light MERCEDES-BENZ C-CLASS SALOON 2012 User Guide

Self-test of automatic front passenger airbag
shutoff
When
the ignition is switched on, a self-test is
per form ed during which the two PASSENGER
AIR BAG ON and OFF indicator lamps light up
simul taneously.
The status of the front passenger airbag is dis‐
pla yed via thePA SSENGER AIR BAG indicator
lamps af terth e self-tes t:
R ON is lit: the front passenger airbag may
deploy during an accident.
The indicator lamp goes out af ter appro x‐
ima tely 60 seconds.
R ON and OF F are not lit: the front passenger
airbag may deploy during an accident.
R OFF is lit: the front passenger airbag is disa‐
bled. It will then not be deplo yed in theev ent
of an accident.
If th ePA SSENGER AIR BAG ON indicator lamp is
off, on lythePA SSENGER AIR BAG OFF indicator
lamp sho ws thest atus of the front passenger
airbag. The PASSENGER AIR BAG OFF indicator
lamp may be lit continuously or be off. If
th ePA SSENGER AIR BAG OFF indicator lamp
and the6 restra int sy stem warning lamp
light up simultaneousl y,the front passenger seat
may not be used. Also in this case, do not fit a
ch ild restra int sy stem tothe front passenger
seat. Ha vethe automatic front passenger airbag
shutoff checked and repaired immediately at a
qu alified specialist workshop.
St atus display
If th e front passenger seat is occupied, ensure,
bo th before and during the journe y,that thest a‐
tus of the front passenger airbag is cor rect for
th e cur rent situation.
Af terfitting a rear wa rd-facing child restra int
sy stem tothe front passenger seat:
PA SSENGER AIR BAG OFF must be lit continu‐
ousl y. &
WARNING Risk of injury or death when
using a rear wa rd-facing child restra int
sy stem while the front passenger airbag
is enabled
If yo u secure a child in a rear wa rd-facing
ch ild restra int sy stem on the front passenger
seat and thePA SSENGER AIR BAG OFF indi‐
cator lamp is off, the front passenger airbag
can deploy in theev ent of an accident.
The child could be stru ck bythe airbag.
Alw ays ensure that the front passenger air‐
bag is disabled. The PASSENGER AIR BAG
OFF indicator lamp must be lit.
NEVER use a rear wa rd-facing child restra int
sy stem on a seat with an ENABLED FRONT
AIRB AG. This can result in the DEAT H of or
SERIOUS INJU RYtotheCH ILD. When
fitting a child restra int sy stem tothe front
passenger seat, obser vetheve hicle-specific
information (/ page 68).
Depending on thech ild restra int sy stem and the
st ature of thech ild, thePA SSENGER AIR BAG
OFF indicator lamp may be off. In this case, do Occupant saf
ety49
Internal use only

Yo
u will need toper form certain settings your‐
self. #
Ifth e seat belt pre-tensioning is not reduced,
mo vethe seat backrest back slightl y.
The locking mechanism releases. Fu
nction of PRE-SAFE ®
PLUS (anticipatory
occupant pr otection plus) PRE-
SAFE®
PLUS can de tect cer tain impacts,
particular lyan imminent rear impact, and take
pre-em ptive measures toprotect theve hicle
occupants. These measures cannot necessarily
pr eve nt an imminent impact.
PRE-SAFE ®
PLUS can implement thefo llowing
measures independently of each other:
R Tightening the seat belts on the driver's seat
and front passenger seat.
R Activating there ar hazard warning lights at a
higher flashing frequenc y.
R Increasing brake pressure when theve hicle
is stationar y.This brake application is cancel‐
led automatically when theve hicle pulls
aw ay. If an accident did not occur,
the pre-em ptive
measures that we retake n are reve rsed.
Sy stem limits
The sy stem will not initiate any action in thefo l‐
lowing situations:
R when reve rsing
or
R when theve hicle is towing a trailer and there
is a risk of a rear impact
The sy stem will not initiate any braking applica‐
tion in thefo llowing situations:
R whilst driving
or
R when entering or exiting a parking space
while using Active Parking Assist Safely transporting
children in theve hicle Alw
ays obser vewhen children are tr avelling
in theve hicle %
Also strictly obser vethe saf ety no tesfo rthe
specific situation. In this wa yyo u can recog‐ nise po
tential risks and avoid dangers if chil‐
dren are tr avelling in theve hicle
(/ page 53).
Be diligent
Bear in mind that negligence when securing a
ch ild in thech ild restra int sy stem may ha veseri‐
ous consequences. Alw ays be diligent in secur‐
ing a child carefully before everyjou rney.
To impr oveprotection forch ildren younger than
12 years old or under 1.50 m in height,
Mercedes-Benz recommends you obse rvethe
fo llowing information:
R Alw ays secure thech ild in a child restra int
sy stem suitable forth is Mercedes-Benz vehi‐
cle.
R The child restra int sy stem must be appropri‐
ate tothe age, weight and size of thech ild.
R The vehicle seat must be suitable forfitting a
ch ild restra int sy stem (/ page57).
Ac cident statistics show that children secured
on there ar seats are general lysafer than chil‐
dren secured on the front seats. Forth is reason, 52
Occupant saf ety
Internal use only

