2012 MERCEDES-BENZ C-Class COUPE warning lights

1, 2, 3 ...
115 V socket ...................................... 249
12 V socket see Sockets
A
ABS (Anti-lock Braking System) Display message ............................ 202
Function/notes ................................ 57
Important safety notes ....................57
Warning lamp ................................. 230
Activating/deactivating cooling
with air dehumidification ................. 117
Active Blind Spot Assist Activating/deactivating (on-
board computer) ............................ 193
Function/information ....................174
Active Driving Assistance package . 174
Active Lane Keeping Assist Activating/deactivating (on-
board computer) ............................ 193
Display message ............................ 217
Function/information ....................177
Active Light System
Display message ............................ 212
Active service system PLUS
see ASSYST PLUS service interval
display
ADAPTIVE BRAKE ................................. 62
Adaptive Highbeam Assist Display message ............................ 213
Function/notes ............................. 104
Switching on/off (on-board
computer) ...................................... 195
Additives (engine oil) ........................ 330
Air bags Display message ............................ 209
Front air bag (driver, front
passenger) ....................................... 39
Important safety notes ....................38
Knee bag .......................................... 40
PASSENGER AIR BAG OFF
indicator lamp .................................. 42
Pelvis air bag ................................... 41
Safety guidelines ............................. 37
Side impact air bag ..........................40
Window curtain air bag ....................42
Air-conditioning system
see Climate control
Air pressure
see Tire pressure
Air vents
Glove box ....................................... 121
Important safety notes ..................120
Rear ............................................... 122
Setting ........................................... 120
Setting the center air vents ...........121
Setting the side air vents ...............121
Alarm system
see ATA (Anti-Theft Alarm system)
Alertness Assistant
see ATTENTION ASSIST
AMG menu (on-board computer) ..... 198
Anti-lock Braking System see ABS (Anti-lock Braking System)
Anti-Theft Alarm system
see ATA (Anti-Theft Alarm system)
Ashtray ............................................... 248
Assistance menu (on-board
computer) .......................................... 192
ASSYST PLUS see ASSYST PLUS service interval
display
ATA (Anti-Theft Alarm system)
Activating/deactivating ...................64
Function ........................................... 64
Switching off the alarm ....................64
ATTENTION ASSIST
Activating/deactivating .................193
Display message ............................ 216
Function/notes ............................. 169
Audio menu (on-board computer) .... 189
Audio system see separate operating instructions
Authorized Mercedes-Benz Center
see Qualified specialist workshop
AUTO lights
Display message ............................ 213
see Lights
Automatic headlamp mode .............. 1024Index

Automatic transmissionAutomatic drive program ...............134
Changing gear ............................... 132
Display message ............................ 224
Driving tips .................................... 132
Emergency running mode ..............137
Kickdown ....................................... 132
Manual drive program ....................135
Problem (malfunction) ...................137
Program selector button ................132
Pulling away ................................... 127
Releasing the parking lock
manually ........................................ 137
Selector lever ................................ 130
Shift ranges ................................... 134
Starting the engine ........................127
Steering wheel paddle shifters ......133
Transmission position display ........131
Transmission positions ..................131
Automatic transmission
emergency mode ............................... 137
B
Back support see Lumbar support
Backup lamp
Changing bulbs .............................. 110
Display message ............................ 212
Bag hook ............................................ 245
BAS (Brake Assist System) ................. 57
Basic settings see Settings
BAS PLUS (Brake Assist System
PLUS) .................................................... 58
Battery (SmartKey) Checking .......................................... 72
Important safety notes ....................72
Replacing ......................................... 72
Battery (vehicle)
Charging ........................................ 286
Display message ............................ 215
Important safety notes ..................284
Jump starting ................................. 287
Belt
see Seat belts
Blind Spot Assist
Activating/deactivating .................193
Notes/function .............................. 170
see Active Blind Spot Assist
Brake Assist System
see BAS (Brake Assist System)
Brake fluid
Display message ............................ 205
Notes ............................................. 331
Brake fluid level ................................ 268
Brake lamps Changing bulbs .............................. 110
Display message ............................ 211
Brakes
ABS .................................................. 57
BAS .................................................. 57
BAS PLUS ........................................ 58
Brake fluid (notes) .........................331
Display message ............................ 202
Driving tips .................................... 143
High-performance brake system ....145
Important safety notes ..................143
Maintenance .................................. 144
