wheel MERCEDES-BENZ S-CLASS CABRIOLET 2018 Owner's Manual

Atagl ance .................................................... 6
Cockpit ........................................................... 6
Wa rning and indicator lamps ........................ 10
Overhead contro l panel ................................ 12
Door control panel and seat adjustment ....... 14
Control settings inthere ar compartment .... .16
Emergencies and breakdowns ...................... 18
DigitalOperator' sManua l........................ .20
Callin gup the Digital Operator's Manual ...... 20
General no tes............................................. 21
Pr otecting the environment .......................... 21
Mercedes-Benz GenuineParts ....................... 21
Operator's Manual ........................................2 2
Service and vehicle operation ......................2 3
Operating saf ety.......................................... .24
Declaration of conformity for wireless
ve hicle components .....................................2 5
Diagnost ics connection ................................ 26
Qualified specialist workshop ....................... 27
Cor rect use of theve hicle ............................. 27
Problems with your vehicle ........................... 27
Re porting saf etydefects .............................. .27 Limited
Warranty .......................................... 28
QR codes forth ere scue card ....................... 28
Data storage .................................................2 8
Copyright .. .................................................... 32
Occupant safety......................................... 33
Re stra int sy stem .......................................... .33
Seat belts ..................................................... 35
Airbags ......................................................... 40
PRE-SAFE
®sy stem ....................................... 47
Childr en intheve hicle ..................................4 9
No tes on pets in theve hicle .........................5 6
Opening and closing.................................. 57
SmartK ey...................................................... 57
Doors ............................................................ 61
Tr unk ............................................................ 65
Ro ller sun blinds .......................................... .71
Side windo ws................................................ 72
Pa noramic roof ............................................. 76
Anti-theft pr otection .................................... .79
Seats and stowing ...................................... 81
No tes on the cor rect driver's seat posi‐
tion ............................................................... 81
Seats ............................................................ 82
St eering wheel ..............................................9 0
Using the memory function .......................... 93
St ow age areas .............................................. 94
Cup holder .................................................. 100
Ashtr ayand cigar ette lighter ...................... .101
Soc kets ....................................................... 102
Re frigerator box .......................................... 103
Wi reless charging of the mobile phone
and connection with theex terior antenna .. 105
Ins talling or removing thefloor mats ..........1 07
Light and visibility ................................... 108
Exterior lighting .......................................... 108
Interior lighting ............................................ 113
Wi ndshield wiper and windshield washer
sy stem ........................................................ 114
Mir rors ........................................................ 116
Operating the sun visors ............................. 119
Infrared reflective windshield function ........ 119
2
Conte nts

Climate control......................................... 121
Overview of climate contro l systems ......... .121
Operating the climate control sy stem ......... 121
Drivin gand pa rking ................................. 128
Driving ........................................................ 128
DY NA MIC SELECT switch ............................1 36
Au tomatic transmission .............................. 137
Re fueling .................................................... 140
Pa rking ...................................................... .142
Driving and driving saf etysy stems ............ .150
Instrument Display and on-board
comp uter .................................................. 208
Instrument Display overview ...................... 208
Overview of the buttons on thesteering
wheel ......................................................... .209
Operating the on-board computer .............. 209
Overview of displa ysinthe multifunction
display ......................................................... 211
Ad justing the instrument lighting ............... .211
Menus and submenus ................................. 212
Head-up Display .......................................... 218
Vo ice Control Sy stem .............................. 220
No tes on operating saf ety.......................... 22 0
Ope ration ................................................... 220
Using theVo ice Cont rol Sy stem ef fec‐
tively ........................................................... 222
Essential voice commands ........................ .223
Multimedia sy stem .................................. 233
Overview and operation .............................. 233
Sy stem settings .......................................... 242
ENERGIZING comfort .................................. 254
Na vigation .................................................. 256
Te lephone .................................................. .280
Online and Internet functions ..................... 297
Media .........................................................3 04
Ra dio ...........................................................3 16
Sound ......................................................... 324
Main tenance and care ............................. 327
ASS YST PLUS service inter val display ........ 327
Engine compartment .................................. 328
Cleaning and care ...................................... .334
Breakdown assist ance............................ 342
Emergency ..................................................3 42
Flat tire ....................................................... 342
Battery (vehicle) ......................................... 348
To w starting or towing away ....................... 353
Electrical fuses ........................................... 359
Wheels and tires ...................................... 362
No tes on noise or unusual handling char‐
acteristics .................................................. .362
Re gular checking of wheels and tires ......... 362
No tes on snow chains ................................ 363
Ti re pressure .............................................. 364
Loading theve hicle .....................................3 70
Ti re labeling ................................................ 374
Definition of term sfo r tires and loading ..... 379
Changing a wheel ...................................... .382
Tech nical data .......................................... 392
No tes on tech nical da ta.............................. 392
Ve hicle electronics .....................................3 92
Ve hicle identification plate, VIN and
engine number overview ............................ .394
Operating fluids .......................................... 396
Conte nts 3

