2015 MERCEDES-BENZ C-CLASS COUPE warning light

Problems with the steering wheel heating
Problem
Possible causes/consequences and
M
MSolutions The steering wheel heat-
ing has switched itself
off prematurely or can-
not be switched on. The on-board voltage is too low because too many electrical consum-
ers are switched on.
X Switch off electrical consumers that you do not need, such as the
rear window heating or interior lighting. EASY-ENTRY/EXIT feature
Important safety notes G
WARNING
When the EASY-ENTRY/EXIT feature adjusts
the steering wheel, you and other vehicle
occupants –particularly children –could
become trapped. There is arisk of injury.
While the EASY-ENTRY/EXIT feature is mak-
ing adjustments, make sure that no one has
any body parts in the sweep of the steering
wheel.
Move the steering wheel adjustment lever if
there is arisk of entrapment by the steering
wheel. The adjustment process is stopped.
Press one of the memory function position but-
tons. The adjustment process is stopped. This
function is only available on vehicles with a
memory function. G
WARNING
If children activate the EASY-ENTRY/EXIT fea- ture, they can become trapped, particularly
when unattended. There is arisk of injury.
When leaving the vehicle, always take the key with you and lock the vehicle. Never leave
children unattended in the vehicle. G
WARNING
If you drive off while the EASY-ENTRY/EXIT
feature is making adjustments, you could lose
control of the vehicle. There is arisk of an
accident.
Always wait until the adjustment process is
complete before driving off. The EASY-ENTRY/EXIT feature makes gettingin
and out of your vehicle easier.
You can activate and deactivate the EASY-
ENTRY/EXIT feature using the multimedia sys-
tem (see the separate operating instructions).
Position of the steering wheel when the EASY-ENTRY/EXIT featureisa ctive The steering wheel tilts upwards if you:
R remove the key from the ignition lock
R with KEYLESS-GO: open the driver's door;
KEYLESS-GO must be in position 1
R with the key: open the driver's door; the key
must be in position 0or 1in the ignition lock
(Y page 145)
R open the driver's door when the ignition is
switched off
i The steering wheel only tilts upwards if the
driving position is stored after the steering
column adjustment has been adjusted
(Y page 116).
The most recent driving position of the steering
wheel is stored if:
R the ignition is switched off
R the settingiss tored using the memory func-
tion (Y page 116)
i The steering wheel only moves upwards if it
has not already reached the upper steering
limiter. 112
Steering wheelSeats, steering wheela
nd mirrors

X
Turn the key to position 1or 2in the ignition
lock (Y page 145).
X Press button ;for the right-hand exterior
mirror or button =for the left-hand exterior
mirror.
The indicator lamp lights up in the button that has been pressed.
The indicator lamp goes out again after some
time. You can adjust the selected mirror using adjustmen tbutton :as long as the indicator
lamp is lit.
X Press adjustmen tbutton :up, down, or to
the left or right until you have adjusted the
exterior mirror to the correc tposition. You
should have agood overview of traffic condi-
tions.
The convex exterior mirrors provide alarger field
of vision.
After the engine has been started, the exterior
mirrors are automatically heated if the rear win-
dow heating is switched on and the outside tem- perature is low.
Folding the exterior mirrors in/out elec- trically X
Turn the key to position 1or 2in the ignition
lock (Y page 145).
X Briefly press button :.
Both exterior mirrors fold in or out.
i Make sure that the exterior mirrors are
alway sfolded out fully while driving. They
could otherwise vibrate.
i If you are driving faster than 47 km/h,
you
can no longer fol dintheexterio rmirrors. Resetting th
eexterior mirrors If th
ebattery has been disconnected or com-
pletely discharged, th eexter iorm irror smustbe
reset .The exterio rmirror swill otherwise not
fol dinw hen you select the Automatic Automaticmirror-
mirror-
foldin gfunction
foldin gfunction function in th emultimedia
system.
X Turn th ekeyto position 1or 2in th eignition
loc k(Ypage 145).
X Briefly press :.
Folding th eexterior mirror sin/out
automatically Whe
nthe Automatic
Automatic mirror-folding
mirror-folding func‐
func‐
tion
tion function is activated in th emultimedia sys-
te m( see th eseparat eoperating instructions):
R thee xter iorm irror sfoldina utomatically as
soo nasy ou loc kthe vehicl efromt heoutside
R thee xter iorm irror sfoldo ut automatically
again as soo nasyou unloc kthe vehicle
i If th
eexter iorm irror shaveb een folded in
manually, they do no tfoldo ut.