Parking brake ................................ 141
Warning lamp ................................. 229
Breakdown
see Flat tire
see Towing away/tow-starting
Bulbs
see Changing bulbs
C
California Important notice for retail
customers and lessees ....................21
Calling up a malfunction
see Display messages
Capacities
see Technical data
Car
see Vehicle
Care
Carpets .......................................... 275
Car wash ........................................ 270
Display ........................................... 274
Exterior lights ................................ 273
Gear or selector lever ....................274
Index5

Temperature gauge ........................ 182
Warning lamp ................................. 235
Cooling
see Climate control
Cornering light function
Changing bulbs .............................. 109
Display message ............................ 210
Function/notes ............................. 104
Crash-responsive emergency
lighting ............................................... 106
Cruise control Cruise control lever .......................147
Deactivating ................................... 148
Display message ............................ 221
Driving system ............................... 146
Function/notes ............................. 146
Important safety notes ..................146
LIM indicator lamp .........................147
Setting a speed .............................. 147
Storing and maintaining current
speed ............................................. 147
Cup holder
Center console .............................. 247
Important safety notes ..................246
Rear compartment .........................247
Customer Assistance Center (CAC) ... 24
Customer Relations Department ....... 24
D
Dashboard see Cockpit
Data
see Technical data
Daytime running lamps
Display message ............................ 212
Switching on/off (on-board
computer) ...................................... 195
Switching on/off (switch) ..............101
Delayed switch-off
Exterior lighting (on-board
computer) ...................................... 195
Interior lighting .............................. 196
Digital speedometer ......................... 187
Display (cleaning instructions) ........ 274
Display messages Calling up (on-board computer) .....201
Driving systems ............................. 216
Engine ............................................ 213
General notes ................................ 201
Hiding (on-board computer) ...........201
KEYLESS-GO .................................. 226
Lights ............................................. 210
Safety systems .............................. 202
Service interval display ..................268
SmartKey ....................................... 226
Tires ............................................... 221
Vehicle ........................................... 224
Distance display (on-board
computer) .......................................... 192
Distance recorder ............................. 187
see Odometer
see Trip odometer
Distance warning (warning lamp) .... 237
DISTRONIC PLUS Deactivating ................................... 156
Display message ............................ 219
Displays in the multifunction
display ........................................... 155
Driving tips .................................... 157
Function/notes ............................. 148
Important safety notes ..................148
Setting the specified minimum
distance ......................................... 155
Warning lamp ................................. 237
Doors
Automatic locking (on-board
computer) ...................................... 196
Automatic locking (switch) ............... 76
Central locking/unlocking
(SmartKey) ....................................... 68
Control panel ................................... 34
Display message ............................ 225
Emergency locking ........................... 77
Emergency unlocking .......................77
Important safety notes ....................75
Opening (from inside) ......................76
Drinking and driving ......................... 142
Drinks holder see Cup holder
Drive program
Automatic ...................................... 134
Display ........................................... 131
Manual ........................................... 135
SETUP (on-board computer) ..........198
Drive program selector ..................... 133Index7

Emergency spare wheelStorage location ............................ 279
Emergency Tensioning Devices
Function ........................................... 51
Safety guidelines ............................. 37
Emissions purification
Service and warranty information ....20
Engine
Check Engine warning lamp ........... 234
Display message ............................ 213
Emergency starting ........................291
Engine number ............................... 326
Irregular running ............................ 129
Starting problems ..........................129
Starting the engine with the
SmartKey ....................................... 127
Starting with KEYLESS-GO .............127
Switching off .................................. 140
Engine electronics
Problem (malfunction) ...................129
Engine oil
Adding ........................................... 265
Additives ........................................ 330
Checking the oil level ..................... 265
Checking the oil level using the
dipstick .......................................... 265
Display message ............................ 215
Filling capacity ............................... 328
Notes about oil grades ................... 330
Notes on oil level/consumption ....265
Temperature (on-board computer) . 198
Viscosity ........................................ 330
ESP ®
(Electronic Stability
Program) AMG menu (on-board computer) ...198
Deactivating/activating (AMG
vehicles) .......................................... 60
