wheel MERCEDES-BENZ C-CLASS SALOON 2012 Repair Manual

The sy
stem update can be downloaded man‐
ually at a later time (/ page 284).
Yo u will be informed when the download is com‐
ple teand the sy stem update is ready for ins talla‐
tion.
% Park theve hicle safely in a suitable location
before starting the ins tallation.
Re quirements forth e ins tallation:
R The ignition is switched on.
R The engine is not running.
R Notes and warnings ha vebeen read and
accep ted.
R The parking brake is applied.
If all requirements are met, the sy stem update is
ins talled. The multimedia sy stem cann otbe
operated during the ins tallation and vehicle func‐
tions are restricted.
If er rors should occur during the ins tallation, the
multimedia sy stem automatically attem ptsto
re store the pr evious version. If restoration of the
pr ev ious version is not possible, a symbol
appears on the multimedia sy stem displa y.Con‐ sult a
qualified specialist workshop toresol ve
th e problem. Re
set function Multimedia sy
stem:
4 System 5
Reset
Pe rsonal data is dele ted, forex ample:
R Station presets
R Connec ted mobile phones #
Select Yes.
If PIN pr otection is activated, a prom ptappears
asking if you also wish torestore this to thefa c‐
to ry settings during a reset. #
Select Yes. #
Enter the cur rent PIN.
The PIN is reset.
or #
Select No.
The cur rent PIN stay sth e same af terre set‐
ting. %
Ifyo u ha veforg ottenyo ur PIN, a Mercedes-
Benz service centre can deactivate the PIN
pr otection foryo u.
A prom ptappears again asking whe ther you
re ally wish toreset. #
Select Yes.
The multimedia sy stem is reset tothefa ctory
settings. Fi
t & Healthy ENE
RGIZING COMFORT Overview of
the ENERGIZING COMFORT pro‐
gr amme
Programme overview
R Refresh: Can make targeted changes tothe
interior climate torefresh vehicle occupants.
Cooling air flow and ionisation purify the air.
The vehicle interior is illuminated with cool
colours and the seat is ventilated.
R Warmth: Can inc rease the comfort le vel of
th eve hicle occupants. The vehicle's panel,
seat and steering wheel heating pr ovide cosy Multimedia sy
stem 285
Internal use only

Switching navigation announcements on/off
Re
quirements:
R route guidance is active. #
Toswitch off: pressthevo lume control on
th e multifunction steering wheel during a
navigation announcement (/ page271).
or #
Press thevo lume control on the cent recon‐
sole du ring a navigation announcement
(/ page 271).
The Spoken driving recommendations have
been deactivated. messageappears.
or #
Show the navigation menu (/ page 287).#
Select !Driving recommendation .
The symbol changes to# . #
Toactivate: select#Driving recommen-
dation .
The cur rent navigation announcement is
pl ay ed. %
Inthefo llowing situations, navigation
announcements are switched on automati‐
cally:
R A new route guidance is star ted.
R The route is recalculated.
% You can add and call up this function as a
fa vo urite under Spoken driving recommenda-
tions on/off.
Swit ching navigation announcements on/off
during a phone call #
Select System. #
Select õAudio. #
Select Navigation and traffic announce-
ments. #
Swit chDriving recommendations during
phone call onO or off ª.
Ad justing the volume of navigation
announcements
Re quirements:
R Route guidance is active. #
On the multifunction steering wheel or
on the multimedia sy stem: turn thevo lume
control on the multifunction steering wheel
during a navigation announcement.
or #
Turn thevo lume control on the cent recon‐
sole du ring a navigation announcement
(/ page 272).
% Inthefo llowing situations, thevo lume is
ra ised tothe maximum volume or lo weredto
th e minimum volume:
R A new route guidance is star ted.
R The route is recalculated.
% The minimum volume can be individually set
at a Mercedes-Benz Service Cent re. #
Via sy stem settings: selectSystem. #
Select õAudio. #
Select Navigation and traffic announce-
ments. #
Select Driving recommendation volume. #
Set thevo lume. Multimedia sy
stem 301
Internal use only

