door lock MERCEDES-BENZ S-Class 2012 W221 Owner's Manual

Carsee Vehicle
Care
Carpets .......................................... 469
Car wash ........................................ 463
Display ........................................... 467
Exterior lights ................................ 466
Gear or selector lever ....................468
Matte finish ................................... 465
Night View Assist Plus ...................467
Notes ............................................. 463
Paint .............................................. 465
Plastic trim .................................... 468
Power washer ................................ 464
Rear view camera .......................... 467
Roof lining ...................................... 469
Seat belt ........................................ 469
Seat cover ..................................... 469
Sensors ......................................... 467
Steering wheel ............................... 468
Tail pipes ....................................... 467
Trim pieces .................................... 468
Washing by hand ........................... 464
Wheels ........................................... 465
Windows ........................................ 466
Wiper blades .................................. 466
Wooden trim .................................. 468
Cargo tie down rings ......................... 435
Car pool lanes .................................... 169
Car wash (care) ................................. 463
Category Satellite radio ................................ 218
CD
Copy protection ............................. 229
Fast forward/fast rewind ...............225
General information .......................229
Inserting ........................................ 220
Inserting/loading (Rear Seat
Entertainment System) ..................251
Mode, switching to ........................221
Multisession .................................. 228
Notes on discs ............................... 229
Operating the player/changer
(on-board computer) ......................379
Pause function ............................... 223
Playback options ........................... 228
Player/changer operation
(COMAND) ..................................... 220Removing/ejecting (Rear Seat
Entertainment System) ..................251
Safety notes .................................. 220
Selecting a media type ..................224
Selecting a track ............................ 224
Sound settings (balance, bass,
fader, treble) .................................. 135
Cell phone
see Mobile phone
Center console ..................................... 38
Central locking Automatic locking feature
(COMAND) ..................................... 264
Locking/unlocking (SmartKey) ........78
Changing batteries (remote
control, headphones) ........................ 247
Changing bulbs High-beam headlamps (vehicles
with halogen daytime running
lamps) ............................................ 284
High-beam headlamps (vehicles
with LED daylight lamps) ...............284
Important safety notes ..................282
Overview of bulb types ..................283
Changing direction
Announcement phase ....................166
Change of direction phase .............167
Preparation phase .........................166
Character bar ..................................... 129
Characters Entering ......................................... 130
Entering (address book, phone
book) ............................................. 132
Entering (navigation) ......................129
Child-proof locks
Important safety notes ....................66
Rear doors ....................................... 67
Children
In the vehicle ................................... 62
Restraint systems ............................ 62
Child seat
LATCH-type (ISOFIX) child seat
anchors ............................................ 65
Special seat belt retractor ...............64
Top Tether ....................................... 65
Cigarette lighter ................................ 440Index7

Setting the specified minimum
distance ......................................... 338
Warning lamp ................................. 428
Dolby Digital ...................................... 136
Doors Automatic locking (switch) ............... 86
Central locking/unlocking
(SmartKey) ....................................... 78
Control panel ................................... 40
Display message ............................ 418
Emergency locking ........................... 88
Emergency unlocking .......................87
Important safety notes ....................85
Opening (from inside) ......................86
Power closing feature ......................87
Drinking and driving ......................... 326
Drinks holder see Cup holder
Drive program
Automatic ...................................... 314
Manual ........................................... 316
Driver's door
see Doors
Driver's seat
see Seats
Driving abroad
Mercedes-Benz Service .................463
Symmetrical low beam ..................276
Driving Assistance package ............. 360
Driving safety systems ABS (Anti-lock Braking System) .......69
ADAPTIVE BRAKE ............................. 73
BAS (Brake Assist System) ..............70
BAS PLUS (Brake Assist System
PLUS) ............................................... 70
Electronic brake force distribution ...73
ESP ®
(Electronic Stability
Program) .......................................... 71
ETS/4ETS (Electronic Traction
System) ........................................... 72
Important safety information ...........69
Overview .......................................... 68
PRE-SAFE ®
Brake ............................. 73
Driving systems
Active Blind Spot Assist .................364
Active Body Control .......................345Active Driving Assistance
package ......................................... 363
Active Lane Keeping Assist ............367
AIRMATIC ...................................... 343
ATTENTION ASSIST ........................356
Blind Spot Assist ............................ 360
Cruise control ................................ 330
Display message ............................ 408
DISTRONIC PLUS ........................... 332
Driving Assistance package ...........360
HOLD function ............................... 342
Lane Keeping Assist ......................362
Night View Assist Plus ...................357
Parking Guidance ........................... 350
PARKTRONIC ................................. 347
Rear view camera .......................... 354
Driving tips
Automatic transmission .................313
Brakes ........................................... 327
Break-in period .............................. 302
DISTRONIC PLUS ........................... 340
Downhill gradient ........................... 327
Drinking and driving .......................326
Driving abroad ............................... 276
Driving in winter ............................. 330
Driving on flooded roads ................329
Driving on wet roads ......................329
Exhaust check ............................... 327
Fuel ................................................ 326
General .......................................... 326
Hydroplaning ................................. 329
Icy road surfaces ........................... 330
Limited braking efficiency on
salted roads ................................... 328
Pedals ............................................ 326
Snow chains .................................. 493
Symmetrical low beam ..................276
Wet road surface ........................... 327
DVD
Changer ......................................... 220
Copy protection ............................. 229
Fast forward/fast rewind ...............225
Handling ........................................ 189
Inserting ........................................ 220
Inserting/loading (Rear Seat
Entertainment System) ..................251
Notes on discs ............................... 22910Index

