trunk MERCEDES-BENZ C-Class SEDAN 2012 W204 Owner's Manual

E
EASY-ENTRY feature Activating/deactivating .................209
Function/notes ............................. 100
EASY-EXIT feature
Crash-responsive ........................... 101
Function/notes ............................. 100
Switching on/off ........................... 209
EBD (electronic brake force
distribution) Display message ............................ 216
Function/notes ................................ 64
Electrical fuses
see Fuses
Electronic brake force distribution
see EBD (electronic brake force
distribution)
Electronic Stability Program
see ESP ®
(Electronic Stability Program)
Electronic Traction System
see ETS/4ETS (Electronic
Traction System)
Emergency release
Driver's door .................................... 79
Fuel filler flap ................................. 151
Trunk ............................................... 82
Vehicle ............................................. 79
Emergency spare wheel
Storage location ............................ 293
Emergency Tensioning Devices
Function ........................................... 52
Safety guidelines ............................. 37
Emissions purification
Service and warranty information ....21
Engine
Check Engine warning lamp ........... 246
Display message ............................ 225
Emergency starting ........................305
Engine number ............................... 344
Irregular running ............................ 141
Starting problems ..........................141
Starting the engine with the
SmartKey ....................................... 139
Starting with KEYLESS-GO .............139
Switching off .................................. 153
Engine electronics
Problem (malfunction) ...................141Engine oil
Adding ........................................... 279
Additives ........................................ 349
Checking the oil level ..................... 279
Checking the oil level using the
dipstick .......................................... 279
Display message ............................ 227
Filling capacity ............................... 346
Notes about oil grades ................... 349
Notes on oil level/consumption ....279
Temperature (on-board computer) . 210
Viscosity ........................................ 349
ESP ®
(Electronic Stability
Program) AMG menu (on-board computer) ...210
Deactivating/activating (AMG
vehicles) .......................................... 62
Deactivating/activating (except
AMG vehicles) ................................ 204
Deactivating/activating (notes;
except AMG vehicles) ......................62
Display message ............................ 214
ETS/4ETS ........................................ 61
Function/notes ................................ 61
Important safety information ...........61
Warning lamp ................................. 243
ETS/4ETS (Electronic Traction
System) ................................................ 61
Exhaust check ................................... 156
Exhaust tail pipe (cleaning
instructions) ...................................... 287
Exterior lighting see Lights
Exterior mirrors
Adjusting ....................................... 101
Dipping (automatic) .......................102
Folding in/out (automatically) .......102
Folding in/out (electrically) ...........101
Folding in when locking (on-board
computer) ...................................... 209
Out of position (troubleshooting) ...102
Setting ........................................... 102
Storing settings (memory
function) ........................................ 103
Storing the parking position ..........102
Eyeglasses compartment ................. 255Index9

