light MERCEDES-BENZ C-CLASS COUPE 2015 Service Manual
[x] Cancel search | Manufacturer: MERCEDES-BENZ, Model Year: 2015, Model line: C-CLASS COUPE, Model: MERCEDES-BENZ C-CLASS COUPE 2015Pages: 385, PDF Size: 13.12 MB
Page 84 of 385

Key functions
:
& Locks th evehicle
; F Opens/close sthe boot lid
= % Unlocks th evehicle
X To unlock centrally: press the%button.
If you do no topen th evehicl ewithin approx-
imately 40 seconds of unlocking:
R thev ehicl elocks again
R protection against theft is reactivated
X To lock centrally: press the&button.
The ke ycentra lly locks and unlocks th efollow-
ing components:
R thed oors
R theb oot lid
R thef uel filler flap
Whe nunlocking ,the turns ignals flas honce.
Whe nlocking ,the yflas hthree times.
You can also set an audibl esignal to confirm
that th evehicl ehas been locked. The audible
signal can be activated and deactivated via the
multimedia system (see th eDigital Owner's
Manual).
Only when all th ecom ponent shaveb een
locked, does th eoptical or acoustic locking con-
firmation sound.
Whe nthe locato rlighting is activated via the
multimedia system, it lights up when it is dark
after th evehicl eisu nlocke dwitht he key( see
th eD igital Owner' sManual).
X To open th
eboot lid automatically from
outsid ethe vehicle: press and hold the F
butto nuntil th eboot lid opens.
X To close th
eboot lid automatically from
outsid ethe vehicle: if thekeyis locate din th
ei mmediat evicinity of th evehicle, press
the F buttonont hekey.
Whe nthe boot lid closes you can then release
th eb utton. KEYLESS-GO
Genera lnotes Bear in min
dthatthe engin ecan be started by
any of th evehicl eoccupant sifthere is akeyin
th ev ehicl e(Ypage 148).
Lockin gand unlockin gcentrally You can start
,loc koru nlockthe vehicl eusing
KEYLESS-GO .Todothis, you need to carry the
ke yw ithy ou. You can combine th eKEYLESS-GO
function switht he function sofaconventional
key. Unloc kthe vehicl ebyu singK EYLESS-GO,
for instance ,and loc kitusingthe & button
on th ekey.
The driver's door and th edoor at whic hthe han-
dle is used mus tbothbec losed.The ke ymustbe
outside th evehicle. Whe nlocking or unlocking
wit hK EYLESS-GO ,the distanc ebetween th ekey
and th ecorre spondin gdoor handle mus tnotbe
greate rtha n1m.
Ab rief radi oconnectio nbetween th evehicle
and th ekeydetermine swhether avalid ke yisin,
or in th edirec tvicinity of, th evehicle. This
occurs, for example:
R when starting th eengine
R whils tdriving
R when usin gHANDS-F REEA CCESS
R when th eexternal door handles are touched
R during convenience closing Key
81Opening and closing Z
Page 85 of 385

X
To unloc kthe vehicle: touch the inne rsur-
fac eoft he door handle.
X To lock the vehicle: touch sensor surface :
or ;.
Make sure tha tyou do not touch the inner
surface of the door handle.
X Convenience closin gfeature: touch
recesse dsensor surface ;for an extended
period.
For further informatio nonthe convenience
closing feature (Y page 94).
Deactivating and activating If yo
udon ot intend to us eakey for an extended
perio doftime,you can deactivate the KEYLESS-
GO functio nofthe key .The key will then us every
little power, thereb yconserving battery power.
For the purposes of activation or deactivation,
the vehicl edoesn ot have to be nearby.
X To deactivate: press the&button on the
key twice in rapid succession.
The battery check lamp (Y page 83)ofthe
key flashe stwice briefl yand lights up once,
then KEYLESS-GO is deactivated.
X To activate: press any button on the key.
or
X Insert the key into the ignition lock.
