64 Safety and SecurityOccupant safety
Installation of infant and child restraint
systems
This vehicle is equipped with tether an-
chorages for a top tether strap at each of
the rear seating positions.
1Cover of top anchorage ring
Bring the rear power seat backrest* to
a fully upright position (
page 320).
Remove cover1 from anchorage ring.
Store cover1 in a convenient place
(e.g. glove box).
Guide tether strap between head re-
straint and top of seat back.
Warning!
G
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. Posi-
tion shoulder belt across chest and shoul-
der, not face or neck. A booster seat may be
necessary to achieve proper belt positioning
for children over 41 lbs 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.
Do not leave children unattended in the
vehicle, even if the children are secured in a
child restraint system. Unsupervised chil-
dren in a child restraint system may use
vehicle equipment and may cause an acci-
dent and/or serious personal injury.
66 Safety and SecurityOccupant safety
Bring the rear power seat backrest* to
its fully upright position (
page 320).
Fold upholstery blend3 upward.
Turn installation device4 to a vertical
position so that upholstery blend3
does not fold down.
Install child seat according to the man-
ufacturer’s instructions.
A rigid connection is established be-
tween the child seat and the body of
the vehicle.
Do not adjust rear power seat*/bench*
position after installing child restraint.
Warning!
G
Vehicles with adjustable rear seats/bench*:
Never adjust the rear seat position after in-
stalling the child restraint. Adjusting the rear
seat position after installing the child re-
straint could damage the child restraint
and/or introduce undesirable slack or ten-
sion into the seat belt and loosen or mispo-
sition the child restraint, lessening the
effectiveness of the child restraint and thus
i n c r e a s i n g t h e c h a n c e o r s e v e r i t y o f i n j u r y i n
an accident.i
The child seat must be firmly attached in the
right and left side anchor fittings.
Make sure the seat belt for the center seat can
operate freely with a child seat installed.
Non-LATCH type child seats may also be used
and can be installed using the vehicle’s seat belt
system. Install child seat according to the manu-
facturer’s instructions.
Warning!
G
Children too big for a toddler restraint must
ride in seats using regular seat belts. Posi-
tion. Position shoulder belt across chest and
shoulder, not face or neck. A booster seat
may be necessary to achieve proper belt po-
sitioning for children over 41 lbs until they
reach a height where a lap/shoulder belt fits
properly without a booster.
Install child seat according to manufactur-
er’s instructions.
The child seat must be firmly attached in
right and left side anchors2.
An incorrectly mounted child seat may come
loose during an accident which could result
in serious injury or death to the child.
Damaged or impact damaged child seats or
child seat mounting fittings must be re-
placed.
Do not leave children unattended in the ve-
hicle, even if the children are secured in a
child restraint system.
69 Safety and Security
Driving safety systems
Driving safety systems
This section contains information about
Adaptive Brake Lights as well as the follow-
ing driving safety systems:
ABS (A
ntilock B
rake S
ystem)
Adaptive Brake
BAS (B
rake A
ssist S
ystem)
BAS Plus* (B
rake A
ssist S
ystem Plus*)
EBP (E
lectronic B
rake P
roportioning)
ESP
® (E
lectronic S
tability P
rogram)
ETS (E
lectronic T
raction S
ystem)
ABS
The Antilock Brake System (ABS) regulates
the brake pressure so that the wheels do
not lock during braking. This allows you to
maintain the ability to steer your vehicle.The ABS is functional above a speed of ap-
proximately 5 mph (8 km/h) independent
of road surface conditions.
On slippery road surfaces, the ABS will re-
spond even to light brake pressure.
The - indicator lamp in the instrument
cluster (
page 28) comes on when you
switch on the ignition (
page 315). It goes
out when the engine is running.
Braking
At the instant one of the wheels is about to
lock up, a slight pulsation can be felt in the
brake pedal, indicating that the ABS is in
the regulating mode.
Keep firm and steady pressure on the
brake pedal while experiencing the pul-
sation.
Continuous, steady brake pedal pressure
yields the advantages provided by the ABS,
namely braking power and the ability to
steer the vehicle.
Warning!
G
The following factors increase the risk of ac-
cidents:
Excessive speed, especially in turns
Wet and slippery road surfaces
Following another vehicle too closely
The ABS, BAS, BAS Plus*, EBP, ESP
® and
ETS cannot reduce this risk.
Always adjust your driving style to the pre-
vailing road and weather conditions.i
In winter operation, the maximum effective-
ness of the ABS, Adaptive Brake, BAS,
BAS Plus*, EBP, ESP
® and ETS is only achieved
with winter tires (
page 530), or snow chains
as required.
