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

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

1Speedom eter →
208
2 AIR BODY CONTROL malfunctioning →
454
3 #! Turn signal light →
109
4 Multifunction display →
211
5 Tach ome ter →
208
6 å ESP
®OFF →
447
÷ ESP
®→
447
7 K High beam →
109
L Low beam →
108
T Parking lights →
108
8 ? Coolant too hot/cold →
456
9 Coolant temp erature gauge →
208
A · Distance warning →
454
B Ð Steering assis tance malfunction →
455
C # Electrical malfunction →
456
D Brakes (red) →
447
$ USA only
J Canada only
E ü Seat belt is not fastened →
454
F Fuel le vel display
G 8 Fuelreser vewith fuel filler flap location
indicator →
456,
456
H R Rear fog light →
109
I 6 Restra int sy stem →
34
J % Indicator lamp has no function
K ; Check Engine →
456
L Elect ric park ing brake applied (red) →
447
F USA only
! Canada only
M h Tire pressure monitoring sy stem →
460
N ! ABS malfunction →
447
O ! Electric pa rking brake (yellow) →
447
At aglance – Warning and indicator lamps 11

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

Protecting the environment
+ENVIRONMENTAL NOTEEnvironmental
damage duetooperating conditions and
personal driving style
The pollutant emission of your vehicle is
directly related tothewa yyo u operate your
ve hicle.
Yo u can help toprotect the environment by
operating your vehicle in an environmentally-
re sponsible manner. Please obser vethefo l‐
lowing recommendations on ope rating condi‐
tions and pe rsonal driving style.
Operating conditions:
#Make sure that the tire pressure is cor‐
re ct.
#Do not car ryany unnecessary weight
(e.g. roof luggage rack s once you no
longe r need them).
#Ad here tothe service inter vals.
A regularly serviced vehicle will contri b‐
ute toenvironmen tal pr otection.
#Alw ays ha vemaintenance workcar ried
out at a qualified specialist workshop.
Pe rsonal driving style:
#Do not depress the accelera tor pedal
when starting the engine.
#Do not warm upthe engine while the
ve hicle is stationar y.
#Drive carefully and maintain a suitable
dist ance from theve hicle in front.
#Av oid frequent, sudden acceleration
and braking.
#Change gear in good time and use each
ge ar only uptoÔ of its maximum
engine speed.
#Switch off the engine in stationary traf‐
fi c, e.g. byusing the ECO start/ stop
function.
#Drive fuel-ef ficiently.
Environmental issues and recommendations:
it is recommended that youre -use or recycle
materials ins tead of just disposing of them. The
releva nt environmental guidelines and regu‐
lations ser vetoprotect the environment and
must be strictly obser ved.
Mercedes-Benz GenuineParts
+ENVIRONMEN TALNO TEEnvironmental
damage causedbynot using recycled
re conditioned components
Daimler AGoffers recycled reconditioned
components and part s withthe same quality
as new parts. The same entitlement from the
Limited Warranty is valid as for new parts.
#Use recycled reconditioned compo‐
nents and part s from Daimler AG.
Gene ral no tes 21

Service andvehicle operation
Ve hicle operation outside the USA or Canada
When you are abroad withyo ur vehicle, obser ve
th efo llowing points:
RService points or replacement parts may not
be available immediatel y.
RUnleaded fuel may not be available forve hi‐
cles with a catalytic con verter. Leaded fuel
may cause damage tothe catalytic con verter.
RThe fuel may ha vean extreme lylow octane
number. Unsuitable fuel can cause engine
damage.
Some Mercedes-Benz models are available in
Europe thro ugh our European De livery Prog ram.
Fo r more information, please consult an au thor‐
ized Mercedes‑Benz service center, or write to
one of thefo llowing address:
In the USA:
Mercedes-Benz US A,LLC
European Delivery Department
One Mercedes Drive
Montvale, NJ 0764 5-0350 In Canada:
Mercedes-Benz Canada, Inc.
European Delivery Department
98
Vande rhoof Avenue
To ronto, Ontario M4G 4C9
Maintenance
Yo ur cus tomer advisor confirms the service in
th e service report.
Ro adside Assistance
The Mercedes-Benz Roadside Assis tance Pro‐
gram of fers tech nical help in the case of a
breakdown. Your calls totheto ll-f reeRo adside
Assis tance Hotline are ans weredby our agents
24 hours a da y,365 da ysaye ar.
1-800- FOR-MERCedes (1-800-367-63 72) (USA)
1-800-387-0 100 (Canada)
Yo u can find fur ther information in the
Mercedes-Benz Roadside Assis tance Program
brochure (USA) orthe "Roadside Assis tance" section in
the maintenance and warranty infor‐
mation booklet (Canada). Youwill find bo thin
th eve hicle document wallet.
Change of address or change of ownership
Intheev ent of a change of address, please send
us the "Notification of address change" in the
Service and Guarantee booklet or simply call the
Mercedes-Benz Cus tomer Assis tance Center
(USA) on the hotline number
1-800-FO R-MERCedes (1-800-367-63 72) or Cus‐
to mer Service (Canada) on 1-800-387-0 100. We
can then reach you in a timely fashion, if neces‐
sar y.
If yo u sell your Mercedes, please lea veall litera‐
ture in theve hicle so that it is available tothe
next owner. If you ha vepur chased a used vehi‐
cle, please send us the "Notice of Pur chase of
Used Car" in the Service and Guarantee booklet
or simply call the Mercedes-Benz Cus tomer
Assis tance Center (USA) at the hotline number
1-800-FO R-MERCedes (1-800-367-63 72) or Cus‐
to mer Service (Canada) at 1-800-387-0 100.
Gene ral no tes 23

