
GWarning
If the 45  indicator lamp illuminates
when an adult or someone larger than a small
individual is in the front-passenger seat, have
the front passenger reposition himself or
herself in the seat until the  45
indicator lamp goes out.
In the event of a collision, the air bag control
unit will not allow front-passenger front air
bag deployment when the OCS has classified
the front-passenger seat occupant as
weighing as much as or less than a typical 12-
month-old child in a standard child restraint
or if the front-passenger seat is classified as
being empty.
When the OCS senses that the front-
passenger seat occupant is classified as
being up to or less than the weight of a typical
12-month-old child in a standard child
restraint, the  45 indicator lamp will
illuminate when the engine is started and
remain illuminated, indicating that the front-
passenger front air bag is deactivated.
When the OCS senses that the front-
passenger seat is classified as being empty,
the  45  indicator lamp will illuminate
when the engine is started and remain
illuminated, indicating that the front-
passenger front air bag is deactivated.
When the OCS senses that the front-
passenger seat occupant is classified as
being heavier than the weight of a typical 12-
month-old child seated in a standard child
restraint or as being a small individual (such
as a young teenager or a small adult), the
45  indicator lamp will illuminate for
approximately 6 seconds when the engine is
started and then, depending on occupant
weight sensor readings from the front-
passenger seat, remain illuminated or go out.
With the  45  indicator lamp
illuminated, the front-passenger front air bag
is deactivated. With the  45 indicator
lamp out, the front-passenger front air bag is
activated.
When the OCS senses that the front-
passenger seat occupant is classified as an
adult or someone larger than a small
individual, the  45 indicator lamp will
illuminate for approximately 6 seconds when
the engine is started and then go out,
indicating that the front-passenger front air
bag is activated.
If the  45  indicator lamp is illuminated,
the front-passenger front air bag is
deactivated and will not be deployed.
If the  45  indicator lamp is not
illuminated, the front-passenger front air bag
is activated and will be deployed:
R in the event of certain frontal impacts
R if impact exceeds a preset deployment
threshold
R independently of the side impact air bags
If the front-passenger front air bag is
deployed, the rate of inflation will be
influenced by:
R the rate of relevant vehicle deceleration as
assessed by the air bag control unit
R the front passenger's weight category as
identified by OCS
For further information, see the section
regarding air bag display messages
( Y  page 179).GWarning
According to accident statistics, children are
safer when properly restrained on the rear
seats than on the front-passenger seat. Thus,
we strongly recommend that children be
placed in the rear seats whenever possible.
Regardless of seating position, children 12
years old and under must be seated and
properly secured in an appropriate infant
restraint, toddler restraint, or booster seat
recommended for the size and weight of the
child.
The infant or child restraint must be properly
secured with the vehicle's seat belt, the seat
belt and Top Tether strap, or lower anchors
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pelvis air bags may be prevented from
deploying.
Contact an authorized Mercedes-Benz Center
for availability.
If the NECK-PRO head restraints have been
triggered in an accident, you must reset the
NECK-PRO head restraints on the driver's and
front-passenger seat (Y page 50).
Otherwise, the additional protection will not
be available in the event of another rear-end
collision. You can recognize that NECK-PRO
head restraints have been triggered by the
fact that they have moved forwards and can
no longer be adjusted.
GWarning!
For your protection, drive only with properly
positioned head restraints.
Adjust the head restraint so that it is as close
to the head as possible and the center of the
head restraint supports the back of the head
at eye level. This will reduce the potential for
injury to the head and neck in the event of an
accident or similar situation.
Resetting triggered NECK-PRO head
restraints
GWarning
For safety reasons, have the NECK-PRO head
restraints checked at an authorized
Mercedes-Benz Center after a rear-end
collision.
GWarning
When pushing back the NECK-PRO head
restraint cushion, make sure your fingers do
not become caught between the head
restraint cushion and the cover. Failure to
observe this could result in injuries.
iResetting the NECK-PRO head restraints
requires a lot of strength. If you have
difficulty resetting the NECK-PRO head
restraints, have this work carried out at a
qualified specialist workshop, e.g. an
authorized Mercedes-Benz Center.
XPress the base of the NECK-PRO head
restraint cushion back in the direction of
arrow ; as far as it will go.
XPush the NECK-PRO head restraint cushion
down into the guide in the direction of
arrow = as far as it will go.
