2012 MERCEDES-BENZ C-CLASS SALOON brake sensor

#
Alw ays pay careful attention tothe traf‐
fi c situation; do not rely on Drive Away
Assi stalone. #
Be prepared tobrake or swer veas nec‐
essar y,prov ided the tra ffic situation
permits and that it is safe totake eva‐
sive action. Drive
AwayAssi stis only an aid. It is not a sub‐
st itute foryo ur attention tothe sur roundings.
The responsibility for safe manoeuvring and
parking remains with you. Make sure that no
persons, animals or objects etc. are in the
manoeuvring range.
A risk of a collision may arise in thefo llowing sit‐
uations, forex ample:
R Ifth e accelera tor and brake pedals are inter‐
ch anged.
R If an incor rect transmission position is
engaged.
Drive AwayAssi stis active under thefo llowing
conditions:
R IfPa rking Assist PARKTRONIC is activated. R
Ifyo u shift the transmission position tok or
h when theve hicle is stationar y.
R Ifth e de tected obs tacle is less than appr ox.
1. 0 m away.
R Ifth e manoeuvring assis tance function is
acti vated in the multimedia sy stem.
Sy stem limits
The per form ance of Drive AwayAssi stis limited
on inclines.
When driving with a trailer, Drive AwayAssi stis
not available.
% Also obse rveth e sy stem limits of Parking
Assist PARKTRONIC (/ page 227).
Fu nction of Cross Traf fic Alert
% Cross Traf fic Alert is only available forve hi‐
cles with Blind Spot Assist or Active Blind
Spot Assi st.
Cross Traf fic Alert can warndrivers of any cross‐
ing tra ffic when reve rsing and manoeuvring out
of a parking space. The radar sensors in the
bumper also monitor the area adjacent tothe
ve hicle. If a critical situation is de tected, the L
symbol appears inthe media display and
th eve hicle can be braked automatically.
If th era dar sensors are obstructed byvehicles
or other objects, de tection is not possible.
Cross Traf fic Alert is acti veunder thefo llowing
conditions:
R ifth eve hicle is reve rsing at a walking pace.
R manoeuvring assis tance is acti vated
( / page 237).
% Also obser vethe instructions on Blind Spot
Assist and Active Blind Spot Assi st
( / page 213).
Sy stem limits
Cross Traf fic Alert is not available on inclines.
Cross Traf fic Alert is not available when driving
with a trailer. 236
Driving and parking
Internal use only

*
NO
TEDama getosummer tyres at low
ambient temp eratures At
low ambient temp eratures, tears could
fo rm when driving with summer tyres, caus‐
ing permanent damage tothe tyre. #
Attemp eratures below 7 °C use i
M+S- tyres. Ac
cessory pa rts th at are not appr ovedfo ryo ur
ve hicle byMercedes-Benz or are not being used
cor rectly can impair the operating saf ety.
Before pu rchasing and using non-appr oved
accesso ries, visit a qualified specialist workshop
and enquire about:
R Suitability
R Legal stipulations
R Factory recommendations &
WARNING Risk of accident with high
per form ance tyres
The special tire tread in combination with the
optimised tyre compound means that the ri
sk of skidding and aquaplaning on wet
ro ads is inc reased.
In addition, the tyre grip is greatly reduced at
a low outside temp erature and tyre running
te mp erature. #
Switch on the ESP ®
and adapt your
driving style accordingly. #
Use i M+S tyres at outside temp er‐
atures of less than 10 °C. #
Only use the tyres forth eir intended
purpose. Obser
vethefo llowing when selecting, fitting and
re placing tyres:
R Countr y-specific requirements for tyre
appro valth at define a specific tyre type for
yo ur vehicle.
R Furthermore, the use of cer tain tyre types in
cer tain regions and areas of operation can
be highly beneficial.
R Only use tyres and wheels of the same type
(summer tyres, winter tyres, MOEx tended
tyres) and the same make. R
Only fit wheels of the same size on one axle
(left and right).
It is only permissible tofit a di fferent wheel
size in theeve nt of a flat tyre in order to
drive tothe specialist workshop.
R Do not make any modifications tothe brake
sy stem, the wheels or the tyres.
The use of shims or brake dust shields is not
permitted and may in validate theve hicle's
ge neral operating pe rmit.
R Vehicles with a tyre pressure monitoring
sy stem: allfitted wheels mu stbe equipped
with functioning sensors forth e tyre pres‐
sure monitoring sy stem.
R Attemp eratures below 7°C use winter tyres
or all-season tyres mar kedi M+Sfor all
wheels.
Wi nter tyres pr ovide the best possible grip in
wintry road conditions.
R For M+S tyres, only use tyres with the same
tread.
R Obser vethe maximum permissible speed for
th e M+S tyres fitted. 416
Wheels and tyres
Internal use only

