside theve hicle.
R The dis tance between theke y and theve hicle
does not exceed 1 m.
R The driver's door and the door at which the
door handle is used are closed.
In thefo llowing cases, the door handles are
ex tended:
R when theve hicle is unloc ked
R when theve hicle key is de tected
R when a door is opened
In thefo llowing cases, the door handles are
re tracted:
R when theve hicle is loc ked R
when pulling away
R afte rwa iting for a time
* NO
TEDama getotheve hicle caused by
unin tentionally opening the boot lid or a
door R
when using an automatic car wash
R when using a high pressure cleaner #
Deactivate theke y functions in these
situations.
or #
Make sure that theke y is at a minimum
dis tance of 3 m (high-pressu recleaner)
or 6 m (automatic car wash) away from
th eve hicle. Obser
vethefo llowing information:
R Information on washing theve hicle in a car
wa sh (/ page 353)
R Information on using a high-pressure cleaner
(/ page 354) #
Tounlo cktheve hicle: touch the inner sur‐
fa ce of door handle 1. Opening and closing
83

%
Ifth e door handle is not extended, touch
sensor sur face 2 tounlo ck. #
Tolock theve hicle: touch recessed sensor
su rface 3. #
Con venience closing: touch recessed sen‐
sor su rface 3for an extended pe riod.
% Further information on con venience closing
(/ page 95). Problems with
KEYLESS-GO, troubleshooting Yo
u can no lon ger lo ckor unlock theve hicle
using KEYLESS-GO
Po ssible causes:
R The key functions ha vebeen deactivated.
R The key bat tery iswe ak or dischar ged. #
Activate theke y functions (/ page78). #
Check the battery using the indicator lamp
(/ page 77). #
Replace theke y bat tery, if necessary
(/ page 79). #
Use there placement key. #
Use the emer gency keyto lock or unlock
(/ page 85). #
Have theve hicle and keych ecked at a quali‐
fi ed specialist workshop.
There is inter fere nce from a po werful radio
signal source.
The KEYLESS-GO function is impaired by,for
ex ample:
R high voltage po wer lines R
mobile phones
R electronic devices (no tebooks, tablets)
R shielding due tome tal objects or induction
loops for electrical gate systems or auto‐
matic bar riers #
Make sure that there is suf ficient di stance
between theke y and the po tential sou rce of
inter fere nce. Ac
tivating or deactivating the automatic
lo ck ing feature Multimedia sy
stem:
4 © 5
Settings 5
Vehicle
5 Locking function
% The vehicle is loc ked automatically when the
ignition is switched on and the wheels are
turning faster than walking pace. #
Activate or deacti vate Automatic locking .
In thefo llowing situations, there is a danger of
being loc ked out when the function is activated:
R while theve hicle is being tow- star ted or
pushed 84
Opening and closing

R
ifth eve hicle is being tested on a roller dyna‐
mome ter Po
we r closing function &
WARNING Risk of becoming trapped
when the doors close automatically
Body parts or objects can become trapped,
causing injuries. #
Ensure that no body parts or objects
are in the closing area. #
Automatic closing of the doors can be
cancelled bypulling the outer or inner
door handle. If
yo u push the door into the lock tothefirst
de tent position, the po wer closing function will
auto matical lypull the door into the loc k.
% Ifth eve hicle is loc ked from the outside, or
while pulling away, an automatic closing of
th e doors can be triggered. Locking/unlocking
theve hicle with the
emer gency key Un
locking a left-hand vehicle door with the
emer gency key element
Ve hicles without KEYLESS-GO #
Remo vethe emer gency key ( / page 79). #
Pull and hold the door handle. #
Tounlo ck:insert the emer gency key in tothe
lock cylinder. #
Turn the emer gency key anti-clo ckwise to
position 1. #
Remo vethe emer gency key and release the
door handle.
Ve hicles with KEYLESS-GO #
Remo vethe emer gency key ( / page 79). Opening and closing
85

#
Ifth e door handle is retracted: pressthe
front area of door handle 1.
The door handle folds slightly outward. #
Pull and hold the door handle. #
Ifth e door handle is extended: slightly pull
and hold the door handle. #
Tounlo ck:insert the emer gency key in tothe
lock cylinder. #
Turn the emer gency key anti-clo ckwise to
position 1. #
Remo vethe emer gency key and release the
door handle. Locking
the doors #
Insert a suitable object, e.g. the emer gency
ke y,into opening 1onthe door loc k. #
Tolock the left-hand side of theve hicle:
turn the emer gency key clo ckwise as far as it
will go. 86
Opening and closing

