tow MERCEDES-BENZ C-CLASS CABRIOLET 2018 Owners Manual

Symbols
........................................................ 5At
agl ance .................................................... 6
Cockpit ........................................................... 6
Wa rning and indicator lamps ........................ 10
Overhead contro l panel ................................ 14
Door control panel and seat adjustment ....... 16
Emergencies and breakdowns ...................... 18Digital Owner's Manual
.............................20
Calling up the Digital Owner's Manual ..........20 Genera
l notes............................................. 21
Pr otection of the environment ......................21
Ta ke -ba ckof end-of-life vehicles ...................21
Mercedes-Benz Genuine Parts ......................22
Owner's Manual ...........................................23
Operating saf ety .......................................... .23
Declaration of Conformity ............................ 25
Diagno stics connection ................................ 26
Qualified specialist workshop ....................... 27
Ve hicle registration ....................................... 27
Cor rect use of theve hicle ............................28 Information on
the REA CHregulation ........... 28
Implied warranty .......................................... .28
QR code forre scue card ...............................28
Data storage .................................................29
Copyright ...................................................... 31 Occupant saf
ety......................................... 32
Re stra int sy stem ...........................................32
Seat belts ..................................................... 34
Airbags ......................................................... 39
Ro ll bar ........................................................ .46
PRE-SAFE ®
sy stem ....................................... 47
Safely transporting children in theve hi‐
cle ................................................................48
No tes on pets in theve hicle .........................73 Opening and closing
.................................. 74
Ke y ................................................................ 74
Doo rs............................................................ 78
Boot .............................................................. 83
Side windo ws............................................... 84
Soft top ........................................................ 89
Anti- theft pr otection .....................................96 Seats and
stowing ................................... 100
No tes on the cor rect driver's seat posi‐
tion ............................................................. 100
Seats .......................................................... 101
St eering wheel ............................................ 11 0
Easy entry and exitfeature .......................... 11 2
Operating the memory function .................. 11 3
St ow age areas ............................................ .114
Cup holders ................................................ 12 0
Ashtr ayand cigar ette lighter ...................... .122
Soc kets ....................................................... 12 3
Wi reless charging of the mobile phone
and connection with theex terior aerial .......1 24
Fitting/removing thefloor mats ................. 12 6 Light and sight
......................................... 127
Exterior lighting .......................................... 127
Interior lighting ........................................... 13 5
Wi ndsc reen wipers and windscreen
wa sher sy stem ............................................ 13 6
Mir rors ........................................................ 13 8
Operating the sun visors ............................. 1412
Contents

Climate control
........................................ 14 3
Overview of climate contro l systems ..........1 43
Operating the climate control sy stem ......... 14 3 Driving and pa
rking .................................. 147
Driving ........................................................ 147
DY NA MIC SELECT switch ........................... 15 9
Manual transmission ..................................1 60
Au tomatic transmission .............................. 16 2
Fu nction of the 4MATIC .............................. 167
Re fuelling .................................................... 16 8
Pa rking ...................................................... .173
Driving and driving sa fety sy stems .............1 83
Tr ailer hit ch................................................. 24 3
Bicycle rack function .................................. 247
Ve hicle towing instructions ........................ .249 Instrument Display and on-board
comp uter.................................................. 250
Instrument display overview ...................... .250
Overview of the buttons on thesteering
wheel ..........................................................2 51
Operating the on-board computer .............. 252
Setting the design ...................................... 253 Setting
the additional value range .............. 253
Overview of displ ays on the multifunc‐
tion display .................................................2 54
Ad justing the instrument lighting ............... 255
Menus and submenus ................................ 255
Head-up Display .......................................... 261 LINGU
ATRO NIC ........................................ 263
No tes on operating saf ety .......................... 263
Ope ration ................................................... 263
Using LINGU ATRO NIC ef fectively ............... 265
Essential voice commands ........................ .266 Multimedia sy
stem .................................. 278
Overview and operation .............................. 278
Sy stem settings .......................................... 287
Fit & Healt hy............................................... 298
Na vigation .................................................. 300
Te lephone .................................................. .327
Online and Internet functions ..................... 352
Media ......................................................... 360
Ra dio .......................................................... 373
TV ............................................................... 376
Sound ......................................................... 385 Main
tenance and care ............................. 387
ASS YST PLUS service inter val display ........ 387
Engine compartment .................................. 388
Cleaning and care ...................................... .396 Breakdown assi
stance ............................ 408
Emergency ................................................. .408
Flat tyre ...................................................... 41 0
Battery (vehicle) .......................................... 417
To w- starting or towing away ....................... 422
Electrical fuses ........................................... 428 Wheels and tyres
..................................... 431
No tes on noise or unusual handling char‐
acteristics .................................................. .431
No tes on regular lyinspecting wheels and
tyres .......................................................... .431
No tes on snow chains ................................ .431
Ty re pressure .............................................. 432
Wheel change ............................................ .441
Emergency spare wheel .............................. 451
Collapsible spare wheel .............................. 452 Contents
3

