steering MERCEDES-BENZ C-CLASS COUPE 2021 Workshop Manual

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 connec tedto the multi‐
media sy stem (/ page 305).
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 315).
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 309).
R Another call is being made.
Switching between calls #
Select call #.
The selected call is active. The other call is
on hold.
Ac tivating or ending a call on hold #
Select Continue call orEnd call. Multimedia sy
stem 309

Apple CarPlay
® Overview of Apple CarPlay
®&
WARNING Risk of di stra ction 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.
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 338).
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.
Apple CarPlay ®
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. Multimedia sy
stem 317

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 358). 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 di stra ction 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
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.
Only one mobile phone at a time can be connec‐
te d via Android Autowith the multimedia sys‐
te m. 318
Multimedia sy stem

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 displa y. #
Dial the emer gency call number 11 2onyour
mobile phone.
If an eme rgency call has been initiated:
R Remain in theve hicle if thero ad and traf fic
conditions permit youto do so until a voice
connection is es tablished with the emer‐
ge ncy call centre operator.
R Based on the call, the operator decides
whe ther it is necessary tocall rescue teams
and/or the police tothe accident site.
R If no vehicle occupant answers, an ambu‐
lance is sent totheve hicle immediately.
Tr iggering a manual emer gency call #
Press and hold the SOS button in theove r‐
head control panel for at least one second. The emer
gency call has been made:
R Avo ice connection is made tothe Mercedes-
Benz emer gency call centre.
R A messa gewith accident data is transmit ted
to the Mercedes-Benz emer gency call centre.
The Mercedes-Benz eme rgency call cent re
can transmit theve hicle position data toone
of the public emer gency services call cen‐
tres.
R Remain in theve hicle if thero ad and traf fic
conditions permit youto do so until a voice
connection is es tablished with the emer‐
ge ncy call centre operator.
R Based on the call, the operator decides
whe ther it is necessary tocall rescue teams
and/or the police tothe accident site.
R In cer tain situations data is also transmitted
in thevo ice channel tothe Mercedes-Benz
emer gency call centre.
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 au tomatic 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 Multimedia sy
stem 327

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.
% 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. 328
Multimedia sy stem

#
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 ksMultimedia 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
tradema rks
Ubiquitous DTCP-MOST
Copyright ®
20 15 Ubiquitous Corp.
DV B and DVB logos are tradema rks of theDVB
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. 350
Multimedia sy stem

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 235). Information 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‐ Main
tenance and care 361

#
Left-hand drive vehicle: pulltab1
upwards. #
Right-hand drive vehicle: pulltab1 down‐
wa rds. #
Remo vefire extinguisher 2. Flat tyre
Note
s onflat tyres &
WARNING Risk of accident due toaflat
tyre
A flat tyre se verely affects the driving charac‐
te rist ics as well as thesteering and braking
of theve hicle.
Ty res without run-flat characteristics: #
Do not drive with a flat tyre. #
Chan getheflat tyre immediately with
an emer gency spa rewheel or spare
wheel. Alternativel y,consult a qualified
specialist workshop.
Ty res with run-flat characteristics: #
Obse rveth e information and warning
no tes on MOExtended tyres (run-flat
tyres). In
theeve nt of a flat tyre, thefo llowing options
are available depending on your vehicle's equip‐
ment:
R Vehicles with MOExtended tyres: it is pos‐
sible tocontinue the journey for a short
period of time. Make sure you obse rvethe
no tes on MOExtended tyres (run-flat tyres)
(/ page 379).
R Vehicles with a TIREFIT kit: you can repair
th e tyre so that it is possible tocontinue the
jou rney for a short period of time. Todo this,
use the TIREFIT kit (/ page 380).
R Vehicles with Mercedes me connect: you
can make a call for breakdown assi stance via
th eove rhead control panel in the case of a
breakdown (/ page 320).
R Allvehicles: change the wheel
(/ page 409). 378
Breakdown assis tance