XFirmly fold the NECK-PRO head restraint
cushion back in the direction of arrow :
until it engages.
XRepeat this procedure for the second
NECK-PRO head restraint.
Seat belts
Important safety notes
The use of seat belts and infant and child
restraint systems is required by law in all 50
states, the District of Columbia, the U.S.
territories and all Canadian provinces.
Even where this is not the case, all vehicle
occupants should have their seat belts
fastened when the vehicle is in motion.
iSee "Children in the vehicle"
(Y page 55) for more information on
infants and children traveling with you in
the vehicle and restraints for infants and
children.
GWarning!
Always fasten your seat belt before driving off.
Always make sure all of your passengers are
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properly restrained. You and your passengers
should always wear seat belts.
Failure to wear and properly fasten and
position your seat belt greatly increases your
risk of injuries and their likely severity in an
accident.
If you are ever in an accident, your injuries can
be considerably more severe without your
seat belt properly buckled. Without your seat
belt buckled, you are much more likely to hit
the interior of the vehicle or be ejected from
it. You can be seriously injured or killed.
In the same crash, the possibility of injury or
death is lessened if you are properly wearing
your seat belt. The air bags can only protect
as intended if the occupants are properly
wearing their seat belts.GWarning
Never ride in a moving vehicle with the seat
backrest in an excessively reclined position as
this can be dangerous. You could slide under
the seat belt in a collision. If you slide under
it, the seat belt would apply force at the
abdomen or neck. That could cause serious
or even fatal injuries. The seat backrest and
seat belt provide the best restraint when the
wearer is in a position that is as upright as
possible and the seat belt is properly
positioned on the body.
GWarning
Never let more people ride in the vehicle than
there are seat belts available. Make sure
everyone riding in the vehicle is correctly
restrained with a separate seat belt. Never
use a seat belt for more than one person at a
time.
GWarning
Damaged seat belts or seat belts that have
been subjected to stress in an accident must
be replaced and their anchoring points must
also be checked.
Only use seat belts which have been approved
by Mercedes-Benz.
Do not make any modifications to the seat
belts. This can lead to unintended activation
of the ETDs or to their failure to activate when
necessary.
Do not bleach or dye seat belts as this may
severely weaken them. In a crash they may
not be able to provide adequate protection.
Have all work carried out only by qualified
technicians. Contact an authorized
Mercedes-Benz Center.
Correct use of the seat beltGWarning
USE SEAT BELTS PROPERLY
R Seat belts can only work when used
properly. Never wear seat belts in any other
way than as described in this section, as
that could result in serious injuries in the
event of an accident.
R Each occupant should wear their seat belt
at all times, because seat belts help reduce
the likelihood of and potential severity of
injuries in accidents, including rollovers.
The integrated restraint system includes
SRS (driver front air bag, driver's side knee
bag, front-passenger front air bag, side
impact air bags, pelvis air bags, window
curtain air bags for the side windows),
Emergency Tensioning Devices, seat belt
force limiters, and front seat knee bolsters.
The system is designed to enhance the
protection offered to properly belted
occupants in certain frontal (front air bags,
driver's side knee bag and ETDs) and side
(side impact air bags, window curtain air
bags, and ETDs) impacts which exceed
preset deployment thresholds and in
certain rollovers (window curtain air bags
and ETDs).
R Never wear the shoulder belt under your
arm, across your neck or off your shoulder.
In a frontal crash, your body would move
too far forward. That would increase the
chance of head and neck injuries. The seat
belt would also apply too much force to the
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Using KEYLESS-GO
The SmartKey with KEYLESS-GO must be
outside the vehicle but no more than 3 ft (1 m)
away from a door.
XClose all the doors.XTouch the sensor surface on door
handle : until the side windows and the
panorama roof with power tilt/sliding
panel are fully closed.
iMake sure you only touch sensor
surface :.
XMake sure that all the side windows and the
panorama roof with power tilt/sliding
panel are closed.
On vehicles with a panorama roof with power
tilt/sliding panel:
XTouch sensor surface : on the door
handle again until the roller sunblinds of the
panorama roof with power tilt/sliding
panel close.
XTo interrupt convenience closing:
release sensor surface : on the door
handle.
Resetting the side windows
You must reset all the side windows if the side
window cannot be closed fully.
XClose all the doors.XTurn the key to position 2 in the ignition
lock.
XPull on the corresponding switch on the
door control panel until the side window is
completely closed (Y page 82).
