2015 MERCEDES-BENZ C-CLASS COUPE wheel

Display messages
Possible causes/consequences and
M
MSolutions Ð
Power steering mal‐ Power steering mal‐
function See Own‐ function See Own‐
er'
sM anual
er' sM anual The powe
rsteering assistanc eisfaulty.
Aw arning tone also sounds.
G WARNING
You will need to use mor eforce to steer.
There is ariskofana ccident.
X Chec kwhether you are able to apply th eextra force required.
If you ar eabletos teer safely:
X Drive on carefully.
X Consult aqualified specialist workshop immediately.
If you ar eunable to steer safely:
X Do no tdrive on.
X Consult aqualified specialist workshop. Ð
Steering malfunc‐ Steering malfunc‐
tio
nS ee Owner's
tio nS ee Owner's
Manual Manual Vehicl
ewithm anual transmission :the electric steering loc kismal-
functioning.
G WARNING
The steering may be locke dbytheelectric steering lock.
There is ariskofana ccident.
X Pull ove rand stop th evehicl esafely as soo naspossible, paying
attention to roa dand traffic conditions.
X Safeguar dthe vehicl eagainst rollin gaway (Y page 172).
X Do no tdrive on.
X Consult aqualified specialist workshop. _
Before Before
starting
starting the
the
engine ,turnt he
engine ,turnt he
steering wheel.
steering wheel. Vehicl
ewithm anual transmission :the electric steering loc kismal-
functioning.
X Remove th ekeyfrom th eignition lock.
X To unloc kthe steering ,movet he steering whee lslightly.
X Inser tthe keyintot he ignition loc kagain. Telephone Telephone
No
Noservice
service Your vehicl
eisoutside th enetwork provider' stransmitter/receiver
range.
X Wait until th emobile phone operational readiness symbol appears
in th emultifunction display. ¥
Top up washer fluid Top up washer fluid The washer flui
dlevel in th ewasher flui dreservoir has dropped below
th em inimum.
X Top up th ewasher flui d(Ypage 325). Display
messages
283On-boardcomputer an ddisplays Z

Warning/
indicator
lamp
N N
Signal type
Possiblec auses/consequences and M
MSolutions !
N
The yellow ABS warning lamp is lit while the engine is running.
ABS (Anti-lock Braking System) is faulty.
An additiona lwarning tone indicates that EBD (electronic brake force distribution)
is faulty.
Other driving and driving safety systems may alsobef aulty.
G WARNING
The brake system continues to function normally, but without the functions listed above. The front and rear wheels coul dtherefore lock, for example, if you brake
hard.
The steerability and braking characteristics may be severely affected. The braking
distance may increas einanemergency braking situation.
If ESP ®
is not operational ,ESP ®
is unable to stabilise the vehicle.
There is an increased dange rofskidding and risk of an accident.
X Observe the additiona ldisplay messages in the multifunction display.
X Drive on carefully.
X Consult aqualified specialist worksho pimmediately.
If the ABS control unit is faulty, there is alsoap ossibility that other systems,such
as the navigation system or the automatic transmission, willbeu navailable.J÷
!
N
The red brake system warning lamp and the yellow ESP ®
and ABS warning lamps
light up while the engine is running.
ABS and ESP ®
are faulty.
Other driving and driving safety systems may alsobef aulty.
G WARNING
The brake system continues to function normally, but without the functions listed above. The front and rear wheels coul dtherefore lock, for example, if you brake
hard.
The steerability and braking characteristics may be severely affected. The braking
distance may increas einanemergency braking situation.
If ESP ®
is not operational ,ESP ®
is unable to stabilise the vehicle.
There is an increased dange rofskidding and risk of an accident.
X Observe the additiona ldisplay messages in the multifunction display.
X Drive on carefully.
X Consult aqualified specialist worksho pimmediately. Warning and indicator lamps in the instrument cluster
287On-board computer and displays Z