Note
s on MOExtended tyres (run-flat tyres) &
WARNING Risk of accident when driving
in li mp-home mode
Driving in emergency mode impairs the han‐
dling characteristics of theve hicle. #
Do not exceed the permissible maxi‐
mum speed of the MOEx tended tyres. #
Avoid any abrupt steering and driving
manoeuvres as well as driving over
obs tacles (kerbs, pot holes, off-road).
This applies, in pa rticular, toa loaded
ve hicle. #
Stop driving in the emer gency mode if
yo u notice:
R banging noise
R vehicle vibration
R smoke which smells like rubber
R continuous ESP ®
inter vention
R crac ksinthe tyre side walls #
After driving in emergency mode, ha ve
th erims checkedby aqu alified special‐ ist
workshop with rega rd totheir fur ther
use. #
The defective tyre must be replaced in
eve rycase. Wi
th MOExtended tyres (run-flat tyres), you can
continue todrive your vehicle even if there is a
tot al loss of pressure in one or more tyres. How‐
eve r,th e tyre af fected must not show any clearly
visible damage.
Yo u can recognise MOExtended tyres bythe
MOExtended marking which appears on the side
wa ll of the tyre.
Ve hicles with tyre pressure loss warning sys‐
te m: MOExtended tyres may only be used in
conjunction wi than activated tyre pressure loss
wa rning sy stem.
Ve hicles with tyre pressure monitoring sys‐
te m: MOExtended tyres may only be used in
conjunction wi than activated tyre pressure mon‐
itoring sy stem. If a pressure loss
warning message appears in
th e multifunction displa y,proceed as follo ws:
R Check the tyre for dama ge.
R If driving on, obser vethefo llowing no tes.
Driving distance possible in emer gency
mode af ter the pressure loss warning: Load condition Driving distance pos‐
sible in emergency
mode
Pa rtially laden 80 km
Fu lly laden 30 km The driving dis
tance possible in emergency
mode may vary depending on the driving style.
Obser vethe maximum permissible speed of
80 km/h.
If a tyre has gone flat and cannot be replaced
with an MOEx tended tyre, you can use a stand‐
ard tyre as a temp orary measure. Breakdown assis
tance 37 9

Battery (vehicle)
Note
s onthe12 V battery &
WARNING Risk of an accident due to
wo rkcar ried out incor rectly on the bat‐
te ry
Wo rkcar ried out incor rectly on the battery
can, forex ample, lead toa short circuit. This
can restrict functions releva nt for saf ety sys‐
te ms and impair the operating saf ety of your
ve hicle.
Yo u could lose cont rol of theve hicle in the
fo llowing situations in particular:
R when braking
R intheeve nt of ab rupt steering manoeu‐
vres and/or when theve hicle's speed is
not adap tedto thero ad conditions #
Intheeve nt of a sho rtcircuit or a simi‐
lar incident, contact a qualified special‐
ist workshop immediately. #
Do not drive on. #
Alw ays ha vewo rkon the battery car ried
out at a qualified specialist workshop. R
Further information on ABS (/ page177)
R Further information on ESP ®
(/ page 177)
Fo r saf etyre asons, Mercedes-Benz recommends
th at you on lyuse bat teries which ha vebeen tes‐
te d and appr ovedfo ryo ur vehicle byMercedes-
Benz.
All vehicles except vehicles with a lithium-
ion battery &
WARNING Risk ofexplosion due toelec‐
tros tatic charge
Electros tatic charge can igni tethe highly
ex plosive gas mixture in the batter y. #
Todischar geany electros tatic charge
th at may ha vebuilt up, touch the me tal
ve hicle body before handling the bat‐
te ry. The highly
flammable gas mixture is created
while the battery is charging and during starting
assis tance. &
WARNING Danger of chemical burns
from the battery acid
Battery acid is caustic. #
Avoid contact with the skin, eyes or
clo thing. #
Do not lean overth e batter y. #
Do not inhale battery gases. #
Keep children away from the batter y. #
Immedia tely rinse battery acid off thor‐
oughly with plenty of clean water and
seek medical attention immediately. Breakdown assi
stance 385