keyless MERCEDES-BENZ C-CLASS COUPE 2015 Owners Manual

J
Jack Storage location ............................3 36
Using ............................................. 362
Jump starting (engine) ......................345 K
Key Changing the battery ....................... 83
Checking the battery ....................... 83
Convenience closing feature ............ 95
Convenience opening feature .......... 94
Display message ............................ 284
Door central locking/unlocking ....... 81
Emergency key element ................... 82
Important safety notes .................... 80
KEYLESS-GO start function .............. 82
Loss ................................................. 85
Modifying the programming ............. 82
Overview .......................................... 80
Positions (ignition lock) ................. 145
Problem (malfunction) ..................... 85
Starting the engine ........................ 147
Keyp ositions
Key ................................................ 145
Start/Stop button .......................... 145
KEYLESS-GO
Convenience closing ........................ 95
Deactivation ..................................... 81
Locking ............................................ 81
Removing the Start/Stop button ... 146
Start function ................................... 82
Unlocking ......................................... 81
Kickdown
Driving tips ................................... .161
Manual gearshifting ....................... 165
Kneebag ............................................... 46 L
Lamps see Warning and indicator lamps
Lane Keepin gAssist
Activating/deactivating ................. 220
Activating/deactivating (on-
board computer) ............................ 246
Display message ............................ 271 Function/informatio
n.................... 219
see Active Lane Keeping Assist
Lan epackage ..................................... 217
Lap time (RACETIMER) ...................... 251
Lashin geyelets ................................. 312
Licenc eplate lamp (display mes-
sage) ................................................... 265
Light senso r(display message) ....... 265
Lighting
see Lights
Lights
Activating/deactivating the Intel-
ligent Light System ........................ 247
Active light function ....................... 121
Adaptive Highbeam Assist PLU S.... 121
Automati cheadlamp mod e............ 118
Cornering light function ................. 121
Dipped-bea mheadlamp s............... 119
Driving abroa d............................... 118
Foglamp s(extende drange) ........... 121
Genera lnotes ................................ 118
Hazard warning lamps ................... 120
Headlamp flashe r........................... 120
Headlamp rang e............................ 120
Intelligent Light System (func-
tion) ............................................... 121
Light switch ................................... 118
Main-bea mheadlamp s................... 120
Misted up headlamp s.................... 122
Motorwa ymode............................. 121
Parking lamps ................................ 119
Rear foglamp ................................. 119
Setting exterio rlighting ................. 118
Sid elam ps ..................................... 119
Turn signal s................................... 120
see Interior lighting
LI Mi ndicator lamp
Cruise control ................................ 181
DISTRONIC PLU S........................... 185
Variabl eSPEEDTRONIC ................. 183
Limiting the speed
see SPEEDTRONIC
LINGUATRONIC
see Separate operating instructions
Loadin gguidelines ............................ 308
Locking
see Central locking Index
13

