radio MERCEDES-BENZ C-CLASS CABRIOLET 2018 User Guide

ProblemPossible causes/consequences andMSolutions
The engine cannot be
started using the Start/
Stop button. The Smart-
Key is in the vehicle.The vehicle is locked.
XUnlock the vehicle and try to start the vehicle again.
The SmartKey battery is discharged or nearly discharged.
XCheck the SmartKey battery (Ypage 79) and replace it if necessary
(Ypage 79).
If this does not work:
XStart your vehicle with the SmartKey in the ignition lock.
There is interference from a powerful source of radio waves.
XStart your vehicle with the SmartKey in the ignition lock.
You have lost a Smart-
Key.XHave the SmartKey deactivated at a qualified specialist workshop.
XReport the loss immediately to the vehicle insurers.
XIf necessary, have the locks changed as well.
You have lost the
mechanical key.XReport the loss immediately to the vehicle insurers.
XIf necessary, have the locks changed as well.
Doors
Important safety notes
GWARNING
If children are left unsupervised in the vehicle,
they could:
Ropen the doors, thus endangering other
people or road users.
Rget out and disrupt traffic.
Roperate the vehicle's equipment.
Additionally, children could set the vehicle in
motion if, for example, they:
Rrelease the parking brake.
Rshifting the automatic transmission out of
park position P
RStart the engine.
There is a risk of an accident and injury.
When leaving the vehicle, always take the
SmartKey with you and lock the vehicle. Never
leave children or animals unattended in the
vehicle. Always keep the SmartKey out of
reach of children.
Unlocking and opening doors from
the inside
When a door is opened, the side window on that side opens slightly. When the door is closed, the
side window closes again.
!The side windows will not open/close if the
battery is discharged or if the side windows
have iced up. It will then not be possible to
close the door. Do not attempt to force the
door closed. You could otherwise damage the
door or the side window.
You can open a door from inside the vehicle
even if it has been locked. If the vehicle has been
locked with the SmartKey or with KEYLESS-GO,
opening a door from the inside will trigger the
anti-theft alarm system. Switch off the alarm
(
Ypage 74).
Doors81
Opening and closing
Z

GWARNING
If you switch off the ignition while driving,
safety-relevant functions are only available
with limitations, or not at all. This could affect, for example, the power steering and the brake
boosting effect. You will require considerably
more effort to steer and brake. There is a risk
of an accident.
Do not switch off the ignition while driving.
GWARNING
If the parking brake has not been fully
released when driving, the parking brake can:
Roverheat and cause a fire
Rlose its hold function.
There is a risk of fire and an accident. Release
the parking brake fully before driving off.
!Do not warm up the engine with the vehicle
stationary. Drive off immediately. Avoid high
engine speeds and driving at full throttle until
the engine has reached its operating temper-
ature.
Only shift the automatic transmission to the
desired drive position when the vehicle is sta-
tionary.
Where possible, avoid spinning the drive
wheels when pulling away on slippery roads.
You could otherwise damage the drive train.
!Mercedes-AMG vehicles: at low engine oil
temperatures below 68 ‡ (+20 †), the max-
imum engine speed is restricted in order to
protect the engine. To protect the engine and
maintain smooth engine operation, avoid driv-
ing at full throttle when the engine is cold.
Key positions
SmartKey
gTo remove the SmartKey
1Power supply for some consumers, such as
the windshield wipers
2Ignition (power supply for all consumers)
and drive position
3To start the engine
iThe SmartKey can be turned in the ignition
lock even if it is not the correct SmartKey for
the vehicle. The ignition is not switched on.
The engine cannot be started.
Start/Stop button
General notes
When you insert the Start/Stop button into the
ignition lock, the system needs approximately
two seconds recognition time. You can then use
the Start/Stop button.
Pressing the Start/Stop button several times in
succession corresponds to the different Smart-
Key positions in the ignition lock. This is only the
case if you are not depressing the brake pedal.
If you depress the brake pedal and press the
Start/Stop button, the engine starts immedi-
ately.
A check which periodically establishes a radio
connection between the vehicle and the Smart-
Key determines whether a valid SmartKey is in
the vehicle. This occurs, for example, when
starting the engine.
Driving123
Driving and parking
Z

