2012 MERCEDES-BENZ C-CLASS SALOON ECO mode

Mercedes-Benz GenuineParts
+ ENVIRONMENTAL
NOTEEnvironmental
dama gecaused bynot using recycled
re conditioned components Mercedes‑Benz
AGoffers recycled recondi‐
tioned components and pa rts with the same
qu ality as new parts. The same entitlement
from the implied warranty is valid as for new
parts. #
Recycled reconditioned components
and pa rts from Mercedes‑Benz AG.*
NO
TEImpairment of the operating ef fi‐
ciency of there stra int sy stems from
ins talling accessory parts or from repairs
or we lding Airbags and seat belt
tensioners, as well as
control units and sensors forth ere stra int
sy stems, may be ins talled in thefo llowing
areas of your vehicle:
R doors R
door pillars
R door sills
R seats
R cockpit
R instrument clus ter
R centre console
R late ra lro of frame #
Do not ins tall accessory parts such as
audio sy stems in these areas. #
Do not car ryout repairs or welding. #
Have accesso ries retrofitted at a quali‐
fi ed specialist workshop. Yo
u could jeopardise the operating saf ety of your
ve hicle if you use parts, tyres and wheels as well
as accessories releva nt tosaf ety which ha venot
been appr ovedby Mercedes-Benz. Saf ety-re le‐
va nt sy stems, e.g. the brake sy stem, may mal‐
function. Only use Mercedes-Benz GenuineParts
or parts of equal qualit y.Only use tyres, wheels
and accessories that ha vebeen specifically
appr ovedfo ryo ur vehicle model. Mercedes-Benz
tests original parts and con ver‐
sion parts and accessories that ha vebeen spe‐
cifically appr ovedfo ryo ur vehicle model forth eir
re liability, saf ety and suitabilit y.Despite ongoing
ma rket resear ch, Mercedes-Benz is unable to
assess other parts. Mercedes-Benz therefore
accepts no responsibility forth e use of such
parts in Mercedes-Benz vehicles, even if they
ha ve been of ficially appr oved or independently
appr ovedby ate sting centre.
Cer tain parts are only of ficially appr ovedfor
ins tallation or modification if they comply wi th
legal requirements. All Mercedes-Benz Genuine‐
Pa rts meet the appr oval requ irements. The use
of non-appr oved parts may in validate theve hi‐
cle's general operating pe rmit.
This is the case in thefo llowing situations:
R theve hicle type is dif fere nt from that for
which theve hicle's general operating pe rmit
wa s granted.
R other road users could be endangered.
R theex haust gas or noise le velge ts wo rse. 22
General no tes
Internal use only

Alw
ays specify theve hicle identification number
(VIN) (/ page 428) when ordering Mercedes-
Benz GenuineParts. Owner's Manual
This Owner's Manual describes all models and
all standard and optional equipment available for
yo ur vehicle at the time of this Owner's Manual
going topress. Countr y-specific dif fere nces are
possible. No tethat your vehicle may not be fit‐
te d with all features desc ribed. This is also the
case for sy stems and functions releva nt to
saf ety. Therefore, the equipment on your vehicle
may dif fer from that in the descriptions and illus‐
trations.
The original pur chase ag reement foryo ur vehicle
contains a list of all of the sy stems in your vehi‐
cle.
Should you ha veany questions concerning
equipment and operation, please consult a
Mercedes-Benz Service Centre.
The Owner's Manual and Service Booklet are
impor tant documents and should be kept inthe
ve hicle. Operating saf
ety
* NO
TEPlug-in hybrid #
Obser vethe no tes in the Supplement.
Yo u could otherwise failto recognise
dangers. &
WARNING Risk of injury duetomalfunc‐
tions or sy stem failure
In order toavo id malfunctions or sy stem fail‐
ures: #
Alw ays ha vethe specified service/
maintenance workas well as any nec‐
essary repairs car ried out at a qualified
specialist workshop. &
WARNING Risk of accident or inju rydue
to improper modifications toelectronic
components
Modifications toelectronic components,
th eir software or wiring can impair their func‐
tionality and/or the functionality of other networ
ked components or saf ety-re leva nt
sy stems.
This can endanger theve hicle's operating
saf ety. #
You must not tamp er with wiring, elec‐
tronic components, or their software. #
Alw ays ha vewo rkon electrical and
electronic devices car ried out at a quali‐
fi ed specialist workshop. If
yo u modify the on-board electronics, thege n‐
eral operating perm it isrende red in valid.
Obser vethe "On-board electronics" section in
"Technical data". &
WARNING Risk offire due toflammable
materials on hot parts of theex haust
sy stem
Flammable material such as lea ves, grass or
twigs may ignite if they come into contact
wi th hot parts of theex haust sy stem. General no
tes23
Internal use only