1
Steering wheel gearshift paddles →
16 4
2 Combination swit ch →
12 9
3 DIRECT SELECT le ver →
16 2
4 Multimedia sy stem display →
278
5 Glovecompa rtment →
11 6
6 Start/ stop button →
14 8
7 Climate cont rol sy stems →
14 3
8 Control elements forth e multimedia sy stem →
278
9 Haza rdwa rning lights →
13 0
A PASSENGER AIRB AGindicator lamps →
44
B Stow age compartment →
11 6
C Switches the control knob forvo lume and
sound on/off →
278
D Switches the multimedia sy stem on/off →
278
E Extending/r etra cting the seat belt extender →
37
F Opens and closes the soft top →
89
G Activates and deacti vates AIR CAP →
92 H
Stow age compartment →
11 6
I Opens and closes the side windo ws →
84
J ECO start/ stop function →
15 6
K Active Parking Assist →
228
L Sets theve hicle le vel →
215
M DYNA MIC SELECT switch →
15 9
N Control panel forth e multimedia sy stem →
279
O Control panel forth e multimedia sy stem
(s te ering wheel) →
251
P Adjusts thesteering wheel →
111
Q Control panel forth e on-board computer →
251
Operating cruise control or theva riable limiter →
197
Operating Active Dis tance Assi stDISTRONIC →
201
R Diagno stics connection →
26
S Opens the bonn et →
389
T Electric parking brake →
17 9
U Light switch →
127 At
aglance – Cockpit 7

1
Safetyve sts →
408
2 Buttons forth e SOS emer gency call sy stem
and breakdown assis tance →
346
3 Tocheck and top up operating fluids →
458
4 Totow- start and tow aw ay →
422
5 Flat tyre →
41 0
6 Starting assis tance →
420
7 Haza rdwa rning lights →
13 0 8
Fire extinguisher →
41 0
9 Fuelfiller flap with instruction labels for tyre
pressu re, fuel type and QR code for accessing
th ere scue card →
16 8
A Totow- start and tow aw ay →
422
B TIREFIT kit →
412
C First-aid kit (so ftsided) →
409
D Warning triangle →
409 At
aglance – Emer gencies and breakdowns 19

As a
result, the operating saf ety of theve hi‐
cle could be af fected. 0007
Only connect equipment toa diagnos‐
tics connection in theve hicle which is
appr ovedfo ryo ur vehicle byMercedes-
Benz. 000A
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 jeopardises the operating and road
saf ety of theve hicle. 0007
Stow all objects in theve hicle securely
so that they cannot getinto the driver's
fo ot we ll. 0007
Alw aysfit th efloor mats securely and
as prescribed in order toensure that
th ere is alw ays suf ficient room forthe
pedals. 0007
Do not use loose floor mats and do not
place floor mats on top of one ano ther. 000E
NO
TEBattery discharging from using
devices connected tothe diagnostics
connection Using devices at
the diagnostics connection
drains the batter y. 0007
Check thech arge leve l of the batter y. 0007
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. Qualified specialist
workshop
A qu alified specialist workshop has the neces‐
sary special skills, tools and qualifications to
cor rectly car ryout any necessary workon your
ve hicle. This particularly applies tosaf ety-re le‐
va nt wo rks. Alw
ays ha vethefo llowing workcar ried out on
yo ur vehicle at a qualified specialist workshop:
R safety-re leva nt wo rks
R service and maintenance work
R repair work
R modifications as well as ins tallations and
con versions
R workon electronic components
R vehicles with 48 V on-board electrical
sy stem (EQ boost tech nology): workon
high voltage components of the 48 V on-
board electrical sy stem
Mercedes‑Benz recommends a Mercedes‑Benz
service centre. Ve
hicle registration
Mercedes-Benz may ask its service centres to
car ryout tech nical inspections on cer tain vehi‐
cles. The quality or saf ety of theve hicle is
impr oved as a result of the inspection. General no
tes27

