MERCEDES-BENZ S-CLASS SALOON LONG 2021 Owners Manual

K
K
e
ey
y Ov
Ov
er
ervie
vie w of ke
w of key functions
y functions &
W
WARNING
ARNING Risk of accident and inju rydue
to leaving children unattended in theve hi-
cle
If ch ildren are leT unattended in theve hicle,
th ey could, in particular:
R open doors, thereby endangering other
persons or road users.
R get out and be struck byoncoming tra1c.
R operate vehicle equipment and become
trapped, forex ample.
In addition, thech ildren could also set the
ve hicle in motion by,fo rex ample:
R releasing the parking brake.
R changing the transmission position.
R starting theve hicle. #
Never lea vechildren unattended in the
ve hicle. #
When leaving theve hicle, alw aysta ke the
ke y with you and lock theve hicle. #
Keep theve hicle key out of there ach of
ch ildren. *
N
NOOTE
TE Damage totheke y caused bymag-
netic /elds #
Keep theke yaw ay from strong magnetic
/elds. Ve
hicle key
1 Indicator lamp
2 Locks 3
Unlo cks (with embossed sur face)
4 Opens/closes the boot lid
% If indicator lamp 1does not light up aTer
pressing theÜ ors button, the battery
is we ak or possibly dischar ged. Re place the
battery as soon as possible.
Re place theke y battery (/ page 90).
The key loc ksand unloc ksthefo llowing compo-
nents:
R Doors
R Fuel /ller 0ap
R Soc ket 0ap (plug-in-hybrid)
R Boot lid
If th eve hicle is not opened within appr oximately
40 seconds aTer unlocking, it loc ksagain. Anti-
th eT pr otection is primed again.
Do not keep theke yto get her with elect ronic devi-
ces or me tal objects. This can a.ect theke y's
functionalit y. 88 88
Opening and closing

Indicat
Indicat
or lam
or lamp of t
p of the v
he vehicle loc
ehicle loc king syst
king system
em Indicator lamp
1inthe trim on the driver's side
0ashes when theve hicle is loc ked from outside.
In thefo llowing cases, indicator lamp 1remains
o.:
R when theve hicle is loc ked from inside
R whilst driving A
A
ctiv
ctiv ating/deactiv
ating/deactiv ating t
ating the acous
he acoustic loc tic locking
kingv
ver
er i/-
i/-
cation
cation signal
signal Multimedia system:
4 © 5
Settings 5
Vehicle
5 Open/close #
Activate or deactivate theAcoustic lock.
% Please observ
Please observ e:
e:
The selected setting forth e acoustic locking
ve ri/cation signal must comply with there le-
va nt national road and tra1c regulations. In
some countries, including German y,using the
acoustic locking veri/cation signal is forbid-
den bytra1c la ws(in accordance with §16
Pa ra. 1 and §30 Para. 1 of the German
national road tra1c regulations). The driver of
th eve hicle must comply with these regula-
tions. In countries where the use of this func-
tion is forbidden, this function is not activated
in theve hicle and must not be activated. Changing t
Changing t
he unloc
he unlocking se
king settings
ttings Po
ssible unlocking functions of theke y:
R Central unlocking R
Unlocking the driver's door and fuel /ller 0ap
R Plug-in h
Plug-in h ybr
ybrid:
id:unlocking the driver's door and
fuel /ller 0ap/soc ket0 ap #
T
To switc
o switc h be
h betw
tween se
een se ttings:
ttings: presstheÜ
and s buttons simultaneously for appr ox-
imately six seconds until the indicator lamp
0ashes twice.
Options if the unlocking function forth e driver's
door and fuel /ller 0ap has been selected:
R T
To unloc
o unloc k t
k the v
he v ehicle centr
ehicle centr ally:
all y: press the
Ü button twice.
R V
Vehicles wit
ehicles wit h KEYLESS-GO:
h KEYLESS-GO: ifyo uto uch the
inner sur face of the door handle on the driv-
er's door, only the driver's door and the fuel
/ller 0ap are unloc ked.
Options if the unlocking function forth e driver's
door and fuel /ller 0ap/soc ket0 ap has been
selected (plug-in-hybrid):
R T
To unloc
o unloc k t
k the v
he v ehicle centr
ehicle centr ally:
all y: press the
Ü button twice.
R V
Vehicles wit
ehicles wit h KEYLESS-GO:
h KEYLESS-GO: ifyo uto uch the
inner sur face of the door handle on the driv- Opening and closing
89
89

