key MERCEDES-BENZ C-CLASS CABRIOLET 2018 Owner's Guide

Wi
-Fi Wi
-Fi connection overview
Yo u can use Wi-Fi toestablish a connection with
a Wi -Fi network and toaccess the Internet or
ot her network devices.
The following connection options are available:
R Wi-Fi connection
The Wi-Fi connection toaWi -Fi-capable
device, e.g. the cus tomer's mobile phone or
a ta blet PC is es tablished.
R Multimedia sy stem as a Wi-Fi hotspot
Using this function, a tablet PC or no tebook
can be connec ted, forex ample.
To establish a connection, you can use thefo l‐
lowing me thods:
R WPS PIN
The connection toa secure Wi-Fi network is
made via a PIN.
R WPS PBC
The connection toa secure Wi-Fi network is
made bypressing a button (push button).
R Security key The connection
toa secure Wi-Fi network is
made via a secu rity key.
Setting up Wi-Fi
Requ irements:
R The device tobe connec ted supports one of
th eth re e means of connection described
(0013 page 290).
Multimedia sy stem:
0018 System 0019
ö Connectivity
Ac tivating/deactivating Wi-Fi 0007
Switch Wi-Fion0073 or off 0053.
If Wi-Fi is deactivated 0053, communication via
Wi -Fi toall devices is inter rupte d. This also
means that a connection tothe HERMES
communication module cann otbe es tab‐
lished. Then functions such as dynamic route
guidance with Live Traf fic Information are not
av ailable.
Connecting the multimedia sy stem with a
device via Wi-Fi
This function is available if a HERMES communi‐
cation module is not ins talled. The type of connection es
tablished must be
selected on the multimedia sy stem and on the
device tobe connec ted.
0009 The connection procedure may dif fer
depending on the device. Follow the instruc‐
tions that are shown in the displa y.Fu rther
information (see the manufacturer's operat‐
ing instructions). 0007
Select Internet settings . 0007
Select Search for Wi-Fi networks.
Using a security key 0007
Select a Wi-Fi network in the list. 0007
Have the security key displa yed on the device
to be connec ted (see the manufacturer's
operating instructions). 0007
Ente rth is security key on the multimedia sys‐
te m. 0007
Confirm the entry with¡.
0009 All devices support a security key as a
means of connection. 290
Multimedia sy stem

Connecting using a security
key0007
Select Connect device to vehicle hotspot .
A secu rity key is displa yed. 0007
Select theve hicle from the device tobe con‐
nec ted. The vehicle is displa yed with the
SSID MB Hotspot XXXXX .0007
Enter the security key which is shown in the
media display on the device tobe connec ted. 0007
Confirm the entry.
Connecting using NFC 0007
Select Establish a connection via NFC. 0007
Activate NFC on the mobile device (see the
manufacturer's operating instructions). 0007
Bring the mobile device into the NFC area of
th eve hicle (0013 page 333). 0007
Select Done.
The mobile device is now connected tothe
multimedia sy stem hotspot via NFC.
Generating a new security key: 0007
Select Set up hotspot . 0007
Select Generate security key .
A connection will be es tablished with the
newly crea ted security key. 0007
Tosave a security key:select Save.
When a new security key is sa ved, all existing
Wi -Fi connections are then disconnected. If
th eWi -Fi connections are being re-es tab‐
lished, the new security key must be en tere d. Managing COMAND
Touch devices Re
quirements:
R The COMAND Touch app is ins talled on the
ex tern al device (e.g. tablet or smartphone).
R Wi-Fi is acti vated (0013 page 290) and the
multimedia sy stem is confi gured as a Wi-Fi
hotspot (0013 page 291).
Multimedia sy stem:
0018 System 0019
COMAND Touch
Connecting and authorising a new device 0007
Select Authorise a new device. 0007
Select Connect new device. 0007
Ente rth e security key in theex tern al device.
The Please start COMAND Touch on your
device and follow the instructions. message
appears. 0007
Select Continue. 0007
Accept the connection requ est from the new
device. 0007
Ente rth e PIN shown on theex tern al device.
The device is authorised.
Au thorising a connected device 0007
Select Authorise a new device.
The devices already connec ted are displa yed. 0007
Select Continue using connected devices.
The Please start COMAND Touch on your
device and follow the instructions. message
appears. 0007
Select Continue. 0007
The connection requ est from the device
Accept. 0007
Ente rth e PIN shown on theex tern al device.
The device is authorised. 292
Multimedia sy stem