1Steering wheel gearshift paddle →
139
2 Combination switch →
109
3 DIRECT SELECT le ver →
137
4 PASSENGER AIRB AGindicator lamps →
45,
45
5 Display (multimedia sy stem) →
233
6 Start/ Stop button →
129
7 Climat e control sy stems →
121
8 Glovebox →
96
9 Stow age compartment →
95
A Cup holder →
100
B Hazard warning lights →
110
C Extends there ar seat head restra ints →
85
D Parking Assist PARKTRONI C →
184
E Control elements forth e multimedia sy stem →
234
F Active Parking Assist →
192
G Sets theve hicle le vel →
176H
DYNA MIC SELECT switch →
136
I ECO start/ stop function →
135
J Control panel forth e multimedia sy stem →
209
K Adjusts thesteering wheel →
90
L Control panel for:
on-board computer →
209
Operates cruise contro l →
160
Operates Active Dis tance Assist DISTRONIC →
163
M Unloc ksthe hood →
328
N Elect ric park ing brake →
147
O Light switch →
108
P Control panel for:
Ac tive Steering Assist →
169
Ac tive Lane Keeping Assist →
206
Night View Assist →
201
Head-up Display →
218,
21 8
At aglance – Cockpit 7

*NO
TEImpairment of the operating ef fi‐
ciency of there stra int sy stems from
ins talling accessories or from repairs or
we lding
Airbags, Emer gency Tensioning Devices, as
we ll as control units and sensors forth e
re stra int sy stems, may be ins talled in thefo l‐
lowing areas of your vehicle:
RDoors
RDoor pillars
RDoor sills
RSeats
RCo ckpit
RInstrument clus ter
RCente r console
#Do not ins tall accessories such as audio
sy stems in these areas.
#Do not car ryout repairs or welding.
#Have accessori esretrofitted at a quali‐
fi ed specialist workshop.
Yo u could jeopardize the operating saf etyof your
ve hicle if you use parts, tires and wheels as well
as accessories releva nt tosaf etywhic hha ve not
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 GenuineParts
or parts of equal quality. Only use tires, wheels
and accessory parts that ha vebeen specifically
appr ovedfo ryo ur vehicle model.
Mercedes-Benz GenuineParts are subject to
st rict quality control. Each part has been spe‐
cially de veloped, manufactured or selecte dfo r
Mercedes-Benz vehicles and fine-tuned forth em.
Therefore, only Mercedes-Benz GenuineParts
should be used.
More than 300,000 dif fere nt Mercedes-Benz
GenuineParts are available for Mercedes-Benz
models.
All au thorized Mercedes-Benz Centers maintain
a supply of Mercedes-Benz GenuineParts for
necessary service 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 394) when ordering Mercedes-
Benz GenuineParts.
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 descri bed. This also
applies tosaf ety-re leva nt sy stems and functions.
Therefore, the equipment on your vehicle may
dif fer from that in the descriptions and illustra‐
tions.
The original pur chase contract documentation
fo ryo ur vehicle contains a list of all of the sys‐
te ms in your vehicle.
Should you ha veany questions concerning
equipment and operation, please consult an
authorized Mercedes-Benz Center.
The Operator's Manual and Maintenance Booklet
are impor tant documents and should be kept in
th eve hicle.
22
General no tes

&WARNING Risk offire due toflammable
materials on hot parts of theex haust
sy stem
Flammable material such as lea ves, grass or
twigs may ignite if they come into contact
wi th hot parts of theex haust sy stem.
#When driving on unpa vedro ads or off-
ro ad, regular lych eck theve hicle under‐
side.
#Re mo vetrapped plants or other flam‐
mable material.
#If th ere is damage, consult a qualified
specialist workshop immediately.
* NO
TEDama getotheve hicle
In thefo llowing situations, in particular, there
is a risk of damage totheve hicle:
RThe vehicle becomes grounded, e.g. on a
high curb or an unpa vedro ad.
RThe vehicle is driven toofast over an
obs tacle, e.g. a curb, speed bump or pot‐
hole.
RA heavy object strike sth e underbody or
ch assis components.
In situations such as this, the body, the
underbody, chassis components, wheels or
tires could be damaged without the damage
being visible. Components damaged in this
wa ycan unexpec tedly fail or, in the case of
an accident, may not absorb the loads that
arise as intended.
If th e underbody paneling is damaged, flam‐
mable materials such as lea ves, grass or
twigs can collect between the underbody and
th e underbody paneling. These materials may
ignite if they come into contact wi thhot
parts on theex haust sy stem.
#Ha ve theve hicle checked and repaired
immediately at a qualified specialist
wo rkshop.
or
#If driving saf etyis impaired while con‐
tinuing your journe y,pull over and stop
th eve hicle immediately in accordance
with the traf fic conditions, and contact
a qu alified specialist workshop.
Declaration of conformity for wi reless vehi‐
cle co mponents
USA: "The wireless devices of this vehicle com‐
ply with Part15 ofthe FCC Rules. Operation is
subject tothefo llowing two conditions: 1) These
devices may not cause harmful inter fere nce, and
2) These devices must accept any interfere nce
re ceive d, including inter fere nce that may cause
undesired operation. Change s or modifications
not expressly appr ovedby the party responsible
fo r compliance could void the user's authority to
operate the equipment."
Canada: "The wireless devices of this vehicle
comply with Industry Canada license-e xemp t
RSS standard(s). Operation is subject tothefo l‐
lowing two conditions: (1) These devices may
not cause inter fere nce, and (2) These devices
General no tes 25

