2017 MERCEDES-BENZ C-Class ECU

Adjusting the volumefor phone calls
You can adjust thevolume for hands-free mod e
during atelephon ecall .
XTurn th ethumbwheel to th eright of th econ-
troller .
or
XPress th eW orX buttonon th emulti-
function steering wheel.
iSetting th evolume for th eVoic eControl
Syste mvoice output ;see th eseparat eoper -
ating instructions.
Switching the sound on oroff
Media source sound
XPress th ethumbwheel to th eright of th econ-
troller .
or
XPress th e8 buttonon th emultifunction
steering wheel.
iIf th eaudio output is switched off ,th estatus
lin ewill sho wthe8 symbol. If you switch
th emedia source or chang eth evolume, th e
soun dis automatically switched on .
iEven if thesoun dis switched off ,you will still
hear navigation system announcements .
Switching navigationannouncements
off and onagain
XTo switch off navigation announcements:
press th ethumbwheel to th eright of th econ-
troller during th eannouncement.
The Spoken drivin grecommendations
hav ebee ndeactivated.message
appears.
XTo switch navigation announcement son
again: switch th emultimedia system off and
then on again (
Ypage 27).
or
XStart ane wrout ecalculation (Ypage 58).
or
XWhil erout eguidance is active ,sho wthe
men uand select
(Ypage 74) .
Basic menu displays
XPress theÕ buttonor th eß, $,
%, orØ button.
Navigation: themap displays th ecurren t
vehicl eposition .
Radio :th ebasic men uof th elast radi omod e
set appears.
Media: thebasic display for th elast media
source set appears. In th eexample, SD car d
mod eis set .
Telephone: thebasic display of th etele-
phone men uappears.
Vehicle functions: thebasic display
appears.
XTo sho wth emenu: slide4 thecontroller .
The men ufor th eselected function sappears.
Dependin gon th eoperation ,th emarking is
shown in main function bar :or men u
bar ;.
XTo select amen uitem: turnand press th e
controller .
Once you hav eselected amen uitem in :,
th elast men uset for th eselected function
appears.
Men ubar ;offers option sin th ecurren t
media mode.
28Basic functions
Overview and operation

Your multimediasyste mequipment
These operatin ginstruction sdescribe all th e
standar dan doptional equipment of your multi-
media system, as available at th etime of going
to press. Country-specifi cdifference sare pos -
sible. Bear in min dthat your vehicle may no t
feature all function sdescribed here. Thi salso
applies to safety-relevan tsystems an dfunc-
tions.
Read th einformation on qualifie dspecialis t
workshop sin th evehicle Operator's Manual.
Important safet ynotes
GWARNING
If you operat emobile communication equip-
men twhil edriving, you will be distracted from
traffic conditions. You could also los econtro l
of th evehicle. There is aris kof an accident.
Only operat ethis equipment when th evehicle
is stationary.
You mus tobserv eth elegal requirements fo rth e
country in whic hyou are currentl ydrivin gwhen
operatin gmobile communication sequipment in
th evehicle.
Display settings
Setting th ebrightness
The brightness detecte dby th edisplay ligh tsen -
sor affects th esetting option sfo rthis function .
XPress theØ button.
or
XPress Vehicl ein themain function bar .
The vehicle men uis displayed.
XTo selec tSystem Settings:slid e6 ,turn
an dpress th econtroller to confirm .
A men uappears .
XTo selec tDispla y:turn an dpress th econ-
troller.
A men uappears .
XSelectBrightness.
A contro lappears .
XSelectth edesire dbrightness.
Display design
The display feature soptimize ddesign sfo rday-
time an dnight-time operation .You can set th e
design by manually selecting day or night design
or opt fo ran automatic setting .
XPress theØ button.
or
XPress Vehicl ein themain function bar .
The vehicle men uis displayed.
XTo selec tSystem Settings:slid e6 ,turn
an dpress th econtroller to confirm .
A men uappears .
XTo selec tDispla y:turn an dpress th econ-
troller.