Ifyo ubelie vethat your vehicle has a defect
which could cause a crash or could cause injury
or death, you should immediately inform the
Na tional Highw ayTraf fic Saf etyAd ministration
(NHT SA) in addition tonotifying Mercedes-Benz
US A,LLC.
If NHT SAreceive s similar complaints, it may
open an in vestigation, and if it finds that a saf ety
defect exists in a groupof vehicles, it may order
a re call and remedy campaign. Ho wever,NHT SA
cannot become in volved in individual problems
between you, your dealer, or Mercedes-Benz
US A,LLC.
To contact NHT SA,yo u may call theVe hicle
Saf etyHotlin eto ll-f ree at 1-888-327-4236
(TT Y:1-800-424-9 153) (inside the USA); go to
http://www.safercar.gov; or write to:Ad minis‐
trator, NHT SA, 400 Se venth Street,SW .,Wa sh‐
ington, DC 20590, US A.
Fu rther information on vehicle saf etycan be
fo und at: http:/ /www.safercar.g ovLimitedWarranty
* NO
TEDama getotheve hicle arising
from violation of these operating instruc‐
tions.
Damage totheve hicle can arise from viola‐
tion of these operating instructions.
This damage is not co vered either bythe
Mercedes-Benz implied warranty or bythe
New‑ or Used- Vehicle Warrant y.
#Follow the instructions in these operat‐
ing instructions on proper operation of
yo ur vehicle as well as on possible vehi‐
cle damage.
QR codes for the rescue card
The QR code is secured in the fuel filler flap and
on the opposite side on the B-pillar. In theeve nt
of an accident, rescue services can use the QR
code toquickly find the appropriate rescue card
fo ryo ur vehicle. The cur rent rescue card con‐
ta ins the most impor tant information about your 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, mainte nance
re qu irements and tech nical events or malfunc‐
tions.
28 General no tes

Ifyo udo not open theve hicle within appr ox‐
imately 40 seconds af ter unlocking:
Rth eve hicle is loc ked again
Ranti- theft pr otection is reactivated
Do not keep the SmartK eytoge ther with elec‐
tronic devices or me talobjects. This can af fect
th e SmartK ey's functionality.
% If battery check lamp 2does not light up
af te r pressing the% or& button, the
battery is dischar ged.
Ac tivating/deactivating the acoustic lo cking
ve rification signal
Multimedia sy stem:
,Vehicle.î Vehicle Set-
tings.Acoustic Lock
#Ac tivate Oor deacti vate ª the function.
Ac tivating/deactivating the panic alarm
Re quirements
% The panic alarm function is only available in
cer tain countries.
RThe ignition is switched off.
#To activate: press button 1for app rox‐
ima tely one second.
A visual and audible alarm is triggered.
#To deactivate: briefly press but ton1 again.
or
#Press thest art/ stop button on the dash‐
board (the SmartK eyis inside theve hicle).
Changing the unlocking settings
Po ssible unlocking functions of the SmartK ey:
RCentral unlo cking
RUn locking the driver's door and fuel filler flap
#To switch between settings: pressthe
% and& buttons simultaneously for
appr oximately six seconds until the battery
ch eck lamp flashes twice.
If th e unlocking function forth e driver's door
and fuel filler flap has been selecte d:
RPressingthe% button a second time cen‐
trally unloc kstheve hicle.
RVe hicles 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.
Re ducing the energy consu mption of the
SmartK ey
Allvehicles: ifyo udo not use theve hicle or a
SmartK eyfor an extended pe riod of time, you
can reduce the energy consum ption of the
58
Opening and closing