Deactivating/activating (except
AMG vehicles) ................................ 192
Deactivating/activating (notes;
except AMG vehicles) ......................59
Display message ............................ 202
ETS .................................................. 59
Function/notes ................................ 59
Important safety information ...........59
Warning lamp ................................. 231
ETS (Electronic Traction System) ....... 59Exhaust check ................................... 143
Exhaust tail pipe (cleaning
instructions) ...................................... 273
Exterior lighting see Lights
Exterior mirrors
Adjusting ......................................... 95
Dipping (automatic) .........................96
Folding in/out (automatically) .........96
Folding in/out (electrically) .............95
Folding in when locking (on-board
computer) ...................................... 197
Out of position (troubleshooting) .....96
Setting ............................................. 96
Storing settings (memory
function) .......................................... 97
Storing the parking position ............. 96
F
Filler cap see Fuel filler flap
First-aid kit ......................................... 278
Flat tire Changing a wheel/mounting the
spare wheel ................................... 279
MOExtended run-flat system .........283
Preparing the vehicle .....................279
Raising the vehicle .........................281
Floormat ............................................. 261
Front fog lamps ................................. 102
Display message ............................ 211
Switching on/off ........................... 102
Front windshield
see Windshield
Fuel
Additives ........................................ 329
Consumption statistics ..................187
Displaying the current
consumption .................................. 187
Displaying the range ......................187
Driving tips .................................... 142
Fuel gauge ....................................... 29
Important safety notes ..................328
Premium-grade unleaded gasoline . 328
Problem (malfunction) ...................140
Refueling ........................................ 137
Index9

J
Jack Storage location ............................ 278
Using ............................................. 281
Jump starting (engine) ...................... 287
K
Key see SmartKey
KEYLESS-GO
Convenience closing feature ............83
Display message ............................ 226
Locking ............................................ 69
Start/Stop button .......................... 125
Starting the engine ........................127
Unlocking ......................................... 69
Key positions
KEYLESS-GO .................................. 125
SmartKey ....................................... 125
Kickdown
Driving tips .................................... 132
Manual drive program ....................136
Knee bag .............................................. 40
L
Lamps see Warning and indicator lamps
Lane-change assistant
see Blind Spot Assist
Lane detection (automatic)
see Lane Keeping Assist
Lane Keeping Assist
Activating/deactivating .................193
Display message ............................ 217
Function/information ....................172
Lane Tracking package ..................... 170
Lap time (RACETIMER) ...................... 198
LATCH-type (ISOFIX) child seat
anchors ................................................ 54
Lighting see Lights
Lights
Activating/deactivating the
interior lighting delayed switch-off . 196
Automatic headlamp mode ............102
Cornering light function .................104
Display message ............................ 210
Driving abroad ............................... 100
Fog lamps ...................................... 102
Hazard warning lamps ...................103
High beam flasher .......................... 103
High-beam headlamps ...................103
Light switch ................................... 100
Low-beam headlamps ....................101
Parking lamps ................................ 100
Rear fog lamp ................................ 102
Switching Adaptive Highbeam
Assist on/off ................................. 195
Switching the daytime running
lamps on/off (on-board
computer) ...................................... 195
Switching the daytime running
lamps on/off (switch) ....................101
Switching the exterior lighting
delayed switch-off on/off (on-
board computer) ............................ 195
Switching the surround lighting
on/off (on-board computer) ..........195
Turn signals ................................... 103
see Changing bulbs
see Interior lighting
Light sensor (display message) ....... 213
LIM indicator lamp Cruise control ................................ 147
DISTRONIC PLUS ........................... 151
Loading guidelines ............................ 242
Locking see Central locking
Locking (doors)
Automatic ........................................ 76
Emergency locking ........................... 77
From inside (central locking
button) ............................................. 76
Locking centrally
see Central locking
Locking verification signal (on-
board computer) ............................... 196
Low-beam headlamps Changing bulbs .............................. 108
Display message ............................ 210
Setting for driving abroad
(symmetrical) ................................. 100
Switching on/off ........................... 101Index11

Useful information
i This Operator's Manual describes all
models and all standard and optional
equipment of your vehicle available at the
time of publication of the Operator's
Manual. Country-specific differences are
possible. Please note that your vehicle may
not be equipped with all features
described. This also applies to safety-
related systems and functions.
