tow 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

1Stow age compartment in the center console →
97
Soc ket →
102
2 Cup holder →
101
3 Stow age compartment in there ar armrest →
974Stow age box in the seat backrest →
97
Re frigerator box →
103
5 Switches there ar seat heating on/off →
88
Ataglance – Control settings in there ar compartment 17

Whattodo in theeve nt of an accident
1 QR code for accessing there scue card →
28
2 Safetyve sts →
342
3 Button forth e SOS emer gency call sy stem and
breakdown assis tance →
294
4 Checking and topping up operating fluids →
396
5 Tow- starting and towing away →
354
6 Flat tire →
3427Starting assis tance →
350
8 Haza rdwa rning lights →
110
9 Fuelfiller flap with instruction labels for tire
pressure , fuel type and QR code for accessing
th ere scue card →
140
A Tow starting and towing away →
354
B TIREFIT kit →
344
Ataglance – Emer gencies and breakdowns 19

must accept any interfere nce, including inter fer‐
ence that may cause undesired operation of the
device."
USA: "Wireless charging sy stem for mobile devi‐
ces (Model: D-WMI20 15A): this device complies
with Part18 ofthe FCC Rules."
The name and address of there sponsible party
is:
Continental Automotive Sy stems US Inc.
24 00 Executive Hills Drive
Au burn Hills, MI 48326-2980
Uni tedSt ates of America
Diagnostics connection
The diagnostics connection is only in tended for
th e connection of diagnostic devices at a quali‐
fi ed specialist workshop.
&
WARNING Risk of accident due tocon‐
necting devices tothe diagnostics con‐
nection
If yo u connect equipment toa diagnostics
connection in theve hicle, it may af fect the
operation of vehicle sy stems.
As a result, the operating saf etyof theve hi‐
cle could be af fected.
#Only connect equipment toa diagnos‐
tics connection in theve hicle which is
appr ovedfo ryo ur vehicle byMercedes-
Benz.
& WARNING Risk of accident due to
objects in the driver's foot we ll
Objects in the driver's foot we ll may impede
pedal tr avel or block a depressed pedal.
This jeopardizes the operating and road
saf etyof theve hicle.
#Stow all objects in theve hicle securely
so that they cannot getinto the driver's
fo ot we ll.
#Alw ays ins tallth efloor mats securely
and as prescribed in order toensure
th at there is alw ays suf ficient room for
th e pedals.
#Do not use loose floor mats and do not
place floor mats on top of one ano ther.
* NO
TEBattery discharging from using
devices connected tothe diagnostics
connection
Using devices at the diagnostics connection
drains the batter y.
#Checkthech arge leve l of the batter y.
#Ifth ech arge leve l is lo w,charge the
batter y,e.g. bydriving a considerable
dis tance.
Connecting equipment tothe diagnostics con‐
nection can lead toemissions monitoring infor‐
mation being reset, forex ample. This may lead
to theve hicle failing tomeet therequ irements of
th e next emissions inspection during the main
inspection.
26 General no tes

Qualified specialistworkshop
An authorized Mercedes-Benz Center is a quali‐
fi ed specialist workshop. It has the necessary
specialist kn owledge, tools and qualifications to
cor rectly car ryout thewo rkrequ ired on your
ve hicle. This particularly applies towo rkreleva nt
to saf ety.
Fo rth efo llowing, alw ays ha veyour vehicle
ch ecked at an authorized Mercedes-Benz Cen‐
te r:
Rwo rkreleva nt tosaf ety
Rservice and maintenance work
Rrepair work
Rmodifications as well as ins tallations and
con versions
Rwo rkon electronic component parts
Mercedes‑Benz recommends an au thorized
Mercedes‑Benz Center.
Cor rect use of theve hicle
If yo ure mo veany warning sticke rs,yo u or others
could failto recognize cer tain dangers. Lea ve
wa rning sticke rs in position.
When using theve hicle, obser vethefo llowing
information:
Rth e saf etyno tes in this manual
Rtech nical da taforth eve hicle
Rtraf fic ru les and regulations
Rlaws and saf etyst andards per taining to
mo torve hicles
Problems with your vehicle
If yo u should experience a problem with your
ve hicle, particularly one that you belie vemay
af fect its safe ope ration, weurge youto contact
an au thorized Mercedes-Benz service center
immediately tohave the problem diagnosed and
re ctified. If the problem is not resolved toyour
satisfaction, please discuss the problem again
with the authorized Mercedes-Benz service cen‐ te
r or, if necessar y,contact us at one of thefo l‐
lowing addresses.
In the USA:
Cus tomer Assis tance Center
Mercedes-Benz US A,LLC
3 Mercedes Drive
Montvale, NJ 0764 5-0350
In Canada:
Cu stomer Relations Department
Mercedes-Benz Canada, Inc.
98 Vande rhoof Avenue
To ronto, Ontario M4G 4C9
Re porting saf ety defects
USA onl y:
The following text is published as requ ired of
manufacturers under Title 49, Code of U.S. Fed‐
eral Regulations, Part57 5 pursuant tothe
"N ational Traf fic and Mo torVe hicle Saf etyAc t of
19 66".
Gene ral no tes 27

