2011 MERCEDES-BENZ S-Class Button

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
Child-proof locks for the rear doors
GWarning
Observe "Important safety notes"
(Y page 60).
GWarning
Children could open a rear door from inside
the vehicle. This could result in serious
injuries or an accident. Therefore, when
children ride in the rear always secure the rear
doors with the child-proof locks.
You can secure each door individually with
the child-proof locks on the rear doors. A door
secured with a child-proof lock cannot be
opened from inside the vehicle. When the
vehicle is unlocked, the door can be opened
from the outside.
XTo activate: press the child-proof lock
lever up in the direction of arrow :.
XMake sure that the child-proof locks are
working properly.
XTo deactivate: press the child-proof lock
lever down in the direction of arrow ;.
Override feature for the rear side
windows
GWarning
Observe "Important safety notes"
(Y page 60).
GWarning
When children ride on the vehicle's rear seats,
activate the override switch. Otherwise, the
children could be injured, e.g. by trapping
themselves in the rear side window.
For the rear compartment, you can disable
operation of:
Rthe rear side windows
Rthe cigarette lighter in the rear
Radjustment of the front-passenger seat
from the rear compartment
Rthe sunblinds:
-in the roof
-of the rear window
-of the rear side windows
XTo activate/deactivate: press button :.
If indicator lamp ; is lit, the rear-
compartment functions are disabled. 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.
Children in the vehicle65SafetyZ

Panic alarmX To activate: press and hold !
button : for about 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 the part 15 of the
FCC regulations. Operation is subject to
the following two conditions:
1. This device may not cause interference,
and
2. This device must withstand 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.
i Canada only:
This device complies with the RSS-210
regulations of Industry Canada. Operation
is subject to the following two conditions:
1. This device may not cause interference,
and
2. This device must withstand 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.
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 Adaptive brake lamps
R ESP ®
(E lectronic Stability Program)
R EBD ( Electronic Brake force Distribution)
R ADAPTIVE BRAKE
R PRE-SAFE ®
Brake (vehicles with
DISTRONIC PLUS)
Important safety notes
GWarning
The following factors increase the risk of
accidents:
R Excessive speed, especially in turns
R Wet and slippery road surfaces
R Following another vehicle too closely
The driving safety systems described in this
section cannot reduce these risks or prevent
the natural laws of physics from acting on the
vehicle. They cannot increase braking or
steering efficiency beyond that afforded by
the condition of the vehicle brakes and tires
or the traction afforded.
Only a safe, attentive, and skillful driver can
prevent accidents.
The capabilities of a vehicle equipped with the
driving safety systems described in this
66Driving safety systemsSafety

Rdisturbance from other radar sources
R strong radar reflection such as in parking
garages
BAS PLUS uses radar signals that are not
reflected well by narrow objects and
absorptive materials. For this reason BAS
PLUS will not react to persons, animals, and
approaching traffic or cross-traffic.
BAS PLUS may not detect narrow vehicles
driving in front of you, such as motorcycles
and vehicles driving offset from your vehicle
center.
Following a collision or accident-related
damage to the front end of the vehicle, have
the configuration and operation of the radar
sensors checked at an authorized Mercedes-
Benz Center.
If BAS PLUS is not available due to a
malfunction in the radar sensor system, the
brake system remains available with full
brake boosting effect and BAS.
Adaptive brake lights
i Adaptive brake lamps are only available in
the USA and only on the S 600 and S65
AMG.
If you brake sharply from a speed of more
than 30 mph (50 km/h) or if braking is
assisted by BAS or BAS PLUS, the brake
lamps flash rapidly. In this way, traffic
traveling behind you is warned in an even
more noticeable manner.
If you brake from a speed of more than
40 mph (70 km/h) to a standstill, the hazard
warning lamps are switched on automatically
when the vehicle is stationary. If the brakes
are applied again, the brake lamps light up
continuously. The hazard warning lamps
switch off automatically if you drive faster
than 6 mph (10 km/h) again. You can also
switch off the hazard warning lamps using the
hazard warning lamp button ( Y page 276).
ESP ®
(Electronic Stability Program)
Important safety notesGWarning
Observe "Important safety notes"
( Y page 66).
If ESP ®
detects that the vehicle is deviating
from the direction desired by the driver, one
or more wheels are braked to stabilize the
vehicle. If necessary, the engine output is also
modified to keep the vehicle on the desired
course within physical limits. ESP ®
assists
the driver when pulling away on wet or
slippery roads. ESP ®
can also stabilize the
vehicle during braking.
If ESP ®
intervenes, the ÷ warning lamp
flashes in the instrument cluster.
GWarning
Under no circumstances should you
deactivate ESP ®
when the ÷ ESP®
warning lamp in the instrument cluster
flashes. Proceed as follows:
R when driving off, apply as little throttle as
possible.
R while driving, ease up on the accelerator
pedal.
R adapt your speed to suit the prevailing road
and weather conditions.
failure to observe these guidelines could
cause the vehicle to skid. ESP ®
cannot
prevent accidents resulting from excessive
speed.
! Vehicles without 4MATIC: switch the
ignition off when:
R the electric parking brake is being tested
using a brake dynamometer.
R the vehicle is being towed with the front/
rear axle raised.
Application of the brakes by ESP ®
may
otherwise destroy the brake system.
Driving safety systems69SafetyZ