#
Only af fix accesso ries which ha vebeen
specially appr oved forth is ch ild
re stra int sy stem bythech ild restra int
sy stem's manufacturer. Mercedes‑Benz
recommends Mercedes-Benz
care products for cleaning child restra int sys‐
te ms recommended byMercedes-Benz.
Only use child restra int sy stems which are in
proper working condition &
WARNING Risk of injury or death caused
by the use of damaged child restra int
sy stems
Child restra int sy stems or their retaining sys‐
te ms that ha vebeen subjec tedto stre ss in
an accident may not be able toper form their
intended pr otective function.
It may be the case that thech ild cannot be
proper lyrestra ined. #
Alw ays immediately replace child
re stra int sy stems that ha vebeen dam‐
aged or in volved in an accident. #
Have the securing sy stems forth ech ild
re stra int sy stems checked at a qualified
specialist workshop before ins talling a
ch ild restra int sy stem again. Av
oid direct sunlight &
WARNING Risk of burn s whenthech ild
seat is exposed todirect sunlight
If th ech ild restra int sy stem is exposed to
direct sunlight or heat, parts could heat up.
Children could suf fer burns from these parts,
particularly on the me tallic parts of thech ild
re stra int sy stem. #
Alw ays make sure that thech ild
re stra int sy stem is not exposed to
direct sunlight. #
Protect thech ild restra int sy stem, e.g.
with a blank et. #
Ifth ech ild restra int sy stem has been
ex posed todirect sunlight, allow it to
cool before secu ring a child in it. #
Never lea vechildren unat tended in the
ve hicle. Obser
vewhen stopping or parking &
WARNING Risk of accident and inju ry
due toleaving children unat tended in the
ve hicle
If ch ildren are left unat tended in theve hicle,
th ey could, in part icular:
R open doors, thereby endangering other
persons or road users.
R get out and be stru ck byoncoming traf‐
fi c.
R ope rate ve hicle equipment and become
trapped, forex ample.
In addition, thech ildren could also set the
ve hicle in motion by,fo rex ample:
R releasing the parking brake.
R changing the transmission position.
R starting theve hicle. Occupant saf
ety55
Internal use only