General notes
The multimedia system section in this manual
describes the basi cprinciples for operation.
More information can be found in the Digital
Owner's Manual. Important safety notes
G
WARNING
Operating the integrated information systems and communications equipment in the vehicle
whil edriving willd istract you from traffic con-
ditions. You could then lose control of the
vehicle .There is arisk of an accident.
Only operate these devices if road traffic con-
ditions permit. If you are unsure aboutt he
surrounding conditions, pullo ver toasafe
locatio nand make entries only whilet he vehi-
cle is stationary.
You must observe the legalr equirements for the
country in which you are currently driving when operating the multimedia system.
The multimedia system calculates the route to
the destination withou ttaking the following into
account, for example:
R traffic lights
R stop and give way signs
R parking or stopping restrictions
R road narrowing
R other road and traffic rulesa nd 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:
R ad iverted route
R the road layout or the direction of aone-way
street has been changed
For this reason, you must alwayso bserve road
and traffic rulesa nd regulations during your
journey. Roada nd traffic rulesa nd regulations
alwaysh ave priority over multimedia system
driving recommendations. Function restrictions
For safety reasons, some functions are restric-
ted or unavailable whilet he vehicle is in motion.
You willn otice this, for example, because either
you willn ot be abletos elect certain menu items
or am essag ewilla ppear to this effect. Operating system
Overview
General notes !
Do not use the space in front of the display
for storage. Objects placed here could dam-
age the display or impair its function. Avoid
any direct contact with the display surface.
Pressure on the display surface may resul tin
impairments to the display,w hich could be
irreversible.
Wearing polarised sunglasses may impair your
ability to read the display.
The display has an automatic temperature-con- trolled switch-off feature .The brightness is
automaticall yreduced if the temperature is too
high. If necessary ,the display may temporarily
switch off completely.
Cleaning instructions !
Do not touch the display.T
he display has a
very sensitive high-gloss surface; there is a
risk of scratching. If you have to clean the
screen, however, use amild cleaning agent
and asoft, 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 X
Press the ubutton on the centre console
to the right of the controller.
For Mercedes-AMG vehicle swith selectable
AMG Performance exhaust system: press the
thumbwheel to the right of the controller. 296
Operating systemMultimedia system

Adjusting th
evolume X
Turn th ethumbwheel on th eright of th econ-
troller.
The volume is adjusted:
R for th ecurrentl yselected media source
R during traffic or navigation announcements
R in hands-free mod eduring aphone call
Switchin gthe soun don/off This function is no
tavailable for Mercedes-AMG
vehicles wit hselectable AM GPerformance
exhaust system.
X Press th ethumbwheel to th eright of th econ-
troller.
If th eaudio output is switched off ,the status
lin ew ill sho wthe 8 symbol. If you switch
th em edia source or set th evolume, th esound
is automatically switched on.
i Navigation message
swill be hear devenif
th es oun dism uted.
Functions The multimedia system has th
efollowin gfunc-
tions:
R radi omode
R media mod ewithm edia search
R soun dsystems
R navigation system
COMAND Online: navigation via th ehardd rive
Audio 20 :navigation via SD card
R communication functions
R vehicl efunction swiths ystem settings
R favourite sfunctions
Controller The controller in th
ecentre console let syou:
R select men uitems on th edisplay
R ente rcharacters
R select adestination on th emap
R sav eentries
The controller can be:
R turned 3
R slid lef torright1
R slid forward sorback4 R
slid diagonally 2
R presse dbriefl yorp ressedand held 7
Back button You can use the
%buttontoe xitam enuorto
call up th ebasic display of th ecurren toperating
mode.
X To exit th emenu: brieflypress the %
button.
The multimedia system changes to th enext
higher men ulevel in th ecurren toperating
mode.
X To call up th ebasic display: press the%
butto nfor longer than two seconds.
The multimedia system changes to th ebasic
display of th ecurren toperating mode. Touchpad
Switchin gthe touchpad on/off Multimedia system:
X Select Vehicle
VehicleQSy stem set‐
System set‐
tings tingsQ Activate touchpad
Activate touchpad.
The touchpad is activated Oor deactivated
ª.
Operating th etouchpad :
Touch-sensitive surface
; Favourite sbutton
= Calls up audio and telephon emenu( quick
access)
? Return stotheprevious display Operating system
297Multimedia system Z