iIf the alarm stays on for more than 30
seconds, the emergency call system
mbrace (USA only) or TELEAID (Canada
only) initiates a call to the Customer
Assistance Center automatically. The
emergency call system initiates the call
provided that:
Ryou have subscribed to the mbrace/
TELEAID service.
Rthe mbrace/TELEAID service has been
activated properly.
Rthe 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 30
seconds.
XTo deactivate: unlock the vehicle using 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 key
must be outside the vehicle.
The alarm is switched off.
or
XPress the Start/Stop button on the
dashboard. The key must be inside the
vehicle.
The alarm is switched off.
74Anti-theft systemsSafety

Unapproved modifications to this device
may lead to withdrawal of permission to
operate it.
i Canada only:
This device complies with Industry
Canada's RSS–210 regulations. Operation
is subject to the following conditions:
1. This device must not cause any harmful
interference, and
2. This device must be able to
accommodate interference that is
received, including interference which
could cause unwanted functions.
Unapproved modifications to this device
may lead to withdrawal of permission to
operate it.
Locking and unlocking centrally
The SmartKey centrally locks/unlocks:
R the doors
R the trunk lid
R the fuel filler flap
:& To lock the vehicle;F To unlock the trunk lid=% To unlock 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.
You can also set an audible signal to confirm
that the vehicle has been locked or unlocked.
The audible signal can be activated and
deactivated using the on-board computer
( Y page 378).XTo unlock centrally: press the %
button.
If you do not open a door or the trunk lid within
approximately 40 seconds of unlocking the
vehicle:
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 regulations. Operation is subject to
the following conditions:
1. This device must not cause any harmful
interference, and
2. This device must be able to
accommodate interference that is
received, including interference which
could cause unwanted functions.
Unapproved modifications to this device
may lead to withdrawal of permission to
operate it.
i Canada only:
This device complies with Industry
Canada's RSS–210 regulations. Operation
is subject to the following conditions:
1. This device must not cause any harmful
interference, and
2. This device must be able to
accommodate interference that is
received, including interference which
could cause unwanted functions.
Unapproved modifications to this device
may lead to withdrawal of permission to
operate it.
SmartKey77Opening and closingZ