Tachometer
!
Do not drive in the overrevving range, as this
could damage the engine.
The red band in the tachometer indicates the
engine's overrevving range.
The fuel supply is interrupted to protect the
engine when the red band is reached.
Outside temperature display
You should pay special attention to road condi-
tions when temperatures are around freezing
point.
Bear in mind that the outside temperature dis-
play indicates the temperature measured and
does not record the road temperature.
The outside temperature display is in the multi-
function display (
Ypage 194).
Changes in the outside temperature are dis-
played after a short delay.
Coolant temperature gauge
GWARNING
Opening the hood when the engine is over-
heated or when there is a fire in the engine
compartment could expose you to hot gases
or other service products. There is a risk of
injury.
Let an overheated engine cool down before
opening the hood. If there is a fire in the
engine compartment, keep the hood closed
and contact the fire department.
!If the coolant temperature is too high, a dis-
play message is shown.
If the coolant temperature display is in the
area marked in red, do not continue driving.
Otherwise, the engine will be damaged.
The coolant temperature gauge is in the lower
section of the tachometer (
Ypage 36).
Under normal operating conditions and at the
correct coolant level, the display may rise to the
red mark.
Operating the on-board computer
:Multifunction display
;Right control panel
=Left control panel
XTo activate the on-board computer: switch
on the power supply.
You can control the multifunction display and
the settings in the on-board computer using the
buttons on the multifunction steering wheel.
Left control panel
òROpens a menu list
9
:Press briefly:
RScrolls in lists
RSelects a menu or function
RIn the RadioorMediamenu:
opens a track or station list and
selects a station, an audio track or
a video scene.
RIn the Telephonemenu: switches
to the phone book and selects a
name or a telephone number
9
:Press and hold:
RScrolls quickly through all lists
RIn the RadioorMediamenu:
selects a station, audio track or
video scene using rapid scrolling
RIn the Telephonemenu: starts
rapid scrolling if the phone book is
open
Displays an doperation193
On-boa rd computer and displays
Z

aRIn all menus: confirms the selected
entry in the list
RIn theRadioorMediamenu:
opens the list of available radio
sources or media
RIn the Telephonemenu: switches
to the phone book and starts dial-
ing the selected number
ñRVehicles with multimedia system
Audio 20:
Switches off voice control for nav-
igation (see the manufacturer's
operating instructions)
RVehicles with multimedia system
COMAND:
Switches off the Voice Control
System (see the separate operat-
ing instructions)
%Press briefly:
RBack
RIn the RadioorMediamenu: exits
the track or station list or list of
available radio sources or media
RHides display messages
RExits the phone book/redial mem-
ory
%Press and hold:
RCalls up the standard display in the
Tripmenu
Right control panel
~RRejects or ends a call
RExits the phone book/redial mem-
ory
6RMakes or accepts a call
RSwitches to the redial memory
W
XRAdjusts the volume
8RMute
óRVehicles with multimedia system
Audio 20:
Switches on voice control for nav-
igation (see the manufacturer's
operating instructions)
RVehicles with multimedia system
COMAND:
Switches on the Voice Control Sys-
tem (see the separate operating
instructions)
Multifunction display
:Drive program (Ypage 134)
;Transmission position (Ypage 135)
=Additional speedometer
?Display
ATime
BOutside temperature (Ypage 193)
Display panel ?shows the selected menu or
submenu and display messages.
XTo open the menu list: pressòon the
steering wheel.
Display panel ?appears in the menu list.
Possible displays in the multifunction dis-
play:
RZ Gearshift recommendation, when shifting
manually (Ypage 140)
Rj Parking Pilot (Ypage 166)
R¯ Cruise control (Ypage 151)
194Displays and operation
On-board computer and displays

AMG displays inthe head-up display
:Protection against reachin gth eoverrevving
range
;RACE TIMER lap
=RACE TIMER lap tim e
?Currentspee d
ACurrently selected gear ,gearshif toption s
when shiftin gmanually
BCurren tengin espee d
Setting options
You can adjust th efollowin gsettings in th e
head-up display submenu:
Radjust th epositio nof th ehead-up display on
th ewindshield (Ypage 206)
Radjust thebrightness of th edisplays in th e
head-up display (Ypage 206)
Rselect desired displays in th ehead-up display
(Ypage 206)
Usin gth eDispla yConten t
function ,you
can ,depending on your vehicle's equipment,
choos ebetween four standard displays. The
selected contents then appear in th ehead-up
display.
In Mercedes-AM Gvehicles, you can choos e
between further AM Gdisplays in addition to
th estandard displays, depending on your
vehicle's equipment.
If you select adisplay wit htraffic signs, detec-
te dtraffic sign sfrom Traffic Sig nAssist
appear in th ehead-up display.
Menus and submenus
Menu overview
Press th eò buttonon th esteering whee lto
open th emen ulist .
Operating th eon-board computer (
Ypage 193).Dependin
gon th evehicl eequipment, you can
select th efollowin gmenu:
RTri pmen u (Ypage 196)
RNavimen u(navigation instructions)
(Ypage 198)
RRadiomen u (Ypage 200)
RMediamenu (Ypage 200)
RTelephonemenu (Ypage 202)
RAssistanc eGraphi cmenu (Ypage 203)
RServic emenu (Ypage 203)
RSettingsmenu (Ypage 203)
RAMGmenuin Mercedes-AM Gvehicles
(Ypage 208)
Trip menu
Standard display
XPress and hold th e% buttonon th esteer -
ing whee luntil th eTri pmen uwit htrip odom -
eter :and odometer ;appears.
196Menus and submenus
On-board computer and displays