F
Filler cap see Fuel filler flap
First-aid kit ......................................... 292
Flat tire Changing a wheel/mounting the
spare wheel ................................... 293
MOExtended run-flat system .........297
Preparing the vehicle .....................293
Raising the vehicle .........................295
Floormat ............................................. 276
Frequencies Garage door opener .......................275
Front fog lamps ................................. 108
Display message ............................ 223
Switching on/off ........................... 108
Front windshield
see Windshield
Fuel
Additives ........................................ 348
Consumption statistics ..................199
Displaying the current
consumption .................................. 199
Displaying the range ......................199
Driving tips .................................... 155
Flexible fuel vehicles ......................347
Fuel gauge ....................................... 29
Important safety notes ..................347
Premium-grade unleaded gasoline . 347
Problem (malfunction) ...................153
Refueling ........................................ 150
Specifications ................................ 348
Tank content/reserve fuel .............346
Fuel filler flap
Emergency release ........................151
Opening/closing ............................ 151
Fuel level
Calling up the range (on-board
computer) ...................................... 199
Fuel tank
Capacity ........................................ 346
Problem (malfunction) ...................153
Fuse allocation chart (vehicle tool
kit) ...................................................... 292
Fuses Allocation chart ............................. 305
Before changing ............................. 305Dashboard fuse box .......................305
Fuse box in the engine
compartment ................................. 306
Fuse box in the trunk .....................306
Important safety notes ..................305
G
Garage door opener Clearing the memory .....................274
Frequencies ................................... 275
Notes ............................................. 270
Opening/closing the garage door ..273
Programming (button in the rear-
view mirror) ................................... 271
Gasoline ............................................. 150
Gear indicator (on-board
computer) .......................................... 210
Gear or selector lever (cleaning
guidelines) ......................................... 288
Genuine Mercedes-Benz parts ......... 342
Glove box ........................................... 254
H
Handbrake see Parking brake
Hazard warning lamps ...................... 109
Headlamp cleaning system Notes ............................................. 351
Headlamps
Adding fluid to cleaning system .....281
Cleaning system (function) ............109
Fogging up ..................................... 112
see Automatic headlamp mode
Head restraints
Adjusting ......................................... 95
Adjusting (electrically) .....................96
Adjusting (manually) ........................95
Adjusting (rear) ................................ 96
Installing/removing (rear) ................97
Luxury .............................................. 96
see NECK-PRO head restraints
see NECK-PRO head restraints/
NECK-PRO luxury head restraints
Heating
see Climate control
10Index

Stowage well beneath the trunk
floor .................................................... 258
Summer opening see Convenience opening feature
Summer tires ..................................... 312
Sun visor ............................................ 260
Supplemental Restraint System see SRS (Supplemental Restraint
System)
Surround lighting (on-board
computer) .......................................... 207
Switching air-recirculation mode
on/off ................................................. 130
Switching off the alarm (ATA) ............ 67
T
Tachometer ........................................ 195
Tail lamps Display message ............................ 223
Tank
see Fuel tank
Tank content
Fuel gauge ....................................... 29
Technical data
Notes ............................................. 342
Tires/wheels ................................. 335
Vehicle data ................................... 351
TELEAID
Call priority .................................... 268
Display message ............................ 218
Downloading destinations
(COMAND) ..................................... 269
Emergency call .............................. 266
Important safety notes ..................264
Locating a stolen vehicle ...............270
MB info call button ........................268
Remote vehicle locking ..................270
Roadside Assistance button ..........267
Search & Send ............................... 269
Self-test ......................................... 265
System .......................................... 265
Vehicle remote unlocking ..............269
Telephone
Accepting a call ............................. 203
Display message ............................ 237
Menu (on-board computer) ............202
Number from the phone book ........ 203
Redialing ........................................ 203
Rejecting/ending a call .................203
Temperature
Coolant .......................................... 194
Coolant (on-board computer) ......... 210
Engine oil (on-board computer) ...... 210
Outside temperature ...................... 195
Setting (climate control) ................128
Theft deterrent systems
ATA (Anti-Theft Alarm system) .........67
Immobilizer ...................................... 66
Through-loading feature ................... 256
Tilt/sliding sunroof see Sliding sunroof
Timing (RACETIMER) ......................... 211
Tiredness assistant see ATTENTION ASSIST
Tire pressure
Calling up (on-board computer) .....319
Checking manually ........................317
Display message ............................ 233
Maximum ....................................... 316
Notes ............................................. 315
Pressure loss warning ....................317
Recommended ............................... 313
Tire pressure monitoring system
Function/notes ............................. 319
Restarting ...................................... 321
Warning lamp ................................. 250
Tires
Aspect ratio (definition) .................333
Average weight of the vehicle
occupants (definition) ....................331
Bar (definition) ............................... 331
Characteristics .............................. 331
Checking ........................................ 311
Definition of terms .........................331
Direction of rotation ......................334
Display message ............................ 233
Distribution of the vehicle
occupants (definition) ....................334
DOT, Tire Identification Number
(TIN) ............................................... 330
DOT (Department of
Transportation) (definition) ............331
GAWR (Gross Axle Weight Rating)
(definition) ..................................... 332Index17

