2015 MERCEDES-BENZ C-CLASS COUPE child lock

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

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

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

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

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

Correct driver's seat position
G
WARNING
You coul dlose control of th evehicle while
driving if you:
R adjust th edriver' sseat ,steering wheel or
mirrors
R fasten th eseat belt
Ther eisar iskofana ccident.
Adjust th edriver' sseat ,head restraint ,steer-
ing wheel and mirror sand fasten your seat
belt before starting th eengine. Observ
ethe followin gwhen adjusting steering
wheel :,seat belt ;and driver' sseat =:
R you are as far away from th edriver' sairbag as
possible
R you are sittin ginanormalupright position
R your thighs are slightly supported by th eseat
cushion
R your legs are no tentirely stretched and you
can depress th epedals properly
R theb ack of your head is supported at eye level
by th ecentr eoft hehead restraint
R you can hold th esteering wheel wit hyour
arm sslightly bent
R you can mov eyour legs freely
R you can see all th edisplays in th einstrument
cluste rclearly R
you should have agood overview of traffic
conditions
R thes eat belt is pulled snugly against th ebody
and must be routed across th ecentr eofy our
shoulder and across your hips in th epelvic
area
Further related subjects:
R Manual and electrical seat adjustment
(Y page 104)
R Electrical seat adjustmen t(Ypage 104)
R Adjusting th esteering wheel mechanically
(Y page 110) or electricall y(Ypage 111).
R Fastenin gthe seat belt correctly (Y page 43).
R Adjustin gthe rear-view mirror and exterior
mirror s(Ypage 113).
R You can store th eseat ,steering wheel ,exte-
rior mirror and head-up display settings with
th em emory function (Y page 116). Seats
Important safety notes
G
WARNING
If childre nadjust th eseats, they could
become trapped, especiall yiftheya re unat-
tended. Ther eisariskofi njury.
When leaving th evehicle ,always tak ethe key
wit hyou and loc kthe vehicle .Never leave
childre nunattende dinthevehicle.
The seat scan still be adjusted when there is no
ke yint heignition lock. G
WARNING
When adjusting aseat ,you or another vehicle
occupan tcoul db ecome trapped by th eguide
rail of th eseat ,for instance. Ther eisariskof
injury.
Mak esure that no on ehas any part of their
body within th esweep of th eseat when
adjusting it.
Observ ethe safety note son"Airbags"
(Y page 44) and "Children in th evehicle"
(Y page 55). 102
SeatsSeats, steerin
gwheel and mirrors

Problems with the seat heating or seat ventilation
Problem
Possible causes/consequences and
M
MSolutions Seat heating or seat ven-
tilation has been
switched off prematurely
or cannot 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.
Once the battery is sufficiently charged, the seat heating or seat
ventilation can be switched back on manually. Steering wheel
Important safety notes
G
WARNING
You could lose control of the vehicle while
driving if you:
R adjust the driver's seat, steering wheel or
mirrors
R fasten the seat belt
There is arisk of an accident.
Adjust the driver's seat, head restraint ,steer-
ing wheel and mirrors and fasten your seat
belt before startingt he engine.G
WARNING
Children could become trapped by the steer-
ing wheel if they adjust it. 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.
The electrically adjustable steering wheel can
still be adjusted when there is no key in the igni-
tion lock. Adjusting the steering wheel man-
ually
:
Release lever
; To adjust the steering wheel height
= To adjust the steering wheel position (fore-
and-aft adjustment)
X Push release lever :down completely.
The steering column is unlocked.
X Adjust the steering wheel to the desired posi-
tion.
X Push release lever :up completely.
The steering column is locked.
X Check if the steering column is locked. When
doing so, try to push the steering wheel up or
down or try to move it in the fore-and-aft
direction. 110
Steering wheelSeats, steering wheela
nd mirrors