A men uappears .
XSelectDa yMode,Nigh tModeor Auto.
The #dot indicates th ecurren tsetting .
DesignExplanation
DayModeThe display is set perma-
nently to day design .
NightModeThe display is set perma-
nently to night design .
AutomaticIn theAutomati csetting,
th emultimedia syste m
evaluates th ereadings
from th eautomatic vehi-
cl e ligh tsensor an dauto-
matically switches th edis -
play design .
34Display settings
System settings

XTo selectVehiclefrom the main function bar:
turn and press the controller.
XTo switch to the menu bar: slide 6the con-
troller.
XSelect System Settings.
The System Settingsmenu is displayed.
XSelect WiFi.
The WiFi menu appears.
XSelect Connect via WPS PIN.
XSelect the vehicle from the device to be con-
nected and "Connect using WPS PIN". The
vehicle is displayed with the SSID MB WLAN
XXXXX.
The device to be connected generates a PIN.
XAlso enter this PIN into the multimedia sys-
tem.
Connecting the device by pressing a
button (push button)
Requirement: for this type of connection, the
device to be connected must support "Connect
via push button".
XTo select Vehiclefrom the main function bar:
turn and press the controller.
XTo switch to the menu bar: slide 6the con-
troller.
XSelect System Settings.
The System Settingsmenu is displayed.
XSelect WiFi.
The WiFi menu appears.
XSelect Connect via WPS PBC.
XSelect the vehicle from the device to be con-
nected and ConnectviaWPSPBC. The vehi-
cle is displayed with the SSID MB WLAN
XXXXX.
XSelectContinuein the multimedia system.
Connecting the device via the security
key
XTo select Vehiclefrom the main function bar:
turn and press the controller.
XTo switch to the menu bar: slide 6the con-
troller.
XSelect System Settings.
The System Settingsmenu is displayed.
XSelect WiFi.
The WiFi menu appears.
XSelect Connect Using Security Key.
XSelect the vehicle from the device to be con-
nected. The vehicle is displayed with the SSID
MB WLAN XXXXX
.
XEnter the security key that appears on the
multimedia system display into the device to
be connected.
XConfirm the entry.
Generating a new security key
XTo select Vehiclefrom the main function bar:
turn and press the controller.
XTo switch to the menu bar: slide 6the con-
troller.
XSelect System Settings.
The System Settingsmenu appears.
XSelect WiFi.
The WiFi menu appears.
XSelect Generate Security Key.
XSelectRegenerate.
A new security key is generated.
XTo save the security key: turn the controller
and select Save.
The WiFi menu appears. The new security key
will now be displayed and verified when a
connection is established via the security key.
The connection must be re-established with
the newly created security key.
iDevice connections established using the
previous security key will no longer work after
the security key is changed. You have to
reconnect these devices (
Ypage 37).
Changing the name of the SSID
XTo select Vehiclefrom the main function bar:
turn and press the controller.
XTo switch to the menu bar: slide 6the con-
troller.
38WiFi
System settings

XSelectSystem Settings.
The System Settingsmenu is displayed.
XSelect WiFi.
The WiFi menu appears.
XSelect Change SSID.
A dialog for entering the SSID appears.
XEnter the new SSID.
XSelect ¬.
XPress the controller.
From now on, when establishing a connec-
tion, the vehicle will be shown with the new
SSID both on the device to be connected and
in the Connect
UsingSecurityKeymenu.
iDevice connections established using the
previous SSID will no longer work after the
SSID is changed. You have to reconnect these
devices (
Ypage 37).
Bluetooth®settings
General information about Blue-
tooth®
Bluetooth®-capable devices, e. g. mobile
phones, need to comply with a certain profile in
order to be connected to the multimedia sys-
tem. Every Bluetooth
®device has its own spe-
cific Bluetooth®name.
Bluetooth®technology is a standard for short-
range wireless data transmissions up to approx-
imately 10 m.