GVW (Gross Vehicle Weight)
(definition) ..................................... 332
GVWR (Gross Vehicle Weight
Rating) (definition) .........................332
Important safety notes ..................310
Increased vehicle weight due to
optional equipment (definition) ......332
Kilopascal (kPa) (definition) ...........332
Labeling (overview) ........................327
Load bearing index (definition) ......333
Load index ..................................... 330
Load index (definition) ...................332
Maximum loaded vehicle weight
(definition) ..................................... 332
Maximum load on a tire
(definition) ..................................... 333
Maximum permissible tire
pressure (definition) ....................... 333
Maximum tire load .........................325
Maximum tire load (definition) .......333
Optional equipment weight
(definition) ..................................... 333
PSI (pounds per square inch)
(definition) ..................................... 333
Replacing ....................................... 334
Service life ..................................... 311
Sidewall (definition) .......................333
Speed rating (definition) ................332
Storing ........................................... 335
Structure and characteristics
(definition) ..................................... 331
Temperature .................................. 327
TIN (Tire Identification Number)
(definition) ..................................... 333
Tire bead (definition) ......................333
Tire pressure (definition) ................333
Tire pressures (recommended) ......331
Tire size (data) ............................... 335
Tire size designation, load-bearing
capacity, speed rating .................... 328
Tire tread ....................................... 311
Tire tread (definition) .....................333
Total load limit (definition) .............334
Traction ......................................... 326
Traction (definition) .......................334
Tread wear ..................................... 326
Uniform Tire Quality Grading
Standards ...................................... 326Uniform Tire Quality Grading
Standards (definition) ....................331
Unladen weight (definition) ............332
Wear indicator (definition) .............334
Wheel rim (definition) ....................332
see Flat tire
Top Tether ............................................ 56
Towing Important safety guidelines ...........302
Installing the towing eye ................303
Removing the towing eye ...............304
With the rear axle raised ................304
Towing away
With both axles on the ground .......304
Tow-starting
Emergency engine starting ............305
Important safety notes ..................302
Transmission
see Automatic transmission
Transporting the vehicle .................. 304
Trim pieces (cleaning instructions) . 288
Trip computer (on-board
computer) .......................................... 199
Trip meter see Trip odometer
Trip odometer
Calling up ....................................... 199
Resetting (on-board computer) ......200
Trunk
Emergency release ..........................82
Important safety guidelines .............80
Locking separately ...........................82
Opening (automatically from
inside) .............................................. 81
Opening (automatically from
outside) ............................................ 81
Trunk lid
Display message ............................ 236
Opening/closing .............................. 80
Turn signals
Display message ............................ 222
Switching on/off ........................... 109
Type identification plate
see Vehicle identification plate 18Index

Door control panelFunctionPage:Opens the door78;%& Unlocks/locks
the vehicle
78
=Adjusts the seat electrically94?r 45=
Stores settings for the seat,
exterior mirrors and
steering wheel
103
A7 Zö\
Adjusts and folds the
exterior mirrors in/out
electrically
101
BW Opens/closes the
side windows
83
Cn Activates/
deactivates the override
feature for the side
windows in the rear
compartment
57
Do Opens the trunk lid8134Door control panelAt a glance