Exterior mirror pushe dout of position If an exterio
rmirror has been pushed out of
position (forwards or backwards), proceed as
follows:
X Vehicles withou
telectricall yfolding exte-
rior mirrors: manually mov ethe exterio rmir-
ror into th ecorrect position.
X Vehicles wit
helectricall yfolding exterior
mirrors: press and hold button :until you
hear aclick and then th emirror engaging in
position (Y page 114).
The mirror housin gisengage dagain and you
can adjust th eexter iorm irror sasu sual
(Y page 113). Automatic anti-dazzle mirrors
G
WARNING
Electrolyt emay escape if th eglassofana uto-
matic anti-dazzl emirror breaks .Electrol yteis
harmful and causes irritation .Itmustn ot
come into contact wit hyour skin ,eyes ,res-
piratory organs or clothin gorbeswallowed.
There is ariskofi njury. 114
Mir
rorsSeats ,steering wheel and mirrors

Exterio
rlighting General notes
For reason sofsafety, Mercedes-Ben zrecom-
mends that you driv ewith th elight sswitched on
even durin gthe daytime. In som ecountries,
operatio noftheheadlamps varies due to legal
requirement sand self-impose dobligations. Driving abroad
General notes If your journey takes you to countries where
vehicle
sare driven on th eopposit eside of the
road to th ecountr yinw hichthe vehicle is reg-
istered ,your headlamps must be switched to
symmetrical dipped beam as soon as possible
after crossing th eborder (only vehicle swith
Intelligen tLigh tSystem). This prevent soncom-
ing traffic from bein gdazzled. Symmetrical
light sdon otilluminate as large an area of the
edge of th ecarriageway.
Vehicles with halogen or static LED
headlamps It is no
tnecessar ytos witch your headlamps to
symmetrical dipped beam when driving in coun- tries wher evehicle sare driven on th eopposite
side of th eroad to th ecountr yinw hichthe vehi-
cle is registered .Lega lrequirement sare fulfilled
without switching th eheadlamps to symmetri-
cal dipped beam.
Vehicles with Intelligent Light System Before crossing th
eborder, set th eheadlamps
to symmetrical dipped beam and after returning
back to asymmetrical dipped beam via the
"Dipped-beam headlamps for driving on the
right/left "function in th eon-board computer
(Y page 247).
If th eheadlamps are converte dtosymmetrical
dipped beam, th e"motorway mode" and "exten-
ded range foglamps "function sare no tavailable. Settin
gthe exterio rlighting
Settin goptions Exterior lighting can be set usin
gthe:
R light switch
R combinatio nswitch (Y page 120)
R headlam prange adjustmen t(only vehicles
with halogen headlamps) (Y page 120)
R on-board computer (Y page 247)
Light switch Operation
1
W
Left-han dparking lamps
2 X
Right-hand parking lamps
3 T
Sidelamps ,licenc eplatea nd instru-
men tcluste rlighting
4 Ã
Automatic headlam pmode, controlled
by th elight sensor
5 L
Dipped-beam/main-beam headlamps
B R
Rear fog lamp
If you hear awarning tone when you leave the
vehicle ,the light smay still be switched on.
X Turn th elight switch to the Ãposition.
The exterio rlighting (excep tthe side lamps/
parking lamps )switches off automaticall yifyou:
R remove th ekeyfrom th eignition lock
R open th edriver' sdoor with th ekeyin posi-
tion 0in th eignition lock
Automatic headlamp mode
à is thepreferred light switch setting. 118
Exterior lightingLight
sand windscreen wipers

The light setting is automatically selected
accordin
gtothe brightness of the ambient light
(exception: poor visibility due to weather condi- tions such as fog, snow or spray):
R key in position 1in the ignition lock: the side
lamps are switched on or off automatically
depending on the brightness of the ambient
light.
R with the engine running: depending on the
ambient light conditions, the daytime driving
lights or the side lamps and dipped-beam
headlamps are switched on or off automati-
cally.