The co
mponents of there stra int sy stem can
be activated or deplo yed independently of
each other: Component De
tected deploy‐
ment situation
Seat belt tensioner sFrontal impact, rear
impact, side impact,
ro llo ver
Driver's airbag, front
passenger front air‐
bag Fr
ontal impact Knee airbag
Frontal impact Side impact airbag Side impact
Head airbag Side impact, rollo ver,
frontal impact The front passenger front airbag can only be
depl oyed in an accident if thePA SSENGER AIR
BA G OFF indicator lamp is off. If the front
passenger seat is occupied, make sure, bo th
before and during the journe y,that thest atus of th
e front passenger front airbag is cor rect
(0013 page 44). 000A
WARNING Rick of burns from hot airbag
components
The airbag parts are hot af ter an airbag has
been depl oyed. 0007
Do not touch the airbag parts. 0007
Have a deplo yed airbag 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 a seat belt tensioner is trig gered or an
airbag deplo yed.
If th e seat belt tensioners are trig gered or an air‐
bag is deplo yed, you will hear a bang, and a
small amount of powder may also be released:
R The bang will not generally af fect your hear‐
ing.
R Ingeneral, 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. 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 rectly. 000A
WARNING Risk of inju ryor death due to
incor rectly fastened seat belt
If th e seat belt is not worncor rectly, it can‐
not per form its intended pr otective function.
In addition, an incor rectly fastened seat belt
can also cause injuries, forex ample, in the
ev ent of an accident or when braking or
ch anging direction sudden ly.34
Occupant saf ety

0007
Therefore, ha vedeplo yedpy rotech nic
seat belt tensioners immedia tely
re placed at a qualified specialist work‐
shop. Mercedes-Benz
recommends that you ha vethe
ve hicle towe dto aqu alified specialist workshop
af te r an accident.
000E 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. 0007
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. The seat belt
extender button may also be loca‐
te d in the control panel abo vethe light switch in
Mercedes-AMG vehicles.
Yo u can also extend the seat belt extender using
th e seat belt extender button. 0007
Switch on the ignition. 0007
Press seat belt extender button 1.
The seat belt extender extends. The seat belt
extender retracts again in thefo l‐
lowing cases:
R the seat belt tongue is engaged in the seat
belt buckle
R the seat belt tongue is not engaged in the
seat belt buckle within 60 seconds
If yo u press seat belt extender button 1
again in this case, the seat belt extender will
ex tend again.
R there spective door is opened
R youfo ld the seat backrest forw ards
R nobody is sitting in the front passenger seat
If yo u press seat belt extender button 1
again in this case, the seat belt extender will
no longer extend.
The seat belt extender mu stalw ays be retracted
while theve hicle is in motion. Fa
stening seat belts If
th e seat belt is pulled quickly or sharpl y,the
seat belt retractor lo cks. The seat belt stra p can‐
not be pulled out any fur ther. Occupant saf
ety37

Pot
ential pr otection from each airbag: AIRB
AG Potential pr otection for
…
Knee airbag Thigh, knee and lo wer leg
Driver's airbag,
front passenger
front airbag Head and
ribcage
Head airbag Head
Side impact air‐
bag Ribcage, also pelvis
for
front seat occupants The front passenger front airbag can only be
depl
oyed in an accident if thePA SSENGER AIR
BA G OFF indicator lamp is off. If the front
passenger seat is occupied, make sure, bo th
before and during the journe y,that thest atus of
th e front passenger front airbag is cor rect
(0013 page 44). 000E
NO
TEImpo rtant points toremember if
th e front passenger seat is unoccupied In an accident,
the components of the
re stra int sy stem may deploy unnecessarily
on the front passenger side if:
R There are heavy objects on the front
passenger seat.
R The seat belt tongue is engaged in the
seat belt buckle of the front passenger
seat and the front passenger seat is
unoccupied. 0007
Stow objects in a suitable place. 0007
Only one person should use each seat
belt at any one time. Pr
otection bythe airbags Depending on
the accident situation, an airbag
may supplement the pr otection of fere dby a cor‐
re ctly fastened seat belt. 000A
WARNING Risk of inju ryor death due to
incor rect seat position
If yo u deviate from the cor rect seat position,
th e airbag cann otper form its intended pro‐
te ctive function and deployment may even
cause fur ther injuries.
To avo id hazardous situations, alw ays make
sure that all vehicle occupants:
R Have their seat belt fastened cor rectly,
including pregnant women.
R Are seated properly and keep as faraw ay
as possible from the airbags.
R Obser vethefo llowing information. 0007
Alw ays make sure that there are no
objects between the airbag and vehicle
occupant. To
avo idtherisks resulting from the deployment
of an airbag, each vehicle occupant must
obser vethefo llowing information:
R Before starting your journe y,adjust your seat
co rrectly ;th e driver's seat and front 40
Occupant saf ety