XHold the switch for an additional second.
If the side window opens again slightly:
XPull the corresponding switch again
immediately and hold it for approximately
one second.
Problems with the side windows
Problem: a side window cannot be closed 
because objects are trapped between the 
side window and the door frame.
XRemove the objects.XClose the side window.
Problem: a side window cannot be closed 
because objects in the guide rail are 
preventing the window from being raised.
XRemove the objects.XClose the side window.
Problem: a side window cannot be closed, 
and you cannot see the cause.
GWarning!
Closing the side windows with increased force
or without the anti-entrapment feature could
lead to serious or even fatal injury. Make sure
that nobody can become trapped when
closing the side windows.
If a side window is obstructed during closing
and reopens again slightly:
XImmediately after the window blocks, pull
on the corresponding switch again until the
side window has closed.
The side window is closed with increased
force.
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GWarning
When opening the roller sunblinds, make sure
that nobody can be injured during the opening
procedure.
The roller sunblinds are equipped with the
express operation and anti-entrapment
features. If the roller sunblinds block during
the opening procedure, the anti-entrapment
feature stops the roller sunblinds and opens
them again slightly.
The opening procedure of the roller sunblinds
can be stopped immediately by releasing the
roof switch or by operating the roof switch in
any direction if the roof switch has been
pressed beyond the point of resistance and
has been released.
Opening and closing
Overhead control panel
:To open;To open=To closeXTurn the key to position  2 in the ignition
lock.XPush or pull the  3 switch in the
corresponding direction.
i If you press the  3 switch beyond the
point of resistance, an automatic opening/
closing process is started in the
corresponding direction. You can stop
automatic operation by pressing again.
Resetting the panorama roof with
power tilt/sliding panel and the roller
sunblinds 
Reset the panorama roof with power tilt/
sliding panel and the roller sunblinds if the
panorama roof with power tilt/sliding panel
or the roller sunblind do not open smoothly.
!  Do not open the panorama sliding sunroof
until it has been reset properly. Otherwise,
the panorama roof with power tilt/sliding
panel may lock in the open position.
If the panorama roof with power tilt/sliding
panel cannot be closed or adjusted,
contact a qualified specialist workshop,
e.g. a Mercedes-Benz Service Center.
XTurn the key to position  2 in the ignition
lock.XPress the  3 switch to the point of
resistance in the direction of arrow  ; and
hold it until the roller sunblinds are fully
open.XPress the  3 switch to the point of
resistance in the direction of arrow  ; and
hold it until the panorama roof with power
tilt/sliding panel has opened about 10 cm.XPull the  3 switch repeatedly to the point
of resistance in the direction of arrow  =
until the panorama roof with power tilt/
sliding panel is fully closed.XKeep the  3 switch pulled for an
additional second.XPull the  3 switch to the point of
resistance in the direction of arrow  = and
hold it until the roller sunblinds are fully
closed.XKeep the  3 switch pulled for an
additional second.XMake sure that the panorama roof with
power tilt/sliding panel can be opened fully
again ( Y page 86).XIf this is not the case, the previously
described steps must be repeated or you
should consult a qualified specialist
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Folding the exterior mirrors in or out
electrically 
This function is only available in vehicles for
Canada.
! Fold in the exterior mirrors when driving
the vehicle into an automatic car wash. The
mirrors could otherwise be damaged.
XMake sure that the key is in position 1 or
2 in the ignition lock.
XBriefly press button :.
Both exterior mirrors fold in or out.
iMake sure that the exterior mirrors are
always folded out fully while the vehicle is
in motion as they may otherwise vibrate.
iIf you are driving faster than
9 mph(15 km/h), you can no longer fold in
the exterior mirrors.
Resetting the exterior mirrors 
This function is only available in vehicles for
Canada.
If the battery has been disconnected or
completely discharged, the exterior mirrors
must be reset. The exterior mirrors will
otherwise not fold in when you select the
"Fold in mirrors when locking" function in the
on-board computer (Y page 174).
XMake sure that the key is in position 1 in
the ignition lock.
XBriefly press button :.Folding the exterior mirrors in or out
automatically 
This function is only available in vehicles for
Canada.
If the "Fold in mirrors when locking" function
is activated in the on-board computer
(Y page 174):
Rthe exterior mirrors fold in automatically as
soon as you lock the vehicle from the
outside.