X To switch on the automatic headlamps:
turn the light switch to the
Ãposition. G
WARNING
When the light switch is set to Ã,the
dipped-beam headlamps may not be switched on automatically if there is fog, snow or othercauses of poor visibility due to the weather
conditions such as spray. There is arisk of an
accident.
In such situations, turn the light switch to
L.
The automatic headlamp feature is only an aid.
The driver is responsible for the vehicle lighting at all times.
The daytime driving lights improve the detecta-
bility of your vehicle during the day.
When the side lamps and dipped-beam head-
lamps are switched on, the green T(side
lamps) and L(dipped-beam headlamps)
indicator lamps in the instrument cluster light
up.
Dipped-beam headlamps When the ignition is switched on and the light
switch is in the Lposition, the side lamps
and dipped-beam headlamps are switched on
even if the light sensor does not sense dark
ambient light conditions. This is advantageous
when there is fog or rain.
X To switch on the dipped-beam headlamps:
turn the key in the ignition lock to position 2
or start the engine.
X Turn the light switch to the Lposition.
The green Lindicator lamp in the instru-
ment cluster lights up. Rear fog lamp
The rear foglamp improves the visibility of your
vehicle in heavy fog for the following traffic.
Please observe the country-specific laws on the
use of rear foglamps.
X To switch on the rear foglamp: turn the key
in the ignition lock to position 2or start the
engine.
X Turn the light switch to the LorÃ
position.
X Press the Rbutton.
The yellow Rindicator lamp in the instru-
ment cluster lights up.
X To switch off the rear foglamp: press the
R button.
The yellow Rindicator lamp in the instru-
ment cluster goes out.
Side lamps
! If the battery has been discharged to
alow
charge level, the side lamps or parking lamps
are automatically switched off to enable the
next engine start .Always leave your vehicle in
as afe position and adequately lit in accord-
ance with traffic regulations. Avoid using the
side lamps Tforaperiod of several hours.
If possible, switch on the right Xor left
W parking lamp.
X To switch on: turn the light switch to the
T position.
The green Tindicator lamp in the instru-
ment cluster lights up.
Parking lamps Switching on the parking lamps ensures that the
corresponding side of the vehicle is illuminated.
X To switch on the parking lamps: the key
should not be in the ignition lock or it should
be in position 0.
X Turn the light switch to the W(left-hand
side of the vehicle) or X(right-hand side of
the vehicle) position. Exterior lighting
119Lights and windscreen wipers Z

Adjusting th
eheadlamp range (halogen
headlamps) Headlamp range control
g
Driver's seat and front-passenger seat
occupied
1 Driver's seat ,front-pa ssenger seat and rear
seat soccupied
2 Driver's seat ,front-pa ssenger seat and rear
seat soccupied, boot laden
3 Driver's and front-passenger seat occupied
and maximum permissible rear axle load uti-
lised ,e.g.w hen towin gatrailer
The headlamp range control allows you to adjust
th ec oneofl ightfro mt heheadlamps to suit the
vehicl eload.
X Start th eengine.
X Turn th eheadlamp range control to th eposi-
tio nw hichc orres pondstot heload in your
vehicle. Combinatio
nswitch :
Main-beam headlamps
; Turn signal, right
= Headlamp flasher
? Turn signal, left X
To indicat ebriefly: press th ecom bination
switch briefly to th epressur epointint he
direction of arrow ;or?.
The corresponding tur nsignal flashes three
times.
X To indicate: press thecom bination switch
beyon dthe pressur epointint hedirection of
arrow ;or?.
X To switch on th
emain-beam headlamps:
tur nthe ligh tswitch to LorÃ.
X Press th ecom bination switch beyon dthe
pressur epointint hedirection of arrow :.
In the Ãposition, th emain-beam head-
lamps are only switched on when it is dark and th ee ngineisr unning.
The blue Kindicator lamp in th einstru-
men tcluste rlights up when th emain-beam
headlamps are switched on.
X To switch off th
emain-beam headlamps:
mov ethe combination switch bac ktoits nor-
mal position.
The blue Kindicator lamp in th einstru-
men tcluste rgoes out. Hazard warning lamps
X
To switch on th
ehazar dwarning lamps:
press button :.
All tur nsignals flash. If you no wswitch on a
tur nsignal usin gthe combination switch ,only
th et urns ignal lamp on th ecorres ponding
side of th evehicl ewill flash.
