sensor MERCEDES-BENZ S-CLASS CABRIOLET 2019 Owner's Manual

*
NO
TEImpairment of the operating ef fi‐
ciency of there stra int sy stems from
ins talling accessory parts or from repairs
or we lding Airbags and Emer
gency Tensioning Devices,
as well as control units and sensors forthe
re stra int sy stems, may be ins talled in thefo l‐
lowing areas of your vehicle:
R Doors
R Door pillars
R Door sills
R Seats
R Cockpit
R Instrument clus ter
R Cen ter console
R Lateral roof frame #
Do not ins tall accessory parts such as
audio sy stems in these areas. #
Do not car ryout repairs or welding. #
Have afte rm arke t ins tallation of acces‐
sories car ried out at a qualified special‐
ist workshop. Yo
u could jeopardize the operating saf ety of your
ve hicle if you use parts, tires and wheels as well
as accessories releva nt tosaf ety which ha venot
been appr ovedby Mercedes-Benz. Saf ety-re le‐
va nt sy stems, e.g. the brake sy stem, may mal‐
function. Only use Mercedes-Benz Genuine Parts
or parts of equal qualit y.Only use tires, wheels
and accessories that ha vebeen specifically
appr ovedfo ryo ur vehicle model.
Mercedes-Benz Genuine Parts are subject to
st rict quality control. Each part has been spe‐
cially de veloped, manufactured or selec tedfor
Mercedes-Benz vehicles and fine-tuned forth em.
Therefore, only Mercedes-Benz Genuine Parts
should be used.
More than 300,000 dif fere nt Mercedes-Benz
Genuine Parts are available for Mercedes-Benz
models.
All auth orized Mercedes-Benz Centers maintain
a supply of Mercedes-Benz Genuine Parts for necessa
ryservice and repair work. In addition,
st ra tegically located parts delivery centers pro‐
vide forqu ick and reliable parts service.
Alw ays specify theve hicle identification number
(VIN) (→ page 408) when ordering Mercedes-
Benz Genuine Parts. Operator's Manual
This Operator's Manual describes all models and
all standard and optional equipment available for
yo ur vehicle at the time of this Opera tor's Man‐
ual going topress. Countr y-specific dif fere nces
are possible. No tethat your vehicle may not be
equipped with all features desc ribed. This is also
th e case for sy stems and functions releva nt to
saf ety. Therefore, the equipment on your vehicle
may dif fer from that in the descriptions and illus‐
trations.
The original pur chase agreement foryo ur vehicle
contains a list of all of the sy stems in your vehi‐
cle.
Should you ha veany questions concerning
equipment and operation, please consult an
authorized Mercedes-Benz Center. 20
General no tes

ve
hicle in a compact form , e.g. thero uting of the
electric lines.
Fu rther information can be obtained at http://
www.mercedes-benz.de/qr-code. Data
storage Electronic control units
Elect
ronic control units are ins talled in your vehi‐
cle. Some of these are necessary forth e safe
operation of your vehicle, while some assist you
when driving (driver assis tance sy stems). In
addition, your vehicle pr ovides com fort and
enter tainment functions, which are also made
possible byelectronic control units.
Elect ronic control units contain da tamemories
which cantemp orarily or permanently store
te ch nical information about theve hicle's operat‐
ing state, component loads, main tenance
re qu irements and tech nical events or malfunc‐
tions. In
general, this information documents thest ate
of a component part, a module, a sy stem or the
sur roundings such as:
R operating status of sy stem components (e.g.
fi ll le vels, battery status, tire pressure)
R status messages concerning theve hicle or
its individual components (e.g. number of
wheel revo lutions/speed, longitudinal accel‐
eration, lateral acceleration, display of fas‐
te ned seat belts)
R malfunctions or faults in impor tant sy stem
components (e.g. lights, brakes)
R information on events leading tovehicle
damage
R system reactions in special driving situations
(e.g. airbag deployment, inter vention of sta‐
bility control sy stems)
R ambient conditions (e.g. temp erature, rain
sensor)
In addition toprov iding the actual control unit
function, this data assists the manufacturer in
de tecting and rectifying malfunctions and opti‐
mizing vehicle functions. The majority of this data is
temp orary and is only processed in the
ve hicle itself. Only a small portion of the data is
st ored in theeve nt or malfunction memor y.
When your vehicle is serviced, tech nical da ta
from theve hicle can be read out byservice net‐
wo rkemplo yees (e.g. workshops, manufactur‐
ers) or third parties (e.g. breakdown services).
Services include repair services, maintenance
processes, warranty claims and quality assur‐
ance measures, forex ample. The read out is per‐
fo rm ed via the legally prescribed port forthe
diagnostics connection in theve hicle. The
re spective service network locations or third
parties collect, process and use the data. They
document tech nical statuses of theve hicle,
assist in finding malfunctions and impr oving
qu ality and are transmit tedto the manufacturer,
if necessar y.Fu rthermore, the manufacturer is
subject toproduct liability. Forth is, the manu‐
fa cturer requirestech nical da tafrom vehicles.
Fa ult memories in theve hicle can be reset by a
service outlet as part of repair or maintenance
wo rk. 26
General no tes