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
(0013 page 100).
R Onlyhold thesteering wheel bythesteering
wheel rim. This allow sth e airbag tobe fully
deplo yed.
R Alw 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
airbags.
R Alw 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 airbag.
R Ifch ildren are tra velling in theve hicle,
obser vethe additional no tes
( 0013 page 49).
R Alw aysstow and secure objects cor rectl y. Objects in
theve hicle interior may pr event an
airbag from functioning cor rectl y.Each vehicle
occupant must alw ays make sure of thefo llow‐
ing:
R There are no people, animals or objects
between theve hicle occupants and an air‐
bag.
R There are no objects between the seat, door
and door pillar (B-pillar).
R There are no hard objects, e.g. coat hangers,
hanging on the grab handles or coat hooks.
R There are no accessory parts, such as PNDs
(Personal Navigation Devices), mobile
phones or cup holders attached totheve hi‐
cle within the deployment area of an airbag,
e.g. on the cockpit, on doors, side windo ws
or side panelling.
In addition, no connecting cable, tensioning
st ra p or retaining stra p may be routed
th ro ugh or attached in the deployment area
of an airbag. Alw ays obser vethe accessory
manufacturer's ins tallation instructions, in
particular the information on suitable places
fo r ins tallation. R
There are no heavy, sharp-edged or fragile
objects in the poc kets of your clo thing. Store
such objects in a suitable place. Limited pr
otection from airbags 000A
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. 0007
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 (0013 page 39). 000A
WARNING Risk of inju ryor death due to
th e use of unsuitable seat co vers
Un suitable seat co vers can obstruct or pre‐
ve nt the deployment of the airbags integra‐
te d into the seats. Occupant saf
ety41

Consequentl
y,the airbags cann otprotect
ve hicle occupants as they are designed to
do. In addition, the operation of the auto‐
matic front passenger airbag shutoff could
be restricted. 0007
You should on lyuse seat co vers that
ha ve been appr oved forth e cor respond‐
ing seats byMercedes-Benz. 000A
WARNING Risk of inju rydue tomalfunc‐
tions of the sensors in the door panelling
Sensors tocontrol the airbags are located in
th e doors. Modifications or worknot per‐
fo rm ed cor rectly tothe doors or door panel‐
ling, 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. 0007
Never modify the doors or parts of the
doors. 0007
Alw ays ha vewo rkon the doors or door
panelling car ried out at a qualified spe‐
cialist workshop. 000A
WARNING Risk of inju rydue todeplo yed
airbag
A deplo yed airbag no longer of fers any pro‐
te ction and cannot pr ovide the intended pro‐
te ctive function in theeve nt of an accident. 0007
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 is ena‐
bled or disabled accordingly. When
fitting a child restra int sy stem tothe front
passenger seat, alw ays make sure of thefo llow‐
ing:
R Ensure that thech ild restra int sy stem is posi‐
tioned cor rectly (0013 page 55).
R Alw ays obser vethech ild restra int sy stem
manufacturer's ins tallation instructions.
R Never place objects, e.g. cushions, under or
behind thech ild restra int sy stem.
R Fully retract the seat cushion length adjust‐
ment.
R The entire base of thech ild restra int sy stem
must alw aysre st on the sitting sur face of the
front passenger seat.
R The backrest of thefo rw ard-facing child
re stra int sy stem must, as far as possible, be
re sting on the seat backrest of the front
passenger seat.
R The child restra int sy stem must not touch the
ro of or be put under stra in by the head
re stra ints. Adjust the seat backrest inclina‐
tion and the head restra int setting accord‐
ing ly. 42
Occupant saf ety