Multimedia sy
stem:
0018 Telephone 0019
Z Options
0019 Telephone
This function ensures optimal language qualit y. 0007
Select Reception volume orTransmission
volume. 0007
Set thevo lume.
Fu rther information on there commended recep‐
tion and transmission volume: http://
www.me rcedes-benz.com/connect
Ad justing the call and ringtone volume
Multimedia sy stem:
0018 System 0019
õ Audio 0019
Telephone 0007
Select Speech volume orRingtone volume .0007
Set thevo lume.
St arting/ stopping mobile phone voice recog‐
nition
Re quirements:
R The mobile phone is connec tedto the multi‐
media sy stem (0013 page 330). St
arting mobile phone voice recognition 0007
Press and hold the00E3 button on the multi‐
function steering wheel for more than one
second.
Yo u can use mobile phone voice recognition.
St opping mobile phone voice recognition 0007
Press the0063 or0076 button on the multi‐
function steering wheel. Calls
Te
lephone operation
Multimedia sy stem:
0018 Telephone 0019
ª Contacts
Making a call 0007
Select Numerical keypad. 0007
Ente rth e number. 0007
Select 0097.
The call is made.
Ac cepting a call 0007
Select Accept . Re
jecting a call 0007
Select Reject.
Ending a call 0007
Select 005A.
Ac tivating functions during a call 0007
Toshow all functions, navigate down.
The following functions are available during a
call:
R End call
R Make additional call
R Keyboard (showtosend DTMF tones)
R Switch Mute mic on0073 or off 0053.
R Private mode (an activecall in hands-free
mode is transfer redove rto thete lephone)
Conducting calls with se veral participants
Requ irements:
R There is an active call (0013 page 334).
R Another call is being made. 334
Multimedia sy stem

Ac
tivating/deactivating full-screen mode
Multimedia sy stem:
0018 Media 0019
à Media sources 0007
Select a data storage medium.
Pla yable video files are pla yed bac k. 0007
Toactivate full-screen mode: select0008
Full screen. 0007
Todeactivate full-sc reen mode: pressthe
to uchpad.
Changing video settings
Multimedia sy stem:
0018 Media 0019
Z Options
0019 Picture format
The following picture form ats are available:
R Automatic
R 16:9
R 4:3
R Zoom 0007
Select a picture form at. Ad
justing the brightness manually
If th eAutomatic pictureform at is swit ched off,
yo u can adjust the brightness yourself. 0007
Select Brightness. 0007
Adjust the brightness. Media sear
ch St
arting the media sear ch
Multimedia sy stem:
0018 Media 0019
ª Search
Depending on the connected media sources and
fi les, thefo llowing categories are lis ted:
R Current track list
R Keyword search
R Playlists
R Artists
R Albums
R Tracks
R Folders
R Music genres
R Year R
Composers
R Videos
R Podcasts (Apple®
devices)
R Audiobooks (Apple®
devices) 0007
Select a categor y.
0009 The categories are available as soon as the
entire media conte nt has beenread in and
anal ysed. Media Inter
face Information about
the Media Inter face
Media In terface is a universal inter face forthe
connection of mobile audio equipment. The mul‐
timedia sy stem has two USB ports. The USB
ports are located in thestow age compartment
under the armrest.
Suppor ted devices
The Media Inter face allo wsyouto connect the
fo llowing data storage media:
R iPod ®
R iPhone ® Multimedia sy
stem 367

Display messages
Possible causes/consequences and 0050
0050Solutions
Check tyre pressures then
restart Run Flat Indicator 0007
When the tyre pressure is cor rect, restart the tyre pressure loss warning sy stem (0013 page440).
Run Flat Indicator inopera-
tive *T
he tyre pressure loss warning sy stem is malfunctioning. 0007
Consult a qualified specialist workshop. Key
Display messages
Possible causes/consequences and 0050 0050Solutions
00AF Key not detected (red dis‐
play message) *T
hekey cannot be de tected and may no longer be in theve hicle.
The key is no lon ger in theve hicle and you swit choff the engine:
R You can no lon gerst art the engine.
R You cannot centrally lock theve hicle. 0007
Ensure that theke y is in theve hicle.
If th eke y de tection function has a malfunction due toast ro ng radio signal source: 0007
Pull over and stop theve hicle safely as soon as possible, paying attention toroad and traf fic conditions. 0007
Place theke y in the slot forst arting the engine with theke y (0013 page150). 514
Displaymessa ges and warning/indicator lamps