KEYLESS-GO and al lofits associate dfeatures
are available again. KEYLESS-GO start function
General notes Bea
rinm ind tha tthe engine can be started by
any of the vehicl eoccupants if ther eisakey in
the vehicl e(Ypage 148). Changin
gthe settings of the locking
system
Yo uc an change the settings of the locking sys-
tem. Thi smeans tha tonlyt he driver's door and
the fue lfille rflapa re unlocke dwhent he vehicle
is unlocked. Thi sisusefulify oufrequently travel
alone.
X To chang ethe setting: simultaneousl ypress
the % and& buttons for approximately si
xs econds unti lthe battery check lamp
(Y page 83) flashe stwice.
If the setting of the locking system is changed
withi nthe signa lrang eoft he vehicle, pressing
the & or% button:
R locks or
R unlocks the vehicle
The key now functions as follows:
X To unlock: press the%button once.
X To unloc kcentrally: press the %button
twice.
X To lock: press the &button.
The KEYLESS-GO functions can be changed as
follows: X To unloc kthe driver' sdoor: touch the inner
surface of the door handl eonthe driver's
door.
X To unloc kcentrally: touch the inne rsurface
of the front-passenger door handle.
X To lock centrally: touch the outer sensor
surface on one of the door handles.
X To restore the factory settings: press and
hol dthe % and& buttons simultane-
ousl yfor approximatel ysixseconds unti lthe
battery check lamp (Y page 83)flashes
twice. Emergenc
ykey element
General notes If the vehicl
ecan no longer be unlocke dwitht he
key or KEYLESS-GO ,use the emergency key ele-
ment.
If yo uusethe emergency key element to unlock
and open the driver' sdoor, the anti-thef talarm
system will be triggered .Switch off the alarm
(Y page 78).
If yo uunlock the vehicl eusing the emergency
key element, the fue lfille rflapw illn ot be
unlocke dautomatically.
X To unloc kthe fue lfille rflap: insert the key
into the ignition lock. 82
KeyOpening and closing
Page 86 of 385

Removin
gthe emergenc ykey element X
Push release catch :in the direction of the
arrow and ,atthe same time ,remove emer-
gency key element ;from the key.
Further information:
R Unlocking the driver' sdoor(Ypage 88)
R Locking the vehicl e(Ypage 88)
Inserting the emergenc ykey element X
Push emergency key element ;completely
into the key unti litengages and release
catch :is back in its basic position. Battery of the key
Important safety notes G
WARNING
Batterie scontain toxic and corrosiv esubstan-
ces. If batteries are swallowed, it can resul tin
severe health problems .There is ariskoff atal
injury.
Kee pbatteries ou tofthe reach of children. If
ab attery is swallowed, see kmedica lattention
immediately. H
Environmental note Batterie
scontain pollutants.
It is illega ltodispose of them
with the househol drubbish.
The ym ustb ec ollected sep-
arately and disposed of in an environmentally responsible
recycling system.
Dispose of batteries in an
environmentally responsible
manner. Take discharged
batteries to
aquali fied spe-
cialist worksho portoacol-
lection point for used batter-
ies.
Mercedes-Benz recommend sthat yo uhavet he
batteries replaced at aquali fied specialist work-
shop.
Checking the battery X
Press the &or% button.
The battery is working properly if battery
check lamp :lights up briefly.
The battery is discharge difbattery check
lamp :doe snot light up briefly.
X Replace the battery (Y page 83).
If the key battery is checke dwithin the signal
reception rang eofthe vehicle, pressing the
& or% button:
R locks or
R unlocks the vehicle
i Yo
uc an obtain abattery from any qualified
specialist workshop.
Replacing the battery Yo
ur equire aCR20253Vc ellb attery.
X Take the emergency key element ou tofthe
key (Y page 83). Key
83Opening and closing Z
Page 89 of 385

Problem
Possible causes/consequences and
M
MSolutions The engine cannot be
started using the key. The on-board voltage is too low.
X Switch off non-essential consumers, e.g. seat heating or interior
lighting, and try to start the engine again.
If this does not work:
X Check the starter battery and charge it if necessary (Y page 343).
or X Jump-start the vehicle (Y page 345).
or X Consult aqualified specialist workshop. The engine cannot be
started using the Start/
Stop button. The key is in
the vehicle. The vehicle is locked.