O
Alw
ays comply with the manufacturer's
ins tallation and operating instructions for
th ech ild restra int sy stem used.
O Make sure
that thech ild's feet do not touch
th e front seat. If necessar y,mo vethe front
seat slightly forw ards.
®When fitting an ISOFIX child restra int sys‐
te m, also obser vethefo llowing:
O When using a baby car seat in
weight
gr oup 0/0+ and a rear wa rd-facing child
re stra int sy stem in weight group I on a
re ar seat: adjustthe front seat so that the
seat does not touch thech ild restra int sys‐
te m.
O When using a
forw ard-facing child
re stra int sy stem in weight group 1:
re mo vethe head restra int from there spec‐
tive seat, if possible. In addition, the back‐
re st of thech ild restra int sy stem must lie as
fl at as possible against the backrest of the
ve hicle seat. Af
terth ech ild restra int sy stem has been
re mo ved, replace the head restra ints again
immediately and adjust them cor rectly.
O If
th e head restra int of thech ild seat cannot
be fully extended when it is ins talled in the
ve hicle, this will result in restrictions on the
maximum size setting forch ild restra int sys‐
te ms in weight category II or III.
Contact with thero of when the head
re stra int is fully extended and lo cked in
place will not result in any restrictions on
use.
O The
child restra int sy stem must not be put
under stra in between thero of and the seat
cushion and/or be fitted facing the wrong
direction. Where possible, adjust the seat
cushion inclination accordingly.
O The
child restra int sy stem must not be put
under stra in by the head restra int. Adjust
th e head restra ints as appropriate. °
When fitting an i‑Size child restra int sys‐
te m, also obser vethefo llowing:
O When using a
rear wa rd-facing child
re stra int sy stem: adjust the front seat so
th at it does not touch thech ild restra int sys‐
te m.
O When using a
forw ard-facing child
re stra int sy stem: remo vethe head
re stra int from there spective seat, if possi‐
ble. In addition, the backrest of thech ild
re stra int sy stem must lie as flat as possible
against the backrest of theve hicle seat.
Af terth ech ild restra int sy stem has been
re mo ved, replace the head restra ints again
immediately and adjust them cor rectly. 62
Occupant saf ety
Internal use only

O
When using a
weight category I forw ard-
fa cing child restra int sy stem: remo vethe
head restra int from there spective seat, if
possible.
Af terth ech ild restra int sy stem has been
re mo ved, replace the head restra ints again
immediately and adjust them cor rectly.
O The ba
ckrest of thefo rw ard-facing child
re stra int sy stem must, as far as possible, be
re sting on the seat backrest of there ar
seat.
O If
th e head restra int of thech ild seat cannot
be fully extended when it is ins talled in the
ve hicle, this will result in restrictions on the
maximum size setting forch ild restra int sys‐
te ms in weight category II or III.
Contact with thero of when the head
re stra int is fully extended and lo cked in
place will not result in any restrictions on
use.
O The
child restra int sy stem must not be put
under stra in between thero of and the seat
cushion and/or be fitted facing the wrong direction. Where possible, adjust
the seat
cushion inclination accordingly.
O The
child restra int sy stem must not be put
under stra in by the head restra int. Adjust
th e head restra ints as appropriate.
O Make sure
that thech ild's feet do not touch
th e front seat. If necessar y,mo vethe front
seat slightly forw ards. #
Install thech ild restra int sy stem.
The entire base of thech ild restra int sy stem
must alw aysre st on the sitting sur face of the
re ar seat. #
Alw ays make sure that the shoulder belt
st ra p is cor rectly routed from the seat belt
outlet of theve hicle tothe shoulder belt
guide on thech ild restra int sy stem.
The shoulder belt stra p must be routed for‐
wa rds and down wards from the seat belt out‐
let. Note
s onvehicles without automatic front
passen ger airbag shu toff St
icke r visible when the front passenger door
is open
Ve hicles without automatic front passenger air‐
bag shutoff ha vea special sticke r af fixe dto the
side of the cockpit on the front passenger side. Occupant saf
ety67
Internal use only