Panic alarm
X
To prime: press the!button :for
approximately one second.
Av isual and audible alarm is triggered if the
alarm system is primed.
X To deactivate: press the!button :
again.
or
X Insert the key into the ignition lock.
or, on vehicles with KEYLESS-GO start function
or KEYLESS ‑GO:
X Press the Start/Stop button.
The key must be in the vehicle.
The panic alarm function is only available in cer-
tain countries. Occupant safety
Introduction to the restraint system
The restraint system can reduce the risk of vehi-
cle occupants coming into contact with parts of
the vehicle's interior in the event of an accident. Furthermore, the restraint system can also
reduce the forces to which vehicle occupants
are subjected during an accident.
The restraint system includes:
R Seat belt system
R Airbags
R Child restraint system
R Child seat securing system The various components of the restraint system
work complementary to one another. They can
only perform their intended protective function
if all vehicle occupants:
R have correctly fastened their seat belt
(Y page 42)
R have correctly adjusted their seat and head
restraint (Y page 102).
As the driver, you must also ensure that the
steering wheel is correctly adjusted. Observe
the information relating to the correct driver's
seat position (Y page 102).
Additionally, you must ensure that an airbag can
deploy freely (Y page 44).
The airbag is supplementary to acorrectly fas-
tened seat belt. As an additional safety device,
the airbag increases the level of protection for
vehicle occupants in the event of an accident. If
the protection provided by the seat belt is suf-
ficient, the airbags do not deploy. Furthermore, in the event of an accident, only airbags which
provide greater protection in the given accident
situation deploy. However, seat belts and air-
bags generally do not protect against objects
penetrating the vehicle from the outside.
Information on how the restraint system oper-
ates can be found in "Deployment of the seat
belt tensioner and airbags" (Y page 52).
See "Children in the vehicle" for information on
infantsa nd children traveling with you in the
vehicle restraint systems for infantsa nd chil-
dren(Y page 55). Important safety notes
G
WARNING
If the restraint system is modified, it may no
longer work as intended. The restraint system
may then not perform its intended protective function by failing in an accident or triggering
unexpectedly, for example. There is an
increased risk of injury, possibly even fatal.
Never modify parts of the restraint system. Do not attempt to modify the wiring as well as
electronic components or their software.
If modification of an airbag system is necessary to accommodate aperson with disabilities, con-
tact aqualified specialist workshop for details. Occupant safety
39Safety Z

X
To activate with the key: remove the key
from the ignition lock.
X To activate with KEYLESS-GO start-func-
tio norK EYLESS -GO:switch the ignition off
and open the driver's door.
X To deactivate: switch on the ignition.
Whe nleaving the vehicle, always take the key
with yo uand lock the vehicle. Anyone can start
the engine if avalid key ha sbeenleftinsid ethe
vehicle.
i The immobiliser is always deactivate
dwhen
yo us tart the engine. ATA (Anti-Theft Alarm system)
X
To prime: lock the vehicl ewitht he key or
KEYLESS-GO.
Indicato rlamp :flashes. The alarm system
is primed afte rapproximatel yten seconds.
X To switc hoff:unlock the vehicl ewitht he key
or KEYLESS-GO.
or X Insert the key into the ignition lock.
Av isua land audibl ealarm is triggered if the
alarm system is primed and yo uopen:
R ad oor
R the vehicl ewitht he emergency key element
R the boot lid
R the bonnet
X To deactivate the alarm with the key: press
the % or& button on the key.
The alarm stops.
or X
Vehicles with KEYLESS-GO start-function
or KEYLESS-GO: remove the Start/Stop but-
ton from the ignition lock (Y page 145).
X Insert the key into the ignition lock.
The alarm stops.
X To sto
pthe alarm using KEYLESS-GO:
grasp the outsid edoorh andle. The key must
be outsid ethe vehicle.
The alarm stops.
or X Press the Start/Stop button on the dash-
board .The key must be insid ethe vehicle.
The alarm stops.
The alarm does not switch off, eve nifyouclose
the open door tha thas triggered it, for example.
i If the alarm stays on for more than
30 seconds ,the Mercedes‑Be nz emergency
cal lsys tem automaticall ysend sam essage to
the Customer Assistance Centre. Thi sisdone
by means of atext message or adatac on-
nection.
The emergency cal lsystem send samessage
or establishes adatac onnectio nprovided
that:
R youh aves ubscribed to the Mercedes ‑Benz
emergency cal lsystem
R the Mercedes‑Be nz emergency cal lsys tem
ha sb eena ctivate dproperly
R the necessary mobil ephone network is
available Tow-away protection
Function An audibl
eand visua lalarm is triggered if your
vehicle's angle of inclinatio nisa ltere dw hile
tow-away protection is primed .Thisc an occu rif
the vehicl eisjacke dupono ne side,for exam-
ple.
Priming X
Make sure that:
R the doors are closed
R the boot li disclosed
Onl ythen is tow-away protection activated.
X Lock the vehicl ewitht he key or KEYLESS-GO.
Tow-away protection is activate dafter
approximatel y60s econds. 78
Protectio
nagains ttheftSafety