i Please read the information on qualified
specialist workshops ( Y page 23).
Occupant safety
Overview of occupant safety
In this section, you will learn the most
important facts about the restraint system
components of the vehicle.
The restraint system consists of:
R seat belts
R child restraint systems
R LATCH-type (ISOFIX) child seat anchors
Additional protection is provided by:
R SRS (Supplemental Restraint System)
R NECK-PRO head restraints
R Air bag system components with:
- PASSENGER AIR BAG OFF indicator lamp
- front-passenger seat with Occupant
Classification System (OCS)
The different air bag systems work
independently of each other. The protective
functions of the system work in conjunction
with each other. Not all air bags are deployed
in an accident.
GWARNING
Modifications to or work improperly
conducted on restraint system components
or their wiring, as well as tampering with
interconnected electronic systems, can lead
to the restraint systems no longer functioning
as intended.
Air bags or Emergency Tensioning Devices
(ETDs), for example, could deploy
inadvertently or fail to deploy in accidents
although the deceleration threshold for air
bag deployment is exceeded. Therefore,
never modify the restraint systems. Do not
tamper with electronic components or their
software.
i See "Children in the vehicle"
( Y page 52) for more information on
infants and children traveling with you in
the vehicle and restraints for infants and
children.
SRS (Supplemental Restraint System)
Introduction
SRS consists of:
R the 6 SRS warning lamp
R air bags
R air bag control unit (with crash sensors)
R Emergency Tensioning Devices
R belt force limiters
SRS reduces the risk of occupants coming
into contact with the vehicle's interior in the
event of an accident. It can also reduce the
effect of the forces to which occupants are
subjected during an accident.
SRS warning lamp
SRS functions are checked regularly when
you switch on the ignition and when the
engine is running. Therefore, malfunctions
can be detected in good time.
The 6 SRS warning lamp in the instrument
cluster lights up when the ignition is switched
on. It goes out no later than a few seconds
after the engine is started.
The SRS components are in operational
readiness when the 6 SRS warning lamp
is not lit while the engine is running .
36Occupant safetySafety

seats than on the front-passenger seat. Thus,
we strongly recommend that children be
placed in the rear seat whenever possible.
Regardless of seating position, children 12
years old and under must be seated and
properly secured in an appropriately sized
child restraint system or booster seat
recommended for the size and weight of the
child. For additional information, see the
"Children in the vehicle" section.
A child's risk of serious or fatal injuries is
significantly increased if the child restraints
are not properly secured in the vehicle and/
or the child is not properly secured in the child
restraint.XAdjust the seat and move the backrest to
an almost vertical position ( Y page 88).XPull the seat belt smoothly through belt
sash guide :.XWithout twisting it, guide the shoulder
section of the seat belt across the middle
of your shoulder and the lap section across
your hips.XEngage belt tongue ; in buckle =.XIf necessary, pull upwards on the shoulder
section of the seat belt to tighten the belt
across your body.
All seat belts except the driver's seat belt are
equipped with a special seat belt retractor to
securely fasten child restraint systems in the
vehicle. For further information on special
seat belt retractors, see ( Y page 54).
For more information about releasing the seat
belt with release button ?, see "Releasing
seat belts" ( Y page 50).