Display messages
Possible causes/consequences and M
MSolutions
Active Brake Assist Func-
tions limited See Owner's
Manual *
Ve hicles with the Driving Assistance Package: Active Brake Assi stwith cross-traf fic function, Evasi veSteering
Assist or PRE‑SAFE ®
PLUS are temp orarily una vailable or only partially available.
Ve hicles without the Driving Assistance Package: Active Brake Assi stistemp orarily una vailable or only partially
av ailable. #
Consult a qualified specialist workshop.
Radar sensors dirty See
Owner's Manual *T
heradar sensor sy stem is malfunctioning. Possible causes:
R dirt on the sensors
R heavy rain or snow
R extended country driving wi thout other traf fic, e.g. in the desert
Driving sy stems and driving saf ety sy stems may be malfunctioning or temp orarily una vailable.
Once the cause of the problem is no longer present, the driving sy stems and driving saf ety sy stems will be available
again.
If th e display message does not disappear: #
Stop theve hicle in accordance with the tra ffic conditions. #
Clean all sensors (/ page 384). #
Restart the engine. Display messages and
warning/indicator lamps 485
Internal use only

Ý
Please wait 48 V battery charg‐
ing ........................................................ .488
_ Rear left seat backrest not
loc ked (Example)................................... 459
h Rectify tyre pressure.................... 491
Ø Refill Ad Blue See Owne r’s
Manual.................................................. 493
! Release parking brake .................. 468
¸ Replace air cleaner ...................... 462
Á Replace key.................................. 449
8 Reser vefuel le vel......................... 462
6 Restra int sys. malfunction Con‐
sult workshop........................................ 446
# See Owner's Manual.................... 487
Ù Steering malfunction Incre ased
ph ysical ef fort See Owner's Manual ...... 457
Ù Steering malfunction Stop
immediately See Owner's Manual ......... 458
# Stop vehicle Lea veengine run‐
ning ....................................................... 488 #
Stop vehicle See Owner's Man‐
ual......................................................... 487
É Stop vehicle Vehicle too low......... 479
ç suspended.................................... 472
: Switch off lights ........................... 452
: Switch on headlamps................... 452
Ø Top up AdBlue Emergency op.
in XXX miles See Owner's Manual......... 493
+ Top up coolant See Owner ’s
Manual.................................................. 460
¥ Top up washer fluid ...................... 460
! Turn on the ignition torelease
th e parking brake..................................4 68
d Vehicle is operational Switch
off ignition before exiting..................... .456
É Vehicle rising Please wait............ .480
É Vehicle rising................................4 80
h Warning tyre defect..................... .491
h Wheel sensor(s) missing .............. 490Ø
XX,X l Top up AdBlue Switch on
ignition, wait 60 sec. or eng. start
not poss................................................ 494
Ac tive Blind Spot Assi stcur rently
una vailable See Owner's Manual ...........476
Ac tive Blind Spot Assi stinope rative ....... 476
Ac tive Blind Spot Assi stnot available
when towing a trailer See Owner's
Manual .................................................. 477
Ac tive bonnet malfunction See Own‐
er's Manual........................................... 458
Ac tive Brake Assi stFunctions cur‐
re ntly limited See Owner's Manual ........ 484
Ac tive Brake Assi stFunctions limited
See Owner's Manual............................. 485
Ac tive Dis tance Assi stavailable again ...4 73
Ac tive Dis tance Assi stcur rently
una vailable See Owner's Manual ...........472
Ac tive Dis tance Assi stinope rative ......... 472 524
Index
Internal use only

