keyless MERCEDES-BENZ S-CLASS SALOON LONG 2020 Owners Manual

Indicator lamp of
theve hicle locking sy stem Indicator lamp
1inthe trim on the driver's side
fl ashes when theve hicle is loc ked from outside.
Indicator lamp 1remains off if theve hicle is
loc ked from inside or while theve hicle is in
motion. Ac
tivating/deactivating the acoustic lo cking
ve rification signal Multimedia sy
stem:
4 © 5
Settings 5
Vehicle
5 Opening/closing #
Activate or deacti vate Acoustic lock .
% Please no
te:
The selected setting forth e acoustic locking
ve rification signal must comply wi th there le‐
va nt national road and traf fic re gulations. In
some countri es, including German y,using
th e acoustic locking verification signal is for‐
bidden bytraf fic la ws(in accordance with
§16 Para. 1 and §30 Para. 1 of the German
national road traf fic re gulations). The driver
of theve hicle must comply with these regu‐
lations. In countri es wherethe use of this
function is forbidden, this function is not
activated in theve hicle and must not be acti‐
va ted. Changing
the unlocking settings Po
ssible unlocking functions of theke y:
R Central unlocking
R Unlocking the driver's door and fuel filler flap #
Toswitch between settings: pressthe
Ü ands buttons simultaneously for
appr oximately six seconds until the indicator
lamp flashes twice.
Options if the unlocking function forth e driver's
door and fuel filler flap has been selec ted:
R Tounlo cktheve hicle centrall y:press the
Ü button twice.
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 function of thekey Ve
hicles with KEYLESS-GO: ifyo u deactivate
th e function of theke y,the KEYLESS-GO func‐
tions are also deactivated. Access or drive
au thorization byKEYLESS-GO is then no longer 78
Opening and closing

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

%
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 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

process and make sure
that no body
parts are in the closing area. #
Press and hold thes button on thekey.
The following functions are per form ed:
R The vehicle is loc ked.
R The side windo wsare closed.
R The pano ramic sliding roof is closed. #
Tointer rupt convenience closing: release
th es button. #
Tocontinue con venience closing: press
and hold thes button again.
% Con venience closing also functions wi th
KEYLESS-GO (/ page 83). Re
solving problems with the side windo ws &
WARNING Risk of becoming trapped or
fa ta lly injured if reve rsing pr otection is
not activated
If yo u close a side wind owagain immediately
af te r it has been bloc ked, the side window
will close with increased or maximum forc e.
The reve rsing function is then not active and
body parts may become trapped. #
Make sure that no parts of the body are
in the closing area. #
Tostop the closing process, release the
button or press the button again to
re open the side windo w. A side wind
owcann otbe closed and you can‐
not see the cause. #
Check tosee whe ther any objects are in the
window guide. #
Adjust the side windo ws.
Ad justing the side windo ws If a side window is obstructed during closing and
re opens again immediately: #
Immediately af terth is, pull and hold the cor‐
re sponding button again until the side win‐
dow has closed and hold the button for at
least one more second (re-adjustment).
The side window will be closed without the
automatic reve rsing function.
If th e side window is obstructed again and
re opens again immediately: #
Immediately af terth is, pull and hold the cor‐
re sponding button again until the side win‐
dow has closed and hold the button for at
least one more second (follo w-up adjust‐
ment).
The side wind owwill be closed without the
automatic reve rsing function.
The side windo wscann otbe opened or
closed using the con venience opening fea‐
ture.
Po ssible cause:
R The key bat tery iswe ak or dischar ged. 96
Opening and closing

#
Toextend: pull switch 1. #
Toretract: press switch 1.
When thech ild saf ety lock forth ere ar side win‐
do ws is activated, switch 1cannot be oper‐
ated. Anti-
theft pr otection Fu
nction of the immobiliser The immobiliser pr
events your vehicle from
being star ted without the cor rect key.
The immobiliser is automatically activated when
th e ignition is switched off and deactivated when
th e ignition is switched on. ATA
(Anti-Theft Alarm sy stem) Fu
nction of theATA system
If th eATA system is primed, a visual and audible
alarm is triggered in thefo llowing situations:
R when a door is opened
R when the boot lid is opened
R when the bonn etis opened
R when interior pr otection is triggered
(/ page 105)
R when tow- aw ay protection is triggered
(/ page 105) The
ATA system is primed automatically af ter
appr oximately ten seconds in thefo llowing situa‐
tions:
R afte r locking theve hicle with thekey
R afte r locking theve hicle using KEYLESS-GO Indicator lamp
1flashes when theAT A sy stem
is primed. 104
Opening and closing