Other status indicators of the naviga-
tion system
:Additional information
Other possible additional information:
RNew Route...orCalculating Route...
A new route is calculated.
RRoad Not Mapped
The vehicle position is inside the area of the
digital map but the road is not recognized, e.g. newly built streets, car parks or private land.
RNo Route
No route could be calculated to the selected
destination.
ROff Map
The map for the current vehicle position is not
available.
RO
You have reached the destination or an inter-
mediate destination.
Radio menu
:Waveband
;Station frequency with memory position
=Name of artist
?Name of track
The multifunction display shows station ;with
station frequency or station name. The preset
position is only displayed along with station ;if
this has been stored. You can store radio sta-
tions in the multimedia system.
XSwitch on the multimedia system.
XPress the òbutton on the steering wheel
to open the menu list.
XPress :or9 on the steering wheel to
select the Radiomenu.
XConfirm by pressing aon the steering
wheel.
Currently set station ;appears in the multi-
function display.
XTo open the channel list: press the:or
9 button briefly.
XTo select a station in the station list: press
the : or9 button briefly.
XTo select a station in the station list using
rapid scrolling: press and hold the :or
9 button.
XTo select the waveband or station mem-
ory:press abriefly.
XPress :or9 to select the waveband or
station memory.
XPress ato confirm the selection.
iSIRIUS XM satellite radio functions like a
normal radio.
Further information about radio operation can
be found in the multimedia system in the Dig-
ital Operator's Manual.
Media menu
Changing the media source
You can change the media source and playback
mode (audio or video) at any time in the Media
menu.
XSwitch on the multimedia system.
XPress theòbutton on the steering wheel
to open the menu list.
XPress :or9 on the steering wheel to
select the Mediamenu.
200Menus and submenus
On-board computer and displays

General notes
The multimedia system section in this Opera-
tor's Manual describes the basic principles for
operation. More information can be found in theDigital Operator's Manual.
Important safety notes
GWARNING
If you operate information systems and com-
munication equipment integrated in the vehi-
cle when driving, you may be distracted from
the traffic situation. You could also lose con-
trol of the vehicle. There is a risk of an acci-
dent.
Only operate this equipment when the traffic
situation permits. If you are not sure that this
is possible, park the vehicle paying attention
to traffic conditions and operate the equip-
ment when the vehicle is stationary.
You must observe the legal requirements for the
country in which you are currently driving when
operating the multimedia system.
The multimedia system calculates the route to
the destination without taking the following into
account, for example:
Rtraffic lights
Rstop and yield signs
Rparking or stopping restrictions
Rroad narrowing
Rother road and traffic rules and regulations
The multimedia system may give incorrect nav-
igation recommendations if the actual street/
traffic situation does not correspond with the
digital map's data.
For example:
Ra diverted route
Rthe road layout or the direction of a one-way
street has been changed
For this reason, you must always observe road
and traffic rules and regulations during your
journey. Road and traffic rules and regulations
always have priority over multimedia system
driving recommendations. Navigation announcements are intended to
direct you while driving without diverting your
attention from the road and driving.
Please always use this feature instead of con-
sulting the map display for directions. Looking
at the icons or map display can distract you from
traffic conditions and driving, and increase the
risk of an accident.
This equipment complies with FCC radiation
exposure limits set forth for uncontrolled equip-
ment and meets the FCC radio frequency (RF)
Exposure Guidelines in Supplement C to OET65.
This equipment has very low levels of RF energy
that is deemed to comply without maximum
permissive exposure evaluation (MPE). How-
ever, it is
recommended to insta

ll it at a distance
of at least 8 inches (approx. 20 cm) between the
radiation source and a person's body (not
including limbs such as hands, wrists, feet and
legs).
GWARNING
Modifications to electronic components, their software as well as wiring can impair their
function and/or the function of other net-
worked components. In particular, systems
relevant to safety could also be affected. As a
result, these may no longer function as inten-
ded and/or jeopardize the operating safety of
the vehicle. There is an increased risk of an
accident and injury.
Never tamper with the wiring as well as elec-
tronic components or their software. You
should have all work to electrical and elec-
tronic equipment carried out at a qualified
specialist workshop.
Function restrictions
For safety reasons, some functions are restric-
ted or unavailable while the vehicle is in motion.
You will notice this, for example, because either
you will not be able to select certain menu items
or a message will appear to this effect.
Function restrictions253
Multimedia system
Z