X Unlock the vehicle and try to start the vehicle again. The key battery is discharged or nearly discharged.
X Check the key battery (Y page 83) and replace if necessary
(Y page 83).
If this does not work: X Start your vehicle with the key in the ignition lock. There is interference from
apowerful source of radio waves.
X Start your vehicle with the key in the ignition lock. You have lost
akey. X
Have the key deactivated at aqualified specialist workshop.
X Report the loss immediately to the vehicle insurers.
X If necessary, have the locks changed as well. You have lost the emer-
gency key element. X
Report the loss immediately to the vehicle insurers.
X If necessary, have the locks changed as well. Doors
Important safety notes
United Kingdom only: G
WARNING
When the double locks are activated, the
doors can no longer be opened from the
inside. People in the vehicle can no longer get out, e.g. in hazardous situations. There is a
risk of injury.
Therefore, do not leave any people unsuper-
vised in the vehicle, particularly children, eld-
erly people or people in need of special assis-
tance. Do not activate the double lock when
people are in the vehicle. If the vehicle has been locked from the outside,
the double lock function is activated as stand-
ard. It is then not possible to open the doors
from inside the vehicle. You can deactivate the
double lock function by deactivating the interior
motion sensor (see the separate multimedia
system operating instructions). The doors can
then be opened from the inside after the vehicle
has been locked from the outside. The anti-theft alarm system is triggered if the door is opened
from the inside. Switch off the alarm
(Y page 78).
All countries: 86
DoorsOpening and closing
Page 92 of 385

Right-hand-drive vehicle:
turn the emergency
key element in the opposite direction in both
cases.
If yo uusethe emergency key element to unlock
and ope nthe driver' sdoor, the anti-theft alarm
system will be triggered. Switch off the alarm
(Y page 78). Boot
Important safety notes
G
WARNING
Combustio nengines emi tpoisonous exhaust
gases such as carbon monoxide. Exhaust
gases can enter the vehicle interior if the boot
li diso penw hent he engine is running, espe-
ciall yift he vehicle is in motion. There is arisk
of poisoning.
Alway sswitch off the engine before opening
the boo tlid.N eve rdrive with the boo tlid
open. G
WARNING
If objects, luggage or loads are not secured or not secured sufficiently ,they could slip, tip
over or be flung around and thereby hit vehicle
occupants. There is ariskofi njury, especially
whe nbraking or abruptly changing directions.
Alway sstore objects so that they cannot be
flung around .Secure objects, luggage or
loads against slipping or tipping before the
journey.
! The boo
tlid swings upwards whe nopened.
Therefore, make sure that there is sufficient
clearance above the boo tlid.
The opening dimensions of the boo tlid can be
found in the "Vehicl edata" section
(Y page 377).
You can limit the opening angl eofthe boo tlid in
the multimedi asystem (se ethe Digital Owner's
Manual).
Do not leave the key in the boot. You could oth- erwise lock yoursel fout.
Stow luggage or loads preferabl yinthe boot.
Observe the loading guidelines (Y page 308). Obstacl
edetection with boot lid
reversin gfeature
Vehicles with boot li dremote closing fea-
ture:
The boo tlid is equipped with automatic obstacle
detection with reversing feature .Ifasolid object
blocks or restricts the boo tlid whe nautomati-
cally opening, this procedure is stopped .Ifa
solid object blocks or restricts the boo tlid when
automaticall yclosing, the boo tlid opens again
automatically. The automatic obstacl erecogni-
tion with reversing function is only an aid. It is
not asubstitute for your attentivenes swhen
opening and closing the boo tlid. G
WARNING
The reversing function doe snot react:
R to soft, light and thin objects, e.g. fingers
R over the last 8mmofthe closing path
The reversing feature cannot prevent some-
one being trapped in these situations in par-
ticular. There is ariskofi njury.
Whe nclosing make sure that no bod yparts
are in the closing area.
If someone is trapped:
R press the Fbutton on the key or
R pull or press the remote operating switch
on the driver' sdooror
R press the closing or locking button on the
boo tlid.