#
Select Reception volume orTransmission
volume. #
Set thevo lume.
Fu rther information on there commended recep‐
tion and transmission volume: https://
www.me rcedes-benz-mobile.com/
Ad justing the call and ringtone volume
Multimedia sy stem:
4 System 5
õ Audio 5
Telephone #
Select Speech volume orRingtone volume .#
Set thevo lume.
St arting or stopping mobile phone voice rec‐
ognition
Re quirements:
R The mobile phone is connecte dto the multi‐
media sy stem (/ page316).
St arting mobile phone voice recognition #
Press and hold theó 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 #
Press the8 or~ button on the multi‐
function steering wheel. Calls
Te
lephone operation
Multimedia sy stem:
4 Telephone 5
ª Contacts
Making a call #
Select Numerical keypad. #
Ente rth e number. #
Select w.
The call is made.
Ac cepting a call #
Select Accept .
Re jecting a call #
Select Reject.
No ting an incoming call in "In-Car Of fice" #
If "In-Car Of fice" is available: select
Reminder (/page 326). Ending a call #
Select =.
Ac tivating functions during a call #
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 onO or off ª.
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 (/ page 320).
R Another call is being made.
Switching between calls #
Select call #.
The selected call is active. The other call is
on hold. 320
Multimedia sy stem
Internal use only

Apple CarPlay
®Overview of Apple CarPlay
®&
WARNING Risk of dist raction from infor‐
mation sy stems and communications
equipment
If yo u operate information and communica‐
tion equipment integ rated in theve hicle
when driving, you will be distracted from the
traf fic situation. This could also cause youto
lose control of theve hicle. #
Only operate this equipment when the
traf fic situation permits. #
Ifyo u cannot be sure of this, stop the
ve hicle whilst paying attention toroad
and traf fic conditions and ope rate the
equipment with theve hicle stationar y. Yo
u must obse rveth e legal requirements forthe
country in whi chyou are cur rently driving when
operating the multimedia sy stem.
iPhone ®
functions can be used via the multime‐
dia sy stem using Apple CarPlay ®
. They are oper‐
ated using the cent ral control element or theSiri
®
vo ice control sy stem. You can activate the
vo ice control sy stem bypressing and holding the
ó button on the multifunction steering wheel.
When using Apple CarPlay ®
with voice control,
th e multimedia sy stem can still be operated via
LINGU ATRO NIC (/ page 250).
Only one mobile phone at a time can be connec‐
te d via Apple CarPlay ®
to the multimedia sys‐
te m.
The availability of Apple CarPlay ®
may vary
according tothe count ry.
The service pr ovider is responsible forth is appli‐
cation and the services and conte nt connected
to it.
Apple CarPlay ®
is a regis tere d trademark of
Apple Inc.
Information on Apple CarPlay ®
While using Apple CarPlay ®
va rious functions of
th e multimedia sy stem, e.g. telephony or the
media sources Blue tooth ®
audio and iPod ®
, are
una vailable. Only one
route guidance can be active at a time.
If ro ute guidance is active on the multimedia sys‐
te m, it is closed when route guidance is star ted
on the mobile phone.
Connecting an iPhone ®
via Apple CarPlay ®
Re quirements:
R Apple ®
operating sy stem version iOS 8.3 or
abo veis ins talled on the iPhone ®
.
R An Internet connection is requiredforth e full
ra nge of functions for Apple CarPlay ®
.
R The iPhone ®
is connected tothe multimedia
sy stem via the USB port çusing a suita‐
ble cable (/ page 349).
Multimedia sy stem:
4 Connect 5
Apple CarPlay
Setting automatic or manual start
A messa geappears when connec tedfo rth efirst
time. #
Automatic star t:select Automatically.
Start automatically is activatedO. 328
Multimedia sy stem
Internal use only