Restra int sy stem
Pr otection bythere stra int sy stem
The restra int sy stem includes thefo llowing:
RSeat belt sy stem
RAirbags
RChild restra int sy stem
RChild seat securing sy stem
The restra int sy stem can reduce therisk of vehi‐
cle occupants coming into contact with parts of
th eve hicle interior in theeve nt of an accident. In
th eev ent of an accident, there stra int sy stem
can also reduce thefo rc es towhich theve hicle
occupants are subjected.
A seat belt can only pr ovide the best le vel of pro‐
te ction if it is worncor rectl y.Depending on the
de tected accident situation, Emergency Tension‐
ing Devices and/or airbags supplement the pro‐
te ction of fere dby a cor rectly wornseat belt.
Emer gency Tensioning Devices and/or airbags
are not depl oyed in everyaccident. In order
forth ere stra int sy stem toprov ide the
intended le vel of pr otection, each vehicle occu‐
pant must obser vethefo llowing information:
RFa sten seat belts cor rectl y.
RSit in an almost up right seat position with
th eir back against the seat backrest.
RSit with their feet resting on thefloor, if pos‐
sible.
RAlw ays secure persons under 5 ft(1.50 m)
ta ll in an additional restra int sy stem suitable
fo r Mercedes-Benz vehicles.
Ho wever,no sy stem available today can com‐
ple tely eliminate injuries and
fata lit
ies in every
accident situation. In particular, the seat belt
and airbag generally do not pr otect against
objects penetrating theve hicle from the outside.
It is also not possible tocomplet elyrule out the
ri sk of injury caused bythe airbag deploying.
Re duced restra int sy stem pr otection
&
WARNING Risk of injury or death from
modifications tothere stra int sy stem
The restra int sy stem can no longer function
cor rectly af ter alterations ha vebeen made.
The restra int sy stem may then not pr otect
th eve hicle occupants as intended byfailing
in an accident or triggering unexpec tedly, for
ex ample
#Ne ver alter the parts of there stra int
sy stem.
#Ne verta mp er with the wiring or any
electronic component parts or their
software.
RIf it is necessary tomodify theve hicle to
accommodate a person with disabilities, con‐
ta ct a Mercedes-Benz service center for
de tails.
RUSA only: for de tails, con tact our Cu stomer
Assis tance Center on 1-800-FOR-MERCedes
(1‑800‑367‑63 72).
Occupant saf ety 33

The components of there stra int sy stem can
be activated or deplo yed independently of
each other:
Component De tected deploy‐
ment situation
Emer gency Tension‐
ing Devices Fr
ontal impact, rear
impact, side impact,
ro llo ver
Driver's airbag, front
passenger airbag Fr
ontal impact
Knee airbag Frontal impact
Side impact airbag Side impact
Wi ndow airba gS ide impact,rollo ver,
frontal impact
The front passenger airbag can only be deploy ed
in an accident if thePA SSENGER AIR BAG OFF
indicator lamp is off. If the front passenger seat
is occupied, make sure, bo thbefore and during
th e journe y,that thest atus of the front
passenger airbag is cor rect (
→page 45)
(→page 45).
& WARNING Risk of burn s from hot air bag
components
The air bag parts are hot af ter an air bag has
been deploy ed.
#Do nottouch the air bag parts.
#Ha ve a deplo yed air bag replaced at a
qu alified specialist workshop as soon
as possible.
Mercedes-Benz recommends that you ha vethe
ve hicle towe dto aqu alified specialist workshop
af te r an accident. Take this into account, partic‐
ularly if an Emer gency Tensioning Device is trig‐
ge red or an airbag deplo yed.
If th e Emer gency Tensioning Devices are trig‐
ge red or an airbag is deplo yed, youwill hear a
bang, and a small amount of powder may also be
re leased:
RThe bang will not generally af fect your hear‐
ing.
RIn general, the powder released is not haz‐
ardous tohealth but may cause short-term breathing dif
ficulties topersons suf fering
from as thma or other pulmonary conditions.
Pr ov ided it is safe todo so, lea vetheve hicle
immediately or open the window in order to
pr eve nt brea thing dif ficulties.
Airbags and pyrotech nic Emergency Tensioning
Devices contain pe rchlorate material, which may
re qu ire special handling or environmental pro‐
te ction measure s.Na tional guidelines rega rding
wa ste disposal must be obser ved. In California,
see http://www.dtsc.ca.gov/HazardousWas te/
Pe rchlorate/index.cfm.
Seat belts
Pr otection pr ovided bythe seat belt
Alw aysfast enyour seat belt co rrectly before
st arting a journe y.A seat belt can only pr ovide
th e best le vel of pr otection if it is worncor rectl y.
Occupant saf ety 35

#Make surethat the seat belts are
undamaged, not wornand clean.
#Alw ays ha vethe seat belts checked
immediately af ter an accident at a
qu alified specialist workshop.
Only use seat belts that ha vebeen appr ovedfo r
yo ur vehicle byMercedes-Benz.
&
WARNING Risk of injury or death from
deplo yedpy rotech nic Emergency Ten‐
sioning Devices
Pyro tech nic Emergency Tensioning Devices
th at ha vebeen deplo yed are no longer opera‐
tional and are unable toper form their inten‐
ded pr otective function.
#Therefore, ha vedeplo yedpy rotech nic
Emergency Tensioning Devices immedi‐
ately replaced at a qualified specialist
wo rkshop.
Mercedes-Benz recommends that you ha vethe
ve hicle towe dto aqu alified specialist workshop
af te r an accident. *
NO
TEDama gecaused bytrapping the
seat belt
If an unused seat belt is not fully retracted, it
may become trapped in the door or in the
seat mechanism.
#Alw ays ensure that an unused seat belt
is fully retracted.
Ex tending/r etra cting the seat belt extender
The seat belt extender forth e front seat helps
yo ufa sten your seat belt. When the door is
closed, the seat belt extender extends.
Yo u can also extend the seat belt extender using
th e seat belt extender button.
#Switch on the ignition.
#Press seat belt extender button 1.
The seat belt extender extends.
The seat belt extender retracts again in thefo l‐
lowing cases:
RThe seat belt tongue is engaged in the seat
belt buckle
38 Occupant saf ety