er's door, only
the driver's door and the fuel
/ller 0ap/soc ket0 ap are unloc ked. Deactiv
Deactiv
ating t
ating the function of t
he function of t hekey
he key V
V
ehicles wit
ehicles wit h KEYLESS-GO:
h KEYLESS-GO: ifyo u deactivate the
function of theke y,the KEYLESS-GO functions are
also deactivated. Access or drive authorization by
KEYLESS-GO is then no longer possible with that
particular key.Activate the function of theke y so
th at all its functions will again be available.
Yo u can also deactivate the function of theke yto
re duce the energy consum ption of theke y if you
do not use theve hicle or a keyfo r an extended
period of time. #
T
To deactiv
o deactiv at
ate:
e: press thes button on the
ke y twice in quick succession.
The key indicator lamp 0ashes twice brie0y
and lights up once. #
T
To activ
o activ at
ate:
e: press any but ton on thekey.
% When theve hicle is star ted with theke y in the
st ow age compartment of the centre console,
th e function of theke y is automatical lyactiva-
te d (/ page 212). R
R
emo
emo ving/inser
ving/inser ting t
ting the emerg
he emerg encykey
ency key R
R
emo
emo ving t
ving t he emerg
he emerg encykey
ency key #
Press release button 1.
Emer gency key2 is pushed out slightl y. #
Fully remo veemer gency key2. Inser
Inser
ting t
ting t he emerg
he emerg encykey
ency key #
Insert emer gency key2 at marking 3until
it en gage s.
% You can use emer gency key2 toattach the
ke yto ake yring. R
R
eplacing t
eplacing t heke
he key batt
y batt ery
ery &
D
DAN
AN GER
GER Risk of fatal injuries if batteries
are swallo wed
Batteries contain toxic and cor rosive subs tan-
ces. Swallow ing batteries may cause se vere
internal burns within two hours. 90
90
Opening and closing

There is a
risk of fatal injur y. #
Keep batteries out of there ach of chil-
dren. #
Ifth e co ver and/or lid of the battery
compartment does not close securel y,
do not use theke y and keep it away from
ch ildren. #
If batteries are swallo wed, seek medical
attention immediatel y.+
ENVIR
ENVIR
ONMENT
ONMENT AL NO
AL NOTE
TEEnvironmen tal
damage due toimproper disposal of bat-
te ries Batteries contain pollutants. It is
illegal todispose of them with the household
ru bbish. #
Dispose of batteries in an
environmentally responsible manner. Ta
ke dischar ged batteries toaqu ali/ed
specialist workshop or toa collection
point for used batteries. R
R
eq
eq uir
uir ements:
ements:
R Youre qu ire a CR 2032 3 V cell batter y.
Mercedes-Benz recommends that you ha vethe
battery replaced at a quali/ed specialist work-
shop. #
Remo vethe emer gency key (/ page 90). #
Press emer gency key2 into the opening in
th eke y in the direction of the arrow until co
ver1 opens. When doing so, do not hold
co ver1 closed. #
Insert emer gency key2 into the opening and
liT up co vering 3 and remo veit. #
Repeatedly tapth eke y again styour palm until
battery 4falls out of thekey. #
Insert the new battery with the positive pole
fa cing upwards. Use a lint-f ree clo thtodo so. #
Make sure that the sur face of the battery is
free of lint, grease and other impurities. #
Insert the front tabs of co vering 3 into the
housing and then press on bo thsides toclose
it. Opening and closing
91
91