Selecting a category/playlist .........236
Supported variants ........................233
J
Jack Storage location ............................ 472
Using ............................................. 474
Jump starting (engine) ...................... 481
K
Key see SmartKey
KEYLESS-GO
Convenience closing feature ............94
Locking ............................................ 79
Start/Stop button .......................... 303
Starting the engine ........................305
Unlocking ......................................... 79
Key positions
KEYLESS-GO .................................. 303
SmartKey ....................................... 303
Kickdown
Driving tips .................................... 313
Manual drive program ....................316
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 .................385
Display message ............................ 411
Function/information ....................362
Lap time (RACETIMER) ...................... 380
LATCH-type (ISOFIX) child seat
anchors ................................................ 65
Letter bar see Character bar
License plate lamp (display
message) ............................................ 402
Lighting see Lights
Lights
Automatic headlamp mode ............277
Cornering light function .................280
Display message ............................ 401
Driving abroad ............................... 276
Fog lamps ...................................... 278
Hazard warning lamps ...................279
High beam flasher .......................... 279
High-beam headlamps ...................279
Light switch ................................... 276
Low-beam headlamps ....................277
Parking lamps ................................ 276
Rear fog lamp ................................ 278
Switching Adaptive Highbeam
Assist on/off ................................. 386
Switching the daytime running
lamps on/off (on-board
computer) ...................................... 385
Switching the daytime running
lamps on/off (switch) ....................277
Turn signals ................................... 279
see Changing bulbs
see Interior lighting
Light sensor (display message) ....... 403
LIM indicator lamp Cruise control ................................ 331
DISTRONIC PLUS ........................... 335
Loading guidelines ............................ 432
Locator lighting setting (COMAND) . 264
Locking see Central locking
Locking (doors)
Automatic ........................................ 86
Emergency locking ........................... 88
From inside (central locking
button) ............................................. 86
Locking centrally
see Central locking
Locking verification signal (on-
board computer) ............................... 386
Logic 7 ®
(Harman Kardon ®
surround sound system) see 3D sound (Harman Kardon ®
surround sound system) 14Index

Low-beam headlampsDisplay message ............................ 401
Setting for driving abroad
(symmetrical) ................................. 276
Switching on/off ........................... 277
Lubricant additives
see Additives
Lumbar support
Adjusting ....................................... 108
Lumbar support (COMAND) .............. 269
M
M+S tires ............................................ 492
Maintenance see ASSYST PLUS service interval
display
Malfunction message
see Display messages
Malfunctions relevant to safety
Reporting ......................................... 31
Map (navigation)
Adjusting the scale ........................182
Arrival time/distance to the
destination ..................................... 185
City model ..................................... 186
Display ........................................... 184
Geo-coordinate display ..................186
Heading ......................................... 184
Information in the display ..............185
Map settings .................................. 182
Moving ........................................... 183
North orientation ........................... 184
Notes ............................................. 182
Point of interest symbols ...............184
Road display .................................. 185
Saving the crosshair position .........183
Setting to the vehicle destination ..183
Topographical map ........................186
Map display (also see navigation)
Traffic reports ................................ 174
Massage function (PULSE) ............... 272
Matte finish (cleaning
instructions) ...................................... 465
mbrace Automatic retrieval of vehicle data
(service due date) ..........................449
Call priority .................................... 447
Display message ............................ 396
Downloading destinations
(COMAND) ..................................... 447
Emergency call .............................. 444
Important safety notes ..................443
Locating a stolen vehicle ...............450
MB info call button ........................446
Remote vehicle locking ..................449
Roadside Assistance button ..........445
Search & Send ............................... 448
Self-test ......................................... 444
System .......................................... 443
Vehicle remote unlocking ..............449
Mechanical key
Function/notes ................................ 81
Unlocking the driver's door ..............87
Media Interface
Active partition .............................. 238
Alphabetical track selection ..........237
Connecting an external audio
source ............................................ 234
Connection options .......................233
iPod ®
............................................. 233
Mode ............................................. 233
Notes on USB devices ...................238
Playback options ........................... 238
Selecting categories ......................236
Selecting folders ............................ 236
Selecting music files ......................236
Selecting playlists ..........................236
Switching to ................................... 234
USB mass storage device ..............233
Media list
Audio mode (CD, DVD, MP3) .........224
Video DVD ..................................... 242
Memory card (audio) ......................... 379
Memory function ............................... 113
Menu item Selecting ........................................ 126
Message memory (on-board
computer) .......................................... 388
Messages see Display messages
Microphone, switching on/off ......... 201Index15