X To switch off th
ehazar dwarning lamps:
press button :.
The hazard warning lamps switch on automati-
call yif:
R an airba gisdeployed or
R thev ehicl edecelerate srapidly from aspeed
of abov e70km/hand comes to astandstill 120
Exterior lightingLight
sand windscreen wipers

The hazard warning lamps switch off automati-
cally if the vehicle reaches aspeed of above
10 km/ha gain afterafull brake application.
The hazard warning lamps continue to operate
even if the ignition is switched off. Intelligen
tLight System
General notes The Intelligent Light System is
asystem that
adjusts the headlamps automatically to suit the
prevailing driving and weather conditions. It
offers advanced functions for improved illumi-
nation of the road surface, e.g. depending on the vehicle speed or weather conditions. The sys-
tem includes the active light function, cornering light function, motorway mode, extended range
foglamps and off-road lights. The system is only
active when it is dark.
You can activate or deactivate the "Intelligent
Light System" function using the on-board com- puter (Y page 247).
Active light function The active light function is
asystem that moves
the headlamps according to the steerin gmove-
mentsoft he front wheels. In this way, relevant
areas remain illuminated while you are driving.
This allows you to recognise pedestrians,
cyclists and animals.
Active: when the lights are switched on.
Cornering light function The cornering light function improves the illu-
mination of the road over
awide angle in the
direction you are turning, enabling better visi-
bility in tight bends, for example. It can only be
activated when the dipped-beam headlamps are
switched on.
Active:
R if you are driving at speeds below 40 km/h
and switch on the turn signal or turn the steer- ing wheel
R if you are driving at speeds between 40 km/h
and 70 km/ha nd turnthe steering wheel
The cornering light function may remain lit for a
shor ttime, but is automatically switched off
after no mor ethant hree minutes. Motorwa
ymode Active:
if you are driving at aspee dabove
11 0k m/ hand do no tmakea ny large steering
movements for at least 1000 morify ou are
driving at aspee dabov e130 km/h.
Not active: if you are driving at speeds below
80 km/h followin gactivation.
Extended range foglamps The extended range foglamps reduc
ethe glare
experienced by th edriver and improve th eillu-
minatio noftheedge of th ecarriageway.
Active: if you are driving at speeds below
70 km/h and you switch on th erear foglamp.
Not active: if, followingactivation ,you are driv-
ing at speeds abov e100 km/h or if you switch
off th erear foglamp. Adaptive Highbeam Assist Plus
General notes Wit
hA daptiv eHighbeam Assist Plus, you can
automatically switch between dipped-beam,
partial main-beam and main-beam headlamps.
Partial main-beam illuminatio nisaformofi llu-
minatio nwhereby th emain beam is directed
past other road users. Other road user sare kept
out of th emain-beam. This prevent sglare .If
there is avehicle in front, for example, th emain-
beam headlamps illuminate th eareas to its right
and left ,and th evehicle in fron tisilluminate dby
th ed ipped-beam headlamps.
The system automatically adapt sthe dipped-
beam headlam prange dependin gonthedis-
tance to th eother vehicle .Oncet he system no
longer detect sany other vehicles, it switches on
th em ain-beam headlamps again.
If th emain-beam or partial main-beam head-
lamps are causing to omuchr eflectio nfromt raf-
fic signs, th elight sare automatically dimmed
and glare for th edriver caused by th ereflections
is thus avoided.
The system' soptical sensor is locate dbehind
th ew indscreen near th eoverhead control
panel. Exterior lighting
121Lightsand windscreen wipers Z

Important safety notes
G
WARNING
Adaptive Highbeam Assist Plus does no trec-
ognise road users:
R who hav enolights,e.g.p edestrians
R who hav epoor lighting ,e.g.c yclists
R whos elighting is blocked, e.g. by abarrier
In ver yrarec ases, Adaptive Highbeam Assist
Plus may no trecognise road user swho do
have lights ,ormay recognise them to olate. In
this, or in similar situations, th eautomatic
main-beam headlamps will no tbedeactivated
or will be activated despit ethe presence of
other road users. Ther eisariskofana cci-
dent.
Always carefully observ ethe traffic conditions
and switch off th emain-beam headlamps in
goo dtime.
Adaptive Highbeam Assist Plus canno ttak einto
accoun troad ,weather or traffic conditions.