Display messages
Possible causes/consequences and 0050
0050Solutions
00AF Replace key *T
hekey needs tobe replaced. 0007
Consult a qualified specialist workshop.
00AF Key not detected (white
display message) *T
hekey is cur rently und etected. 0007
Change the location of theke y in theve hicle. 0007
Ifth eke y is still not recognised, start the engine with theke y in the slot (0013 page150).
00AF Cha nge key batteries *T
hekey bat tery is dischar ged. 0007
Replace the battery (0013 page76).
00AF
Place the key in the
marked space See Owner's
Manual *T
hekey de tection function is malfunctioning. 0007
Change the location of theke y in theve hicle. 0007
Start theve hicle with theke y in the slot (0013 page150). Displ
aymessa ges and warning/indicator lamps 515

Display messages
Possible causes/consequences and 0050
0050Solutions
, Replace key See Owner's
Manual *
Ve hicles with a digital vehicle key:only a few or no authorisations remain forst arting the engine. 0007
Make sure that the internet connection is not limited bycer tain mobile phone settings. 0007
Open the Mercedes me connect http://www.mercedes.me and call up the digital vehicle key service. 0007
Deactivate the service firs t and then activate it again. 0007
Ifth e display message still appears, con tact the Mercedes-Benz Cus tomer Assis tance Center (C AC).
Ve hicles with a digital vehicle keyst icke r:on lyafe w or no authorisations remain forst arting the engine. 0007
Order a new digital vehicle keyst icke r from a Mercedes-Benz Service Centre or at http://www.mercedes-
benz.com/connect. Ve
hicle Display messages
Possible causes/consequences and 0050 0050Solutions
00CA Trailer coupling extending… *E
xtending or retracting the ball nec k.
Do not attem pttospeed up, slow down or initiate there tracting or extending process using your hand, foot or other
aids. During there tracting or extending process, do not couple a traile r.
When the ball neck has reached an operational position, the display message disappears.
00CA *
Yo u ha veattem pted todisplace the ball neck and the transmission is in position 005E,005Cor005B. 0007
Depress the brake pedal. 0007
Shift the transmission toposition 005D. 516
Displaymessa ges and warning/indicator lamps

Calls with se
veral participants ............ .334
Declining ............................................. 334
Ending a call ........................................ 334
Incoming call during an existing call .... 335
Making ................................................ 334
Vi ath eove rhead control panel
(Mercedes me connect) ......................3 46
Camera see 360° Camera
see Reversing camera
Car key
see Key
Car wash
see Care
Car wash (care) ....................................... 396
Care ..........................................................4 05
Air-water duct ...................................... 395
Car wash ............................................. 396
Carpet .................................................4 05
Decorative foil .................................... .399
Displ ay................................................ 405
Draught stop ....................................... 402
Exterior lighting ................................... 403
Fo lding draught stop ........................... 403 High-pressure cleaner .........................3
97
Matt finish ........................................... 398
Pa int wo rk ............................................ 398
Plastic trim .......................................... 405
Re alwo od/trim elements ...................4 05
Re versing camera ................................ 403
Ro of lining ...........................................4 05
Seat belt .............................................. 405
Seat co ver ........................................... 405
Sensors ............................................... 403
Soft top ...............................................4 01
Ta ilpipes .............................................. 403
Tr ailer hit ch......................................... 403
Wa shing byhand ................................. 397
Wheels/rims ....................................... 403
Wi nd de flector .....................................4 01
Wi ndo ws .............................................. 403
Wi per blades .......................................4 03
Carpet (Care) .......................................... .405
Changing gears ........................................ 16 4
Manually ..............................................1 64
Changing hub caps .................................446 Changing
the lights
Driving abroad (symm etrical dipped
beam) .................................................. 127
Cha rging
Bat tery (vehicle) .................................. 420
Chassis Damping characteristics ...................... 213
DY NA MIC BODY CONTROL .................. 213
Child saf ety lock
Ac tivating/deactivating (multimedia
sy stem) ............................................... 293
Child seat Appr oval categories .............................. .56
At tach ing (no tes) ................................... 55
Basic instructions ..................................48
Fr ont passenger seat (no tes) ................. 71
Fr ont passenger seat (without auto‐
matic airbag shutoff) ............................. 71
ISOFIX/i-Size (fitting) ............................ 63
No tes on risks and dangers ...................49
Re commended child restra int sys‐
te ms ...................................................... 52
Seats suita blefor belt-secu redch ild
re stra int sy stems ................................... 67 Index
547