Servicesee ASSYST PLUS service interval
display
Service interval display
Displaying service messages .........462
Hiding service messages ...............462
Notes ............................................. 462
Service messages ..........................462
Service menu (on-board computer) . 385
Service products Brake fluid ..................................... 528
Capacities ...................................... 524
Coolant (engine) ............................ 529
DEF special additives .....................527
Engine oil ....................................... 527
Fuel ................................................ 525
Important safety notes ..................522
Refrigerant (air-conditioning
system) .......................................... 528
Washer fluid ................................... 529
Setting a station (radio)
Via manual frequency entry ...........212
Settings
Display ........................................... 143
Menu overview .............................. 121
On-board computer .......................385
Picture (COMAND) .........................240
Picture (Rear Seat Entertainment
System) ......................................... 249
Sound settings ............................... 135
System settings ............................. 143
Setting the language
COMAND ....................................... 149
Rear Seat Entertainment System ...258
Setting the night design ................... 143
Setting the text reader speed .......... 145
Setting the vehicle level ................... 345
Setting the volume Telephone calls .............................. 134
Video AUX ..................................... 246
Side impact air bag ............................. 48
Side marker lamp (display
message) ............................................ 403
Side windows Convenience closing feature ............94
Convenience opening feature ..........93
Important safety information ...........92
Opening/closing .............................. 93Problem (malfunction) .....................95
Resetting ......................................... 95
Sliding sunroof
Important safety notes ....................95
Opening/closing .............................. 96
Problem (malfunction) ...................100
Resetting ......................................... 97
see Panorama roof with power
tilt/sliding panel
SmartKey
Changing the battery .......................82
Changing the programming .............81
Checking the battery .......................82
Convenience closing feature ............94
Convenience opening feature ..........93
Display message ............................ 419
Door central locking/unlocking .......78
Important safety notes ....................78
Loss ................................................. 84
Mechanical key ................................ 81
Positions (ignition lock) .................303
Problem (malfunction) .....................84
Starting the engine ........................305
SMS message
see Text message
Snow chains ...................................... 493
Socket Glove box ....................................... 442
Sockets
Points to observe before use .........441
Rear compartment .........................442
Trunk ............................................. 442
Sound menu ....................................... 135
Sounds see Sound settings
Sound settings
Balance and fader ..........................135
Calling up the sound menu ............135
Rear Seat Entertainment System ...248
Surround sound ............................. 136
Treble and bass ............................. 135
Spare wheel
Storage location ............................ 472
see Emergency spare wheel
Specialist workshop ............................ 31
Speech control see Voice Control System Index21

Door control panel
Front
FunctionPage:Opens the door86;%& Unlocks/locks
the vehicle
86
=Adjusts the seat electrically104?r 45=
Memory function
113
w Adjusts the front-
passenger seat from the
driver’s seat
105
Ac Seat heating108s Seat ventilation109B7Zª\
Adjusts and folds the
exterior mirrors in/out
electrically
111
FunctionPageCW Opens/closes the
side windows
92
t Opens/closes the
roller sunblinds in the rear
side windows
93
Do Opens the trunk lid90p Vehicles with trunk lid
remote closing feature:
opens/closes the trunk lid
90
En Override feature for
the controls in the rear
compartment
67
40Door control panelAt a glance