Apple CarPl
ay®
will now start immediately
af te rth e iPhone ®
is connected tothe multi‐
media sy stem using a USB cable. #
Manual star t:select Manually . #
Select the iPhone ®
in the device list.
Ac cepting/rejecting the data pr otection reg‐
ulations
A message with the data pr otection regulations
appears. #
Select Accept & Start .
or #
Select Decline & End.
Exiting Apple CarPlay ®#
Press theò button on the multifunction
st eering wheel, forex ample.
% If Apple CarPlay ®
wa s not displa yed in the
fo re ground be fore disconnecting, the appli‐
cation starts in the bac kground when recon‐
nected. You can call up Apple CarPlay ®
in
th e main menu. Calling up Apple CarPlay
®
sound settings
Multimedia sy stem:
4 Connect 5
Apple CarPlay 5
Sound #
Select the sound menu (/ page 369).
Ending Apple CarPlay ®
Multimedia sy stem:
4 Connect 5
Apple CarPlay #
Select Disconnect.
The connection is ended.
The mobile phone continues tobe supplied
with elect ricity.
or #
Disconnect the connecting cable between
th e mobile phone and multimedia sy stem.
Mercedes-Benz recommends disconnecting
th e connecting cable only when theve hicle is
st ationar y. Android
Auto Android
Autoove rview &
WARNING Risk of dist raction from infor‐
mation sy stems and communications
equipment
If yo u operate information and communica‐
tion equipment integ rated in theve hicle
when driving, you will be distracted from the
traf fic situation. This could also cause youto
lose control of theve hicle. #
Only operate this equipment when the
traf fic situation permits. #
Ifyo u cannot be sure of this, stop the
ve hicle whilst paying attention toroad
and traf fic conditions and ope rate the
equipment with theve hicle stationar y. Yo
u must obse rveth e legal requirements forthe
country in whi chyou are cur rently driving when
operating the multimedia sy stem.
Mobile phone functions can be used with
Android Autousing the Android operating sys‐
te m on the multimedia sy stem. It is operated Multimedia sy
stem 329
Internal use only

using
the cent ral control element or voice con‐
trol sy stem. You can activate thevo ice control
sy stem bypressing and holding theó button
on the multifunction steering wheel.
When using Android Autowith voice control, the
multimedia sy stem can still be operated using
LINGU ATRO NIC (/ page 250).
Only one mobile phone at a time can be connec‐
te d via Android Autowith the multimedia sys‐
te m.
The availability of Android Autoand Android Auto
apps may vary according tothe count ry.
The service pr ovider is responsible forth is appli‐
cation and the services and conte nt connected
to it.
Information on Android Auto
While using Android Auto,va rious functions of
th e multimedia sy stem, forex ample the media
source Blue tooth ®
audio, are not available.
On lyone route guidance can be active at a time.
If ro ute guidance is active on the multimedia sys‐
te m, it is closed when route guidance is star ted
on the mobile phone. Connecting a mobile phone via Android
Auto
Requ irements:
R The firs t acti vation of Android Autoon the
multimedia sy stem must be car ried out when
th eve hicle is stationary for saf etyre asons.
R The mobile phone suppo rts Android Auto
from Android 5.0.
R The Android Autoapp is ins talled on the
mobile phone.
R In order touse thete lephone functions, the
mobile phone must be connected tothe mul‐
timedia sy stem via Blue tooth®
(/ page 316).
If th ere was no prior Internet connection, this
is es tablished with the use of the mobile
phone with Android Auto.
R The mobile phone is connected tothe multi‐
media sy stem via the USB port çusing a
suitable cable (/ page 349).
R An Internet connection is requiredforth e full
ra nge of functions for Android Auto. Multimedia sy
stem:
4 Connect 5
Android Auto #
Select the mobile phone from the device list.
Ac cepting/rejecting the data pr otection reg‐
ulations
A message with the data pr otection regulations
appears. #
Select Accept & Start .
or #
Select Decline & End.
Ac tivating automatic start #
Select Start automatically O.
St arting manually #
Select the mobile phone from the device list.
Exiting Android Auto #
Press theò button on the multifunction
st eering wheel, forex ample. 330
Multimedia sy stem
Internal use only