passenger front air bag is deactivated.
Should the 4 5 indicator lamp not
illuminate or go out while the restraint is
installed, please check installation.
Periodically check the 4 5 indicator
lamp while driving to make sure the 4
5 indicator lamp is illuminated. If the
4 5 indicator lamp goes out or
remains out, do not transport a child on the
front passenger seat until the system has
been repaired.
A child in a rear-facing child restraint on the
front passenger seat will be seriously
injured or even killed if the front passenger
front air bag inflates.
R If you have to place a child in a forward-
facing child restraint on the front passenger
seat, move the seat as far back as possible,
use the proper child restraint
recommended for the age, size and weight
of the child, and secure child restraint with
the vehicle's seat belt according to the
child seat manufacturer's instructions.GWARNING
Infants and small children should never share
a seat belt with another occupant. During an
accident, they could be crushed between the
occupant and seat belt.
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.
Children too big for a toddler restraint must
ride in seats using regular seat belts. Position
the shoulder belt across the chest and
shoulder, not face or neck. A booster seat
may be necessary to achieve proper seat belt
positioning for children over 41 lb (18 kg) until
they reach a height where a lap/shoulder belt
fits properly without a booster.
When the child restraint is not in use, remove
it from the vehicle or secure it with the seat
belt to prevent the child restraint from
becoming a projectile in the event of an
accident.
If an infant or child is traveling in the vehicle:XSecure the infant or child with an
appropriate infant or child restraint
recommended for the child's age and
weight.XMake sure that the infant or child is
properly secured at all times while the
vehicle is in motion.GWARNING
When leaving the vehicle, always remove the
SmartKey from the ignition lock. Always take
the SmartKey with you and lock the vehicle.
Do not leave children unattended in the
vehicle, even if they are secured in a child
restraint system, or with access to an
unlocked vehicle. A child's unsupervised
access to a vehicle could result in an accident
and/or serious personal injury. The children
could:
R injure themselves on parts of the vehicle
R be seriously or fatally injured through
excessive exposure to extreme heat or cold
R injure themselves or cause an accident with
vehicle equipment that can be operated
even if the SmartKey is removed from the
ignition lock or removed from the vehicle,
such as seat adjustment, steering wheel
adjustment, or the memory function
If children open a door, they could injure other
persons or get out of the vehicle and injure
themselves or be injured by following traffic.
Do not expose the child restraint system to
direct sunlight. The child restraint system's
metal parts, for example, could become very
hot, and the child could be burned on these
parts.
GWARNING
Do not carry heavy or hard objects in the
passenger compartment or trunk unless they
are firmly secured in place.
54Children in the vehicleSafety

iThe immobilizer is always deactivated
when you start the engine.
In the event that the engine cannot be
started when the starter battery is fully
charged, the immobilizer may be faulty.
Contact an authorized Mercedes-Benz
Center or call 1-800-FOR-MERCedes (in
USA) or 1-800-387-0100 (in Canada).
ATA (Anti-Theft Alarm system)
A visual and audible alarm is triggered if the
alarm system is armed and you open:
R a door
R the vehicle with the mechanical key
R the trunk lid
R the hood
The alarm is not switched off, even if you
close the open door that has triggered it, for
example.
i If the alarm stays on for more than 30
seconds, the emergency call system
mbrace (USA only) or TELE AID (Canada
only) initiates a call to the Customer
Assistance Center automatically. The
emergency call system initiates the call
provided that:
R you have subscribed to the mbrace/
TELE AID service.
R the mbrace/TELE AID service has been
activated properly.
R the required mobile phone, power supply
and GPS are available.
XTo arm: lock the vehicle with the SmartKey
or KEYLESS-GO.
Indicator lamp : flashes. The alarm
system is armed after approximately 15
seconds.XTo deactivate: unlock the vehicle with the
SmartKey or KEYLESS-GO.XTo stop the alarm using the SmartKey:
insert the SmartKey into the ignition lock.
The alarm is switched off.
or
XPress the % or & button on the
SmartKey.
The alarm is switched off.XTo stop the alarm using KEYLESS-GO:
grasp the outside door handle. The
SmartKey must be outside the vehicle.
The alarm is switched off.
or
XPress the Start/Stop button on the
dashboard. The SmartKey must be inside
the vehicle.
The alarm is switched off.Theft deterrent locking systems67SafetyZ

Useful information ..............................70
SmartKey ............................................. 70
Doors .................................................... 77
Trunk .................................................... 80
Side windows ...................................... 83
Sliding sunroof .................................... 8669Opening/closing