Yo u can use Bluetooth
®to connect your mobile
phone to the multimedia system, for example:
Ruse the hands-free system
Restablish an Internet connection
Rlisten to music using Bluetooth®Audio
Rexchange vCards
Bluetooth®is a registered trademark of Blue-
tooth Special Interest Group (SIG) Inc.
Activating/deactivating Bluetooth®
X
Press the Øbutton.
or
XPress Vehiclein the main function bar.
The vehicle menu is displayed.
XTo select System Settings: slide6, turn
and press the controller.
A menu appears.
XTo select Activate Bluetooth: turn and
press the controller.
This switches Bluetooth
®on O or off ª.
Automatic volume adjustment
General information
With the AutomaticVolumeAdjustmentfunc-
tion, the volumes of different audio sources are
adjusted for each other, to compensate for rel-
ative differences in volume.
For example: changing from a relatively quiet to
a relatively loud radio station. The volume for
both stations sounds the same. Manual read-
justment of the volume is not required.
The Automatic Volume Adjustment
function
is deactivated ªwhen the vehicle leaves the
factory. Using this function, the dynamic range
of the music is slightly reduced. To make the
most of the audiophile sound quality, it is rec-
ommended to leave it off.
Switching the automatic volume
adjustment on/off
XPress the Øbutton.
or
XPress Vehiclein the main function bar.
The vehicle menu is displayed.
XTo select System Settings: slide6, turn
and press the controller.
A menu appears.
XTo select Automatic Volume Adjustment:
turn and press the controller.
Switch the Automatic Volume Adjustment
function on Oor off ª.
Setting the system language
This function allows you to determine the lan-
guage for the menu displays and the navigation
messages. The selected language affects the
characters available for entry.
iThe navigation announcements are not
available in all languages. If a language is not
Setting the system language39
System settings
Z

ProblemPossible causes/consequences andMSolutions
TheNavigationUnavailable Pleaserefer to the Opera‐tor's Manual.mes-
sage appears.
The multimedia system has an integrated hard drive on which the
digital map is stored.
To protect the integrated hard drive against damage, the multimedia
system deactivates it at very high and low temperatures. The naviga-
tion system will then be temporarily unavailable.
XLet the vehicle and the multimedia system heat up or cool down to a normal temperature.
XTo hide the message: switch the multimedia system off and then
on again.
ProblemPossible causes/consequences and MSolutions
A message informs you
that the data medium
containing the digital
map is incompatible with
the vehicle software.The data medium containing the digital map cannot be used for the
update.
XTo confirm the message: press the controller.
XRemove the data medium.
XHave the system database checked at an authorized Mercedes-
Benz Center.
ProblemPossible causes/consequences andMSolutions
The map software
update has failed.The data medium is dirty.
XClean the data medium.
XRestart the update.
The data medium is scratched.
XConsult an authorized Mercedes-Benz Center.
There is overheating due to excessive temperatures in the vehicle
interior.
XWait until the vehicle interior has cooled down.
XRestart the update.
The multimedia system's integral hard disk has been physically dam-
aged.
XConsult an authorized Mercedes-Benz Center.
ProblemPossible causes/consequences andMSolutions
The multimedia system
asks for an activation
code during the map
update.The digital map is secured with an activation code.
XConsult an authorized Mercedes-Benz Center.
Problems with the navigation system89
Navigation
Z

The Bluetooth®device names for all of one man-
ufacturer's products might be identical. To
make it possible to clearly identify your mobile
phone, change the device name (see the man-
ufacturer's operating instructions). The name
can be freely selected.
If the mobile phone supports the PBAP (Phone
Book Access Profile) and MAP (M essage
Access Profile) Bluetooth
®profiles, the follow-
ing information will be transmitted after you
connect:
RPhone book
RCall lists
RMessages
Further information on allowing or suppressing
the automatic download of the phone book
(
Ypage 107).
The battery of the mobile phone should always
be kept sufficiently charged in order to prevent
malfunctions.
iNot all mobile phones available on the mar-
ket are equally suitable. You can obtain fur-
ther information about suitable mobile
phones and about the connection between
the mobile phone and the multimedia system
on the Internet at http://www.mercedes-
benz.com/connect .