#
Make sure that co vering 3 is comple tely
closed. #
Insert the front tabs of co ver1 into the
housing and then press until it is comple tely
closed. #
Insert the emer gency key again (/ page 90). Pr
Pr
oblems wit
oblems wit h t
h the key
he key , tr
, troubleshoo
oubleshoo ting
ting Y
Y
ou can no long
ou can no long er loc
er lock or unloc
k or unloc k t
k the v
he v ehicle
ehicle
Po ssible causes:
R The key battery is weak or dischar ged. #
Check the battery using the indicator lamp
(/ page 88). #
Replace theke y batter y,if necessary
(/ page 90). #
Use there placement key. #
Use the emer gency keyto lock or unlock
(/ page 96). #
Have theke ych ecked at a quali/ed specialist
wo rkshop. Ther
Ther
e is int
e is int erf
erfer
erence fr
ence fr om a pow
om a pow er
erful r
ful r adio signal
adio signal
sour
sour ce
ce
Po ssible causes if the function of theke y is
impaired:
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 automatic
bar riers #
Make sure that there is su1cient distance
between theke y and the po tential sou rce of
inter fere nce.
Y
Y ou hav
ou hav e los
e lost a key
t a key #
Have theke y deactivated at a quali/ed spe-
cialist workshop. #
If necessar y,ha ve the mechanical lock
re placed as well. Doors
Doors
N
No
ot
tes on t
es on t he additional door lock
he additional door lock The additional door lock is only
available forve hi-
cles forth e United Kingdom. &
W
WARNING
ARNING Risk of injury topersons inside
th eve hicle when the additional door lock
is activated
If th e additional door lock is activated, the
doors can no longer be opened from the
inside. #
Never lea vepersons, in particular chil-
dren, unattended in theve hicle. #
Ifth ere are persons in theve hicle, do not
activate the additional door loc k. The additional door lock is automatically activated
in
thefo llowing situations:
R The vehicle is loc ked using thekey.
R The vehicle is loc ked using KEYLESS-GO. 92 92
Opening and closing

If
th eve hicle has been loc ked via Mercedes me
connect, the additional door lock is not activated
(/ page 404).
If th e additional door lock is activated, the doors
cannot be opened from the inside.
% ATer locking you can issue a signal with the
horn.
Yo u can pr event the additional door lock from
being activated bydeactivating interior pr otection
before locking theve hicle (/ page 117). U
Unloc
nloc king/opening t
king/opening t he door
he doors fr
s from t
om t he inside
he inside #
U
Unitnit ed Kingdom only
ed Kingdom only :
:obser vethe no tes on
th e additional door lock (/ page 92). #
Pull door handle 1. Centr
Centr
all
ally loc
y loc king and unloc
king and unloc king t
king the v
he vehicle fr
ehicle fr om
om
t
t he inside
he inside #
T
To unloc
o unloc k:
k:press button 1. #
T
To loc
o loc k:
k: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 unlock the fuel /ller 0ap. Opening and closing
93
93

Plug-in h
Plug-in h
ybr
ybrid:
id:the soc ket 0ap is also loc ked and
unloc ked. The soc ket 0ap can be opened even if a
ke y is de tected in the car.
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 KEYLESS-
GO Loc
Loc
king/unloc
king/unloc king t
king the v
he vehicle wit
ehicle wit h KEYLESS-GO
h KEYLESS-GO R
R
eq
eq uir
uir ements:
ements:
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 on which the
door handle is used are closed.
The door handles are extended when:
R theve hicle is unloc ked
R theve hicle key is de tected
R a door is opened
The door handles retract:
R when theve hicle is loc ked R
when pulling away
R aTer waiting for a time
* N
NOOTE
TE Damage totheve hicle caused by
unintentionally opening the boot lid or a
door R
when using an automatic car wash
R when using a high pressure cleaner #
Deacti vate the function of theke y in
th ese situations.
or #
Make sure that theke y is at a minimum
dis tance of 3 m (high-p ressure cleaner)
or 6 m (automatic car wash) awa y from
th eve hicle. Obser
vethe no tes:
R onwashing theve hicle in a car wash
(/ page 429)
R on using a high pressure cleaner
(/ page 430) #
T To unloc
o unloc k t
k the v
he v ehicle:
ehicle: touch the inner sur face
of door handle 1.94
94
Opening and closing