Only select
Park (P) when vehicle is
st ationary.............................................. 462
Place theke y in the mar ked space
See Owner's Manual............................. 450
PRE-SAFE inoperative See Owner's
Manual..................................................4 48
Ra dar sensors dirty See Owner's
Manual..................................................4 85
Re duce speed ........................................ 492
Re versing not poss. Consult work‐
shop......................................................4 64
Risk of vehicle rolling Driver door
open and transmission not in P............. 463
Speed limit (winter tyres) XXX km/h .....473
St op vehicle Lea veengine running
Wa itTransmission cooling .....................464
To shift out of P or N,depress brake
and start engine.................................... 463 To
switch off the engine, press
St art/ Stop button for at least 3 sec‐
onds or 3 times. ................................... .460
Tr af fic Sign Assi stCamera view
re stricted See Owner's Manual............. 475
Tr af fic Sign Assi stcur rently una vaila‐
ble See Owner's Manual ........................474
Tr af fic Sign Assi stinope rative ............... 475
Tr ansmission Malfunction Stop............. 464
Ty re press. monitor cur rently una vail‐
able ...................................................... .489
Ty re press. monitor inoperative.............4 89
Ty re press. monitor inoperative No
wheel sensors ...................................... .490
Ty re(s) ove rheated................................. 492
Wi thout changing gear, consult work‐
shop......................................................4 64
Display on the windscreen
see Head-up display
Distance control see Active Dis tance Assi stDISTRONIC DI
STRO NIC
see Active Dis tance Assi stDISTRONIC
Door Additional door loc k................................ .76
Child saf ety lock (rear door).................... 70
Locking (emer gency key)......................... 79
Opening (from inside ).............................. 77
Un locking (emer gency key)..................... 79
Un locking (from inside).......................... .77
Door cont rol panel....................................... 16
Dr aw bar
see Tow- bar sy stem
Drive Away Assist ...................................... 235
Drive Away Assist
see Pr otection against collision
Drive position Enga ging................................................1 69
Drive prog ram display ............................... 16 6
Drive prog rams
see DYNA MIC SELECT
Driver's seat see Seat 526
Index
Internal use only

Driving abroad
Symmetrical low beam.......................... 12 5
Driving saf ety sy stem
ABS (Anti-lock Braking Sy stem).............1 87
Ac tive Brake Assi st................................ 206
Ad aptive brake lights............................. 19 2
BA S (Brake Assi stSystem).................... 187
Cameras............................................... .186
EBD (Electronic Brake forc e Distribu‐
tion).......................................................1 90
ESP ®
Crosswind Assis t.......................... 189
ESP ®
trailer stabilisation.......................1 89
Overview.............................................. .186
Ra dar and ultrasonic sensor s................ 186
Re sponsibility........................................1 85
ST EER CONTROL................................... 19 0
Driving sy stem
DY NA MIC BODY CONTROL.................... 218
Driving sy stem
see 360° Camera
see Active Blind Spot Assi st
see Active Dis tance Assi stDISTRONIC
see Active Emergency Stop Assist
see Active Lane Keeping Assist
see Active Parking Assist see
Active Speed Limit Assi st
see Active Steering Assist
see AIRMATIC
see ATTENTION ASSIST
see Blind Spot Assist
see Cruise control
see Driving saf ety sy stem
see HOLD function
see Limiter
see Parking Assist PARKTRONIC
see Reversing camera
see Traf fic Sign Assi st
Driving tips Driving abroad (symmetrical low
beam)....................................................1 25
Gene ral driving tips.............................. .159
optimised acceleratio n..........................15 8
Ru nning-in no tes.................................... 157
Dr ows iness de tection
see ATTENTION ASSIST
DY NA MIC BODY CONT ROL
Chassis.................................................. 218
Dynamic handling cont rol sy stem
see ESP ®
(Elect ronic Stability Prog ram) DY
NA MIC SELECT
Configuri ng drive program I................... 167
Displ aying engine data........................... 167
Displ aying vehicle dat a.......................... 167
Drive prog ram displa y............................ 16 6
Drive prog rams...................................... 16 5
Fu nction................................................ 16 5
Operating (DYNAMIC SELECT switch)....1 66
Selecting the drive prog ram.................. 16 6
Showing ope ration feedback.................1 67 E
E10 ............................................................ .432
Easy entry feature
Fu nction/no tes..................................... 109
Setting................................................... 11 0
Easy exitfeature
Fu nction/no tes..................................... 109
Setting................................................... 11 0
EBD (Electronic Brake forc e Distribu‐
tion)
Function/no tes..................................... 19 0
ECO Assist Function/no tes..................................... 16 4 Index
527
Internal use only