We
ight category II: 15to25 kg
Left/right rear seat U, L
Centre rear seat 1
U, L
We ight category III: 22 to36 kg
Left/right rear seat U, L
Centre rear seat 1
U, L
1 Child restra int sy stems with a supporting brac ket
are not sui table forth is seat.
U Suitable forch ild restra int sy stems of the "Univer‐
sal" category in this we ight categor y.
L Suitable for semi-universal child restra int sy stems
according totheta ble in "Recommended child
re stra int sy stems", or if theve hicle and the seat are
lis ted in thech ild restrai nt sy stem manufacturer's
ve hicle model list. Note
s onchild restra int sy stems on the front
passenger seat
R If it is absolutely necessary foryo uto fit a
ch ild restra int sy stem tothe front passenger
seat, be sure toobser vethe information on
ch ild restra int sy stems on the front
passenger seat (/ page 69).
R Obser vethe specific instructions forthe
re ar wa rd-facing and forw ard-facing child
re stra int sy stems. If the front passenger seat
is occupied, ensure, bo thbefore and during
th e journe y,that thest atus of the front
passenger airbag is cor rect forth e cur rent
situation (/ page 48).
Fr ont passenger seat
We ight category 0: up to10 kg
Fr ont passenger airbag enabled 1
X
Fr ont passenger airbag disabled 1, 2
U, L
We ight category 0+: up to13 kg
Fr ont passenger airbag enabled 1
X Fr
ont passenger airbag disabled 1, 2
U, L
We ight category I: 9 to18 kg
Fr ont passenger airbag enabled 1
UF, L
Fr ont passenger airbag disabled 1, 2
U, L
We ight category II: 15to25 kg
Fr ont passenger airbag enabled 1
UF, L
Fr ont passenger airbag disabled 1, 2
U, L
We ight category III: 22 to36 kg
Fr ont passenger airbag enabled 1
UF, L
Fr ont passenger airbag disabled 1, 2
U, L
1 Ad just the seat cushion inclination so that the front
edge of the seat cushion is in the highest position and
th ere ar edge of the seat cushion is in the lo west posi‐
tion. Occupant saf
ety65
Internal use only

2 The
vehicle is equipped with automatic front
passenger airbag shutoff. The PASSENGER AIR BAG
OFF indicator lamp must be lit.
X Not suitable forch ildren in this we ight categor y.
U Suitable forch ild restra int sy stems of the "Univer‐
sal" category in this we ight categor y.
L Suitable for semi-universal child restra int sy stems
according totheta ble in "Recommended child
re stra int sy stems", or if theve hicle and the seat are
lis ted in thech ild restrai nt sy stem manufacturer's
ve hicle model list.
UF Suitable forfo rw ard-facing child restra int sy stems
of the "Universal" category in this we ight categor y. Securing
thech ild restra int sy stem with the
seat belt on there ar seat &
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. If
th e left and right seat backrests are not
engaged and loc ked in place, this will be shown on
the multifunction display on the instrument
clus ter.
If th e cent reseat backrest is not engaged and
loc ked in place, there d lock verification indica‐
to r will be visible.
When fitting a belt-secured child restra int
sy stem, obser vethefo llowing:
O Alw
ays comply with the manufacturer's
ins tallation and operating instructions for
th ech ild restra int sy stem used.
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 oved for
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
weight category 0/0+
baby car seat and a weight category I
re ar wa rd-facing child restra int sy stem
on a rear seat: adjustthe front seat so that
th e seat does not touch thech ild restra int
sy stem. 66
Occupant saf ety
Internal use only

Ve
hicles with a stationary heater: &
swit ches thest ationary heater on/off
(/ page 149)
9 g Switches air- recirculation mode on/off
(/ page 147)
A Vehicles with THERMATIC air conditioning
contro l panel: ¿switches A/C function
on/off (/ page145)
Ve hicles with THERMOTRONIC air condition‐
ing contro l panel:_adjusts the air distri‐
bution, right
B w Setsthete mp erature on the front
passenger side Re
ar operating unit in vehicles with
THERMOTRONIC air conditioning control
panel 1
Setting thete mp erature
2 Display
3 Setting the air flow Operating
the clima tecont rol sy stem Switching clima
tecont rol on/off #
Toswitch on: setthe air flow toleve l 1 or
higher using theH button. #
Toswitch off: setthe air flow toleve l 0 using
th eH button.
If climate control is switched off, the windo ws
may mist up more quickl y.Switch climate con‐
trol off only briefl y. Switching
the A/C function on/off using the
air conditioning control panel The A/C function heats, cools and dehumidi
fies
th eve hicle's interior air. #
Press the¿ button.
Switch off the A/C function only brief ly;ot her‐
wise, the windo wsmay mist up more quickl y.
Condensation may drip from the underside of
th eve hicle when cooling mode is active. This is
not indicative of a fault. Climate cont
rol14 5
Internal use only