Operating system
Overview
General notes
Wearing polarized sunglasses may impair your
ability to read the display.
The display has an automatic temperature-con-
trolled switch-off feature. The brightness is
automatically reduced if the temperature is too
high. The display may temporarily switch off
completely.
Cleaning instructions
!Do not touch the display. The display has a
very sensitive high-gloss surface; there is a
risk of scratching. If you have to clean the
screen, however, use a mild cleaning agent
and a soft, lint-free cloth.
The display must be switched off and have
cooled down before you start cleaning. Do not
apply pressure to the display surface when
cleaning it, as this could cause irreversible dam-
age to the display.
Switching the multimedia system
on/off
XPress the Übutton on the center console
to the right of the controller.
XFor Mercedes-AMG vehicles with a switch- able AMG Performance exhaust system:
press the thumbwheel which is to the right of
the controller.
Adjusts the volume
XTurn the thumbwheel to the right of the con-
troller.
The volume is adjusted:
Rfor the currently selected media source
Rduring traffic or navigation announcements
Rin hands-free mode during a phone call
Switching the sound on or off
This function is only available on the multifunc-
tion steering wheel for Mercedes-AMG vehicles
with a selectable AMG Performance exhaust
system.
XPress the thumbwheel to the right of the con-
troller.
or
XPress the 8button on the multifunction
steering wheel.
If the audio output is switched off, the status
line will show the 8symbol. If you switch
the media source or change the volume, the
sound is automatically switched on.
iNavigation announcements will be heard
even if the sound is muted.
Functions
The multimedia system has the following func-
tions:
RRadio mode
RMedia mode with media search
RSound system
RNavigation system
COMAND: navigation via the hard drive
Audio 20: navigation via SD card
RCommunication functions
RSIRIUS Weather (COMAND)
RVehicle functions with system settings
RFavorites functions
Controller
The controller in the center console lets you:
Rselect menu items on the display
Renter characters
Rselect a destination on the map
Rsave entries
The controller can be:
Rturned 3
Rslid left or right 1
Rslid forwards or back 4
Rslid diagonally2
Rpressed briefly or pressed and held 7
Back button
You can use the%button to exit a menu or to
call up the display of the current operating
mode.
254Operating system
Multimedia system

so, vary the distance between remote control
Aand the rear-view mirror.
The required distance between remote con-
trol Aand the integrated garage door opener
depends on the garage door drive system.
Several attempts might be necessary. You
should test every position for at least
25 seconds before trying another position.
Synchronizing the rolling code
Pay attention to the "Important safety notes"
(Ypage 278).
If the garage door system uses a rolling code,
you will also have to synchronize the garage
door system with the integrated garage door
opener in the rear-view mirror. To do this you will
need to use the programming button on the door
drive control panel. The programming button
may be located in different places depending on
the manufacturer. It is usually located on the
door drive unit on the garage ceiling.
Familiarize yourself with the garage door drive
operating instructions, for example under "Pro-
gramming additional remote controls", before
carrying out the following steps.
Your vehicle must be within reach of the garage
door or gate opener drive. Make sure that nei-
ther your vehicle nor any persons/objects are
present within the sweep of the door or gate.
XTurn the SmartKey to position 2in the igni-
tion lock (Ypage 123).
XGet out of the vehicle.
XPress the programming button on the door
drive unit.
Usually, you now have 30 seconds to initiate
the next step.
XGet into the vehicle.
XPress previously programmed button ;,=
or ? on the integrated garage door opener
repeatedly and in quick succession until the
door closes.
The rolling code synchronization is then com- plete.
Notes on programming the remote con-
trol
Canadian radio frequency laws require a "break"
(or interruption) of the transmission signals
after broadcasting for a few seconds. Therefore,
these signals may not last long enough for the
integrated garage door opener. The signal is not
recognized during programming. Comparable with Canadian law, some U.S. garage door open-
ers also feature a "break".
Proceed as follows:
Rif you live in Canada.
Rif you have difficulties programming the
garage door opener (regardless of where you
live) when using the programming steps.
XPress and hold one of buttons
;to? on the
integrated garage door opener. After a short time, indica
tor lamp:lights up
yellow.
XRelease the button.
Indicator lamp :flashes yellow.
XPress button Bof garage door remote con-
trol Afor two seconds, then release it for two
seconds.
XPress button Bof the remote control A
again and hold for two seconds.
XRepeat this sequence on button Bof remote
control Auntil indicator lamp :lights up
green.
When indicator lamp :lights up green: pro-
gramming is finished.
When indicator lamp :flashes green: pro-
gramming was successful. The next step is to
synchronize the rolling code.
XRelease button Bof remote control Aof the
garage door drive.
If indicator lamp :lights up red: repeat the
programming process for the corresponding
button on the rear-view mirror. When doing
so, vary the distance between remote control
A and the rear-view mirror.
The required distance between remote con-
trol Aand the integrated garage door opener
depends on the garage door drive system.
Several attempts might be necessary. You
should test every position for at least
25 seconds before trying another position.
Problems when programming
If you are experiencing problems programing
the integrated garage door opener on the rear-
view mirror, take note of the following instruc-
tions:
RCheck the transmitter frequency used by
garage door drive remote control Aand
whether it is supported. The transmitter fre-
quency can usually be found on the back of
remote control Afor the garage door drive.
Features279
Stowage and features
Z