Ingeneral, this information documents thest ate
of a component part, a module, a sy stem or the
sur roundings such as:
Roperating statuses of sy stem components
(e.g. fluid leve ls, battery status, tire pressure)
Rstatus messages concerning theve hicle and
its individual components (e.g. number of
wheel revo lutions/speed, decele ration, lat‐
eral acceleration, display of thefast ened seat
belts)
Rmalfunctions or defects in impor tant sy stem
components (e.g. lights, brakes)
Rinformation on vehicle damage events
Rsystem reactions in special driving situations
(e.g. airbag deployment, inter vention of sta‐
bility control sy stems)
Rambient 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 theev ent or malfunction memor y.
When service workis done on your vehicle, the
te ch nical da tafrom theve hicle can be read out
by service network staff (e.g. workshops, manu‐
fa cturer) or third parties (e.g. breakdown serv‐
ices). Services include repair services, mainte‐
nance processes, warranty events a
nd
quality
assurance measures, forex ample. The read out
is per form ed via the legally prescribed port for
th e 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 transmitted tothe manufacturer,
if necessar y.Fu rthermore, the manufacturer is
subject toproduct liability. Forth is, the manu‐
fa cturer requirestech nical da tafrom vehicles.
Malfunction memories in theve hicle can be
re set bya service outlet as part of repair or
maintenance work.
They can enter data into theve hicle's comfort
and inf otainment functions themselves as part
of the selected equipment. These include:
Rmultimedia data such as music,
films or pho‐
to sfo r playba ckin an integrated multimedia
sy stem
Raddress book data for use in connection with
an integrated hands-free sy stem or an inte‐
grated navigation sy stem
Rentered navigation destinations
Rdata about the use of Internet services
This data can be sa ved locally in theve hicle or it
is located on a device which you ha veconnected
to theve hicle (e.g. smartphone, USB flash drive
or MP3 pla yer). If this data is stored in theve hi‐
cle, you c
an dele
teit at any time. This data can
only be transmitte dto third parties upon your
re qu est with particular rega rd tothe scope of
use of online services according toyour selected
settings.
Yo u can store or change con venience settings/
individualization in theve hicle at any time.
Depending on the equipment, this includes, for
ex ample:
Rseat and steering wheel position settings
General no tes 29

Toavo idtherisks resulting from the deployment
of an air bag, each vehicle occupant must
obser vethefo llowing information:
RBefore starting your journe y,adjust your seat
co rrectly ;th e driver's seat and front
passenger seat should be mo ved as far back
as possible.
When doing so, alw ays obser vethe informa‐
tion on the cor rect driver's seat position
(
→page 81).
ROnly hold thesteering wheel bythesteering
wheel rim. This all owsthe air bag tobe fully
deplo yed.
RAlw ays lean against the seat backrest when
th eve hicle is in motion. Do not lean forw ards
or against the door or side windo w.You may
ot herwise be in the deployment area of the
air bags.
RAlw ayske ep your feet on thefloor. Do not
put your feet on the cockpit, forex ample.
Yo ur feet may otherwise be in the deploy‐
ment area of the air bag.
RIfch ildren are tra veling in theve hicle,
obser vethe additional no tes (→page 49).
RAlw aysstow and secure objects cor rectly.
Objects in theve hicle interior may pr event an air
bag from functioning cor rectly. Each vehicle
occupant must alw ays make sure of thefo llow‐
ing:
RThere are no people, animals or objects
between theve hicle occupants and an air
bag.
RThere are no objects between the seat , door
and door pillar (B-pillar).
RThere are no hard objects, e.g. coat hangers,
hanging on the grab handles or coat hooks.
RThere are no accessory parts, such as cup
holders, attached totheve hicle within the
deployment area of an air bag, e.g. on doors,
side windo wsor side trim.
RThere are no heavy, sharp-edged or fragile
objects in the poc kets of your clo thing. Store
such objects in a suitable place.
Re duced airbag pr otection
&
WARNING Risk of injury from modifica‐
tions tothe airbag co ver
If yo u modify an airbag co ver or af fix objects
such assticke rs to it,the airbag can no lon‐
ge r function cor rectl y.
#Ne ver modify an airbag co ver and do
not af fix objects toit.
The ins tallation location of an airbag is identified
by the AIRB AGsymbol (→page 40).
&
WARNING Risk of injury or death dueto
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 cannot protect
ve hicle occupants as they are designed to
do. In addition, operation of the automatic
front passenger air bag shutoff may be
re stricted.
42
Occupant saf ety

