ECU MERCEDES-BENZ C-CLASS SALOON 2012 Owner's Manual

Make sure
you obse rveth efo llowing informa‐
tion:
R Neverfit a rear wa rd-facing child restra int
sy stem tothe front passenger seat
R Alw aysfit a rear wa rd-facing child restra int
sy stem toa suitable rear seat
- Suitability of seats for attaching belt-
secured child restra int sy stems
(/ page 64)
- Secu rethech ild restra int sy stem with the
seat belt on there ar seat (/ page 66).
R Notes on rear wa rd-facing and forw ard-facing
ch ild restra int sy stems on the front
passenger seat (/ page 68) Note
s onrear wa rd-facing and forw ard-facing
ch ild restra int sy stems on the front
passenger seat &
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. Obser
vethe specific instructions forth ere ar‐
wa rd-facing and forw ard-facing child restra int
sy stems (/ page 69). Wa
rning notice on the front passenger sun visor
Alw ays obser vethest atus of the front passenger
airbag on thePA SSENGER AIR BAG OFF indica‐
to r lamp:
R If it is absolutely necessary tofit a child
re stra int sy stem tothe front passenger seat,
alw ays obser vethe information on automatic
front passenger airbag shutoff (/ page 46).
R When using a rear wa rd-facing child restra int
sy stem on the front passenger seat, the front 68
Occupant saf ety
Internal use only

passenger airbag must alw
ays be disabled.
This is only the case if thePA SSENGER AIR
BA G OFF indicator lamp is lit continuously
(/ page 48).
R Ifth ePA SSENGER AIR BAG OFF indicator
lamp is off, the front passenger airbag is ena‐
bled. The front passenger airbag may deploy
during an accident.
Securing thech ild restra int sy stem with the
seat belt on the front passenger seat
When fitting a belt-secu redch ild restra int sys‐
te m on the front passenger seat, alw ays obser ve
th efo llowing:
O Obser
vethe no tes on rear wa rd-facing and
fo rw ard-facing child restra int sy stems on
th e front passenger seat (/ page 68).
O Obser
vethech ild restra int sy stem manufac‐
turer's ins tallation and operating instruc‐
tions.
O Fo
r a child restra int sy stem in the "Univer‐
sal" or "Semi-Universal" categor y,make
sure that the sy stem has been appr ovedfor
th eve hicle seat. Obser
vethe no tes under "Suitability of
seats for attaching belt-secu redch ild
re stra int sy stems" (/ page64).
O When using a
forw ard-facing child restra int
sy stem in weight category I: 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 rectl y.
O The backrest of
thefo rw ard-facing child
re stra int sy stem must, as far as possible, be
re sting on the seat backrest of the front
passenger 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.
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 Ne
ver place objects (e.g. cushions) under or
behind thech ild restra int sy stem. #
Set the front passenger seat as far back as
possible and mo vethe seat into the highest
position if possible. #
Fully retract the seat cushion length adjust‐
ment. #
Adjust the seat cushion inclination so that
th e front edge of the seat cushion is in the
highest position and there ar edge of the
seat cushion is in the lo west position. #
Set the seat backrest tothe most vertical
position possible. Occupant saf
ety69
Internal use only

&
WARNING Risk of accident and inju ry
due tochildren left unat tended in the
ve hicle
If ch ildren are tra velling in theve hicle, they
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. #
Alw ays activate the ins talled child
saf ety loc ksifch ildren are tra velling in
th eve 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. Ve
hicles forth eUni ted Kingdom: obser vethe
impor tant sa fety no tes in the "No tes on the addi‐
tional door lock" section. There are
child saf ety loc ksforth ere ar doors
and there ar side wind ows.
The child saf ety lock on there ar doors secures
each door separatel y.The doors can no longer
be opened from the inside. #
Press the le ver in direction 1(activate) or
2 (deactivate). #
Make sure that thech ild saf ety loc ksare
wo rking properly. Ac
tivating or deactivating the child saf ety
lock for the rear side windo ws #
Toactivate/deacti vate:press button 2.
The rear side wind owcan be opened or
closed in thefo llowing cases:
R indicator lamp 1is lit: via the switch on
th e driver's door Occupant saf
ety71
Internal use only

R
indicator lamp 1is off: via the switch on
th e cor responding rear door or driver's
door Note
s on pets in theve hicle &
WARNING Risk of accident and inju ry
due toanimals left unsecured or unat‐
te nded in theve hicle
If yo u lea veanimals in theve hicle unatten‐
ded or unsecured, they could press buttons
or switches, for ins tance.
An animal may:
R acti vate ve hicle equipment and become
trapped, forex ample
R swit chsystems on or off and endanger
ot her road users
Un secured animals may be throw n about the
ve hicle in theev ent of an accident, or sudden
st eering and braking manoeuvres, and injure
ve hicle occupants. #
Never lea veanimals unat tended in the
ve hicle. #
Alw ays cor rectly secu reanimals while
driving, e.g. using a suitable animal car‐
ri er. 72
Occupant saf ety
Internal use only