malfunction has been rectified, the tire pressure
warning lamp goes out after a few minutes of
driving.
The tire pressure values indicated by the on-
board computer may differ from those meas-
ured at a gas station with a pressure gauge. The
tire pressures shown by the on-board computer
refer to those measured at sea level. At high
altitudes, the tire pressure values indicated by a pressure gauge are higher than those shown by
the on-board computer. In this case, do not
reduce the tire pressures.
The operation of the tire pressure monitor can
be affected by interference from radio transmit-
ting equipment (e.g. radio headphones, two-way
radios) that may be being operated in or near the
vehicle.
Checking the tire pressure electroni-
cally
XMake sure that the SmartKey is in position 2
(Ypage 123) in the ignition lock.
XPress òon the steering wheel to call up
the menu list.
XPress 9or: on the steering wheel to
select the Servicemenu.
XConfirm by pressing aon the steering
wheel.
XPress 9or: to select Tire Pres‐sure.
XPressato confirm.
The multifunction display shows the current
tire pressure of each wheel.
If the vehicle was parked for longer than
20 minutes, the following message appears:
Tire
pressurewillbedisplayedafterdriving a few minutes.
After a teach-in process, the tire pressure mon-
itor automatically detects new wheels or new
sensors. As long as a clear allocation of the tire
pressure value to the individual wheels is not
possible, the Tire
PressureMonitorActivemessage is shown instead of the tire pressure
display. The tire pressures are already being
monitored.
Tire pressure monitor warning mes-
sages
If the tire pressure monitor detects a pressure
loss in one or more tires, a warning message is
shown in the multifunction display. The yellow
tire pressure warning lamp then lights up.
RIf thePlease Correct Tire Pressuremessage appears in the multifunction display,
the tire pressure in at least one tire is too low.
The tire pressure must be corrected when the
opportunity arises.
RIf theCheck Tiresmessage appears in the
multifunction display, the tire pressure in one
or more tires has dropped significantly. The
tires must be checked.
RIf the WarningTireMalfunctionmessage
appears in the multifunction display, the tire
pressure in one or more tires has dropped
suddenly. The tires must be checked.
Be sure to observe the instructions and safety
notes in the display messages in the "Tires" sec- tion (
Ypage 234).
If the wheel positions on the vehicle are rotated,
the tire pressures may be displayed for the
wrong positions for a short time. This is rectified after a few minutes of driving, and the tire pres-
sures are displayed for the correct positions.
Restarting the tire pressure monitor
When you restart the tire pressure monitor, all
existing warning messages are deleted and the
warning lamps go out. The monitor uses the cur- rently set tire pressures as the reference values
for monitoring. In most cases, the tire pressure
monitor will automatically detect the new refer-
ence values after you have changed the tire
pressure. However, you can also set reference
values manually as described here. The tire
pressure monitor then monitors the new tire
pressure values.
XSet the tire pressure to the value recommen-
ded for the corresponding driving situation on
the Tire and Loading Information placard on
the B-pillar on the driver's side.
You can find more tire pressures for various
operating conditions in the tire pressure table
inside the filler flap.
Observe the information on tire pressure
when doing so (
Ypage 315).
XMake sure that the tire pressure is correct on
all four wheels.
Tire pressure321
Wheels and tires
Z