Vehicles with HANDS-FREE ACCESS:
It is also possible to stop the closing process by performing akicking movement under the rear
bumper. Opening and closin
gmanually
Opening X
Press the Fbutton on the key.
The boo tlid opens. Boot
89Opening and closing Z
Page 95 of 385

Operation
X
To open/close: kick into sensor detection
range :under the bumper with your foot.
Aw arning tonew ill sound while the boot lid is
opening or closing.
X If the boot lid does not open/close after
several attempts: wait at least ten seconds
then kick under the bumper oncea gain.
If you hold your foot under the bumper for too
long, the boot lid does not open or close. Repeat
the kicking movemen tmore quickly if this
occurs.
To stop the opening or closing procedure:
R move your foot in sensor detection range :
under the bumper, or
R press the closing button on the boot lid, or
R press the Fbutton on the key
If the boot lid closing procedure has been stop-
ped:
R move your foot under the bumper again and
the boot lid will open
If the boot lid opening procedure has been stop-
ped:
R move your foot under the bumper again and
the boot lid will close Opening and closing automatically
from the inside
Important safet ynotes G
WARNING
Combustion engine semit poisonous exhaust
gases such as carbon monoxide. Exhaust
gases can enter the vehicle interior if the boot
lid is open when the engine is running, espe- cially if the vehicle is in motion
.There is arisk
of poisoning.
Always switch off the engin ebefore opening
the boot lid. Never drive with the boot lid
open. G
WARNING
The reversing function does not react:
R to soft ,light and thin objects, e.g. fingers
R over the last 8mmofthe closing path
The reversing feature cannot preven tsome-
one being trapped in these situation sinpar-
ticular. There is arisk of injury.
When closing make sure that no body parts
are in the closing area.
If someon eistrapped:
R press the Fbutton on the key or
R pull or press the remot eoperatin gswitch
on the driver's door or
R press the closing or lockin gbutton on the
boot lid.
Vehicles with HANDS-FREE ACCESS:
It is also possible to stop the closing process by performing akicking movemen tunder the rear
bumper.
! The boot lid swings upwards when opened.
Therefore, make sure that there is sufficient
clearanc eabove the boot lid.
The opening dimension softhe boot lid can be
found in the "Vehicle data" section
(Y page 377).
Opening and closing 92
BootOpening and closing
Page 96 of 385

X
To open: pull remote operating switch :for
the boot li duntilthe boot li dopens.
X To close: press and hol dremote operating
switch :for the boot li duntilthe boot li dis
completel yclosed.
Whe nthe vehicl eisstationary ,you can close the
boot li dfrom the driver's seat. Whe nthe vehicle
is also unlocked, yo ucan also open the boot lid
from inside. Lockin
gthe boot separately
The separate boot locking functio niso nlya vail-
able in certain countries.
Yo uc an lock the boot separately. If yo uthen
unlock the vehicl ecentrally, the boot remains
locked and canno tbeo pened. Activating the functio
ntolockt he boot sepa-
rately:
X Close the boot lid.
X Ope nthe glove compartment.
X Push the switch to position :.
If the vehicl eisunlocke dcentrally, the boot
remains locked.
i Yo
uc an also lock the glove compartment
(Y page 309).
Deactivating the functio ntolockt he boot sep-
arately:
X Ope nthe glove compartment.
X Push the switch to position ;.
If the vehicl eisunlocke dcentrally, the boot
will also be unlocked. Side windows
Important safety notes
G
WARNING
While opening the side windows ,bod yp arts
could become trappe dbetween the side win-
do wa nd the door frame as the side window
moves. There is ariskofi njury.
Make sure tha tnobod ytouche sthe side win-
do wd uring the opening procedure. If some-
body become strapped, release the switch or
pull the switch to close the side windo wagain. G
WARNING
While closing the side windows ,bod yp arts in
the closing are acould become trapped. There
is ar iskofi njury.