Key
Overview of
key functions &
WARNING Risk of accident and inju ry
due toleaving children unat tended in the
ve hicle
If ch ildren are left unat tended in theve hicle,
th ey could, in part icular:
R open doors, thereby endangering other
persons or road users.
R get out and be stru ck byoncoming traf‐
fi c.
R ope rate ve hicle equipment and become
trapped, forex ample.
In addition, thech ildren could also set the
ve hicle in motion by,fo rex ample:
R releasing the parking brake.
R changing the transmission position.
R starting theve hicle. #
Never lea vechildren unat tended in the
ve hicle. #
When leaving theve hicle, alw aysta ke
th eke y with you and lock theve hicle. #
Keep theve hicle key out of there ach of
ch ildren. *
NO
TEDama getotheke y caused by
magnetic fields #
Keep theke yaw ay from strong mag‐
netic fields. Ve
hicle key
1 Locks
2 Indicator lamp 3
Unloc ks
4 Opens/closes the boot lid
% If indicator lamp 2does not light up af ter
pressing theÜ orß button, the bat‐
te ry iswe ak or possibly dischar ged. Re place
th e battery as soon as possible.
Re place theke y bat tery ( / page 75).
The key loc ksand unlo cksth efo llowing compo‐
nents:
R doors
R fuel filler flap
R boot lid
If th eve hicle is not opened within appr oximately
40 seconds af ter unlocking, it loc ksagain. Anti-
th eft pr otection is primed again.
Do not keep theke yto get her with electronic
devices or me tal objects. This can af fect the
ke y's functionalit y. Opening and closing
73
Internal use only

Ac
tivating/deactivating the acoustic lo cking
ve rification signal Multimedia sy
stem:
4 Vehicle 5
î Vehicle settings
5 Acoustic lock #
Activate Oor deacti vate ª the function.
% Please no
te:
The selected setting forth e acoustic locking
ve rification signal must comply wi th there le‐
va nt national road and traf fic re gulations. In
some countri es, including German y,using
th e acoustic locking verification signal is for‐
bidden bytraf fic la ws(in accordance with
§16 Para. 1 and §30 Para. 1 of the German
national road traf fic re gulations). The driver
of theve hicle must comply with these regu‐
lations. In countri es wherethe use of this
function is forbidden, this function is not
activated in theve hicle and must not be acti‐
va ted. Changing
the unlocking settings Po
ssible unlocking functions of theke y:
R Central unlocking
R Unlocking the driver's door and fuel filler flap #
Toswitch between settings: pressthe
Ü andß buttons simultaneously for
appr oximately six seconds until the indicator
lamp flashes twice.
Options if the unlocking function forth e driver's
door and fuel filler flap has been selec ted:
R Tounlo cktheve hicle centrall y:press the
Ü button twice.
R Vehicles with KEYLESS-GO: ifyo uto uch
th e inner sur face of the door handle on the
driver's door, only the driver's door and fuel
fi ller flap are unlo cked. Deactivating
theke y functions If
yo u do not use theve hicle or a keyfo r an
ex tended pe riod of time, you can reduce the
energy consum ption of there spective key.Todo
so, deactivate theke y functions. #
Todeactivate: presstheß button on the
ke y twice in quick succession.
The key indicator lamp flashes twice brief ly
and lights up once. #
Toactivate: press any button on thekey.
% When theve hicle is star ted with theke y in
th estow age compartment of the cent recon‐
sole, theke y functions are automatical ly
activated (/ page156). Re
moving/inserting the eme rgency key Re
moving the eme rgency key 74
Opening and closing
Internal use only

#
Press release knob 1.
Emer gency key2 is pushed out slightly. #
Pull out emer gency key2 until it en gage s in
th e intermediate position. #
Press release knob 1again and fully
re mo veemer gency key2.
Inserting the emer gency key #
Press release knob 1. #
Insert emer gency key2 tothe intermediate
position or fully until it engages.
% You can use the intermediate position of
emer gency key2 toattach theke yto akey
ri ng. Re
placing the key battery &
DANG ER Serious damage tohealth
caused byswallowing batteries
Batteries contain toxic and cor rosive sub‐
st ances. Swallowing bat teries may cause
serious damage tohealth.
There is a risk of fata l injur y. #
Keep batteries out of there ach of chil‐
dren. #
If batteries are swallo wed, seek medical
attention immediately. +
ENVIRONMEN
TALNO TEEnvironmental
dama gedue toimproper disposal of bat‐
te ries Batteries conta
in pollutants. It is
illegal todispose of them with the household
ru bbish. #
Dispose of batteries of in an
environmen tally responsible manner.
Ta ke dischar ged batteries toaqu alified
specialist workshop or toa collection
point for used batteries. Re
quirements:
R Yourequ ire a CR 2032 3 V cell batter y.
Mercedes-Benz recommends that you ha vethe
battery replaced at a qualified specialist work‐
shop. #
Remo vethe emer gency key ( / page 74). #
Press release knob 2down fully and slide
co ver1 inthe direction of the ar row. #
Fold out co ver1 inthe direction of the
ar row and remo ve. #
Remo vebattery compartment 3and take
out the dischar ged batter y. Opening and closing
75
Internal use only