XEngage belt tongue ; in buckle =.
Seat-belt adjustment: if necessary, the
driver's and front-passenger seat belts
automatically adjust to the upper body
( Y page 60).XIf necessary, adjust the seat belt to the
appropriate height ( Y page 60).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 64).
For more information about releasing the seat
belt with release button ?, see "Releasing
seat belts" ( Y page 60).
Seat belt adjustment
The seat-belt adjustment function adjusts the
driver's and front-passenger seat belt to the
upper body of the occupants.
The belt strap is tightened slightly when:
R you engage the belt tongue in the belt
buckle and you then turn the SmartKey to
position 2 in the ignition lock.
R the SmartKey is in position 2 in the ignition
lock and you then engage the belt tongue
in the buckle.
The seat-belt adjustment will apply a
retraction force if any slack is detected
between the occupant and the seat belt. Do
not hold on to the seat belt tightly while it is
adjusting. You can switch the seat-belt
adjustment on and off in the on-board
computer ( Y page 386).
The seat-belt adjustment is an integral part of
the PRE-SAFE ®
convenience function. More
information about PRE-SAFE ®
can be found
in the "PRE-SAFE ®
(preventative occupant
protection)" section ( Y page 55).
Belt height adjustment
You can adjust the seat belt height on the
driver's seat and the front-passenger seat.
Adjust the height so that the upper part of the
seat belt is routed across the center of your
shoulder.
XTo raise: slide the belt sash guide upwards.
The belt sash guide engages in various
positions.XTo lower: press and hold belt sash guide
release :.XSlide the belt sash guide downwards.XRelease belt sash guide release : and
make sure that the belt sash guide has
engaged.
The seat belts for the outer seats in the rear
are adjusted automatically.
Releasing seat belts
XPress release button ?(Y page 59) and
guide belt tongue ; back towards belt
sash guide :.
!
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.
60Occupant safetySafety

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.
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 420).
Emergency Tensioning Devices, belt
force limiters
The front seat belts and the outer seat belts
in the rear 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 44).
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 outside 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
Occupant safety61SafetyZ

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.
Unsecured or improperly positioned cargo
increases a child's risk of injury in the event
of
R strong braking maneuvers
R sudden changes of direction
R an accident
Special seat belt retractor
All seat belts except the driver's seat belt are
equipped with a special seat belt retractor.
When activated, the special seat belt
retractor ensures the seat belt will not
slacken once the child restraint system has
been secured.
Installing a child restraint system:
XAlways comply with the manufacturer's
installation instructions.XPull the seat belt smoothly from the inertia
reel.XEngage the seat belt tongue in the belt
buckle.
Activating the special seat belt retractor:
XPull the seat belt out fully and let the inertia
reel retract it again.
While the seat belt is retracting, you should
hear a ratcheting sound. The special seat
belt retractor is enabled.XPush down on the child restraint system to
take up any slack.
Removing a child restraint system/
deactivating the special seat belt retractor:
XAlways comply with the manufacturer's
installation instructions.XPress the seat belt release button and
guide the belt tongue to the belt outlet.
The special seat belt retractor is
deactivated.GWARNING
Never release the seat belt buckle while the
vehicle is in motion, since the special seat belt
retractor will be deactivated.
64Children in the vehicleSafety

with ISOFIX and the rear seat. It helps reduce
the risk of injury even further.
The Top Tether anchorage points are located
in the rear compartment behind the head
restraints.XVehicles with electrically adjustable rear
seats: move the rear seat backrests to an
upright position ( Y page 104).XRemove respective covering cap : of the
Top Tether anchorage.XPlace covering cap : in a suitable place
(e.g. in the glove box).XMove the head restraint upwards.XRoute Top Tether belt ? under the head
restraint between the two head restraint
bars.XHook Top Tether hook = of Top Tether
belt ? into Top Tether anchorage ;.Ensure that:
R Top Tether hook = is hooked into Top
Tether anchorage ; as shown.
R Top Tether belt ? is not twisted.
R Top Tether belt ? can move freely
between the rear seat backrest and the
head restraint.XInstall the LATCH-type (ISOFIX) child
restraint system with Top Tether. Comply
with the manufacturer's installation
instructions when doing so. Make sure that
Top Tether belt ? is tight.
The child restraint system with Top Tether
belt ? has been removed:
XSlide covering cap : onto Top Tether
anchorage ;.GWARNING
Vehicles with rear power seats:
Never change the rear seat position after
installing the child restraint. This could
R damage the child restraint
R introduce undesirable slack or tension into
the seat belt
R loosen the child restraint
R misposition the child restraint
All of the above will lessen the
effectiveness of the child restraint and thus
increase the chance or severity of injury in
an accident.
Child-proof locks
Important safety notes
GWARNING
Activate the child-proof locks for the rear
doors and the override switch for the rear
windows when children are traveling in the
vehicle.
66Children in the vehicleSafety