Adaptive Highbeam Assist Plus is only an aid.
You are responsible for adjusting th evehicle's
lighting to th eprevailing light, visibilit yand traf-
fic conditions.
In particular, th edetection of obstacles can be
restricted if there is:
R poor visibility, e.g. due to fog ,heav yrain or
snow
R dirt on th esensor sorift hesensor sare
obscured
Switchin gAdaptive Highbeam Assist
Plu son/off X
To switch on: turnthe ligh tswitch to the
à position.
X Press th ecom bination switch beyon dthe
pressur epointint hedirection of arrow :.
The _ indicator lamp in th emultifunction
display lights up when it is dark and th elight
sensor switches on th edipped-beam head-
lamps.
At speeds abov eappro x. 25 km/h: the
headlamp range is automatically controlled
according to th edistanc etoother road users. At speeds abov
eappro x. 30 km/h:
R if no other road user sare detected, the
main-beam headlamps are automatically
switched on
R if other road user sare detected, th epartial
main-beam headlamps are automatically
switched on
The K indicator lamp in th einstrument
cluste ralso lights up.
At speeds below approx. 25 km/h or
when there is sufficient stree tlighting:
R thep artial main-beam headlamps are
switched off automatically
R them ain-beam headlamps are switched off
automatically
The K indicator lamp in th einstrument
cluste rgoes out .The _ indicator lamp in
th em ultifunction display remain slit.
X To switch off: movethe combination switch
bac ktoi tsnormal position or mov ethe light
switch to another position.
The _ indicator lamp in th emultifunction
display goes out. Headlamp
smiste dupont heinside
Certain climatic and physical condition smay
caus emoisture to for mintheheadlamp. This
moisture does no taffec tthe functionalit yofthe
headlamp. 122
Exterior lightingLight
sand windscreen wipers

Interior lighting
Overview of interior lighting
Fron toverhea dcontrol panel :
p Switches th eleft-han dfront reading
lamp on/off
; | Switches th eautomatic interio rlight-
ing control on/off
= c Switches th efront interio rlighting on/
off
? u Switches th erear interio rlighting on/
off
A p Switches th eright-hand fron treading
lamp on/off Interior lighting control
General notes In order to preven
tthe vehicle's battery from
discharging ,the interio rlighting function sare
automatically deactivated after som etime
except for when th ekeyis in position 2in the
ignition lock.
The colour ,brightness and display lighting for
th ea mbien tlighting are set usin gthe multime-
dia system (see th eseparat eoperating instruc-
tions).
Automati cinterior lighting control X
To switch on/off: press the|button.
When th eautomatic interio rlighting control is
switched on ,the butto nisflushw itht he over-
head control panel. The interior lighting automatically switches on if
you:
R unlock th evehicle
R open adoor
R remove th ekeyfrom th eignition lock
The interior lighting is activated for ashort time
when th ekeyis remove dfromt heignition lock.
This delaye dswitch-off can be adjusted via the
multimedia system (see th eseparat eoperating
instructions). Replacin
gbulbs Important safety notes
G
WARNING
Bulbs, lamp sand plug connectors can
become ver yhot during use. When replacing a
bulb, you could burn yourself on these com-
ponents .Ther eisar iskofi njury.
Allow these component stocooldown before
replacing th ebulb.
Do no tuse ab ulb that has been dropped or if its
glass tub ehas been scratched.
The bulb may explod eif:
R you touch it
R it is hot
R you dro pit
R you scratch it
Only operate bulbs in enclosed lamp sdesigned
for that purpose .Onlyf it spar ebulbs of th esame
typ eand th especifie dvoltage.
Mark sont heglass tub ereduce th eservic elife
of th ebulbs .Don ottouch th eglass tub ewith
your bare hands. If necessary, clean th eglass
tub ew hen cold wit halcohol or spirit and rub it
off wit halint-free cloth.
Protect bulbs from moisture during operation.
Do no tallow bulbs to come int ocontac twith
liquids.
Only replace th ebulbs listed (Y page 124).
Hav ethe bulbs that you canno treplace yourself
replace dataq ualified specialist workshop.
If you require assistanc ereplacing bulbs ,con-
sult aqualified specialist workshop.
If th enew bulb still does no tligh tup, consult a
qualified specialist workshop. Replacin
gbulbs
123Lightsand windscreen wipers Z