Driving
Note
s on Mercedes-AMG vehicles Obser
vethe no tes on thefo llowing topics in the
Supplement, otherwise you may failto recognise
dangers.
% The availability of cer tain functions depends
on the equipment and model of theve hicle.
R Emotion Start
R Rear axle locking dif fere ntial
R AMG Performance exhaust sy stem
R AMG ceramic high-per form ance composite
brake sy stem
R Traction control
R RACE START
R AMG RIDE CONTROL
R AMG steering-wheel buttons Switching on
the po wer supp lyor ignition &
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. Re
quirements:
R theke y is in theve hicle and is recognised.
R the brake pedal is not depressed. 15 4
Driving and pa rking
Internal use only

#
Toswitch on the po wer supp ly:press but‐
to n1 once.
Yo u can activate the windscreen wiper, for
ex ample.
The po wer supp lyis switched off again if thefo l‐
lowing conditions are me t:
R You open the driver's door.
R You press but ton1 twice more. #
Toswitch on the ignition: press button 1
twice.
The indicator lamps in the instrument clus ter
light up.
The ignition is switched off again if one of the
fo llowing conditions is me t:
R You do not start theve hicle within
15 minutes and the transmission is in posi‐
tion jorthe electric parking brake is
applied.
R You press but ton1 once. St
arting theve hicle St
arting theve hicle with thest art/s top but‐
ton &
DANG ER Risk of death caused by
ex haust gases
Combustion engines emit poisonous exhaust
ga ses such as carbon monoxide. Inhaling
th ese exhaust gases is hazardous tohealth
and leads topoisoning. #
Never lea vethe engine or, if present,
th e auxiliary heating running in an
enclosed space wi thout suf ficient venti‐
lation. &
WARNING Risk offire due toflammable
material in the engine compartment or
th eex haust sy stem
Flammable materials may ignite. #
Therefore, check regularly that there
are no flammable materials in the
engine compartment or on theex haust
sy stem. Re
quirements:
R theke y is in theve hicle and is recognised. #
Shift the transmission toposition jori. #
Depress the brake pedal and press button
1 once. #
Ifth eve hicle does not star t:switch off non-
essential consumers and press button 1
once. #
Ifth eve hicle still does not start and the dis‐
play message Place the key in the marked
space See Owner's Manual also appears in
th e multifunction display: start theve hicle
with theke y in the mar ked space (emer gency
operation mode) (/ page 156).
% You can swit choff the engine while driving.
By pressing button 1for about thre e sec‐
onds or bypressing button 1thre e times
within thre e seconds. Be sure toobser vethe
saf ety no tes under "Driving tips"
(/ page 159). Driving and pa
rking 15 5
Internal use only

The engine is switched off automatically in
the
fo llowing situations if all vehicle conditions for
an automatic engine stop are me t:
R You brake theve hicle toast andstill in trans‐
mission position hori.
R Vehicles with a 48 V on-board electrical
sy stem: You depress the brake pedal when
tra velling at a low speed.
If th e sy stem has de tected one of thefo llowing
situations, the engine will not stop:
R Youstop at a stop sign and there is no vehi‐
cle in front of you.
R The vehicle that stopped in front of you
st arts up again.
R You manoeuv re, turn thesteering wheel
sharply or engage reve rsege ar.
% Ifth e sy stem de tects an intellige ntstop
inhibitor, forex ample, a stop sign, the engine
will not stop.
If yo u activate the HOLD function or engage
th e park position j,the engine can be
switched off in spite of an intelligent stop
inhibitor. The engine is
restar ted automatically if:
R You en gage transmission position hork.
R You depress the accelerator pedal.
R An automatic engine start is requiredbythe
ve hicle.
R Youre lease the brake pedal.
R Vehicles with a 48 V on-board electrical
sy stem:
- Youre lease the brake pedal on a downhill
gradient and theve hicle does not roll.
- The vehicle rolls on a downhill gradient
and does not automatically enter glide
mode at 20 km/h.
ECO start/ stop function symbols in the multi‐
function display:
R The symbol è(green) appears when the
ve hicle is at a standstill: the engine was
switched off bythe ECO start/ stop function.
R The symbol ç(yellow) appears when the
ve hicle is at a standstill: not all vehicle condi‐
tions for an engine stop ha vebeen met. R
Neither the symbol ènorç appears
when theve hicle is at a standstill: an intelli‐
ge nt stop inhibitor was de tected, forex am‐
ple, a stop sign.
If th e engine was switched off bythe ECO start/
st op function and you lea vetheve hicle, a warn‐
ing tone sounds and the engine is not restar ted.
In addition, thefo llowing display message
appears in the multifunction display:
Vehicle is operational Switch off ignition before
exiting
If yo u do not swit choff the ignition, it is auto‐
matically switched off af terth re e minutes. 16 2
Driving and pa rking
Internal use only