You can also obtain more information by call-
ing.
In the USA, you can get in touch with the
Mercedes-Benz Customer Assistance Center
on 1-800-FOR-MERCedes (1-800-367-6372).
In Canada, you can get in touch with the Cus-
tomer Relations Center on 1-800-387-0100.
iSome displays (e.g. the signal strength)
depend on the supported version of the
Hands-Free Profile.
Procedure and general information
Searching for and authorizing (connecting)
a mobile phone
Before using your mobile phone with the multi-
media system for the first time, you will need to search for the phone (
Ypage 92) and then
authorize it (Ypage 93). Depending on the
mobile phone, authorization either takes place
by means of Secure Simple Pairing or by enter-
ing a passkey. The multimedia system automat-
ically makes the procedure that is relevant for your mobile phone available. You can recognize
Secure Simple Pairing by the fact that a code is
displayed on the mobile phone and on the mul-
timedia system. You can recognize the passkey
system by the fact that you have to enter a code
on the mobile phone and on the multimedia sys-
tem. The mobile phone is always connected
automatically after authorization.
If the multimedia system does not detect your
mobile phone, this may be due to particular
security settings on your mobile phone. You can
also start the search procedure and authoriza-
tion on the mobile phone (
Ypage 94).
Device-specific information on authorizing and
connecting Bluetooth
®-capable mobile phones
can be found on the Internet at http://
www.mercedes-benz.com/connect .
You can authorize up to 15 mobile phones. After
authorization, the connection of the last two tel-
ephones used always functions automatically.
Only one mobile phone can be connected to the
multimedia system at any one time.
De-authorizing (disconnecting) a mobile
phone
The connection is terminated automatically if
you leave the receiver range of the multimedia
system or deactivate Bluetooth
®on your mobile
phone.
If you no longer want the Bluetooth
®connection
to be established automatically, the mobile
phone must be de-authorized (disconnected)
(
Ypage 95).
Searching for a mobile phone
XTo call up the telephone menu: press the
% button.
XTo switch to the menu bar in the telephone
menu: slide 6the controller.
92Connecting/disconnecting a mobile phone
Telephone

XTo selectConnect Device: turn and press
the controller.
The device list is displayed.
XTo select Search for Phones: turn and
press the controller.
A message is displayed that Bluetooth
®must
be activated on the mobile phone and must be
made visible to other devices.
XTo select StartSearch: press the controller.
The available mobile phones are displayed in
the device list.
The duration of the search depends on the num- ber of Bluetooth
®telephones within range and
their characteristics.
If a new phone is found, it appears in the device list with the Ïsymbol. You can now author-
ize (connect) the mobile phone found
(
Ypage 93).
If the maximum number of authorized devices in
the device list is reached, you will be requested
to de-authorize a mobile phone (
Ypage 95).
When you call up the device list again, de-
authorized devices will be removed from the list.
To update the device list, start the search again.
Symbols in the device list
Sym-
bolExplanation
ÏNew mobile phone found, not yet
authorized.
ÑMobile phone is authorized, but is
not connected
#Mobile phone is authorized and
connected
Authorizing a mobile phone (connect-
ing)
Authorization via Secure Simple Pairing
If the multimedia system has found your mobile
phone, you can authorize (connect) it.
XTo select a mobile phone from the device list: turn the controller and press to confirm.
A code is displayed in the multimedia system
and on the mobile phone. The code is the same
XMultimedia system:
selectYes.
XMobile phone: confirm the code. Depending
on the mobile phone used, you may have to
confirm the connection to the multimedia sys-
tem and for the PBAP and MAP Bluetooth
®
profiles. The prompt to confirm may take up
to two minutes to be displayed. You may also
save the confirmation on the mobile phone
(see the manufacturer's operating instruc-
tions).
The mobile phone is now authorized and con-
nected to the multimedia system. You can
now speak using the hands-free system.