Whe nclosing make sure tha tnoparts of the
body are in the closing area. If somebody
become strapped, release the switch or press
the switch to open the side windo wagain. Side windo
wreversin gfeature
The side windows are equipped with an auto-
matic reversing feature .Ifasolid object blocks
or restricts asidew indo wf rom travelling
upwards during the automatic closing process,
the side windo wopens agai nautomatically. Dur-
ing the manua lclosing process ,the side window
onl yopens agai nautomaticall yafterthe corre-
sponding switch is released .The automatic
reversing feature is onl yanaidand is no substi-
tute for your attentio nwhenc losing asidew in-
dow. G
WARNING
The reversing functio ndoesn ot react:
R to soft, light and thi nobjects, e.g .small fin-
gers
R whil eresetting
Thi sm eans tha tthe reversing feature cannot
prevent someone being trappe dinthesesit-
uations. There is ariskofi njury.
Whe nclosing, make sure tha tnoparts of the
body are in the closing area. If someone Side windows
93Opening and closing
Z
Page 98 of 385

Vehicles with KEYLESS-GO or KEYLESS-GO
start function: if the key is in the immediate
vicinity to the vehicle, the convenience closing
function is available.
Whe nyou lock the vehicle, yo ucan simultane-
ously:
R close the sid ewindows
R close the sliding sunroo forthe panorama
sliding sunroof
On vehicles with apanorama sliding sunroof,
yo uc an then close the rolle rsunblinds.
Note sont he automatic reversing feature for:
R the sid ewindow s(Ypage 93)
R the sliding sunroo forthe panorama sliding
sunroo f(Ypage 97)
Usin gthe key X
Press and hol dthe & button unti lthe side
window sand the sliding sunroo forthe pano-
ram asliding sunroo fare fully closed.
X Make sure that al lthe sid ewindow sand the
sliding sunroo forpanorama sliding sunroof
are closed.
X Vehicles with panorama sliding sunroof:
press and hol dthe & button once more
unti lthe rolle rsun blind softhe panorama slid-
ing sunroo fclose.
X To interrupt convenience closing: release
the & button.
Usin gKEYLESS -GO The driver'
sdoorand the doo ratwhich the han-
dl eisu sedm ustb oth be closed .The key mus tbe
outsid ethe vehicle. The ga pbetween the key
and the corresponding doo rhandles houl dnot
be greate rthan 1m. X
Touch recesse dsensor surface :on the
doo rhandleu ntilthe sid ewindow sand the
sliding sunroo forthe panorama sliding sun-
roo fare fully closed.
Make sure yo uonly touch recesse dsensor
surface :.
X Make sure tha tallthe sid ewindow sand the
sliding sunroo forpanorama sliding sunroof
are closed.
X Vehicles with panorama sliding sunroof:
touch recesse
dsensor surface :on the door
handl eagain untilthe rolle rsunblind soft he
panorama sliding sunroo fclose.
X To interrupt convenience closing: release
recesse dsensor surface :on the doo rhan-
dle. Resetting the side windows
If as idew indow can no longer be closed fully,
yo um ustreset it.
X Close al ldoors.
X Turn the key to position 1or 2in the ignition
lock.
X Pull the corresponding switch on the door
control panel unti lthe sid ewindow is com-
pletel yclosed (Y page 94).
X Hol dthe switch for an additiona lsecond.
If the sid ewindow opens agai nslightly:
X Immediately pull the corresponding switch on
the doo rcontrol panel unti lthe sid ewindow is
completely closed (Y page 94).
X Hol dthe switch for an additiona lsecond.
X If the corresponding sid ewindow remains
closed afte rthe button ha sbeenr eleased ,the
sid ew indow ha sbeenr eset correctly .Ifthis is
not the case, repea tthe step sabove again. Side windows
95Opening and closing Z
Page 99 of 385

Problems with the side windows
G
WARNING
If you close aside window again immediately after it has been blocked or reset, the side window
closes with increased or maximum force. The reversing function is then not active. Parts of the
body could be trapped in the closing area in the process. This poses an increased risk of injury or even fatal injury.
Make sure that no parts of the body are in the closing area. To stop the closing process, releasethe switch or push the switch again to reopen the side window. Problem
Possible causes/consequences and
M MSolutions As
ide window cannot be
closed because it is
blocked by objects, e.g.
leaves in the window
guide. X
Remove the objects.