Designs
Menu (on-board co mputer) .................. 253
Destination .............................................. .317
Editing intermedia tedestinations ........ 306
Editing the pr evious destinations ........ .317
External ............................................... 317
Saving (cu rrent vehicle position) ..........3 17
Saving as global favo urite .................... 317
St oring a map position .........................3 17
Destination ent ry..................................... 301
Entering 3 wordaddresses .................. 307
En tering a POI or address .................... 301
Entering an intermedia tedestination .. 305
Ente ring geo-coordinates ..................... 307
Selecting a contact ............................. 306
Selecting a POI .................................... 304
Selecting from the map ....................... 308
Selecting pr evious destinations .......... .304
De tecting inat tentiveness
see ATTENTION ASSIST
Diagnostics connection ............................26
Diesel Low outside temp eratures ...................4 61
No tes ................................................... 461 Digital Owner's Manual
............................20
Digital speedome ter ............................... 256
Digital TV
see TV
Digital Vehicle Keyst icker
Locking theve hicle ................................ 79
St arting theve hicle ............................. 14 9
Un locking theve hicle ............................79
Dinghy towing
see Tow- bar sy stem
Dipped beam Setting .................................................1 35
DIRECT SELECT le ver............................... 16 2
Engaging drive position ....................... 16 4
Engaging neutral .................................. 16 3
Engaging pa rkposition ........................ 16 4
Engaging pa rkposition automatically .. 16 4
Engaging reve rsege ar ........................ .163
Fu nction .............................................. 16 2
Display Care .................................................... 405
Display (multimedia sy stem)
Settings .............................................. .287 Display (on-boa
rdcompu ter)
Displ ays on the multifunction display .. 254
Display content Setting the additional value range ....... 253
Displ aymessage ...................................... 471
Calling up (on-board co mputer) .......... .471
No tes ................................................... 471
Display messages 00B2 - - - km/h .................................. .493
ç - - - km/h ................................... 492
00CB - - - km/h ................................... 494
003D12 V battery See Owner's Man‐
ual ....................................................... 497
0059 12V battery See Owner's Man‐
ual ....................................................... 522
003D48 V battery See Owner's Man‐
ual ....................................................... 499
Ac tive Blind Spot Assi stcur rently
una vailable See Owner's Manual .........487
Ac tive Blind Spot Assi stinope rative .... 492 550
Index

0049Au
tomatic driving lights inoper‐
ative .................................................... 524
Au xilia rybattery malfunction .............. 506
0044Before starting the engine, turn
th esteering wheel. .............................. 508
Blind Spot Assist cur rently una vaila‐
ble See Owner's Manual ...................... 486
Blind Spot Assist inope rative ............... 487
Blind Spot Assi stnot available when
to wing a trailer See Owner's Manual ...4 90
Brake immediate ly............................... 472
Cann otstart engine See Owner's
Manual ................................................ 498
00AFChan gekey bat teries ...................5 15
004D Check brake fluid le vel................ 477
Check brake pads See Owner's Man‐
ual ...................................................... .485
00B2Che ckeng. oil le v.when next
re fuelling ............................................. 502 00CAChe
cktrailer hitch lo ck(white
display message) .................................5 17
Check tyre pressures then restart
Ru n Flat Indicator ................................. 513
0077 Check tyre(s) ................................ 511
003A Clean the fuel filter .................... .496
0058 Close boot sepa rator .................. 523
Clutch overheated Avoid pulling away
fo r XX:XX mins ..................................... 507
0059 Convertible Top Operation pos‐
sible to60 km/h ................................. 522
00ACCoolant Stop vehicle Switch
engine off ............................................ 498
Cruise contro l and Limiter inope ra‐
tive ...................................................... 493
Cruise control inope rative ................... 493
Cruise control off ................................ 493
0025cu rrently unavailable See Own‐
er's Manual .......................................... 47800E5
currently una vailable See Own‐
er's Manual .......................................... 472
Dep ress clutch fully tostart engine .....5 07
00B3 Engine oil le vel cannot be
measured ............................................ 500
00B2Engine oil le velRe duce oil le vel...5 00
00B2Engine oil le velSt op vehicle
Switch engine off ................................. 501
00B2Engine oil pressure Stop Switch
off engine ............................................ 501
Fa ult Drive at max. 80 km/h ...............490
0075Fr ont left malfunction Consult
wo rkshop (Example) ............................4 83
006FFr ont left seat backrest not
loc ked (Example) .................................. 519
Fr ont-passenger airbag disabled See
Owner's Manual ..................................4 82
Fr ont-passenger airbag enabled See
Owner's Manual ................................... 481552
Index