Any unauthorized modification to this
device could void the user’s authority to
operate the equipment.
The Product label with FCC ID and IC
certification number can be found in the
battery case of the SmartKey.
i Canada only:
This device complies with RSS-210 of
Industry Canada. Operation is subject to
the following two conditions:
1. This device may not cause interference,
and
2. this device must accept any interference
received, including interference that may
cause undesired operation of the device.
Any unauthorized modification to this
device could void the user’s authority to
operate the equipment.
The Product label with FCC ID and IC
certification number can be found in the
battery case of the SmartKey.
Locking and unlocking centrally
The SmartKey centrally locks/unlocks:
R the doors
R the trunk lid
R the fuel filler flap
:& Locks the vehicle;F Unlocks the trunk lid=% Unlocks the vehicle
When unlocking, the turn signals flash once.
When locking, they flash three times.
When it is dark, the surround lighting also
comes on if it is activated in the on-board
computer ( Y page 207).
If you activate the acoustic locking
confirmation function, you will hear the
following, depending on the date of
production of the vehicle:
R an acoustic signal when locking
or
R one acoustic signal when unlocking and
three when locking.
The audible signal can be activated and
deactivated using the on-board computer
( Y page 208).XTo unlock centrally: press the %
button.
If you do not open the vehicle within
approximately 40 seconds of unlocking:
R the vehicle is locked again.
R the theft deterrent locking system is armed
again.
XTo lock centrally: press the & button.
KEYLESS-GO
General notes
i USA only:
This device complies with Part 15 of the
FCC Rules. Operation is subject to the
following two conditions:
1. This device may not cause harmful
interference, and
2. this device must accept any interference
received, including interference that may
cause undesired operation.
Any unauthorized modification to this
device could void the user’s authority to
operate the equipment.
The Product label with FCC ID and IC
certification number can be found in the
battery case of the SmartKey.
i Canada only:
SmartKey71Opening/closingZ

X To unlock the vehicle: touch the inner
surface of the door handle.XTo lock the vehicle: touch sensor
surface :.XConvenience closing feature: touch
recessed sensor surface ; for an
extended period ( Y page 85).
If you pull on the handle of the trunk lid, only
the trunk of the vehicle is unlocked.
Changing the settings of the locking
system
You can change the setting of the locking
system in such a way that only the driver's
door and the fuel filler flap are unlocked. This
is useful if you frequently travel on your own.
XTo change the setting: press and hold
down the % and & buttons
simultaneously for approximately six
seconds until the battery check lamp
( Y page 74) flashes twice.
i
If the setting of the locking system is
changed within the signal range of the
vehicle, pressing the & or % button
locks or unlocks the vehicle.
The SmartKey now functions as follows:
XTo unlock the driver's door: press the
% button once.XTo unlock centrally: press the %
button twice.XTo lock centrally: press the & button.
The KEYLESS-GO function is changed as
follows:
XTo unlock the driver's door: touch the
inner surface of the door handle on the
driver's door.XTo unlock centrally: touch the inner
surface of the door handle on the front-
passenger door or the rear door.XTo lock centrally: touch the outer sensor
surface on one of the door handles.Restoring the factory settingsXPress the % and & buttons
simultaneously for approximately six
seconds until the battery check lamp
flashes twice.
Mechanical key
General notes
If the vehicle can no longer be locked or
unlocked with the SmartKey, use the
mechanical key.
If you use the mechanical key to unlock and
open the driver's door or the trunk lid, the
anti-theft alarm system will be triggered
( Y page 67).
There are several ways to turn off the alarm:
XTo turn the alarm off with the
SmartKey: press the % or & button
on the SmartKey.
or
XInsert the SmartKey into the ignition lock.
or
XTo deactivate the alarm with KEYLESS-
GO: press the Start/Stop button in the
ignition lock. The SmartKey must be in the
vehicle.
or
XLock or unlock the vehicle using KEYLESS-
GO. The SmartKey must be outside the
vehicle.
If you unlock the vehicle using the mechanical
key, the fuel filler flap will not be unlocked
automatically.
XTo unlock the fuel filler flap: insert the
SmartKey in the ignition lock.SmartKey73Opening/closingZ