#
Vehicles with HANDS-FREE ACCESS: make
a kicking mo vement with your foot below the
bumper (/ page 83).
Ve hicles with boot lid conv enience closing#
Pull boot lid remo teoperating switch 1. #
Press and hold thep button on thekey. #
Ifth e boot lid is stopped in an intermediate
position, pull it upwards. Release it as soon
as it begins toopen.
Wi th th e boot lid opening limiter activated,
manually pull thestopped boot lid upwards.
If an obs tacle obstructs the boot lid during the
automatic opening process, bloc kage detection
will stop the boot lid. The automatic bloc kage
de tection function is only an aid and is not a
substitu teforyo ur attentiveness. Closing
the boot lid &
WARNING Risk of injury from unsecured
items in theve hicle
If objects, luggage or loads are not secured
or not secured suf ficientl y,they could slip,
tip ove r or be throw n around and thereby hit
ve hicle occupants.
There is a risk of injur y,particularly in the
ev ent of sudden braking or a sudden change
in direction. #
Alw aysstow objects in such a wayth at
th ey cannot be thro wn around. #
Before the journe y,secure objects, lug‐
ga ge or loads against slipping or tipping
ove r. Obser
vethe no tes on loading theve hicle. #
Pull the boot lid down wards using the handle
re cess and push it closed.
Ve hicles with boot lid conve nience closing &
WARNING Risk of becoming trapped
du ring au tomatic closing of the boot lid
Pa rts of the body could become trapped.
There may be people in the closing area. #
Make sure that nobody is in the vicinity
of the closing area during the closing
process. #
Use one of thefo llowing options tostop
th e closing process:
R Press thep button on thekey.
R Press or pull there mo teoperating
switch on the driver's door. Opening and closing
81
Internal use only

%
Awa rning tone sounds while the boot lid is
opening or closing. &
WARNING Risk of burn s causedbya hot
ex haust sy stem
The vehicle exhaust sy stem can become very
hot. If you use HANDS-FREE ACCESS, you
could burn yourself by touching theex haust
sy stem. #
Alw ays ensure that you on ly ma ke a
kicking mo vement within the de tection
ra nge of the sensors. *
NO
TEDama getotheve hicle caused by
unin tentional lyopening the boot lid: R
when using an automatic car wash
R when using a high pressure cleaner #
Deactivate KEYLESS-GO or make sure
that theke y located is at least 3 m
aw ay from theve hicle in such situa‐
tions. When making
the kicking mo vement, make sure
th at you are standing firm ly on the ground. Yo u
could otherwise lose your balance, e.g. on ice.
Obser vethefo llowing no tes:
R The key is behind theve hicle.
R Stand at least 30 cm away from theve hicle
while per form ing the kicking mo vement.
R Do not come into contact with the bumper
while making the kicking mo vement.
R Do not car ryout the kicking mo vement too
slowl y.
R The kicking mo vement must be towa rdsthe
ve hicle and back again. 1
Detection range of the sensors
If se veral consecutive kicking mo vements are
not successful, waitte n seconds.
Sy stem limits
The sy stem may be impaired or may not function
in thefo llowing cases:
R The sensors are dirty, e.g. due toroad salt or
sn ow.
R The kicking mo vement is made using a pros‐
th etic leg. 84
Opening and closing
Internal use only

The boot lid could be opened or closed uninten‐
tionall
y,in thefo llowing situations:
R A person's arms or legs are moving in the
sensor de tection range, e.g. when polishing
th eve hicle or picking up objects.
R Objects are mo ved or placed behind theve hi‐
cle, e.g. tensioning stra ps or luggage.
R Clamping stra ps, tarp aulins or other co ver‐
ings are pulled overth e bumper.
R A pr otective mat with a length reaching over
th e boot sill down into the de tection range of
th e sensors is used.
R The pr otective mat is not secured cor rectly.
R Workis being done on the trailer hitch, trail‐
ers or rear bicycle rack s.
Deactivate theke y functions (/ page74) or do
not car rytheke y about your person in such sit‐
uations. Swit
ching separate boot locking on or off If
yo u centrally unlo ck theve hicle while separate
locking is activated, the boot will remain loc ked. #
Toswitch on: slidethe switch toposition
1. #
Toswitch off: slidethe switch toposition
2.
% If an accident has been de tected, the boot
will unlock even if separate lo cking is
switched on. Ac
tivating/deactivating the bo otlid opening
limiter Multimedia sy
stem:
4 Vehicle 5
î Vehicle settings
5 Boot lid open. limiter
This function allo wsyouto avoid bumping the
boot lid on a low garage ceiling, forex ample. #
Activate Oor deacti vate ª the function. Side windo
ws Opening and closing
the side windo ws &
WARNING Risk of becoming trapped
when opening a side window
When you open a side wind ow, 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. Opening and closing
85
Internal use only

