2012 MERCEDES-BENZ C-CLASS SALOON check engine

Wa
rning/indicator lamp
Possible causes/consequences and M
MSolutions
J Brake sy stem warning lamp
(yellow) *T
he yellow brake sy stem warning lamp is lit while the engine is running. &
WARNING Risk of an accident due toa brake sy stem malfunction
If th e brake sy stem is malfunctioning, braking characteristics may be impaired. #
Drive on carefull y. #
Have the brake sy stem checked immediately at a qualified specialist workshop. #
Adjust your speed and drive on carefull y,leaving a suitable dis tance totheve hicle in front. #
Ifth e multifunction display sho wsa display message, obse rve it. #
Consult a qualified specialist workshop.
J Brake sy stem warning lamp
(red) *T
he red brake sy stem warning lamp is lit while the engine is running.
Po ssible causes:
R The brake forc e boosting is malfunctioning and the braking characteristics may be af fected.
R The reis insuf ficient brake fluid in the brake fluid reser voir. #
Notethe messages on the multifunction displa y. &
WARNING Risk of accident and inju ryif brake forc e boosting is malfunctioning
If brake forc e boosting is malfunctioning, increased brake pedal forc e may be necessary for braking. The braking
ch aracteristics may be impaired. The braking dis tance can increase in emergency braking situations. 506
Display messa ges and warning/indicator lamps
Internal use only

Wa
rning/indicator lamp
Possible causes/consequences and M
MSolutions
The steerability and braking characteristics are heavily impaired and the braking dis tance may increase. In addi‐
tion, other driving saf ety sy stems are switched off. #
Drive on carefull y. #
Have the brake sy stem checked immediately at a qualified specialist workshop. ÷
ESP ®
wa rning lamp *
The yellow ESP ®
wa rning lamp flashes while theve hicle is in motion.
or
The yellow ESP ®
wa rning lamp is lit while the engine is running.
The yellow ESP ®
wa rning lamp flashes while theve hicle is in motion:
One or more wheels has reached its grip limit (/ page188). #
Adapt your driving style to suit thero ad and weather conditions.
The yellow ESP warning lamp ®
is lit while the engine is running.
ESP ®
is malfunctioning.
Other driving sy stems and driving saf ety sy stems (e.g. BAS) may also be malfunctioning. #
Notethe messages on the multifunction displa y. &
WARNING Risk of skidding if ESP ®
is malfunctioning
If ESP ®
is malfunctioning, ESP ®
cannot car ryout vehicle stabilisation. In addition, other driving saf ety sy stems
are switched off. Display messages and
warning/indicator lamps 509
Internal use only

Contacts
Calling up.............................................. 322
Deleting................................................ .323
Downloading (from mobile phone)......... 321
Importing.............................................. 322
Importing (o verview)............................. 322
Information........................................... .321
Making a call......................................... 323
Na me form at......................................... 322
Options................................................ .323
St oring..................................................3 23
Controller Operating.............................................. 267
Conv enience closing .................................. .88
Con venience opening ..................................87
Coolant (engine) Check le vel............................................ 379
No tes....................................................4 38
Cooling see Clima tecontrol
Co pyright..................................................... 36
Cornering light ...........................................1 29
Cross Traf fic Alert..................................... 236 Crosswind Assist
Function/no tes..................................... 189
Cruise control Activating.............................................. 19 5
Buttons.................................................. 19 5
Calling up a spee d................................. 19 5
Deactivating.......................................... 19 5
Fu nction................................................ 194
Re quirements........................................ 19 5
Selecting............................................... 19 5
Setting a speed..................................... 19 5
St oring a speed.....................................1 95
Sy stem limitations................................. 194 D
Dashboa rd
see Cockpit
Data acquisition Vehicle.................................................... 33
Data import/export Function/no tes..................................... 280
Importing/exporting.............................. 281
Data pr otection rights
Data storage............................................ 36 Data
storage
Data pr otection rights............................. 36
Electro nic control units........................... 33
Online service s........................................ 35
Ve hicle.................................................... 33
Date Setting the time and date automati‐
cally....................................................... 275
Deactivating the ala rm(ATA ) ...................... 95
Deale rship
see Qualified speciali stwo rkshop
Declaration of conformity Electromagnetic compatibility.................25
Jack......................................................... 28
Specific absor ption rate.......................... 25
TIREFIT kit............................................... 29
Wi reless vehicle components.................. 25
Decorative foil (cleaning instructions) .... 383
DeNOx agent see AdBlue ®
De stination
Editing intermediate destinations......... .292
Editing the pr evious destinations.......... 303 Index
521
Internal use only