Key
Important safety notes
United Kingdom only: G
WARNING
Whe nthe doubl elocks are activated, the
door scan no longer be opened from the
inside. People in th evehicl ecan no longer get
out ,e.g.inh azardous situations. There is a
ris kofi njury.
Therefore ,donotleav eany people unsuper-
vised in th evehicle, particularly children ,eld-
erl yp eople or people in need of special assis-
tance .Don otactivat ethe doubl eloc kw hen
people are in th evehicle.
If th evehicl ehas been locke dfromt heoutside,
th ed oubl eloc kf unction is activated as stand-
ard. It is then no tpossibl etoopen th edoors
from inside th evehicle. You can deactivat ethe
doubl eloc kfunction by deactivating th einterior
motion sensor (see th eseparat emultimedia
system operating instructions). The door scan
then be opened from th einside after th evehicle
has been locke dfromt heoutside .The anti-theft
alarm system is triggered if th edoor is opened
from th einside. Switc hoff th ealarm
(Y page 78).
All countries: G
WARNING
If children are lef tunsupervised in th evehicle,
they could:
R open doors, thereby endangering other per-
son sorr oad users
R get out and be struc kbyoncomingt raffic
R operate vehicl eequipmen tand become
trapped ,for example
In addition ,the children could also set the
vehicl einm otion,for example, if they:
R release th eparking brake
R shift th eautomatic transmission out of park
position Porshift manual transmission into
neutral
R start th eengine
There is ariskofana ccidentand injury. Whe
nleaving th evehicle, always tak ethe key
wit hyou and loc kthe vehicle. Never leave
children and animals unattended in th evehi-
cle .Keept he keys out of th ereac hofc hildren. G
WARNING
If you attach heav yorlargeobjects to th ekey,
th ek eycould be unintentionally turne dinthe
ignition lock. This could caus ethe engin eto
be switched off .There is ariskofana ccident.
Do no tattach any heav yorlargeobjects to the
key. Remove any bulk ykeyrings before insert-
ing th ekeyintot he ignition lock.
! Kee
pthe keya way from stron gmagnetic
fields. Otherwise ,the remot econtro lfunction
could be affected.
Stron gmagnetic fields can occur in th evicin-
it yofp owerful electrical installations.
Do no tkeept he key:
R wit he lectronic devices, e.g. amobile phone
or another key
R wit hm etallic objects ,e.g.c oins or metal film
R inside metallic objects ,e.g.a metal case
This can affec tthe key's functionality.
Vehicles wit hKEYLESS-G Ostart function: do
no tk eept he keyo nthe parcel shelf or in the
boot .Otherwise ,the keym ay no tbed etected,
e.g. when starting th eengineu singthe Start/
Stop button.
Ac heck whichperiodically establishes aradio
connection between th evehicl eand th ekey
determine swhether avalid ke yisint hevehicle.
This occurs, for example:
R when starting th eengine
R whils tdriving
R when th eexternal door handles are touched
R during convenience closing 80
KeyOpening and closing

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

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

Problems with the key
Problem
Possible causes/consequences and
M
MSolutions You can no longer lock or
unlock the vehicle using
the key. 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 Unlock (Y page 88) or lock (Y page 88) the vehicle using the
emergency key element. There is interference from
apowerful source of radio waves.
X Unlock (Y page 88) or lock (Y page 88) the vehicle using the
emergency key element. The key is faulty.
X Unlock (Y page 88) or lock (Y page 88) the vehicle using the
emergency key element.
X Have the key checked at aqualified specialist workshop. You can no longer lock or
unlock the vehicle using
KEYLESS-GO. KEYLESS-GO was deactivated.
X Reactivate KEYLESS-GO (Y page 81). 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 Unlock (Y page 88) or lock (Y page 88) the vehicle using the
emergency key element. There is interference from
apowerful source of radio waves.
X Unlock (Y page 88) or lock (Y page 88) the vehicle using the
emergency key element. There is
afault with KEYLESS-GO.
X Lock/unlock the vehicle using the remote control function of the
key.
X Have the vehicle and key checked at aqualified specialist work-
shop.
If the vehicle can also not be locked/unlocked using the remote con-
trol function:
X Unlock (Y page 88) or lock (Y page 88) the vehicle using the
emergency key element.
X Have the vehicle and key checked at aqualified specialist work-
shop. Key
85Opening and closing Z

