Page 77 of 441

76 Safety and Security
Occupant safety
death should the air bag be triggered. Al-
ways sit nearly upright, properly use the
seat belts and use an appropriately sized in-
fant or toddler restraint or booster seat rec-
ommended for the size and weight of the
child.
Children can be killed or seriously injured by
an inflating air bag. Note the following
important information when circumstances
require you to place a child in the front pas-
senger seat:
Your vehicle is equipped with air bag
technology designed to turn off the front
passenger front air bag in your vehicle
when the OCS senses the weight of a
typical 12-month-old child or less along
with the weight of a standard
appropriate child restraint on the front
passenger seat.
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 in
a collision which could occur under
some circumstances, even with the
air bag technology installed in your vehi-
cle. The only means to completely elim-
inate 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
restraint on the front passenger seat
because circumstances require you to
do so, make sure that the
56indicator lamp is illuminated,
indicating that the front passenger front
air bag is deactivated. Should the
56indicator lamp not illuminate
or go out while the restraint is installed,
please check installation. Periodically
check the 56indicator lamp
while driving to make sure the
56indicator lamp is illuminated.
If the 56indicator lamp goes out
or remains out,
do not transport a child on the front pas-
senger seat until the system has been
repaired. A child in a rear-facing child re-
straint 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
secure 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
front air bag may or may not be activat-
ed (
page 65).
Page 78 of 441

77 Safety and Security
Occupant safety
Installation of infant and child restraint
systems
This vehicle is equipped with tether
anchorages for a top tether strap at each
of the rear seating positions.
1Cover of top anchorage ring
Make sure the rear backrest is locked
in its upright position (
page 235).
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 from 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
children in a child restraint system may use
vehicle equipment and may cause an acci-
dent and/or serious personal injury.
Page 79 of 441

78 Safety and Security
Occupant safety
Remove cover1 from anchorage
ring3.
Guide tether strap between head
restraint and top of seat back.
Head restraint must be installed and
positioned such that the top tether
strap can pass freely between the head
restraint and top of seat back.
Make sure the tether strap is not
twisted.2Hook
3Anchorage ring
Securely fasten hook2, which is part
of the tether strap, to anchorage
ring3.Once the top tether anchorage hook is
attached, the child restraint itself can be
secured. Secure the child restraint and
tighten the top tether strap according to
the child restraint manufacturer’s instruc-
tions.
Reinstall cover1 after removing the
tether strap.
Warning!G
Always lock backrest in its upright position
when rear seat bench is occupied by pas-
sengers, or the extended cargo area is not in
use. Check for secure locking by pushing
and pulling on the backrest.
iFor safety, make sure the hook2 has
attached to the anchorage ring3 beyond the
safety catch, as illustrated.
Page 80 of 441

79 Safety and Security
Occupant safety
Child seat anchors – LATCH-type
This vehicle is equipped with two LATCH-
(L
ower Anchors and Tethers for CHildren)
type anchors (at each of the outer rear
seats) for the installation of a LATCH-type
child seat with the matching mounting
fittings.LATCH-type anchors
The LATCH-type anchors are located be-
tween the seat cushion and the backrest.
1Anchors
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.
Position shoulder belt across chest and
shoulder, 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.
Install child seat according to manufactur-
er’s instructions.
The child seat must be firmly attached to the
right and left side anchors1.
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 anchor fittings must be replaced.
Do not leave children unattended in the
vehicle, even if the children are secured in a
child restraint system.
iWith a child seat installed in the left rear
seat, the seat belt for the center seat occupied
by a passenger must operate freely. Guide seat
belt between its seat cushion mount and back-
rest mount along outside of right side child seat
anchor.
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.
Page 81 of 441

80 Safety and Security
Occupant safety
Blocking of rear door window operation
You can block the rear door window
operation (for instance when you have
children riding in the rear passenger
compartment).
The override switch is located on the door
control panel of the driver’s door.
1Deactivating override switch
2Activating override switch
3Override switchActivating override switch
Slide override switch3 to the right in
direction2.
The rear door windows can no longer
be operated using the respective
switch located in the rear doors.
Deactivating override switch
Slide override switch3 to the left in
direction1.
The rear door windows can be operated
again using the respective switch
located in the rear doors.
For more information, see “Power win-
dows” (
page 221).
Warning!G
Activate the override switch when children
are riding in the back seats of the vehicle.
The children may otherwise injure them-
selves, e.g. by becoming trapped in the win-
dow opening.
When leaving the vehicle, always remove the
SmartKey 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. A child’s
unsupervised access to a vehicle could
result in an accident and/or serious
personal injury.
iOperation of the rear door windows with the
switches located on the door control panel of the
driver’s door is still possible.
Page 102 of 441

101 Controls in detail
Seats
Seats
For information on seat adjustment, see
“Adjusting” (
page 34).
Front seat active head restraintsYou cannot remove the active head re-
straints on the driver’s and front passen-
ger’s seat.
For removal of the active head restraints
we recommend that you contact an autho-
rized Mercedes-Benz Center.
For information on head restraint
adjustment, see “Seats” (
page 34).
For information on active head restraints,
see “Active head restraint” (
page 73).
Rear seat head restraints
Warning!G
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 po-
tential for injury to the head and neck in the
event of an accident or similar situation.
iAdjust the head restraint in such a way that
it is as close to the head as possible.
Warning!G
For safety reasons, always drive with the
rear head restraints in the upright position
when the rear seats are occupied.
Keep the area around head restraints clear
of articles (e.g. clothing) to not obstruct the
folding operation of the head restraints.
Page 103 of 441

102 Controls in detail
Seats
Head restraint height (rear outer seats)
1Release buttonRaising
Manually adjust the height of the head
restraint by pulling it upward.
If the head restraint is fully retracted,
push release button1 and pull the
head restraint up.
Lowering
To lower the head restraint, push
release button1 and push down on
the head restraint.Folding head restraints back with
release button
The rear seat head restraints can be folded
backward for increased visibility.
1Release button
Push release button1.
The head restraint will fold backward.
Warning!G
For your protection, drive only with properly
positioned head restraints.
Adjust head restraint so that the head re-
straint 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 ac-
cident or similar situation.
Do not drive the vehicle without the seat
head restraints. Head restraints are
intended to help reduce injuries during an
accident.
iAdjust the head restraint in such a way that
it is as close to the head as possible.
iYou can also fold the rear outer seat head
restraints back using the switch in the center
console.
Page 104 of 441
103 Controls in detail
Seats
Folding head restraints back with
switch in the center console
1Switch for rear seat head restraints
Start the engine (page 46).
Press switch1.
The rear seat head restraints will fold
backward.Placing head restraints upright
Pull the head restraint forward until it
locks into position.Head restraint tilt (rear outer seats)
Two different head restraint angle
positions are available:
Press the release button (page 102)
and tilt the head restraint to the
desired position.
Warning!G
Make sure the head restraints engage when
placing them upright. Otherwise their
protective function cannot be assured.
iAdjust the head restraint in such a way that
it is as close to the head as possible.