2012 MERCEDES-BENZ S-Class key battery

BAS (Brake Assist System) ................. 70
Basic settings see Settings
BAS PLUS (Brake Assist System
PLUS) .................................................... 70
Bass, setting ...................................... 135
Battery (SmartKey) Checking .......................................... 82
Important safety notes ....................82
Replacing ......................................... 82
Battery (vehicle)
Charging ........................................ 480
Display message ............................ 406
Important safety notes ..................478
Jump starting ................................. 481
Belt
see Seat belts
Bird's-eye view (navigation) ............. 184
Blind see Roller sunblind
Blind Spot Assist
Activating/deactivating .................385
Notes/function .............................. 360
see Active Blind Spot Assist
BlueTEC (DEF) .................................... 527
Bluetooth ®
Activating/deactivating .................147
Authorizing a device (registering) ..148
Conditions (general) ......................147
Conditions (telephone) ..................195
Connecting another mobile phone . 197
Connecting devices .......................147
De-authorizing (de-registering) a
device ............................................ 149
External authorization (general) .....149
External authorization (telephone) . 197
General information .......................147
Introduction ................................... 193
Receiving vCards ........................... 204
Searching for devices ....................148
Settings ......................................... 147
Telephone basic menu ...................198
Telephony ...................................... 195
Telephony notes ............................ 193
Bluetooth ®
interface
Telephony ...................................... 193Brake Assist System
see BAS (Brake Assist System)
Brake fluid
Display message ............................ 396
Notes ............................................. 528
Brake fluid level ................................ 461
Brake lamps Display message ............................ 402
Brakes
ABS .................................................. 69
BAS .................................................. 70
BAS PLUS ........................................ 70
Brake fluid (notes) .........................528
Display message ............................ 389
Driving tips .................................... 327
High-performance brake system ....329
Important safety notes ..................327
Maintenance .................................. 328
Warning lamp ................................. 422
Breakdown
see Flat tire
see Towing away
Breakdown assistance
see Mercedes-Benz Contact
Brightness, setting (TV, video) ......... 240
Bulbs see Changing bulbs
C
California Important notice for retail
customers and lessees ....................29
Call
Accepting/ending/rejecting .......... 199
see Telephone
Calling up a malfunction
see Display messages
Calling voicemail ............................... 201
Call lists Displaying details ........................... 205
Introduction ................................... 209
Opening and selecting an entry .....209
Saving an entry in the address
book .............................................. 210
Capacities
see Technical data
6Index

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

Tow-startingEmergency engine starting ............485
Important safety notes ..................483
Track
Selecting (CD, DVD, MP3) .............. 224
Traffic Announcements (TA)
Switching off .................................. 134
Traffic jam function ........................... 171
Traffic jam message see Dynamic route guidance/TMC
Traffic reports
Real-time traffic report ..................177
Switching on/off ........................... 174
Transmission
see Automatic transmission
Transporting the vehicle .................. 485
Treble, adjusting (sound) .................. 135
Trim pieces (cleaning instructions) . 468
Trip computer (on-board
computer) .......................................... 376
Trip meter see Trip odometer
Trip odometer
Calling up ....................................... 376
Resetting (on-board computer) ......377
Trunk
Emergency release ....................91, 92
Important safety guidelines .............88
Limiting the opening angle ............. 265
Locking separately ...........................91
Opening/closing (automatically
from inside) ...................................... 90
Opening/closing (automatically
from outside) ................................... 90
Trunk lid
Display message ............................ 418
Opening/closing .............................. 88
Power closing feature ......................87
Trunk lid opening height
restriction .......................................... 265
Turn signals Display message ............................ 401
Switching on/off ........................... 279
TV
Automatic picture shutoff ..............240
Picture settings .............................. 240Type identification plate
see Vehicle identification plate
U
Unlocking Emergency unlocking .......................87
From inside the vehicle (central
unlocking button) ............................. 86
USB
see Media Interface
V
Vanity mirror (in sun visor) .............. 438
Vehicle Correct use ...................................... 31
Data acquisition ............................... 32
Display message ............................ 417
Equipment ....................................... 28
Individual settings ..........................385
Limited Warranty ............................. 32
Loading .......................................... 500
Locking (in an emergency) ...............88
Locking (SmartKey) .......................... 79
Lowering ........................................ 477
Maintenance .................................... 29
Parking for a long period ................ 325
Pulling away ................................... 305
Raising ........................................... 474
Reporting problems .........................31
Towing away .................................. 483
Transporting .................................. 485
Unlocking (in an emergency) ...........87
Unlocking (SmartKey) ......................79
Vehicle data ................................... 530
Vehicle battery
see Battery (vehicle)
Vehicle data ....................................... 530
see Technical data
Vehicle dimensions ........................... 530
Vehicle emergency locking ................ 88
Vehicle identification number see VIN
Vehicle identification plate .............. 521
Index25