&
WARNING Risk of injury from unsecured
items in theve hicle
If objects, luggage or loads are not secured
or not secured suf ficientl y,they could slip,
tip ove r or be throw n around and thereby hit
ve hicle occupants.
There is a risk of injur y,particularly in the
ev ent of sudden braking or a sudden change
in direction. #
Alw aysstow objects in such a wayth at
th ey cannot be thro wn around. #
Before the journe y,secure objects, lug‐
ga ge or loads against slipping or tipping
ove r. &
WARNING Risk of injury duetoobjects
being stowed incor rectly
If objects in theve hicle interior are stowed
incor rectly, they can slide or be thrown
around and hit vehicle occupants. In addi‐
tion, cup holders, open stowage spaces and
mobile phone brac kets cann otalw aysre tain
all objects they contain. The
reis a risk of injur y,particularly in the
ev ent of sudden braking or a sudden change
in direction. #
Alw aysstow objects in such a wayth at
th ey cannot be thro wn around in such
situations. #
Alw ays make sure that objects do not
pr otru de from stowage spaces, luggage
nets or stowage nets. #
Close the loc kable stow age spaces
before starting a journe y. #
Alw aysstow and secure heavy, hard,
poin ted, sharp-edged, fragile or bulky
objects in the boot. Ve
hicles with automatic front passenge r air‐
bag shu toff:objects trapped under the front
passenger seat may inter fere with the function
of the automatic front passenger airbag shutoff
or damage the sy stem. Please obser vethe no tes
on the function of the automatic front passenger
airbag shutoff (/ page 46). &
WARNING ‑ Risk of accident or inju ry
when using the cup holder while the
ve hicle is in motion
The cup holder cannot hold a container
secure while theve hicle is in motion.
If yo u use a cup holder while theve hicle is in
motion, the conta iner may be flung around
and liquids could be spilled. The vehicle
occupants may come into contact with the
liquid and if it is hot, they could be scalded.
Yo u could be distracted from traf fic condi‐
tions and you may lose cont rol of theve hicle. #
Only use the cup holder when theve hi‐
cle is stationar y. #
Only use the cup holder for containers
of theright size. #
Alw ays close the conta iner, particularly
if th e liquid is hot. *
NO
TEDama getothe cup holder When
there ar armrest is folded back the cup
holder could become damaged. 11 2
Seats and stowing
Internal use only

The driving
characteristics of your vehicle are
dependent on the distribution of the load within
th eve hicle. You should bear thefo llowing in
mind when loading theve hicle:
R neverex ceed the permissible gross mass or
th e permissible axle loads forth eve hicle
(including occupants).
Information can be found on theve hicle iden‐
tification plate (/ page 428).
R the load must not pr otru de abo vethe upper
edge of the seat backrests.
R always place the load behind unoccupied
seats if possible.
R secure the load using the tie-down eyes and
distribute the load evenly. St
ow age spaces in theve hicle interior Overview of
the front stowage compa rt‐
ments 1
Stow age spaces in the doors
2 Stow age compartment in the armrest with a
multimedia and USB connection
3 Stow age compartment in the front cent re
console wi tha USB connection and charging
module for wireless charging of mobile
phones
4 Glovecompa rtment Through-loading
feature in there ar ben ch
seat (EAS Y-PA CK Quickfold) Fo
lding there ar seat backrest forw ards &
WARNING Risk of accident if there ar
ben chseat, rear seat and seat backrest
are not engaged
The rear ben chseat, rear seat and seat back‐
re st may fold forw ards, even while theve hi‐
cle is in motion.
R As a result, theve hicle occupant will be
pressed into the seat belt with increased
fo rc e. The seat belt will not be able to
pr otect as intended and could cause
additional injur y.
R Objects or loads in the boot or load com‐
partment cann otbe restra ined bythe
seat backrest. #
Make sure that there ar ben chseat, the
re ar seat and the seat backrest are
engaged before everytrip. 11 4
Seats and stowing
Internal use only

#
Foldthe seat backrest 2forw ards. #
If necessar y,reset the driver's or front
passenger seat.
Fo lding back there ar seat backrest
* NO
TEDama gecaused bytrapping the
seat belt when folding back the seat
backrest The seat belt could become trapped and
thus
be damaged when the seat backrest is folded
bac k. #
Make sure that the seat belt is not trap‐
ped when folding back the seat back‐
re st. #
Movethe driver's or front passenger seat for‐
wa rds, if necessar y. #
Foldthe cor responding seat backrest 1
back until it engages.
Left and right seat backrests: ifth e seat
backrest is not engaged and loc ked in place,
th is will be shown on the multifunction dis‐
play on the instrument clus ter.
A wa rning tone will also sound. Centre seat backres
t:ifth e seat backrest is
not engaged and loc ked in place, there d lock
ve rification indicator 2will be visible.
Lo cking there lease catch of the centre rear
seat backrest
Re quirements:
R The left and centre seat backrests are
engaged and joined toge ther.
Yo u can lock the cent reseat backrest release
cat chifyo uwa nttosecure the boot against
unauthorised access. The cent reseat backrest
can then be folded forw ards only toge ther with
th e left seat backrest. 11 6
Seats and stowing
Internal use only