Re
stra int sy stem functionality When
the ignition is switched on, a self-test is
per form ed, during which the0075 restra int sys‐
te m wa rning lamp lights up. It goes out no later
th an a few seconds af terth eve hicle is star ted.
The components of there stra int sy stem are then
functional. Malfunctioning
restra int sy stem A malfunction has occur
red in there stra int sys‐
te m if:
R the0075 restra int sy stem warning lamp does
not light up when the ignition is switched on
R the0075 restra int sy stem warning lamp
lights up continuously or repeatedly during a
journey &
WARNING Risk of inju ryor fata l injury
due toa malfunction in there stra int sys‐
tem
If th ere stra int sy stem is malfunctioning,
re stra int sy stem components may be trig‐ ge
red unintentionally or might not be trig‐
ge red at all in theev ent of an accident. This
may af fect the Emer gency Tensioning Device
or airbag, forex ample. #
Have there stra int sy stem checked and
re paired immediately at a qualified spe‐
cialist workshop. Fu
nction of there stra int sy stem in an acci‐
dent How
there stra int sy stem works is de term ined by
th e se verity of the impact de tected and the type
of accident anticipated:
R Frontal impact
R Rear impact
R Side impact
R Rollover
The activation thre sholds forth e components of
th ere stra int sy stem are de term ined based on
th eev aluation of the sensor values measured at
va rious points in theve hicle. This process is pre-
em ptive in nature. The triggering/deployment of th
e components of there stra int sy stem must
ta ke place in good time at thest art of the colli‐
sion.
Fa ctors whi chcan only be seen and measu red
af te r a collision has occur red do not play a deci‐
sive role in the deployment of an airbag. Nordo
th ey prov ide an indication of airbag deployment.
The vehicle may be deformed significantly with‐
out an airbag being deplo yed. This is the case if
only parts which are relatively easily deformed
are af fected and thera te ofvehicle deceleration
is not high. Con versely, an airbag may be
deplo yedev en though theve hicle suf fers only
minor deformation. If very rigid vehicle parts
such as longitudinal members are hit, forex am‐
ple, this may result in suf ficiently high le vels of
ve hicle deceleration. Occupant saf
ety31

Limited pr
otection from airbags &
WARNING Risk of inju rydue tomodifi‐
cations tothe airbag co ver
If yo u modify the co ver of an airbag or af fix
objects such as sticke rs to it,the airbag may
no longer function cor rectl y. #
Never modify the co ver of an airbag and
do not af fix objects toit. The ins
tallation location of an airbag is identified
by the AIRB AGsymbol (→ page37). &
WARNING Risk of inju ryor death due to
th e use of unsuitable seat co vers
Uns uitable seat co vers can obstruct or pre‐
ve nt the deployment of air bags integrated
into the seats.
Consequentl y,the air bags cann otprotect
ve hicle occupants as they are designed to
do. In addition, operation of the automatic
front passenger air bag shutoff may be
re stricted. #
You should on lyuse seat co vers that
ha ve been appr oved forth e cor respond‐
ing seats byMercedes-Benz. &
WARNING Risk of inju rydue tomalfunc‐
tions of the sensors in the door paneling
Sensors tocontrol the airbags are located in
th e doors. Modifications or worknot per‐
fo rm ed cor rectly tothe doors or door panel‐
ing, as well as damaged doors, can lead to
th e function of the sensors being impaired.
The airbags might therefore not function
proper lyany more.
Consequent ly,th e airbags cann otprotect
ve hicle occupants as they are designed to
do. #
Never modify the doors or parts of the
doors. #
Alw ays ha vewo rkon the doors or door
paneling car ried out at a qualified spe‐
cialist workshop. &
WARNING Risk of inju rydue todeplo yed
airbag
A deplo yed airbag no longer has a pr otective
function and cann otprotect as intended in
th eev ent of an accident. #
Have theve hicle towe dto aqu alified
specialist workshop in order tohave the
deplo yed airbag replaced. Ha
ve deplo yed airbags replaced immediately. St
atus of the front passenger front airbag Fu
nction of the automatic front passenger
front airbag shu toff
The automatic front passenger front airbag shut‐
off is able todetect whe ther the front passenger
seat is occupied bya person or a child restra int
sy stem. The front passenger front airbag and
front passenger knee airbag are enabled or disa‐
bled accordingly. 40
Occupant saf ety