Releasing seat beltsXPress release button ?(Y page 49) and
guide belt tongue ; back towards belt
sash guide :.
i
If you have guided the seat belt back, it is
turned 180°. This is necessary in order to
guarantee that the seat belt is not twisted
and that it is routed correctly when the belt
is fastened.
! Make sure that the seat belt is fully rolled
up. Otherwise, the seat belt or belt tongue
will be trapped in the door or in the seat
mechanism. This could damage the door,
the door trim panel and the seat belt.
Damaged seat belts can no longer fulfill
their protective function and must be
replaced. Consult an authorized Mercedes-
Benz Center.
Belt warning for the driver and front
passenger
Regardless of whether the driver and front
passenger have fastened their seat belts
already, the 7 seat belt warning lamp
lights up for 6 seconds after every engine
start. It then goes out if the driver and the
front passenger have fastened their seat
belts.
If the driver's seat belt is not fastened after
the engine is started, an additional warning
tone will sound. The warning tone goes out
after approximately six seconds or once the
driver's seat belt is fastened.
50Occupant safetySafety

If the driver or front passenger have not
fastened their seat belt after 6 seconds and
the doors are closed, the 7 seat belt
warning lamp lights up.
R until the driver or the front passenger have
fastened their seat belts
R if a vehicle speed of 15 mph (25 km/h) is
exceeded once, a warning tone with
increasing intensity sounds additionally for
a maximum of 60 seconds or until the driver
or front passenger have fastened their seat
belts.
If the driver or front passenger undo their seat
belts during the journey, the 7 seat belt
warning lamp lights up and the warning tone
sounds again.
The warning tone ceases even if the driver or
front passenger have still not fastened their
seat belt after 60 seconds. The 7 seat belt
warning lamp stops flashing but continues to
be lit.
Once the vehicle is stationary, the warning
tone is reactivated and the 7 seat belt
warning lamp starts to flash again if the
vehicle speed exceeds 15 mph (25 km/h)
once.
The 7 seat belt warning lamp only goes
out if:
R both the driver and the front passenger
have fastened their seat belts.
or
R the vehicle is stationary and a door is open.
i For more information on the 7 seat
belt warning lamp, see "Warning and
indicator lamps in the instrument cluster,
seat belt" ( Y page 227).
Emergency Tensioning Devices, belt
force limiters
The seat belts are equipped with ETDs and
seat belt force limiters.
The ETDs tighten the seat belts in an accident,
pulling them close against the body.
The ETDs do not correct incorrect seat
positions or incorrectly fastened seat belts.
The ETDs do not pull vehicle occupants back
towards the backrest.
Seat belt force limiters, when triggered, help
to reduce the peak force exerted by the seat
belt on the vehicle occupant.
The seat belt force limiters for the front seats
are synchronized with the front air bags.
These take on a part of the deceleration force.
Thus, the force exerted on the occupant is
distributed over a greater area.
The ETDs can only be activated when:
R the ignition is switched on.
R the restraint systems are operational; see
"SRS warning lamp" ( Y page 36).
R the belt tongue is engaged in the buckle on
each of the lap-shoulder belts in the front.
R the front-passenger seat is occupied and
the belt tongue is engaged in the buckle on
the front-passenger side.
The ETDs on the seats in the rear
compartment are triggered independently of
the lock status of the seat belts.
The ETDs are triggered depending on the type
and severity of an accident:
R if, in the event of a head-on or rear-end
collision, the vehicle decelerates or
accelerates rapidly in a longitudinal
direction during the initial stages of the
impact
R if, in the event of a side impact, on the side
opposite the impact the vehicle
decelerates or accelerates rapidly in a
lateral direction
If the Emergency Tensioning Devices (ETDs)
are triggered, you will hear a bang, and a small
amount of smoke may also be released. Only
in rare cases will the bang affect your hearing.
The smoke that is released generally does not
constitute a health hazard. The 6 SRS
warning lamp lights up.Occupant safety51SafetyZ