Ifyo u open the trunk lid from outside, the trunk
lid is automatically unloc ked.
Problems with KEYLESS-GO
Problem
Possible causes/consequences and MSolutions
Yo u can no longe r lock or unlock the
ve hicle using KEYLESS-GO. Po
ssible causes:
RThe SmartK eybattery is dischar ged or nearly dischar ged.
RThere is inter fere nce from a po werful radio signal source.
RThe SmartK eyis defective.
#Check the battery using the battery check lamp and replace if necessary .
#Use the mechanical keyto lock or unlock theve hicle .
#Ha ve theve hicle and SmartK eychecked at a qualified specialist workshop.
Switching the automatic locking feature
on/off
The vehicle is loc ked automatically when the
ignition is switched on and the wheels are turn‐
ing fast erthan walking pace.
Opening and closing 63

Notes onthe cor rect driver's seat position
&
WARNING Risk of injury from adjusting
th eve hicle settings while theve hicle is in
motion
Yo u could lose cont rol of theve hicle in the
fo llowing situations:
Rifyo u adjust the driver's seat, the head
re stra int, thesteering wheel or the mir ror
while theve hicle is in motion
Rifyo ufa sten your seat belt while theve hi‐
cle is in motion
#Before starting the engine: adjust the
driver's seat, the head restra int, the
st eering wheel or the mir ror and fasten
yo ur seat belt.
Ensure thefo llowing when adjusting thesteering
wheel 1, seat belt 2and driver's seat 3:
RYou are as faraw ay from the driver's airbag
as possible
RYo u are sitting in a no rmal upright position
RYour thighs are slightly supportedby the seat
cushion
RYo ur legs are not entirely stre tched and you
can dep ress the pedals properly
RThe back of your head is support ed ateye
le ve lby the center of the head restra int
RYo u can hold thesteering wheel with your
arms slightly bent
RYo u can mo veyour legs freely
RYo u can see all the displa yson the instru‐
ment clus ter clearl y
RYou ha vea good overview of the traf fic con‐
ditions
RThe seat belt is pulled snugly against the
body and is routed across the center of your
shoulder and across your hips in the pelvic
area
Seats and stowing 81

Seats
Adjusting the front seat electrically
&
WARNING Risk of becoming trapped if
th e seats are adjus tedby children
Children could become trapped if they adjust
th e seats, particularly when unattended.
#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.
The seats can be adjus ted when the ignition is
switched off.
& WARNING Risk of becoming trapped
when adjusting the seats
When you adjust a seat, you or other vehicle
occupants could become trapped, e.g. on the
seat guide rail.
#Make sure when adjusting a seat that
no one has any body parts in the sweep
of the seat.
Obser vethe saf etyno tes on "Airbags" and "Chil‐
dren in theve hicle".
&
WARNING Risk of injury from adjusting
th eve hicle settings while theve hicle is in
motion
Yo u could lose cont rol of theve hicle in the
fo llowing situations:
Rifyo u adjust the driver's seat, the head
re stra int, thesteering wheel or the mir ror
while theve hicle is in motion
Rifyo ufa sten your seat belt while theve hi‐
cle is in motion
#Before starting the engine: adjust the
driver's seat, the head restra int, the
st eering wheel or the mir ror and fasten
yo ur seat belt.
&
WARNING Risk of becoming trapped if
th e seat height is adjus ted carelessly
If yo u adjust the seat height carelessly, you
or other vehicle occupants could be trapped
and thereby injured.
Children in particular could accidenta lly
press the electrical seat adjustment buttons
and become trapped.
#While moving the seats, make sure that
hands or other body parts do not get
under the le ver assembly of the seat
adjustment sy stem.
&
WARNING Risk of injury duetohead
re stra ints which are not ins talled or are
adjus ted incor rectly
If head restra ints are not ins talled or are
adjus ted incor rectly, the head restra ints can‐
not pr ovide pr otection as intended.
There is an increased risk of injury in the
head and neck area, e.g. in theeve nt of an
accident or when braking.
82 Seats and stowing