Warning!
G
Do not pump the brake pedal. Use firm,
steady brake pedal pressure instead. Pump-
ing the brake pedal defeats the purpose of
the ABS and significantly reduces braking
effectiveness.
73 Safety and Security
Driving safety systems
For more information, see “Practical hints”
section (
page 549) and (
page 582).
ETS
The Electronic Traction System is a compo-
nent of ESP
®.
The Electronic Traction System (ETS) im-
proves the vehicle’s ability to utilize avail-
able traction, especially under slippery road conditions. The brakes are applied to
the spinning wheel and power is trans-
ferred to the wheel(s) with traction.
The ESP
® warning lampvin the instru-
ment cluster starts to flash at any vehicle
speed, as soon as a tire loses traction and
the wheel begins to spin.
When you switch off the ESP
®, the ETS is
still enabled.Switching off the ESP
®
To improve the vehicle’s traction, turn off
the ESP
® in driving situations where it
would be advantageous to have the drive
wheels spin and thus cut into surfaces for
better grip such as:
when driving with snow chains
in deep snow
in sand or gravel
i
The ESP
® will only function properly if you
use wheels of the recommended tire size
(
page 655).
!
Because of the ESP’s
® automatic operation,
the engine and ignition must be shut off
(SmartKey in starter switch position0 or1 or
KEYLESS-GO start/stop button* in position0
or1) when
the parking brake is being tested on a brake
test dynamometer
the vehicle is being towed with the
front/rear axle raised
Active braking action through the ESP
® may oth-
erwise seriously damage the brake system.
Warning!
G
If you are driving too fast, the Electronic
Traction System cannot reduce the risk of
an accident.
The ETS cannot prevent the natural laws of
physics from acting on the vehicle.i
If the yellow ESP
® warning lampv
comes on while driving, the ETS is being
switched off temporarily to prevent overheating
of the drive wheel brakes. In addition, the mes-
sage “ESP Currently unavailable See Oper. Man-
ual” appears in the multifunction display.
Warning!
G
The ESP
® should not be switched off during
normal driving other than in the circum-
stances described below. Disabling of the
system will reduce vehicle stability in stan-
dard driving maneuvers.
!
Turn the ESP
® on immediately if the afore-
mentioned circumstances do not apply anymore.
i
DISTRONIC Plus* cannot be activated when
the ESP
® has been switched off.
75 Safety and Security
Anti-theft systems
Anti-theft systems
Immobilizer
The immobilizer prevents unauthorized
persons from starting your vehicle.
Activating
With the SmartKey: Remove the
SmartKey from the starter switch.
With the KEYLESS-GO*: Turn off the
engine (
page 317) and open the driv-
er’s door.
Deactivating
Switch on the ignition (
page 315).
Anti-theft alarm system
Once the alarm system has been armed, a
visual and audible alarm is triggered when
someone opens:
a door
the trunk
the hood
The alarm will stay on even if the activating
element (a door, for example) is immedi-
ately closed.
The alarm system will also be triggered
when
the vehicle is raised
the vehicle is opened with the
mechanical key
a door is opened from the inside
To cancel the alarm after it has been trig-
gered, see “Canceling the alarm”
(
page 76).1Indicator lamp
Arming: Lock your vehicle with the
SmartKey or KEYLESS-GO*.
The turn signal lamps flash three times
to indicate that the alarm system is ac-
tivated. The indicator lamp1 flashes
to indicate that the alarm system is
armed.
i
Starting the engine will also deactivate the
immobilizer.
In case the engine cannot be started (yet the ve-
hicle’s battery is charged), the system is not op-
erational. Contact an authorized Mercedes-Benz
Center or call 1-800-FOR-MERCedes (in the
USA), or 1-800-387-0100 (in Canada).
i
If the alarm stays on for more than
30 seconds, a call to the Response Center is ini-
tiated automatically by the Tele Aid system
(
page 462) provided Tele Aid service was sub-
scribed to and properly activated, and that nec-
essary mobile phone, power supply and GPS
coverage are available.
76 Safety and SecurityAnti-theft systems
Disarming: Unlock your vehicle with
the SmartKey or KEYLESS-GO*.
The turn signal lamps flash once to in-
dicate that the alarm system is dis-
armed.
Tow-away alarm
Once the tow-away alarm is armed, a visual
and audible alarm will be triggered when
someone attempts to raise the vehicle.
To cancel the alarm after it has been trig-
gered, see “Canceling the alarm”
(page 76).