#
Tolock theright-hand side of theve hicle:
turn the emer gency key anti-clo ckwise as far
as it will go.
If th e loc ked door is then closed, it can no longer
be opened from the outside. Boot
Opening
the boot 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
boot lid is open when the engine is running,
especially if theve hicle is in motion. #
Alw ays switch off the engine before
opening the boot lid. #
Never drive with the boot lid open. *
NO
TEDama getothe boot lid byobs ta‐
cles ab ovetheve hicle The boot lid swings upwards when it is
opened.
#
Therefore, make sure that there is suf fi‐
cient clearance ab ovethe boot lid. #
Pull the boot lid handle. #
Vehicles with HANDS-FREE ACCESS: make
a kicking mo vement with your foot below the
bumper (/ page 90). Ve
hicles with boot lid conv enience closing #
Pull boot lid remo teoperating switch 1. #
Press and hold theH button on thekey. #
Ifth e boot lid is stopped in an intermediate
position, pull it upwards. Release it as soon
as it begins toopen.
Wi th th e boot lid opening limiter activated,
manually pull thestopped boot lid upwards. Opening and closing
87

If an obs
tacle obstructs the boot lid during the
automatic opening process, bloc kage detection
will stop the boot lid. The automatic bloc kage
de tection function is only an aid and is not a
substitu teforyo ur attentiveness. Closing
the boot 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. Note
on closing the boot lid: your vehicle is
equipped with automatic keyre cognition. If a key
belonging totheve hicle is de tected in theve hi‐
cle, the boot lid will not be loc ked.
This depends on thefo llowing conditions:
R You ha veclosed the boot lid and theve hicle
wa s loc ked beforehand.
R A second key belonging totheve hicle is not
de tected outside theve hicle.
The boot lid will then not be loc ked and will pop
open again.
Au tomatic keyre cognition is only an aid and is
not a substitu teforyo ur attentiveness. #
Before locking, ensure that at least one key
belonging totheve hicle is outside theve hi‐
cle. #
Pull the boot lid down wards using the handle
re cess and push it closed.
% Ifyo u light lypush the boot lid closed, the
po we r closing function will auto maticallypull
th e boot lid into the loc k. Ve
hicles with boot lid conve nience closing &
WARNING Risk of becoming trapped
du ring au tomatic closing of the boot lid
Pa rts of the body could become trapped.
There may be people in the closing area. #
Make sure that nobody is in the vicinity
of the closing area. #
Use one of thefo llowing options tostop
th e closing process:
R Press theH button on thekey.
R Press or pull there mo teoperating
switch on the driver's door.
R Press the closing or locking button
on the boot lid.
R Pull the boot lid handle. #
Vehicles with HANDS-FREE ACCESS: it is
also possible tostop the closing process by
making a kicking mo vement below there ar
bumper. #
Pull the boot lid handle. Release it as soon as
it begins toclose. 88
Opening and closing

#
Ifth e boot lid is stopped in an intermediate
position, push it down wards.
The boot lid will continue toclose. #
Press boot lid remo teoperating switch 1. #
Press closing button 1onthe boot lid.
Ve hicles with KEYLESS-GO #
Press locking button 2onthe boot lid.
If a key is de tected outside theve hicle, the
boot lid will close and theve hicle will be
loc ked. #
With th e boot lid comple tely open, press and
hold theH button on thekey. Thekey
must be in the vicinity of theve hicle.
Ve hicles with HANDS-FREE ACCESS #
With th e boot lid comple tely open, make a
kicking mo vement with your foot below the
bumper (/ page 90).
Boot lid automatic reve rsing function
The boot lid is fitted wi thautomatic bloc kage
de tection wi thare ve rsing function. If an obs ta‐
cle obstructs the boot lid during the automatic
closing process, it will automatically open again.
The automatic reve rsing function is only an aid
and is not a substitute foryo ur attentiveness. #
During the closing process, make sure that
no body parts are in the closing area. &
WARNING Risk of becoming trapped
despi tereve rsing function
The reve rsing function will not react:
R tosoft, light and thin objects, e.g. fingers
R towa rdsth e end of the closing procedure Opening and closing
89