#Exittheve 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
#To unlock :press button 1.
#Tolock: press button 2.
This does not lock or unlock the fuel filler flap.
The vehicle is not unloc ked:
RIfyo u ha veloc kedth eve hicle using the
SmartK ey.
RIfyo u ha veloc kedth eve hicle using KEY‐
LESS-GO.
Locking and unlocking theve hicle with KEY‐
LESS-GO
Requ irements:RThe SmartK eyis outside theve hicle.
RThe dis tance between the SmartK eyand the
ve hicle does not exceed 3 ft(1 m).
RThe driver's door and the door at which the
door handle is used are closed.
#To unlock theve hicle: touch the inner sur‐
fa ce of the door handle.
#To lock theve hicle: touch sensor sur face
1 or2.
#Co nvenience closing: touch recessed sen‐
sor surf ace2for an extended pe riod.
% For fur ther information on con venience clos‐
ing (
→pa ge 74).
62
Opening and closing

Starting theve hicle in emer gency operation
mode
If th eve hicle does not start and thePlace the
Key in the Marked Space See Operator's Manual
display message appears in the multifunction
displa y,yo u can start theve hicle in emer gency
operation mode.
#Make surethat mar ked space 2is em pty.
#Re mo veSmartK ey1 from theke yring.
#Place Smart Key1 in mar ked space 2.
The vehicle will start af ter a short time.
If yo ure mo veSmartK ey1 from mar ked
space 2the engine continues running. For
fur ther vehicle starts ho wever,SmartK ey1
must be located in mar ked space 2during
th e entire journe y.
#Have SmartK ey1 checked at a qualified
specialist workshop.
If th eve hicle does not star t:
#Lea veSmartK ey1 in mar ked space 2.
#Depress the brake pedal and start theve hicle
using thest art/ stop button.
% You can also switchon the po wer supp lyor
th e ignition with thest art/ stop button.
St arting theve hicle via Remo teOnline serv‐
ices
Cooling or heating theve hicle interior before
commencing your journey
% This function is not available in all countries.
If yo ustart theve hicle via your smartphone, the
pr ev iously selecte d air conditioning adjustment
is active. Ensure
thefo llowing before starting the engine:
RThe legal stipulations in the area where your
ve hicle is par ked allow engine starting via
smartphone.
RIt is safe tostart and runth e engine where
yo ur vehicle is par ked.
RThe fuel tank is suff icientlyfilled.
RThe star ter battery is suf ficiently charge d.
St arting the vehicle
&
WARNING Risk of crushing or entrap‐
ment due tounin tentional starting of the
engine
Limbs could be crushed or trapped if the
engine is star ted unintentionally during
service or maintenance work.
#Alw ays secure the engine against unin‐
te ntional starting before car rying out
maintenance or repair work.
Re quirements:RPark position jis selected.
RThe anti- theft alarm sy stem is not activated.
13 0
Driving and pa rking

&DANG ER Risk of fata l injury due topoi‐
sonous exhaust gases
If th eta ilpipe is bloc ked or suf ficient ventila‐
tion is not possible, poisonous exhaust gases
such as carbon monoxide may enter theve hi‐
cle. This is the case if theve hicle getsst uck
in snow ,fo rex ample.
#Ke ep theta ilpipe and the area around
th eve hicle free from snow when the
engine or thest ationary heater are run‐
ning.
#Open a window on the windward side of
th eve hicle toensure an adequate sup‐
ply of fresh air.
& WARNING Risk of accident and injury
due tobeing under the influence of alco‐
hol and drugs while driving
Driving when under the influence of alcohol
and/or drugs is an extreme lydangerous
combination. Even small quantities of alcohol
or drugs may af fect your reflexe s, perception
and judgment.
The probability of a serious or even fata l acci‐
dent greatly inc reases if you dr ive when
under the influence of alcohol or drugs.
#Do not drink alcohol or take drugs while
driving, and do not allow an yone to
drive who has been drinking alcohol or
ta king drugs.
&
WARNING Risk of accident due tothe
brake sy stem overheating
If yo u lea veyour foot on the brake pedal
when driving, the brake sy stem may over‐
heat.
This increases the braking dis tance and the
brake sy stem may evenfa il.
#Ne ver use the brake pedal as a foot re st.
#Do not depress the brake pedal and the
accelerator pedal at the same time
while driving.
* NO
TEWearing out the brake linings by
continuously dep ressing the brake pedal
#Do not depress the brake pedal contin‐
uously whilst driving.
#To use the braking ef fect of the engine,
shift toa lo werge ar in good time.
* NO
TEDama getothe driv etra in and the
engine when pulling away
#Do not warm upthe engine when the
ve hicle is stationar y.Pull away immedi‐
atel y.
#Avoid high engine speeds and driving at
full thro ttle until the engine has reached
operating temp erature.
#Do not allow the wheels tospin.
* NO
TEDama getothe catalytic con verter
due tonon-combu sted fuel
The engine is not running smoot hly and is
misfiring.
Driving and parking 13
3