This allo
wsmeasu resfo rre scue, reco very or
to wing toa Mercedes-Benz Service Cent reto
be initiated quickl y.
If th e Mercedes-Benz emer gency call sy stem
cann otconnect tothe Mercedes-Benz emer‐
ge ncy call centre, the emer gency call is au tomat‐
ically sent tothe public emer gency services call
centre.
If no connection can be made tothe public
emer gency services, a cor responding message
appears inthe media displa y. #
Dial the emer gency call number 11 2onyour
mobile phone.
Ending an unin tentional emer gency call #
Select ~onthe multifunction steering
wheel.
Data transfer of the Mercedes-Benz emer‐
ge ncy call sy stem
In theeve nt of an auto matic or manual emer‐
ge ncy call thefo llowing data is transmitte d,for
ex ample:
R Vehicle's GPS position data R
GPS position data on thero ute (a few hun‐
dred metres before the incident)
R Direction of tra vel
R Vehicle identification number
R Vehicle drive type
R Number of people de term ined tobe in the
ve hicle
R Whe ther Mercedes me connect is available
or not
R Whe ther the emer gency call was initiated
manually or automatically
R Time of the accident
R Language setting on the multimedia sy stem
Fo r accident clarification purposes, thefo llowing
measures can be take n up toan hour af terthe
emer gency call has been initia ted:
R The cur rent vehicle position can be de ter‐
mined.
R Avo ice connection totheve hicle occupants
can be es tablished %
ForRu ssia: various functions, e.g. receiving
traf fic information, cannot be used for up to
two hou rsafte r sending an emergency call.
Self diagnosis function of the emer gency call
sy stem
Yo ur car verifies the operability of the emer‐
ge ncy call sy stem each time the ignition is ON.
In case of sy stem failure, you will be informed
with text messa geon the instrument clus ter and
with red indicator SOS NOT READY onthe dis‐
pla y.
Please, make sure, that during 30 seconds af ter
switching ignition ON there d indicator SOS
NOT READY inthe upper right corner of display
is switched OFF, this means the emer gency call
sy stem passed diagnostics successfully.
St arting/ending ERA-GLONASS test mode
Re quirements:
R The star ter battery is suf ficiently charge d.
R The ignition is switched on.
R The vehicle has been stationary for at least
one minute. Multimedia sy
stem 339
Internal use only

%
The test mode is cur rently available in the
fo llowing countries, forex ample:
R Russia
R Belarus
R Kazakh stan
R Armenia
R Kyrgyzs tan #
Tostart thete st mode: press and hold the
~ button on the multifunction steering
wheel for at least five seconds.
The test mode is star ted and automatically
ends af terth e language test has been per‐
fo rm ed. #
Toend thete st mode manuall y:switch off
th e ignition.
The test mode is ended. Online and Internet functions
Internet connection
Information on connecting
tothe Internet &
WARNING Risk of dist raction from infor‐
mation sy stems and communications
equipment
If yo u operate information and communica‐
tion equipment integ rated in theve hicle
when driving, you will be distracted from the
traf fic situation. This could also cause youto
lose control of theve hicle. #
Only operate this equipment when the
traf fic situation permits. #
Ifyo u cannot be sure of this, stop the
ve hicle whilst paying attention toroad
and traf fic conditions and ope rate the
equipment with theve hicle stationar y. Yo
u must obse rveth e legal requirements forthe
country in whi chyou are cur rently driving when
operating the multimedia sy stem. &
WARNING Risk of an accident from
ope rating mobile communication equip‐
ment while theve hicle is in motion
Mobile communications devices distract the
driver from the traf fic situation. This could
also cause the driver tolose control of the
ve hicle. #
Asthe driver, only operate mobile com‐
munications devices when theve hicle is
st ationar y. #
As a vehicle occupant, only use mobile
communications devices in the areas
intended forth is purpose, e.g. in the
re ar passenger compartment. Yo
u must obse rveth e legal requirements forthe
country in whi chyou are cur rently driving when
operating mobile communication equipment in
th eve hicle. 340
Multimedia sy stem
Internal use only