X Close the side window. As
ide window cannot be
closed and you cannot
see the cause. If
as ide window is obstructed during closing and reopens again
slightly:
X Immediately after the window blocks, pull the correspondin gswitch
again until the side window has closed.
The side window is closed with increased force.
If as ide window is obstructed again during closing and reopens again
slightly:
X Immediately after the window blocks, pull the correspondin gswitch
again until the side window has closed.
The side window is closed without the automatic reversing feature. Sliding sunroof
Important safety notes
Your vehicle may be fitted with asliding sunroof
or ap anorama sliding sunroof. In this section,
the term "sliding sunroof" refers to both types of
sliding sunroof. G
WARNING
While opening and closing the sliding sunroof, body parts in close proximity could become
trapped. There is arisk of injury.
Make sure that no body parts are in close
proximity during the opening and closing pro- cedures. If somebody becomes trapped:
R release the switch immediately, or
R during automatic operation, press the
switch briefly in any direction
The opening or closing procedure will be stop-
ped. G
WARNING
If children operate the sliding sunroof they
could become trapped, particularly if they are left unsupervised. 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.
! Only open the panorama sliding sunroof if it
is free of snow and ice. Otherwise, malfunc-
tions may occur. 96
Sliding sunroofOpening and closing
Page 100 of 385

Do not allo
wanything to protrude fro mthe
sliding sunroof. Otherwise, the seals could be damaged.
Resonance noises can occu rinadditiontot he
usua lairflow noises when the sliding sunroo fis
open. The yarecaused by minor pressure fluc-
tuations in the vehicl einterior. Chang ethe posi-
tio noft he sliding sunroo foropenas idew indow
slightl ytoreduce or eliminate these noises.
Only fo rveh icle swithp anorama sliding sun-
roof: G
WARNING
At high speeds the raised sliding sunroo fauto-
maticall ylower ssligh tlyatt he rear. Thi scould
tra py ou or othe rpersons. There is ariskof
injury .Makes uret hatn obod yreache sinto
the swee pofthe sliding sunroo fwhils tthe
vehicl eisinm otion.
If somebod ybecome strapped ,immediately
pull back the sliding sunroo fswitch .The slid-
ing sunroo flifts durin gopening. Sliding sunroo
freversin gfeature
Your vehicl emaybe fitte dwithas lidingsunroof
or ap anorama sliding sunroof. In thi ssection,
the term "sliding sunroof" refers to both types of
sliding sunroof.
The sliding sunroo fisequippe dwithana uto-
matic reversing feature. If an object blocks or
restricts the sliding sunroo fduringt he closing
process, the sliding sunroo fopens agai nauto-
matically. The automatic reversing featur eis
onl yana idand is no substitute for your attention
when closing the sliding roof. G
WARNING
The reversing featur edoesn ot react:
R to soft, light and thi nobjects ,e.g.s mall fin-
gers
R ove rthe last 4mmoft he closing movement
R durin gresetting
R when closing the sliding sunroo fagain man-
uall yimmediatel yafter automatic reversing
Thi sm eans tha tthe reversing featur ecannot
prevent someone being trapped in these sit-
uations. There is ariskofi njury. When closing make sure tha
tnobodyp arts
ar eint he closing area.
If someone is trapped:
R release the switch immediatel yor
R press the switch in any direction durin gthe
automatic closing process
The closing proces sisstopped. Operatin
gthe sliding sunroof
Opening and closing :
To raise
; To open
= To close/lower
X Turn the key to position 1or 2in the ignition
lock.
X Press or pull the 3switch in the corre-
sponding direction.
If yo upress or pull the 3switch beyond the
point of resistance ,automatic operatio niss tar-
ted in the corresponding direction. Yo ucan stop
automatic operatio nbypressing or pulling
again.
The su nprotection cove rautomaticall yopens
along with the sliding sunroof. Yo ucan open or
close the su nprotection cove rmanuall ywhen
the sliding sunroo fisraisedorc losed.
Yo uc an continue to operate the sliding sunroof
after switching off the engine or removing the
key .Thisf un ctio nremains active for five
minute soruntilthe driver's or front-passenger
door is opened. Sliding sunroof
97Opening and closing Z