G
WARNING
If children are left unsupervised in the vehicle, they could:
R open doors, thereby endangering other per-
sons or road users
R get out and be struck by oncoming traffic
R operate vehicl eequipment and become
trapped, for example
In addition, the children coul dalsos et the
vehicl einm otion, for example, if they:
R release the parking brake
R shift the automatic transmission out of park
position Porshift manua ltransmission into
neutral
R start the engine
There is arisk of an accident and injury.
When leaving the vehicle, alwayst ake the key
with you and lock the vehicle. Never leave
children and animals unattended in the vehi-
cle. Keep the keys out of the reach of children. Unlocking and opening the doors
from the inside
Unite dKingdom only: if the vehiclehas been
locked with the key or with KEYLESS-GO, the
double lock function is activated as standard. It is then not possible to open the doors from
insid ethe vehicle. You can deactivate the dou-
ble lock function by deactivating the interior
motion sensor (see the Digita lOwner's Manual).
The doors can then be opened from the inside
after the vehicl ehas been locked from the out-
side .The anti-theft alarm system is triggere dif
the door is opened from the inside. Switch off
the alarm (Y page78).
For all countries except the Unite dKingdom:
You can open adoor from insid ethe vehicle
even if it has been locked. If the vehicl ehas pre-
viously been locked with the key or with KEY-
LESS-GO, opening adoor from the insid ewill
trigger the anti-theft alarm system. Switch off
the alarm (Y page78). X
Pulld oor handle ;.
If the door is locked, locking knob :pops up.
The door is unlocked and opens. Centrally locking and unlockin
gthe
vehicle from the inside
You can centrally lock and unlock the vehicle
from the inside. The switches are on the driver's door. X
To unlock: press button :.
X To lock: press button ;.
When the front-passenge rdoor is closed ,the
vehicl eislocked.
This does not lock or unlock the fuel filler flap.
You cannot unlock the vehicl ecentrally from the
insid eifthe vehicl ehas been locked with the key
or KEYLESS-GO.
For all countries except the Unite dKingdom:
The doors can be opened from the inside.
If the vehicl ehas previousl ybeen locked with
the key or with KEYLESS-GO, opening adoor
from the insid ewillt rigger the anti-theft alarm
system. Switch off the alarm (Y page78).
Unite dKingdom only: if the vehiclehas been
locked with the key or with KEYLESS-GO, the Doors
87Opening and closing Z