To ensure an optimum language quality, you can
set the mobile phone's transmission and recep-
tion volume (
Ypage 95).
The code is different
XMultimedia system: selectNo.
The process is canceled. Repeat the authori-
zation.
Authorization via passkey entry (access
code)
If the multimedia system has found your mobile
phone, you can authorize (connect) it.
XTo select the Bluetooth®name of the desired
mobile phone in the device list: turn and press
the controller.
The input menu for the passkey is displayed.
The passkey is a one- to sixteen-digit number
combination which you can choose yourself.
XMultimedia system: enter the passkey using
the character bar.
XSelect ¬once all the numbers have been
entered.
XMobile phone: enter the same passkey and
confirm your entry. Depending on the mobile
phone used, you may have to confirm the
connection to the multimedia system and for
the PBAP and MAP Bluetooth
®profiles. The
prompt to confirm may take up to two
minutes to be displayed. You may also save
the confirmation on the mobile phone (see the
manufacturer's operating instructions).
The mobile phone is now authorized and con-
nected to the multimedia system. You can
now speak using the hands-free system.
Connecting/disconnecting a mobile phone93
Telephone
Z

To ensure an optimum language quality, you can
set the mobile phone's transmission and recep-
tion volume (
Ypage 95).
If the Authorization Failed
message
appears, you may have entered a different pass-
key or exceeded the prescribed time limit.
Repeat the procedure.
iSome mobile phones require a passkey with
four or more digits.
iIf you wish to re-authorize the mobile phone
after de-authorizing it, you can choose
another passkey for it.
Establishing the connection from the
mobile phone
The Bluetooth®device name of the multimedia
system is MB Bluetooth.
XMultimedia system: call up the telephone
menu.
XTo switch to the menu bar: slide 6the con-
troller.
XTo select Connect Device: turn and press
the controller.
The device list is displayed.
XTo select Connect via Phone: turn and
press the controller.
A message is displayed, stating that you can
start the search on your mobile phone.
XMobile phone: start the search for a Blue-
tooth®device (see manufacturer's operating
instructions).
The multimedia system is displayed with the
name MB Bluetooth
in the mobile phone's
device list.
XSelect MB Bluetooth.
A prompt appears in the multimedia system's
display asking if the mobile phone should be
authorized.
XMultimedia system: selectYes.
If No
is selected, the procedure is canceled.
If your mobile phone supports Secure Simple
Pairing, a code is now displayed on both devi-
ces.
The code is the same
XMultimedia system: selectYes.
XMobile phone: confirm the code. Depending
on the mobile phone used, you may have to
confirm the connection to the multimedia sys- tem and for the PBAP and MAP Bluetooth
®
profiles. The prompt to confirm may take up
to two minutes to be displayed. You may also
save the confirmation on the mobile phone
(see the manufacturer's operating instruc-
tions).
The mobile phone is now authorized and con-
nected to the multimedia system. You can
now speak using the hands-free system.
To ensure an optimum language quality, you can
set the mobile phone's transmission and recep-
tion volume (
Ypage 95).
The code is different
XMultimedia system: selectNo.
The process is canceled. Repeat the proce-
dure.
If your mobile phone does not support Secure
Simple Pairing, an input menu is displayed for
the passkey. The passkey is a one- to sixteen-
digit number combination which you can choose
yourself. Enter the same passkey in both the
multimedia system and on the mobile phone and confirm. Depending on the mobile phone used,
you may have to confirm the connection to the
multimedia system and for the PBAP and MAP
Bluetooth
®profiles.
Reconnecting automatically
The multimedia system always searches for the
last connected mobile phone.
If no connection can be made to the most
recently connected mobile phone, the system
searches for the mobile phone that was con-
nected before that one.
Switching between mobile phones
If you have authorized more than one mobile
phone, you can switch between the individual
phones.
XTo call up the telephone menu: press the
% button.
XTo show the menu bar: slide 6the control-
ler.
94Connecting/disconnecting a mobile phone
Telephone