#
Exit theve hicle and press down the locking
knob on the front passenger door. #
Close the front passenger door. Locking/unlocking
theve hicle centrally from
th e inside #
Tounlo ck:press button 1. #
Tolock: press button 2. This does not lock or unlock
the fuel filler flap
and theglove box.
The vehicle is not unloc ked:
R Ifyo u ha veloc kedth eve hicle using the
SmartK ey.
R Ifyo u ha veloc kedth eve hicle using KEY‐
LESS-GO. Locking/unlocking
theve hicle with KEY‐
LESS-GO Requ
irements:
R The SmartK eyis outside theve hicle.
R The dis tance between the SmartK eyand the
ve hicle does not exceed 3 ft(1 m).
R The driver's door and the door at which the
door handle is used are closed. #
Tounlo cktheve hicle: touch the inner sur‐
fa ce of the door handle. #
Tolock theve hicle: touch sensor sur face
1 or2. #
Convenience closing: touch recessed sen‐
sor su rface 2for an extended pe riod.
% Further information on con venience closing
(→ page 75). Opening and closing
63

In
these situations in particular, there ve rsing
function cannot pr event someone being trap‐
ped. #
When closing, ma kesure that no body
parts are in the closing area. #
If someone is trapped, use one of the
fo llowing options:
R Press the008B button on the
SmartK ey.
R Press there mo teoperating switch
on the driver's door.
R Press the closing or locking button
on the trunk lid.
R Press theto p of thest ar on the
trunk lid. HANDS-FREE
ACCESS function Wi
th 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 (→ page67)th e trunk lid. %
Awa rning tone sounds while the trunk lid is
opening or closing. &
WARNING Risk of bu rns caused bya hot
ex haust sy stem
The vehicle exhaust sy stem can become very
hot. If you use HANDS-FREE ACCESS, you
could bu rnyourself by touching theex haust
sy stem. #
Alw ays ensure that you on ly ma ke a
kicking mo vement within the de tection
ra nge of the sensors. *
NO
TEDama getotheve hicle caused by
unin tentional lyopening the trunk lid R
When using an automatic car wash
R When 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. Opening and closing
69

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:
R The SmartK eyis behind theve hicle.
R Stand at least 12in (30 cm) away from the
ve hicle while per form ing the kicking mo ve‐
ment.
R Do not come into contact with the bumper
while making the kicking mo vement.
R Do not car ryout the kicking mo vement too
slowl y.
R The kicking mo vement must be towa rdsthe
ve hicle and back again. 1
Sensor de tection 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:
R Snow or dirt, e.g. from road salt, co vers the
sensor area.
R The 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:
R If 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.
R If objects are mo ved or placed behind the
ve hicle, e.g. charging cables, tensioning
st ra ps or luggage.
Deactivate KEYLESS-GO (→ page 59) or do not
car rythe SmartK eyabout your person in these
and similar situations. Switching separate trunk locking on/off
If
yo u centrally unlo cktheve hicle while separate
locking is activated, the trunk will remain loc ked. 70
Opening and closing