Rthe exterior mirrors fold out again
automatically as soon as you unlock the
vehicle and then open the driver's or front-
passenger door.
iThe mirrors do not fold out if they have
been folded in manually.
Exterior mirror out of position 
If an exterior mirror has been pushed out of
position, proceed as follows:
X Vehicles without electrically folding 
exterior mirrors: move the exterior mirror
into the correct position manually.
XVehicles with electrically folding 
exterior mirrors (only vehicles for 
Canada):  press the mirror-folding button
(Y page 98) repeatedly until you hear the
mirror engage in position.
The mirror housing is engaged again and
you can adjust the exterior mirrors as usual
(Y page 97).
Automatic anti-glare mirrors
GWarning!
The auto-dimming function does not react if
incoming light is not aimed directly at sensors
in the interior rear view mirror.
The interior rear view mirror and the exterior
rear view mirror on the driver’s side do not
react, for example, when transporting cargo
which covers the rear window.
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Light hitting the mirror(s) at certain angles
(incident light) could blind you. As a result,
you may not be able to observe traffic
conditions and could cause an accident.
The rear-view mirror and the exterior mirror
on the driver's side automatically go into anti-
glare mode if the ignition is switched on and
incident light from headlamps strikes the
sensor in the rear-view mirror.
The mirrors do not go into anti-glare mode if
reverse gear is engaged or the interior lighting
is switched on.
Parking position for the exterior
mirror on the front-passenger side
Setting and storing the parking position
You can position the front-passenger side
exterior mirror in such a way that you can see
the rear wheel on that side as soon as you
engage reverse gear. You can store this
position.
XMake sure that the vehicle is stationary and
that the key is in position 2 in the ignition
lock.
XPress button ; for the exterior mirror on
the front-passenger side.
XEngage reverse gear.
The exterior mirror on the front-passenger
side moves to the preset parking position.
XUse adjustment button = to adjust the
exterior mirror to a position which allows
you to see the rear wheel and the curb.
The parking position is stored.
iIf you shift the transmission to another
position, the exterior mirror on the front-
passenger side returns to the driving
position.
iYou can also store the parking position
using memory button M ?.
XWith the key in position 2 in the
ignition lock and with the exterior
mirror on the front-passenger side
activated, use adjustment button = to
set the exterior mirror such that the
rear wheel and curb are visible.
XPress memory button M ? and one of
the arrows on adjustment button =
within three seconds.
The parking position is stored if the
exterior mirror does not move.
If the mirror moves out of position, repeat
the steps.
Calling up a stored parking position
setting
XWith the key in position 2 in the ignition
lock and the exterior mirror on the front-
passenger side activated, engage reverse
gear.
The exterior mirror on the front-passenger
side moves to the stored parking position.
The exterior mirror on the front-passenger
side moves back to its original position:
Ras soon as you exceed a speed of 6 mph
(10 km/h)
Rabout ten seconds after you have
disengaged reverse gear
Rif you press button : for the exterior
mirror on the driver's side
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Memory functions
Storing settings 
With the memory function, you can store up
to three different settings, e.g. for three
different people.
The following settings are stored as a single
memory preset:
Rposition of the seat, backrest and head
restraint
Rdriver's side: steering wheel position
Rdriver's side: position of the exterior
mirrors on the driver's and front-passenger
sides
GWarning!
The memory function can still be used when
the key has been removed. For this reason,
children should never be left unsupervised in
the vehicle. They could otherwise become
trapped when adjusting the seat or the
steering wheel.
GWarning!
Only use the memory function on the driver's
side when the vehicle is stationary. You could
otherwise be distracted from the traffic
conditions by the steering wheel and seat
moving of their own accord, and as a result
cause an accident.
XAdjust the seat (Y page 92).XOn the driver's side, adjust the steering
wheel (Y page 96) and the exterior mirrors
(Y page 97).
XPress memory button M and one of the
storage position buttons 1, 2 or 3 within
three seconds.
The settings are stored in the selected
preset position. A tone sounds when the
settings have been completed.
Calling up a stored setting
! If you want to move the seat from the fully
reclined position to a stored seat position,
first raise the backrest. The seat could
otherwise be damaged.
XPress and hold the relevant storage
position button 1, 2 or 3, until the seat,
steering wheel and exterior mirrors are in
the stored position.
iThe setting procedure is interrupted as
soon as you release the storage position
button.
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