77 Safety and Security
Occupant safety
Children can be killed or seriously injured by
an inflating air bag. Note the following im-
portant information when circumstances re-
quire you to place a child in the front
passenger seat:
Your vehicle is equipped with air bag
technology designed to turn off the front
passenger front air bag in your vehicle
when the system senses the weight of a
typical 12-month-old child or less along
with the weight of a standard appropri-
ate child restraint on the front passen-
ger seat.
A child in a rear-facing child restraint on
the front passenger seat will be serious-
ly injured or even killed if the front pas-
senger front air bag inflates in a collision
which could occur under some circum-
stances, even with the air bag technolo-
gy installed in your vehicle. The only
means to completely eliminate this risk
is to never place a child in a rear-facing
child restraint in the front seat. We
therefore strongly recommend that you
always place a child in a rear-facing
child restraint in the back seat.
If you must install a rear-facing child re-
straint on the front passenger seat be-
cause circumstances require you to do
so, make sure that the 75 in-
dicator lamp is illuminated, indicating
that the front passenger air bag is deac-
tivated. Should the light not illuminate
or go out while the restraint is installed,
please check installation. Periodically
check the indicator lamp while driving to
make sure the lamp is illuminated. If the
75 indicator lamp goes out or
remains out, do not transport a child on
the front passenger seat until the sys-
tem 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.
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 se-
cure child restraint with the vehicle's
seat belt according to the child seat
manufacturer's instructions. For
children larger than the typical
12-month-old child, the front passenger
air bag may or may not be activated
(page 76).
79 Safety and Security
Occupant safety
Self-test Occupant Classification Sys-
tem
After turning the SmartKey in the starter
switch to position1 or2 or pressing the
KEYLESS-GO* start/stop button once or
twice, the 75 indicator lamp1
located in the center console illuminates. If
an adult occupant is properly sitting on the
front passenger seat and the system sens-
es the occupant as being an adult, the
75 indicator lamp will illuminate
and go out after approximately six sec-
onds.
If the seat is not occupied and the system
senses the front passenger seat as being
empty, the 75 indicator lamp will
illuminate and not go out. For more information, see the “Practical
hints” section (
page 374).
Do not place objects under and / or
around the front passenger seat.
Do not hang anything from or attach any
items to the seats.
Do not stuff objects such as books be-
tween the middle console and the front
passenger seat.
Do not move the front passenger seat
backwards against stiff objects.
Sit properly belted in a nearly upright
position with your back against the seat
backrest.
Do not lean on the armrests or lift your-
self from the seat by using the handle
over the door as this may cause the OCS
to be unable to correctly approximate
the occupant weight category.
Only have the seat repaired or replaced
by an authorized Mercedes-Benz Cen-
ter.
Read and observe all warnings in this
chapter.
Warning!
G
If the indicator lamp should not illuminate,
the system is not functioning. You must see
an authorized Mercedes-Benz Center before
seating any child on the front passenger
seat.Warning!
G
Never place anything between seat cushion
and child seat (e.g. pillow), since it reduces
the effectiveness of the Occupant Classifi-
cation System. The bottom of the child seat
must make full contact with the passenger
seat cushion. An incorrectly mounted child
seat could cause injuries to the child in case
of an accident, instead of increasing protec-
tion for the child.
Follow the manufacturer’s instructions for
installation of child seats.
82 Safety and SecurityOccupant safety1Indicates the position of the anchors
2Anchors
Install child seat according to the
manufacturer’s instructions.
!Make sure the seat belt for the center
seat can operate freely with a child
seat installed.iNon-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 manufacturer’s
instructions.
Warning!
G
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 from 41 lbs until they reach a
height where a lap/shoulder belt fits proper-
ly without a booster.
Install child seat according to manufactur-
er’s instructions.
T h e c h i l d s e a t m u s t b e f i r m l y a t t a c h e d i n t h e
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.
130 Controls in detailMemory function
You can store up to three different settings
for each SmartKey or SmartKey with
KEYLESS-GO*.
The following settings are stored when us-
ing the buttons on the driver’s door:
Driver’s seat, backrest, head restraint
position and settings for multicontour
seat
Steering wheel position
Exterior rear view mirror positions
These SmartKey-dependent memory set-
tings can be deactivated if desired. For in-
formation on SmartKey-dependent
memory settings, see “Setting
SmartKey-dependency” (
page 168).
The following settings are not
SmartKey-dependent. They are stored
when using the buttons on the front pas-
senger door:
Front passenger seat, backrest, head
restraint position and settings for mul-
ticontour seat
!Prior to operating the vehicle, the driv-
er should check and adjust the seat
height, seat position fore and aft, and
seat backrest angle if necessary, to
ensure adequate control, reach and
comfort. The head restraint should also
be adjusted for proper height. See also
the section on air bags (
page 61) for
more information on proper seat posi-
tioning.
In addition, adjust the steering wheel to
ensure adequate control, reach, opera-
tion and comfort. Both the interior and
exterior rear view mirrors should be ad-
justed for adequate rear vision.
Fasten seat belts. Infants and small
children should be seated in a properly
secured restraint system that complies
with U.S. Federal Motor Vehicle Safety
Standards 213 and 225 and Canadian
Motor Vehicle Safety Standards 213
and 210.2.
Warning!
G
Do not activate the memory function while
driving. Activating the memory function
while driving could cause the driver to lose
control of the vehicle.