for example, request an appointment or call for
help in the event of abreakdown.
The Audi o20/COMAND Online display indi-
cates that acall is active. During the call ,you
can change to the navigation menu by pressing
the NAVI button on the multimedi asystem ,for
example.
Voice outpu tisnot available in this case.
You can find more information on Mercedes-
Benz Contact in the separate multimedi asys-
tem operating instructions.
Breakdown assistance call button X
To call breakdow nassistance: press but-
ton :for breakdown assistance.
The breakdown assistance call is initiated.
The Connecting call
Connecting call message appears in
the multifunction display .The audio system is
muted.
Only in certain countries :avoice message
prompts you to confirm the data transmis-
sion. After confirmation, the required vehicle
data is transmitted. During data transmission, you wil lsee acorresponding symbol in the
display .This may take amoment. You are
then connected to an employee.
X To end acall: press the ~button on the
multifunction steering wheel.
or X Press the corresponding multimedi asystem
button for ending aphone call.
Info call button This function is not available in all countries. X
To call: press info call button :.
The breakdown assistance call is initiated.
The Connecting call Connecting call message appears in
the multifunction display .The audio syste mis
muted.
Only in certain countries :avoice message
prompts you to confirm the data transmis-
sion. After confirmation, the required vehicle
data is transmitted. During data transmission,
you wil lsee acorresponding symbol in the
display .This may take amoment. You are
then connected to an employee.
X To end acall: press the ~button on the
multifunction steering wheel.
or
X Press the corresponding multimedi asystem
button for ending aphone call. Floormats
G
WARNING
Objects in the driver's footwell may restrict
the clearance around the pedals or block a
depressed pedal. This jeopardise sthe oper-
ating and road safety of the vehicle. There is a risk of an accident.
Stow all objects securely in the vehicl esothat
they do not get into the driver's footwell.
Always fit the floormats securely and as pre-
scribe dinorder to ensure that there is always
sufficient room for the pedals. Do not use
loos efloormats and do not place severa lfloor-
mats on top of one another. Features
319Stowing and features Z

X
Turn cap :further anti-clockwise and
remove it.
If the coolant is at the level of marker bar =
in the filler neck when cold, there is enough
coolant in coolant expansion tank ;.
If the coolant level is approximately 1.5 cm
above marker bar =in the filler neck when
warm, there is enough coolant in coolant
expansion tank ;.
X If necessary, top up with coolant that has
been tested and approved by Mercedes-Benz.
X Replace cap :and turn it clockwise as far as
it will go.
Further information on coolant (Y page 376).
Topping up the windscreen washer sys- tem X
To open: pull cap:upwards by the tab and
open.
X Top up with the premixed washer fluid.
X To close: press cap :ontot he filler neck
until it engages.
If the washer fluid level drops below the recom- mended minimum of 1litre, amessage appears
in the multifunction display promptin gyou to
top up the washer fluid (Y page 283).
Further information on windscreen washer
fluid/antifreez e(Ypage 377). ASSYST PLUS
Service message
The ASSYST PLUS service interval display
inform syou of the next service due date.
Information on the type of service and service
intervals (see the separate Servic eBooklet). You can obtain further information from a
Mercedes-Benz Servic
eCentre.
i The ASSYST PLUS service interval display
does not show any information on the engine oil level. Observe the notes on the engine oil
level (Y page 323).
The multifunction display shows aservice mes-
sage for afew seconds, e.g.:
R Service AinXXd ays
Service AinXXd ays
R Service Adue
Service Adue
R Service Aoverdue by XX days
Service Aoverdue by XX days
Dependin gonthe operating conditions of the
vehicle, the remaining time or distance until the
next service due date is displayed.
The letter indicates which service is due. A A
stands for aminor service and B
Bfor am ajor ser-
vice. Anumber or another letter may be dis-
played after the letter.
Only for certain countries: the position after the
letter A
A or B Bindicates any necessary additional
maintenance work. If you notify aqualified spe-
cialist workshop of this display ,you will receive
as tatement on the associated costs.
The ASSYST PLUS service interval display does
not take into account any periods of time during which the battery is disconnected.
Maintaining the time-dependent service sched-
ule:
X Note down the service due date displayed in
the multifunction display before disconnect-
ing the battery.
or
X After reconnecting the battery, subtract the
battery disconnection periods from the ser-
vice date shown on the display. Hiding service messages
X Press the aor% button on the steering
wheel. Displaying service messages
X Switch the ignition on.
X Use ò on the steerin gwheel to call up the
list of menus. ASSYST PLUS
325Maintenance and care Z