The
ATA sy stem is deactivated automatically in
th efo llowing situations:
R afte r unlocking theve hicle with thekey
R afte r unlocking theve hicle using KEYLESS-
GO
R afte r pressing thest art/ stop button with the
ke y in thestow age compartment
(/ page 189)
% When the Mercedes‑Benz emer gency call
sy stem is active and the alarm stay s on for
more than 30 seconds, a message is auto‐
matically sent tothe Cus tomer Assis tance
Centre (/ page 335).
Deactivating theATA #
Press theÜ, sorH button on the
key.
or #
Press thest art/ stop button with theke y in
th estow age compartment (/ page189)
Deactivating the ala rmusing KEYLESS-GO #
With th eke y outside theve hicle, touch the
inner sur face of the door handle. Fu
nction of tow- aw ay protection An audible and visual alarm is triggered if an
alteration
to yourvehicle's angle of inclination is
de tected while tow- aw ay protection is primed.
To w- aw ay protection is automatically primed
af te r appro ximately 60 seconds:
R afte r locking theve hicle with thekey
R afte r locking theve hicle using KEYLESS-GO
To w- aw ay protection is only primed when thefo l‐
lowing components are closed:
R doors
R boot lid
To w- aw ay protection is automatically deactiva‐
te d:
R afte r pressing theÜ orH button on
th ekey
R afte r pressing thest art/ stop button with the
ke y in thestow age compartment
(/ page 189)
R afte r unlocking theve hicle using KEYLESS-
GO R
when using HANDS-FREE ACCESS
In fo rm ation on collision de tection on a pa rked
ve hicle (/ page217). Priming/deactivating
tow- aw ay protection Multimedia sy
stem:
4 © 5
Settings 5
Vehicle
5 Opening/closing 5
Vehicle protection #
Prime or deactivate Tow-away protection .
To w- aw ay protection is primed again in thefo l‐
lowing cases:
R The vehicle is unloc ked again.
R A door is opened.
R The vehicle is loc ked again. Fu
nction of interior pr otection When interior pr
otection is primed, a visual and
audible alarm is triggered if mo vement is de tec‐
te d in theve hicle interior. Opening and closing
105

Interior pr
otection is primed automatically af ter
appr oximately ten seconds:
R afte r locking theve hicle with thekey
R afte r locking theve hicle using KEYLESS-GO
Interior pr otection is only primed when thefo l‐
lowing components are closed:
R doors
R boot lid
Interior pr otection is automatically deactivated:
R afte r pressing theÜ orH button on
th ekey
R afte r pressing thest art/ stop button with the
ke y in thestow age compartment
(/ page 189)
R afte r unlocking theve hicle using KEYLESS-
GO
R when using HANDS-FREE ACCESS
The following situations can lead toafa lse
alarm:
R moving objects such as masc ots in theve hi‐
cle interior R
when a side window is open
R when a panoramic sliding sunroof is open Priming/deactivating interior pr
otection Multimedia sy
stem:
4 © 5
Settings 5
Vehicle
5 Opening/closing 5
Vehicle protection #
Prime or deactivate Interior motion sensor.
Interior pr otection is primed again in thefo llow‐
ing cases:
R The vehicle is unloc ked again.
R A door is opened.
R The vehicle is loc ked again. 106
Opening and closing

Ar
ge ntina Manu‐
fa
ctu rer Model desig‐
nation Ra
dio equip‐
ment appr oval
number
ADC ARS4-A (radar sensor) C-18005
ADC ARS4-B (radar sensor) C-17908
ADC ARS4-C (radar sensor) C-23
776
Bosc hM RR1Rear
(radar sensor) C-2
1798
Bosc hM RRe14FCR
(radar sensor) C-20030
Bosc hF R5CPCCF
(radar sensor) H-23855 Manu‐
fa
ctu rer Model desig‐
nation Ra
dio equip‐
ment appr oval
number
Continen‐
tal
Antenna RKE2
13E1
(antenna
amplifi er) H-1
5475
Continen‐
tal
Antenna RKE223E1
(antenna
amplifi
er) H-24637
Continen‐
ta lAu to‐
motive CMKG1 (lock‐
ing sy
stem) H-243
76
Continen‐
ta lAu to‐
motive MARS
Keyless
(locking sys‐
te m) H-17929
HELL AD M4 (locking
sy stem) H-1
7845 Manu‐
fa
ctu rer Model desig‐
nation Ra
dio equip‐
ment appr oval
number
Hirsch‐
mann 920287A
(lo
cking sys‐
te m) H-15694
Hirsch‐
mann 920287B
(locking sys‐
te
m) H-15695
Huf Bao‐
long TS
SRE4A (ty re
pressure mon‐
itoring sensor) H-20027
HUF HUF 14632
(lo cking sys‐
te m) H-155
41 402
Tech nical da ta