223 Controls in detail
Power tilt /sliding sunroof*
Power tilt /sliding sunroof*
Opening and closing the power tilt/sliding sunroof
The tilt/sliding sunroof can be opened and
closed electrically. The switch for the
tilt/sliding sunroof is on the overhead con-
trol panel.Sunroof switch1Push back to slide sunroof open
2Push forward to slide sunroof closed
3Push up to raise sunroof at rear
4Pull down to lower sunroof at rearWith the sunroof closed or tilted open, a
screen can be slid into the sunroof opening
to guard against sun rays. When sliding the
sunroof open, the screen will also retract.
Warning!
G
When closing the tilt/sliding sunroof, make
sure there is no danger of anyone being
harmed by the closing procedure.
The opening/closing procedure of the
tilt/sliding sunroof can be immediately halt-
ed by releasing the switch or, if the switch
was moved past the resistance point and re-
leased, by moving the switch in any direc-
tion.
The tilt/sliding sunroof is made out of glass.
In the event of an accident, the glass may
shatter. This may result in an opening in the
roof.
In a vehicle rollover, occupants not wearing
their seat belts or not wearing them properly
may be thrown out of the opening. Such an
opening also presents a potential for injury
for occupants wearing their seat belts prop-
erly as entire body parts or portions of them
may protrude from the passenger compart-
ment.
228 Controls in detailPanorama roof with power tilt/sliding panel*
Switch on the ignition (
page 33).
In a vehicle rollover, occupants not wearing
their seat belts or not wearing them properly
may be thrown out of the opening. Such an
opening also presents a potential for injury
for occupants wearing their seat belts prop-
erly as entire body parts or portions of them
may protrude from the passenger compart-
ment.
When leaving the vehicle, always remove the
SmartKey or the SmartKey with
KEYLESS-GO* from the starter switch, take
it with you, and lock the vehicle. Do not
leave children unattended in the vehicle, or
with access to an unlocked vehicle. Unsu-
pervised use of vehicle equipment can
cause an accident and/or serious personal
injury.
!To avoid damaging the seals, do not
transport any objects with sharp edges
which can stick out of the tilt/sliding
panel.
Do not open the tilt/sliding panel if
there is snow or ice on the roof, as this
could result in malfunctions.
The tilt/sliding panel can be opened or
closed manually should an electrical
malfunction occur (
page 414).
iYou can also open or close the tilt/slid-
ing panel using the SmartKey (summer
opening/convenience closing feature)
(page 220) or (
page 221).
You can close and reopen the tilt/slid-
ing panel using the air recirculation
switchO in the control panel of the
climate control (
page 194) or
(
page 206).
258 Controls in detailLoading
Pull release handle1.
The seat cushion automatically springs
upward slightly.
1Seat cushion
2Seat backrest
Grip the back of seat cushion1 and
fold forward.
Push the rear seat head restraints all
the way in.
Pull the handle in the trunk.
The seat backrest is released and the
head restraints fold back.
Fold the seat backrest forward.Returning seat backrest to original po-
sition
1Seat cushion
2Seat backrest
Swing seat backrest2 to the rear until
it engages.
Swing seat cushion1 to the rear and
press the center front of the cushion
until it audibly engages.
iIf tall persons have occupied the driv-
er’s and front passenger seats, it may
be necessary to move these seats for-
ward slightly in order to fold the rear
seat backrests forward.
iI f t h e r e a r c e n t e r s e a t i s t o b e o cc u p i e d
while driving, it may be necessary to
fold the seat belt buckle up again.
!Make sure the head restraints fit all the
way into the seat cushion pockets. This
will prevent the backrests from being
damaged during loading.
328 OperationTires and wheelsGeneral:
Depending on the design standards used,
the tire size molded into the sidewall may
have no letter or a letter preceding the tire
size designation.
No letter preceding the size designation
(as illustrated above): Passenger car tire
based on European design standards.
Letter “P” preceding the size designation:
Passenger car tire based on U.S. design
standards.
Letter “LT” preceding the size designation:
Light Truck tire based on U.S. design
standards.
Letter “T” preceding the size designation:
Temporary spare tires which are high
pressure compact spares designed for
temporary emergency use only. Tire width
The tire width1 (
page 327) indicates
the nominal tire width in mm.
Aspect ratio
The aspect ratio2 (page 327) is the
dimensional relationship between tire
section height and section width and is
expressed in percentage. The aspect ratio
is arrived at by dividing section height by
section width.
Tire code
The tire code3 (
page 327) indicates
the tire construction type. The “R” stands
for radial tire type. Letter “D” means diag-
onal or bias ply construction; letter “B”
means belted-bias ply construction.
At the tire manufacturer's option, any tire
with a speed capability above 149 mph
(240 km/h) can include a “ZR” in the size
designation (for example: 245/40 ZR 18).
For additional information, see “Tire speed
rating” (
page 329).Rim diameter
The rim diameter4 (
page 327) is the
diameter of the bead seat, not the
diameter of the rim edge. Rim diameter is
indicated in inches (in).
Tire load rating
The tire load rating5 (page 327) is a
numerical code associated with the
maximum load a tire can support.
For example, a load rating of 91 corre-
sponds to a maximum load of 1 356 lbs
(615 kg) the tire is designed to support.
See also “Maximum tire load”
(
page 333) where the maximum load as-
sociated with the load index is indicated in
kilograms and lbs.