#
Todeactivate full-sc reen mode: select
%. Ac
tivating or deactivating the frequency fix
function Multimedia sy
stem:
4 Radio 5
Z Options 5
Frequency fix #
Activate Oor deacti vate ª the function.
If th e function is activated, the set frequency
is ke pt eve n ifthere ception is poo r. Ta
gging music trac ks Multimedia sy
stem:
4 Radio
If ra dio stations pr ovide there leva nt information,
th is function allo wsyouto trans fer information
on the music track cur rently pl aying toan
Apple ®
device. You can then pur chase the audio
fi le from iTunes ®
. #
Select ♫→ Tag this song.
The track information is sa ved. Switching traf
fic announcements on/off Multimedia sy
stem:
4 System 5
õ Audio
5 Navigation and traffic announcements #
Activate Oor deacti vate ª the function.
or #
Press and hold the8 button on the multi‐
function steering wheel. Setting
the traf fic information service vol‐
ume increase Multimedia sy
stem:
4 System 5
õ Audio
5 Navigation and traffic announcements #
Select Traffic announcements volume
increase. #
Select No increase or avalue. Ac
tivating/deactivating radio text Multimedia sy
stem:
4 Radio 5
Z Options
5 Display radio text information #
Activate Oor deacti vate ª the function. TV
Information on
TVmode In
fo rm ation on copy right pr otection and
trademarks
Ubiquitous DTCP-MOST
Copyright ®
20 15 Ubiquitous Corp.
DV B and DVB logos are trademark s oftheDVB
Project.
The TVtuner enables reception of digital chan‐
nels according tothefo llowing standards:
R DVB-T
R DVB-T2
In some countries, thest andards may not be
av ailable, or may not be available in all areas. Multimedia sy
stem 361
Internal use only

ASS
YST PLUS se rvice inter val display Fu
nction of the ASS YST PLUS se rvice inter val
displ ay The ASS
YST PLUS service inter val display on the
instrument display pr ovides information on the
re maining time or dis tance be fore the next
service due date.
Yo u can hide this service display using the back
button on the left-hand side of thesteering
wheel.
Depending on how theve hicle is used, the
ASS YST PLUS service inter val display may
shor tenth e service inter val, e.g. in thefo llowing
cases:
R mainly short-dis tance driving
R when the engine is of ten le ftidling for long
periods
R intheeve nt of frequent cold start phases
R vehicles with a diesel particulate filter: in
th eev ent of frequently inter rupted rege nera‐
tion of the diesel particulate filter Mercedes-Benz
recommends avoiding such
operating conditions.
Yo u can obtain information concerning the serv‐
icing of your vehicle from a qualified specialist
wo rkshop, e.g. a Mercedes-Benz Service Centre. Displaying
the service due da te On-board computer:
4 Service 5
ASSYST PLUS
The next service due date is displa yed. #
Toexitth e displa y:press the back button
on the left-hand side of thesteering wheel.
Bear in mind thefo llowing related topic:
R Operating the on-board computer
(/ page 246). Infor
mation on regular maintenance work *
NO
TEPremature wearthro ugh failure to
obser veservice due dates Maintenance
workwhich is not car ried out at
th eright time or incomple tely can le adto
inc reased wear and damage totheve hicle. #
Adhere tothe prescribed service inter‐
va ls. #
Alw ays ha vethe prescribed mainte‐
nance workcar ried out at a qualified
specialist workshop. Special service
requ irements The prescribed service inter
val is based on nor‐
mal operation of theve hicle. Maintenance work
will need tobe per form ed more of ten if theve hi‐
cle is operated under arduous conditions or
increased loads.
The ASS YST PLUS service inter val display is only
an aid. The driver of theve hicle bears responsi‐
bility as rega rdsto whe ther maintenance work
needs tobe per form ed more of tenth an speci‐ 372
Maintenance and care
Internal use only