é
ATTENTION ASSIS T:Take a
break!....................................................4 70
: Automatic driving lights inoper‐
ative....................................................... 451
Á Change key bat teries ...................4 49
J Checkbrake fluid le vel................. 469
# Check brake pads See Owner's
Manual.................................................. 469
5 Check engine oil le vel when
next refuelling....................................... 496
ï Checktrailer hitch lo ck................ 456
h Check tyre(s)................................ 490
! Clean the fuel filter ...................... 462
ÿ Coolant Stop vehicle Switch
engine off..............................................4 61
! currently una vailable See Own‐
er's Manual ............................................ 481
÷ currently una vailable See Own‐
er's Manual .......................................... .482 5
Engine oil le vel cannot be
measured .............................................. 498
5 Engine oil le velRe duce oil le vel.... 497
5 Engine oil le velSt op vehicle
Switch engine off.................................. 497
5 Engine oil pressure Stop
Switch off engine.................................. 498
ä Fault Drive at max. 80 km/h........ 478
6 Front left malfunction Consult
wo rkshop (e xample).............................. 446
& inoperative Battery low................ 455
& inoperative Refuel vehicle ............ 455
& inoperative See Owner's Man...... 455
! inoperative See Owner's Man‐
ual......................................................... 482
÷ inoperative See Owner's Man‐
ual......................................................... 483
T inoperative See Owner's Man‐
ual......................................................... 484
G Inoperative................................... 486 :
Intelligent Light Sy stem inoper‐
ative...................................................... 452
Á Key not de tected (red displ ay
messa ge)............................................... 450
Á Key not de tected (white display
messa ge)............................................... 449
: Left dipped beam (e xamp le)........ .451
6 Left windowbag malfunction
Consult workshop (e xample)................ .446
¢ Lowe ring..................................... .479
: Malfunction See Owner's Man‐
ual......................................................... 451
ð Maximum speed exceeded ........... 473
Ø ..................................................... 493
ç Off................................................ 472
ë Off................................................ 470
! Parking brake See Owner's
Manual .................................................. 465
É Please reduce speed .................... 480 Index
523
Internal use only

ECO display
Function................................................ 16 3
ECO start/s top function
Au tomatic engine start.......................... 161
Au tomatic engine stop...........................1 61
Operation............................................... 161
Switching off/on................................... 16 3
Electric pa rking brake
Applying automaticall y.......................... 182
App lying or releasing manuall y.............. 183
Emergency braking................................ 184
Re leasing automaticall y......................... 183
Electrical fuses see Fuses
Electromagnetic compatibility Declaration of conformity........................ 25
Electronic Stability Prog ram
see ESP ®
(Electronic Stability Prog ram)
Emer gency
Fire extinguisher.................................... 389
Fir st-aid kit (so ftsided).........................3 89
Overview of the help functions................ 18
Re moving thewa rning triangle.............. 388
Saf etyve st............................................ 388 Setting up
thewa rning triangle............. 389
Emer gency braking ................................... 184
Emer gency braking
see BAS (Brake Assi stSystem)
Emer gency engine start............................ 407
Emer gency key
Inserting/removing................................. 74
Locking a door........................................ 79
Un locking a door..................................... 79
Emer gency operation mode
St arting theve hicle...............................1 56
Emer gency spare wheel
No tes..................................................... 424
ENERGIZING COMFORT Overview of programmes...................... 285
Starting the programme........................ 286
Engine ECO start/ stop function........................ 161
Engine number...................................... 428
St arting (eme rgency operation mode)...1 56
St arting (Remo teOnline).......................1 57
St arting (s tart/s top button).................. 15 5
St arting assis tance................................ 400 Switching off (s
tart/s top button)...........1 78
Engine bonnet Function (active bonnet)........................ 373
Opening/closing....................................3 74
Engine data Displaying.............................................. 167
Engine electronics Notes....................................................4 26
Engine number......................................... .428
Engine oil Additives...............................................4 36
Capacity................................................ 437
Che cking the oil le vel using the oil
dipstick..................................................3 76
Checking the oil le vel using the on-
board computer..................................... 377
MB-F reigabe or MB-Appr oval................ .437
Quality................................................... 437
To pping up............................................. 378
Entering characters
Fu nction/no tes..................................... 272
On theto uchpad.................................... 274
Using the controller............................... 273528
Index
Internal use only

Wa
rning/indicator lamp
! ABSwarning lamp....................... .508
J Brake sy stem warning lamp
(red)...................................................... 506
J Brake sy stem warning lamp
(yellow).................................................. 506
ÿ Coolant warning lamp................. .502
! Electric parking brake indicator
lamp (red).............................................. 505
# Electrical fault warning lamp....... .504
; Engine diagnosis warning lamp....5 04
å ESP®
OFF warning lamp.............. .510
÷ ESP®
wa rning lamp..................... .509
8 Fuelreser ve wa rning lamp
lights up................................................ 505
Ù Powe rst eering warning lamp
(red)...................................................... .501
6 Restra int sy stem warning lamp....5 00
ü Seat belt warning lamp............... .500 ä
Suspension warning lamp (yel‐
low)....................................................... 508
! The elect ric pa rking brake (yel‐
low) indicator lamp............................... .505
ï Trailer tow hit chwarning lam p..... 502
h Tyre pressure monitoring sys‐
te m wa rning lamp................................. .511
L Warning lamp for dis tance
wa rning function................................... .507
Wa rning/indicator lamps
Overview............................................... 498
PA SSENGER AIR BAG.............................. 48
Wa rranty ...................................................... 33
Wa sher fluid
see Windsc reen washer fluid
Wa shing byhand (care)............................ 382
Wa ter tank
see Air-water duct
We ather information ................................. 313What3words
Destination entry with a 3 word
address................................................. 293
Wheel change
Fitting a new wheel............................... 422
Lo we ring theve hicle.............................4 23
Prepa ration............................................ 41 8
Ra ising theve hicle................................4 20
Re moving a wheel................................. 422
Re moving/fitting hub caps....................4 19
Wheel change
see Emergency spare wheel
Wheel rotation .......................................... .417
Wheels Care ...................................................... 384
Changing hub caps................................ 419
Checking............................................... .410
Checking the tyre pressure (tyre
pressure monitoring sy stem)................. 413
Fitting................................................... .422
Flat tyr e................................................. 390
Inter changing......................................... 417
MOExtended tyres................................. 391
Noise.....................................................4 10 Index
551
Internal use only