%
Ifth e door handle is not extended, touch sen-
sor sur face 2 tounloc k. #
T
To loc
o loc k t
k the v
he v ehicle:
ehicle: touch recessed sensor
sur face 3. #
Conv
Conv enience closing:
enience closing: touch recessed sensor
sur face 3 for an extended period.
% Further information on con venience closing
(/ page 107). Pr
Pr
oblems wit
oblems wit h KEYLESS-GO, tr
h KEYLESS-GO, tr oubleshoo
oubleshooting
ting Y
Y
ou can no long
ou can no long er loc
er lock or unloc
k or unloc k t
k the v
he v ehicle using
ehicle using
KEYLESS-GO
KEYLESS-GO
Po ssible causes:
R The function of theke y has been deactivated.
R The key battery is weak or dischar ged. #
Activate the function of theke y (/ page 90). #
Check the battery using the indicator lamp
(/ page 88). #
Replace theke y batter y,if necessary
(/ page 90). #
Use there placement key. #
Use the emer gency keyto lock or unlock
(/ page 96). #
Have theve hicle and keych ecked at a quali-
/ed specialist workshop.
Ther Ther e is int
e is int erf
erfer
erence fr
ence fr om a pow
om a pow er
erful r
ful r adio signal
adio signal
sour
sour ce
ce
Po ssible causes if the function of KEYLESS-GO is
impaired:
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 automatic
bar riers #
Make sure that there is su1cient distance
between theke y and the po tential sou rce of
inter fere nce. A
A
ctiv
ctiv ating or deactiv
ating or deactiv ating t
ating the aut
he automatic loc
omatic loc king
king
f
f eature
eature Multimedia system:
4 © 5
Settings 5
Vehicle
5 Locking function
% The vehicle is loc ked automatically when the
ve hicle is switched on and the wheels are
turning faster than walking pace. #
Activate or deactivate Automatic locking.
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 or pushed. Opening and closing
95
95

R
Ifth eve hicle is being tested on a roller dyna-
mome ter. P
P
o
ow
w er closing function
er closing function &
W
WARNING
ARNING Risk of becoming trapped when
th e 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 tothe /rst
de tent position, the po wer closing function will
automatically pull the door into the loc k.
% Ifth eve hicle is loc ked from the outside, or
while pulling away,an automatic closing of the
doors can be triggered. Loc Loc
king/unloc
king/unloc king t
king the v
he vehicle wit
ehicle wit h t
h the emer-
he emer-
g
g ency key
ency key U
U
nloc
nloc king a
king a leT-hand
leT-hand v
vehicle door wit
ehicle door wit h t
h the emer-
he emer-
g
g ency ke
ency key element
y element
V
V ehicles wit
ehicles wit hout KEYLESS-GO
hout KEYLESS-GO #
Remo vethe emer gency key (/ page 90). #
Pull and hold the door handle. #
Insert the emer gency key in tothe lock cylin-
der. #
Turn the emer gency key anti-clockwise to
position 1. #
Turn the emer gency key back toits starting
position. #
Remo vethe emer gency key and release the
door handle.
V
V ehicles wit
ehicles wit h KEYLESS-GO
h KEYLESS-GO #
Remo vethe emer gency key (/ page 90). 96
96
Opening and closing

If
th e door handle is retracted: #
Inse rta 0at, non-me tallic object behind door
handle 1from abo veand pry it slightly out-
wa rd. #
Reach behind door handle 1from belo w,pull
it outward tothe pressure point and hold it
th ere. If
th e door handle is extended: #
Pull door handle 1outward tothe pressure
point and hold it there. #
Insert the emer gency key in tothe lock cylin-
der. #
Turn the emer gency key anti-clockwise to
position 1. #
Forcefully pull door handle 1outward past
th e pressure point. #
Remo vethe emer gency key and release the
door handle.
Loc
Loc king t
king t he doors
he doors #
Insert a suitable object, e.g. the emer gency
ke y,into opening 1onthe door loc k. Opening and closing
97
97