XTo activate/deactivate: press button :.
If indicator lamp ; is lit, the rear-
compartment functions are deactivated.
The rear side windows can then only be
operated using the switches on the driver's
door. If indicator lamp ; is off, the
functions are enabled. The rear side
windows can be operated using the
switches in the rear compartment.
Panic alarm
X To activate: press ! button : for at
least one second.
An alarm sounds and the exterior lighting
flashes.XTo deactivate: press ! button :
again.
or
XInsert the SmartKey into the ignition lock.
or
XPress the KEYLESS-GO Start/Stop button.The KEYLESS-GO key must be in the
vehicle.
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:
This device complies with RSS-Gen 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.
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.
Driving safety systems
Driving safety systems overview
In this section, you will find information about
the following driving safety systems:
R ABS ( Anti-lock Braking System)
R BAS ( Brake Assist System)
R BAS PLUS ( Brake Assist System Plus*)
R ESP ®
(E lectronic Stability Program)
R EBD ( Electronic Brake force Distribution)
68Driving safety systemsSafety

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 31).
SmartKey
Important safety notes
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 unsupervised in the
vehicle, even if they are secured in a child
restraint system, and do not give them access
to an unlocked vehicle. A child's unsupervised
access to a vehicle could result in an accident
and/or serious personal injury. They could:
R injure themselves on vehicle parts
R be seriously or fatally injured by extreme
heat or cold
R injure themselves or have an accident with
vehicle equipment that may still be in
operation even after the SmartKey has
been removed from the ignition, such as the
seat adjustment, steering wheel
adjustment or memory function.
If children open a door, they could cause
severe or even fatal injury to other persons; if
they get out of the vehicle, they could injure
themselves when doing so or be seriously or
even fatally injured by any passing 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 a child could be burned on these
parts.GWARNING
If a key ring is too heavy or too large, the
weight acting on the key could cause it to turn
in the ignition lock or catch on the steering
wheel. This could cause the engine to be
switched off suddenly. You could lose control
of the vehicle and cause an accident. Do not
attach any heavy or large key rings to the key
that is inserted in the ignition.
General notes
If you cannot lock or unlock the vehicle with
the SmartKey, either the battery in the
SmartKey is discharged, the SmartKey is
faulty or the starter battery is discharged.
XCheck the battery in the SmartKey and
replace it if necessary ( Y page 82).XUnlock the driver's door using the
mechanical key ( Y page 87).XLock the vehicle ( Y page 88).XHave the starter battery and the battery
contacts checked at a qualified specialist
workshop.
If the SmartKey is faulty, contact Roadside
Assistance or a qualified specialist workshop.
SmartKey functions
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.
78SmartKeyOpening/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 COMAND
( Y page 264).
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 386).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:
SmartKey79Opening/closingZ

This device complies with RSS-210 of
Industry Canada. 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.
Important notes on the use of KEYLESS-
GO
R The KEYLESS-GO key can be used like a
conventional key.
R You can combine KEYLESS-GO functions
with those of a conventional key, e.g.
unlock with KEYLESS-GO and lock with the
& button.
R Always carry your KEYLESS-GO key on your
person.
R Do not keep the KEYLESS-GO key together
with:
- electronic devices, e.g. a mobile phone
or another key
- metallic objects, e.g. coins or metal foil.
This can affect the functionality of
KEYLESS-GO.
R When locking and unlocking using
KEYLESS-GO, the distance between the
SmartKey and the corresponding door
handle must not exceed 3 ft (1 m).
R If the vehicle is parked for more than
72 hours, the KEYLESS-GO function is
deactivated. Pull the outer door handle and
switch on the ignition to reactivate the
KEYLESS-GO function.
R If the KEYLESS-GO key is removed from the
vehicle, it is possible that the system may
not recognize the SmartKey. The vehicle
can then not be locked or started using
KEYLESS-GO.
R If the KEYLESS-GO key has been removed
from the vehicle, e.g. if a passenger leaves
the vehicle with a KEYLESS-GO key:
- if the start/stop button is pressed or if
an attempt is made to lock the vehicle
with the locking button on the outer door
handle, the Key Not Detected message
appears in the multifunction display
- when the engine is running, the red Key
Not Detected message appears in the
multifunction display as you pull away.
Find the KEYLESS-GO key and change its
position in the vehicle. Carry the
KEYLESS-GO key in your shirt pocket, for
example.
R If you have started the engine with the
Start/Stop button, you can switch it off
again by:
- pressing the Start/Stop button again
- inserting the KEYLESS-GO key into the
ignition lock if the vehicle is stationary
and the automatic transmission is in park
position P.
R You could unlock the vehicle by mistake if
the distance between the KEYLESS-GO key
and the vehicle is less than 3 ft (1 m) and:
- an exterior door handle is hit by a water
jet
or
- you clean an exterior door handle.
R Bear in mind that the engine can be started
by any of the vehicle occupants if there is
a KEYLESS-GO key in the vehicle.80SmartKeyOpening/closing

X To unlock the vehicle: pull the door
handle.XTo lock the vehicle: touch sensor
surface :.XConvenience closing feature: touch
recessed sensor surface ; for an
extended period ( Y page 94).
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 82) 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 : pull the door
handle on the driver's door.XTo unlock centrally: pull the door handle
on the front-passenger door or on the rear
doors.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 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 75).
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.
Removing the mechanical key
SmartKey81Opening/closingZ