Important information about using
KEYLESS-GO
RYou can use the KEYLESS-GO key as a
conventional SmartKey.
RYou can combine KEYLESS-GO functions
with those of a conventional SmartKey, e.g.
you can open the vehicle with KEYLESS-GO
and close it with the & button.
RAlways carry your KEYLESS-GO key on your
person.
RNever store the KEYLESS-GO key together
with:
-electronic devices, such as a mobile
phone or other SmartKey
-metal objects, such as coins or metal foil
Doing so may impair the function of
KEYLESS-GO.
RTo open or close the vehicle, the KEYLESS-
GO key should not be more than 3 ft (1 m)
from the door or trunk.
RIf the vehicle is parked for more than
72 hours, the KEYLESS-GO function is
deactivated. Pull an outer door handle and
switch on the ignition to reactivate the
KEYLESS-GO function.
RIf the KEYLESS-GO key is removed from the
vehicle, the system may not be able to
recognize the SmartKey anymore. The
vehicle can then no longer be locked or
started with KEYLESS-GO.
RIf the KEYLESS-GO key has been removed
from the vehicle, e.g. when another vehicle
occupant with a KEYLESS-GO key leaves
the vehicle:
-when the Start/Stop button is pressed,
or when trying to lock the vehicle using
the locking button on the outside 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.
Look for the KEYLESS-GO key and place
it somewhere else in the vehicle. Place
the KEYLESS-GO key on the front-
passenger seat, for example, or in your
shirt pocket.
RIf you have switched on the engine with the
Start/Stop button, you can switch it off
again by:
-pressing the Start/Stop button
-inserting the KEYLESS-GO key into the
ignition lock while the vehicle is at a
standstill and the automatic
transmission is in park position P.
RYou may inadvertently unlock the vehicle if
the KEYLESS-GO key is less than 3 ft (1 m)
from the vehicle and:
-an exterior door handle is hit by a jet of
water, or
-you clean an exterior door handle
RPlease note that any vehicle occupant can
start the engine when there is a KEYLESS-
GO key in the vehicle.
Scenario 1: There is a KEYLESS-GO key in
the vehicle and a second one outside the
vehicle. If you leave the KEYLESS-GO key
in the vehicle when you leave and lock the
vehicle, no message appears in the
multifunction display.
Scenario 2: There is a KEYLESS-GO key in
the vehicle, but none outside the vehicle. If
you get out of the vehicle and attempt to
lock it, the Key Detected In Vehicle
message appears in the multifunction
display. The vehicle is not then locked.
When starting the engine and whilst driving,
KEYLESS-GO also checks whether a valid
SmartKey is in the vehicle by periodically
establishing radio contact.
78SmartKeyOpening and closing

X To unlock the vehicle: pull the door
handle.XTo lock the vehicle: touch sensor
surface :.
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 80) flashes twice.
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 sensor
surface : on one of the door handles.
Restoring the factory settings
XPress 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 73).
There are several ways to turn off the alarm:
XPress the % or & button on the
SmartKey.
or
XInsert the SmartKey into the ignition lock.
or
XPress 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
XPush release catch : in the direction of
the arrow and at the same time, remove
mechanical key ; from the SmartKey.
SmartKey battery
Important safety notes
It is advisable to have batteries replaced at a
qualified specialist workshop, e.g. at an
authorized Mercedes-Benz Center.
SmartKey79Opening and closingZ

GWarning
Batteries contain toxic and caustic
substances. For this reason, keep batteries
out of the reach of children.
If a battery has been swallowed, seek medical
help immediately.
GWarning
The SmartKey batteries contain perchlorate
material, which may require special handling
and regard for the environment. Observe
government disposal guidelines. California
residents, see www.dtsc.ca.gov/
HazardousWaste/Perchlorate/
index.cfm .
Checking the battery
XPress the & or % button.
The SmartKey battery is working properly if
battery charge indicator lamp : lights up
briefly.
If battery charge indicator lamp : does not
light up briefly during the test, the SmartKey
battery is discharged.
XReplace the SmartKey battery
( Y page 80).
i
You can obtain a SmartKey battery at any
authorized Mercedes-Benz Center.
i If the SmartKey battery is checked within
signal range of the vehicle, pressing the
& or % button results in the vehicle
being locked or unlocked respectively.
Changing the battery
You require a CR 2025 3 V cell battery.
XTake the mechanical key out of the
SmartKey ( Y page 79).XPress mechanical key ; into the opening
in the SmartKey in the direction of the
arrow until battery tray cover : opens. Do
not hold the cover closed while doing so.XRemove the cover of the battery tray.XRepeatedly tap the SmartKey against your
palm until battery = falls out.XInsert the new battery with the positive
pole facing upwards. Use a lint-free cloth to
do so.XInsert the front tabs of the battery tray's
cover first and then press to close it.XCheck the function of all SmartKey buttons
on the vehicle.80SmartKeyOpening and closing