#
With th e boot lid comple tely open, press and
hold thep button on thekey. Thekey
must be in the vicinity of theve hicle.
Ve hicles with HANDS-FREE ACCESS #
With th e boot lid comple tely opened, make a
kicking mo vement with your foot below the
bumper (/ page 83).
Boot lid automatic reve rsing function
The boot lid is fitted wi thautomatic bloc kage
de tection with are ve rsing function. If an obs ta‐
cle stops the boot lid during the automatic clos‐
ing procedure, it will automatically open again.
The automatic reve rsing function is only an aid
and is not a substitute foryo ur attentiveness. #
During the closing process, make sure that
no body parts are in the closing area. &
WARNING Risk of becoming trapped
despi tereve rsing function
The reve rsing function will not react:
R tosoft, light and thin objects, e.g. fingers
R towa rdsth e end of the closing procedure In
these situations in particular, there ve rsing
function cannot pr event someone being trap‐
ped. #
Ensu rethat no body parts are in the
closing area. #
If someone is trapped, use one of the
fo llowing options:
R Press thep button on thekey.
R Press there mo teoperating switch
on the driver's door.
R Press the closing or locking button
on the boot lid.
R Pull the boot lid handle. HANDS-FREE
ACCESS function Wi
th HANDS-FREE ACCESS you can open, close
or inter rupt boot lid mo vement byper form ing a
kicking mo vement under there ar bumper.
The kicking mo vement triggers the opening or
closing process alternately.
Obser vethe no tes when opening (/ page 80)
and closing (/ page81)th e boot lid. Opening and closing
83
Internal use only

#
Tointer rupt automatic operation: press or
pull theW button again.
When theve hicle is switched off, you can con‐
tinue tooperate the side windo ws.
This function is available for around four minutes
or until a front door is opened.
Au tomatic reve rsing function of the side win‐
do ws
If an obs tacle impedes a side window du ring the
closing process, the side window will open again
automaticall y.The automatic reve rsing function
is only an aid and is not a substitute foryo ur
attentiveness. #
During the closing process, make sure that
no body parts are in the closing area. &
WARNING Risk of becoming trapped
despi tethere being reve rsing pr otection
on the side window
The reve rsing function does not react:
R tosoft, light and thin objects, e.g. fingers.
R during resetting. The
reve rsing function cannot pr event some‐
one from becoming trapped in these situa‐
tions. #
During the closing process, make sure
th at no body parts are in the closing
area. #
If someone becomes trapped, press the
W button toopen the side window
again. Au
tomatic function of the side windo ws In
thefo llowing cases, the side windo wswill be
closed automatically when theve hicle is
switched off:
R if it starts torain
Ra in is de tected byara in sensor on the
windscreen.
R inextreme temp eratures
R afte r a cer tain time (depending on the on-
board electrical sy stem voltage)
R ifth ere is a malfunction in the po wer supply The side windo
wswill be closed as far as the
ve ntilation position.
Ve hicles with a sliding sunroof: the side win‐
do ws will be closed comple tely ifth e sliding sun‐
ro of is open.
If th e side windo wsare obstructed during auto‐
matic closing, the side window concerned will
open again slightl y.The automatic function for
th e sliding sunroof and the side windo wswill
th en be deactivated. Con
venience opening (ventilating theve hicle
before starting a journey) &
WARNING Risk of entrapment when
opening a side window
When opening a side windo w,parts of the
body could be dr awn in or become trapped
between the side window and window frame. #
When opening, make sure that nobody
is touching the side windo w. #
Release the button immediately if
somebody becomes trapped. Opening and closing
87
Internal use only