Arming: Lock your vehicle with the
SmartKey or KEYLESS-GO*.
The tow-away alarm is automatically
armed after about 30 seconds.
Disarming: Unlock your vehicle with
the SmartKey or KEYLESS-GO*.
To prevent triggering the tow-away alarm
feature, switch off the tow-away alarm be-
fore towing the vehicle, or when parking on
a surface subject to movement, such as a
ferry or auto train. To switch off the tow-away alarm, see
“Switching on/of the tow-away alarm”
(
page 228).
Canceling the alarm
To cancel the alarm, do one of the follow-
ing:
Insert the SmartKey in the starter
switch.
Press the Œ or ‹ button on the
SmartKey.
In vehicles with KEYLESS-GO*:
Grasp an outside door handle.
The SmartKey with KEYLESS-GO must
be within 3 ft. (1 m) of the vehicle.
Press the KEYLESS-GO start/stop but-
ton (
page 317).
The SmartKey with KEYLESS-GO must
be inside the vehicle.
i
If the turn signal lamps does not flash three
times one of the following elements may not be
properly closed:
a door
the trunk
Close the respective element and lock the vehi-
cle again.
i
The alarm system will rearm automatically
again after approximately 40 seconds if no door
was opened.
i
If the alarm stays on for more than
30 seconds, a call to the Response Center is ini-
tiated automatically by the Tele Aid system
(
page 462) provided Tele Aid service was sub-
scribed to and properly activated and that neces-
sary mobile phone, power supply and GPS
coverage are available.
i
When you unlock your vehicle, the tow-away
protection disarms automatically.
The tow-away alarm remains disarmed until you
lock your vehicle again.
98 Control systemsCOMAND satellite radio* (USA only)Submenu overviewIntroduction to Satellite radio
Sirius Satellite Radio provides 100 chan-
nels, so called streams, of digital-quality
radio, among others music, sports, news,
and entertainment free of commercials.
Sirius Satellite Radio uses a fleet of high-power satellites to broadcast 24
hours per day, coast-to-coast, in the con-
tiguous US.
This diverse, satellite-delivered program-
ming is available for a monthly subscrip-
tion fee.
For more information and service availabil-
ity call the Sirius Service Center
(
page 103), or go to
www.siriusradio.com.
i
The components and operating principles of
COMAND can be found on (
page 79).
Sat Radio
Presets
Info
Category
Sound
Channel List
Station presets
Show program info
Select category
Treble
Save Channel
Bass
Channel Entry
Balance/Fader
Service
3D Sound
i
A subscription to Sirius satellite radio ser-
vice provider is required for the satellite radio op-
eration described in this chapter. Contact an
authorized Mercedes-Benz Center for details
and availability for your vehicle.
i
Satellite radio service may be unavailable or
interrupted from time to time for a variety of rea-
sons, such as environmental or topographic con-
ditions and other things we can’t control. Service
might also not be available in certain places
(e.g., in tunnels, parking garages, or within or
next to buildings) or near other technologies. In
such situations, the satellite radio’s main menu
shows the “Acquiring signal...” screen. At this
point, the radio’s functions are restricted to
manual channel number entry (
page 101) and
service info display (
page 103).
141 Control systems
COMAND navigation (introduction)
Updating the map software
You can update the map software yourself
using a DVD.
Notes about handling DVDs
Only hold discs by the edge.
Handle discs carefully to prevent read
problems.
Avoid getting scratches, fingerprints
and dust on discs.
Use a commercially-available cleaning
cloth to clean discs. Do not wipe them
with a circular motion, but only in
straight lines from the center out-
wards.
Place discs back in their boxes after
use.
Protect discs from heat and direct sun-
light.
Updating process
The updating process has the following
phases:
Loading a DVD into the DVD changer
(page 142)
Updating process (
page 142)
i
The updating process can take between 10
and 60 minutes, depending on the size of the
map software. If the radio was switched on be-
fore you started the updating process, you can
still adjust the volume. You can also use
COMAND to operate the automatic air condition-
ing and to cancel the process. Other functions
are not operational.
If possible, carry out the update when the vehicle
is stationary.
i
If you carry out the update with the engine
switched off and the vehicle battery has insuffi-
cient power, COMAND may automatically switch
off during the process in order to protect the bat-
tery. If this occurs, restart the update with the
engine running period. Similarly, if the SmartKey
position is unintentionally switched to 0, restart
the update.Warning!
G
Never leave the engine running in an en-
closed space. The exhaust gases contain
carbon monoxide. Inhaling exhaust gases
constitutes a health hazard and could lead
to loss of consciousness or even death.