X
Press 9or: on the steerin gwheel to
select the Service
Servicemenu and confirm with
a.
X Press 9or: on the steerin gwheel to
select the ASSYST PLUS
ASSYST PLUS submenu and con-
firm with a.
The service due date appears in the multi-
function display. Information about service
Resetting the ASSYST PLUS service
interva ldisplay !
If the ASSYST PLUS service interval display
has been inadvertently reset, this setting can
be corrected at aqualified specialist work-
shop.
Have service work carried out as described in the Servic eBooklet .This may otherwise lead
to increased wear and damage to the major
assemblies or the vehicle.
Aq ualified specialist workshop, e.g. a
Mercedes-Benz Servic eCentre, will reset the
ASSYST PLUS service interval display after the
service work has been carried out. You can also
obtain further information on maintenance
work, for example.
Special service requirements The prescribed service interval is based on nor-
mal operation of the vehicle. Servic ework will
need to be performed more often if the vehicle is
operated under arduous conditions or increased loads, for example:
R regular city driving with frequent intermediate
stops
R if the vehicle is primarily used to travel short
distances
R for frequent operation in mountainous terrain
or on poor road surfaces
R if the engine is often left idling for long periods
In these or similar operating conditions, have,
for example, the air filter, engine oil and oil filter changed more frequently. The tyres must be
checked more frequently if the vehicle is oper-
ated under increased loads. Further informationcan be obtained at aqualified specialist work-
shop, e.g. aMercedes-Benz Servic eCentre. Driving abroad An extensive Mercedes-Benz Servic
enetwor kis
also availabl einother countries. You can obtain
further information from any Mercedes-Benz
Servic eCentre. Care
General notes
H
Environmenta
lnote
Dispose of empty packaging and cleaning
cloths in an environmentally responsible man-
ner.
! For cleaning your vehicle, do not use any of
the following:
R dry, rough or hard cloths
R abrasive cleaning agents
R solvents
R cleaning agents containing solvents
Do not scrub.
Do not touch the surfaces or protective films
with hard objects, e.g. aring or ice scraper.
You could otherwise scratch or damage the
surfaces and protective film.
! Do not park up the vehicle for an extended
period straight after cleaning it, particularly
after having cleaned the wheels with wheel
cleaner. Wheel cleaners could cause
increased corrosion of the brake discs and
brake pads/linings. For this reason, you
should drive for afew minutes after cleaning.
Brakin gheats the brake discs and the brake
pads/linings, thus drying them. The vehicle
can then be parked up.
Regula rcare of your vehicle is acondition for
retainin gthe quality in the long term.
Use care products and cleaning agents recom-
mended and approved by Mercedes-Benz. 326
CareMaintenance and care

Washing the vehiclea
nd cleaning the
paintwork
Automatic car wash G
WARNING
Braking efficiency is reduced after the vehicle has been washed .There is arisk of an acci-
dent.
After washing the vehicle, brake carefully
while paying attention to the traffic conditions in order to restore full braking efficiency.
! When DISTRONIC PLUS or the HOLD func-
tion is activated, the vehicl ebrakes automat-
ically in certain situations.
To avoi ddamage to the vehicle, deactivate
DISTRONIC PLUS and the HOLD function in
the following or similar situations:
R when towing away
R in ac ar wash
! Make sure:
R the side windows and sliding sunroo fare
close dcompletely.
R the blower for the ventilation/heating is
switched off (OFF button is depressed).
R the windscreen wiper switch is at position
0
R the 360° camera or reversing camera is
switched off.
The vehicl ecouldo therwise be damaged.
! If the key is withi
nthe rear detection range
of KEYLESS-GO, the following situations, for
example, coul dleadtot he boot lid opening
unintentionally:
R using acar wash
R using ahigh-pressure cleaner
Make sure that the key is at least 3maway
from the vehicle.
! Make sure that the automatic transmission
is in neutral position Nwhen washing your
vehicl einat ow-through car wash. The vehicle
may otherwise be damaged.
R Operating with the key:
Do not remove the key from the ignition
lock. Do not open the driver's door when
the engine is switched off or at very low
speeds. Otherwise, whe nintransmission position
Dor Rthe automatic transmission
wil lautomatically switch to park position P
and block the wheels.
R Operating with the Start/Stop button:
Do not open the driver's door whe nthe
engine is switched off or at very low
speeds. Otherwise, whe nintransmission
position Dor Rthe automatic transmission
wil lautomatically switch to park position P
and block the wheels.
Observe the following to make sure that the
automatic transmission stay sinneutral position
N:
Operating with the key and Start/Stop button:
X Make sure the ignition is switched on.
X Make sure that the vehicl eisstationary.
X Depress the brake peda land keep it
depressed.
Operating with the Start/Stop button only: X Engage park position P.
X Releas ethe brake pedal.
X Remove the Start/Stop button from the igni-
tion lock (Y page145).
X Insert the key into the ignition lock.
X Switch on the ignition.
X Depress the brake peda land keep it
depressed.
Operating with the key and Start/Stop button:
X Select neutral N.
X Releas ethe brake pedal.
X Releas ethe electric parking brake, if neces-
sary.
X Switch off the ignition and leave the key in the
ignition lock.
You can wash the vehicl einanautomatic car
wash from the very start.
Was hoff excess dirt before cleaning the vehicle
in an automatic car wash.
After using an automatic car wash, wip eoff wax
from the windscreen and the wiper blades. This
wil lprevent smears and reduce wiping noises
caused by residue on the windscreen.
Washing by hand In some countries
,washing by hand is only
allowe datspeciall yequipped washing bays. Care
327Maintenance and care Z