Cornering light
Cornering light function
The cornering light impr
ovesth e illumination of
th ero adw ayove r a wide angle in the turning
direction, enabling better visibility on tight
bends, forex ample. It can be activated on ly
when the low beam is switched on.
The function is active in thefo llowing cases:
R at speeds below 25 mph (4 0 km/h) when the
turn signal indica tor is switched on or the
st eering wheel is turned R
at speeds between 25 mph (4 0 km/h) and
45 mph (70 km/h) when thesteering wheel
is turned Ad
aptive Highbeam Assist Ad
aptive Highbeam Assist function &
WARNING Risk of accident despi te
Ad aptive Highbeam Assist
Ad aptive Highbeam Assist does not recog‐
nize thefo llowing road users:
R Road users without lights, e.g. pedes‐
trians
R Road users with poor lighting, e.g.
cyclists
R Road users whose lighting is obstructed,
e.g. bya bar rier
On very rare occasions, Adaptive Highbeam
Assist may failto recognize other road users
with their own lighting, or may recognize
th em too late. In
these or similar situations, the automatic
high beam is not deactivated or is activated
despite the presence of other road users. #
Alw ays obser vethe tra ffic carefully and
switch off the high beam in good time. Ad
aptive Highbeam Assist cannot take into
account road, weather or traf fic conditions.
De tection may be restricted in thefo llowing
cases:
R in poor visibilit y,e.g. fog, heavy rain or snow
R ifth ere is dirt on the sensors or the sensors
are obscured
Ad aptive Highbeam Assist is on lyan aid. You are
re sponsible for adju sting theve hicle's lighting to
th e pr evailing light, visibility and traf fic condi‐
tions. 11 4
Light and visibility

The
Adaptive Highbeam Assist automatically
swit ches between thefo llowing types of light:
R Low-beam headlamps
R High-beam headlamps
At speeds abo ve19 mp h (3 0 km/h):
R If no other road users are de tected, the high
beam is switched on automaticall y.The high beam switches off automatically:
R Atspeeds below 16mp h (25 km/h).
R Ifot her road users are de tected.
R Ifstre et lighting is suf ficient.
At speeds abo veappr oximately 31mph
(50 km/h):
R The headlamp range of the low beam is regu‐
lated automatically based on the dis tance to
ot her road users.
The sy stem's optical sensor is located behind
th e windshield near theov erhead control panel.
Switching Adaptive Highbeam Assist on/off #
Toswitch on: turnthe light switch tothe
0058 position. #
Switch on the high beam using the combina‐
tion switch.
When the high beam is switched on automat‐
ically in the dar k,the 00CE indicator lamp on
th e multifunction display comes on. #
Toswitch off: switch offthe high beam
using the combination switch. Switching
the daytime running lamps on/off Multimedia sy
stem:
, Vehicle .
÷ Light Settings .
Day-
time Run. Lights #
Activate 0073or deacti vate 0053 the function. Setting
theex terior lighting switch-off delay
time Multimedia sy
stem:
, Vehicle .
÷ Light Settings .
Ext.
Light Switch Off #
Set the switch-off delay time. Setting
the sur round lighting Multimedia sy
stem:
, Vehicle .
÷ Light Settings .
Loca-
tor Lighting #
Activate 0073or deacti vate 0053 the function.
If th e sur round lighting is swit ched on, theex te‐
ri or lighting remains lit for 40 seconds af terthe Light and visibility
11 5

Fo
lding the outside mir rors in/out #
Brief lypress switch 1.
Re setting the outside mir rors
% Ifth e battery has been disconnected or com‐
ple tely discharged, the outside mir rors must
be reset. Only then will the automatic mir ror
fo lding function workproperly. #
Brief lypress switch 1. Ad
justing the outside mir rors #
Select there qu ired mir ror using button 3or
4. #
Use button 2toset the position of the mir‐
ro ryo u ha veselected.
Engaging the outside mir rors #
Press and hold button 1.
Yo u will hear a click and the mir ror will audi‐
bly engage in position. The mir ror is set in
th e cor rect position. Au
tomatic anti-glare mir rorsfunction &
WARNING Risk of bu rns and poisoning
due tothe anti- glare mir ror electrolyte
Electrolyte may escape if theglass in an
automatic anti-glare mir ror breaks.
The electrolyte is harmful and causes ir rita‐
tion. It mu stnot come into contact wi thyour
skin, eyes,respiratory organs or clo thing or
be swallo wed. #
Ifyo u come into contact with electro‐
ly te , obser vethefo llowing:
R Rinse the electrolyte from your skin
and seek medical attention immedi‐
atel y.
R If electrolyte comes into contact
with your eyes, rinse them thor‐
oughly with clean water and seek
medical attention immediately.
R Ifth e electrolyte is swallo wed,
immediately rinse your mouth out
th oroughly. Do not induce vomiting.
Seek medical attention immediately.
R Immedia tely ch ange out of clo thing
which has come into con tact wi th
electrolyte.
R If an allergic reaction occurs, seek
medical attention immediatel y. The inside
rearview mir ror and the outside mir‐
ro r on the driver's side automatically go into
anti- glare mode if light from a headlamp hits the
sensor on the inside rearview mir ror. 12 0
Light and visibility