Closing
X
Pull th eboot lid down usin grecess :and
push it closed.
X Loc kthe vehicle if necessary wit hthe &
butto nont hekeyorw ithK EYLESS-GO
(Y page 81). Opening/closing automatically from
th eo utside
Important safety notes G
WARNING
Part soft hebody coul dbecome trapped dur-
ing automatic closin goftheboot lid. More-
over, people, e.g .children, may be standing in
th ec losin garea or may ente rthe closin garea
durin gthe closin gprocess. Ther eisariskof
injury.
Mak esure that nobody is in th evicinity of the
closin garea durin gthe closin gprocess.
Use on eofthefollowin goption stos topt he
closin gprocess:
R pres sthe F buttonont hekey.
R pull or pres sthe remot eoperatin gswitch
on th edriver' sdoor.
R pres sthe closin gorlockin gbutto nont he
boot lid. G
WARNING
Combustion engines emit poisonous exhaust
gases suc hascarbon monoxide. Exhaust
gases can ente rthe vehicle interio riftheboot
lid is open when th eengineisr unning, espe- ciall
yift hevehicle is in motion .Ther eisar isk
of poisoning.
Always switch off th eengineb efore opening
th eb oot lid. Never driv ewitht he boot lid
open.
Vehicles with HANDS-FREE ACCESS:
It is also possible to stop th eclosin gproces sby
performing akickin gmovement unde rthe rear
bumper.
! The boot lid swings upward
swhen opened.
Therefore, mak esure that there is sufficient
clearance abov ethe boot lid.
The opening dimension softheboot lid can be
foun dint he"Vehicle data" section
(Y page 377).
Opening automatically You can open th
eboot lid automaticall yusing
th ek ey.
X Press and hold the Fbuttonont hekey
until th eboot lid opens.
Closing automatically :
Closin gbutton
; Lockin gbutton
X Press closin gbutton :in th eboot lid.
Vehicles with boot lid remote closing fea-
ture and KEYLESS-GO: when thedriver' sdoor
is closed you can simultaneousl yclose th eboot
lid and loc kthe vehicle .The KEYLESS-GO key
must be in th erear detection range of th evehi-
cle.
X Press lockin gbutton ;in th eboot lid.
If KEYLESS-GO detect sakeyoutside th evehi-
cle ,the boot lid closes .The vehicle is locked. 90
BootOpening and closing

If KEYLESS-GO detects
akey in the boot, the
boot lid opens again after it is closed.
If KEYLESS-GO detects asecond key outsid ethe
vehicle ,the boot lid remains closed.
If KEYLESS-GO detects akey in the boot before
the closing procedure starts, the boot lid
remains open. HANDS-FREE ACCESS
Important safety notes G
WARNING
The vehicle exhaust system can become very
hot. If you use HANDS-FREE ACCESS, you
could burn yourself by touching the exhaust
system. There is arisk of injury. Always
ensure that you only make aleg movement
within the detection range of sensors.
! If the key is within the rear detection range
of KEYLESS-GO, the following situations, for
example ,could leadtot 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.
General notes With KEYLESS-GO and HANDS-FREE ACCESS,
you can open or close the boot lid or stop the
procedure withou
tusing yourh ands. This is use-
ful if you have yourh ands full.Todothis, make
ak icking movement under the bumperw ith your
foot.
Observe the following points:
R Carry yourK EYLESS-GO key abouty ourp er-
son. The KEYLESS-GO key must be in the rear detection range of the vehicle.
R When making the kicking movement, make
sure that you are standing firmly on the
ground and that there is sufficient clearance
to the rear of the vehicle .You could otherwise
lose yourb alance, e.g. on ice. R
Alwayse nsure that you only make akicking
movement within the detection range of sen- sors :.
R Stand at least 30 cm awayf rom the rear area
whiled oing so.
R Do not come into contact with the bumper
whilem aking the kicking movement. Other-
wise,t he sensors may not function correctly.
R HANDS-FREE ACCESS does not function
when the engine is started.
R Dirt causedbyr oad salt around sensors :
may restrict functionality.
Using HANDS-FREE ACCESS with apros-
thetic leg may restrict functionality.
R IfaK EYLESS-GO key is within the rear detec-
tion range of KEYLESS-GO, HANDS-FREE
ACCESS could be triggered. The boot lid could
thus be opened or closed unintentionally ,for
example ,ifyou:
- fold the ballc oupling in or out
- coupleoru ncoupleatrailer
- fit or remove arear-mounted bicycl erack
- load/unload bicycles on/from arear-
mounted bicycl erack
- sit on the edge of the boot
- set down or lift up an object behind the
vehicle
- polish the rear of the vehicle
Do not carry the KEYLESS-GO key abouty our
person in such situations. This willp revent the
unintentional opening/closing of the boot. Boot
91Opening and closing Z