Page 89 of 521

88 Safety and SecurityOccupant safetyChild seat anchors - LATCH type
This vehicle is equipped with two LATCH
(Lower A
nchors and T
ethers for CH
ildren)
type anchors (at each of the outer rear
seats) for the installation of a “LATCH”
child seat with the matching mounting fit-
tings.
The anchors are located behind an uphol-
stery blend.
1Indicates the position of the anchors
2Anchors
Lift up upholstery blend to access the
anchors.
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 (
page 78).
Install child seat according to the man-
ufacturer’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 over 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.
Page 90 of 521

89 Safety and Security
Occupant safety
Blocking of rear door window operation
1Override switch
2Indicator lamp
Press override switch1.
Indicator lamp2 comes on. The rear
door windows can no longer be operat-
ed using the switches located in the
rear doors.
For more information on power windows,
see the “Controls in detail” section
(
page 231).
Damaged or impact damaged child seats or
child seat mounting fittings must be re-
placed.
Do not leave children unattended in the
vehicle, even if the children are secured in a
child restraint system.
!Operation of the rear door windows
with the switches located on the door
control panel of the driver’s door is still
possible.
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 or SmartKey with KEYLESS-GO*
from the starter switch, take it with you, and
lock the vehicle. Do not leave children unat-
tended in the vehicle, or with access to an
unlocked vehicle. Unsupervised use of vehi-
cle equipment can cause an accident
and/or serious personal injury.
Page 106 of 521
105 Controls in detail
Locking and unlocking
Seats
Memory function
Lighting
Instrument cluster
Control system
Automatic transmission
Good visibility
Dual-zone automatic climate control (USA only)
4-zone automatic climate control*
Power windows
Power tilt/sliding sunroof*
Driving systems
Loading
Useful features
Page 130 of 521

129 Controls in detailSeats
Seats
For more information on seat adjustment,
see the “Getting started” section
(page 41).
Front seat active head restraints
You cannot remove the active head re-
straint on the driver’s and passenger’s
seats.For removal of the active head restraints
we recommend that you contact an autho-
rized Mercedes-Benz Center.
For information on head restraint adjust-
ment, see “Seats” (
page 42).
For information on active head restraints,
see “Active head restraints” (
page 76).
Rear seat head restraints
Folding head restraints back
The rear seat head restraints can be folded
backward for increased visibility.
Warning!
G
For your protection, drive only with properly
positioned head restraints.
Adjust head restraint so that the center of
the head restraint supports the back of the
head at eye level. This will reduce the poten-
tial for injury to the head and neck in the
event of an accident or similar situation.
Do not drive the vehicle without the seat
head restraints. Head restraints are intend-
ed to help reduce injuries during an acci-
dent.
iAdjust the head restraint in such a way
that it is as close to the head as possi-
ble.
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 131 of 521
130 Controls in detailSeatsFolding head restraints back with switch
in the center console
1Head restraint release switch
Switch on the ignition (
page 36).
Press the symbol-side on switch1 to
release the head restraints.
The head restraints will fold backward.Folding head restraints back manually
(rear outer seats only)
1Release button
Push release button1 and fold the
head restraints backward.Placing head restraints upright
Pull the head restraint forward until it
locks into position.!Make sure the head restraints engage
when placing them upright. Otherwise
their protective function cannot be as-
sured.
Page 132 of 521
131 Controls in detailSeats
Head restraint height
(rear outer seats only)
1Release button
Raising:
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 out.Lowering:
To lower the head restraint, push
release button1 and push down on
the head restraint.Head restraint tilt
(rear outer seats only)
Two different head restraint angle
positions are available.
1Release button
Press the release button1 and tilt the
head restraint to the desired position.
Warning!
G
For your protection, drive only with properly
positioned head restraints.
Adjust head restraint so that 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.
Do not drive the vehicle without the seat
head restraints. Head restraints are
intended to help reduce injuries during an
accident.
Page 133 of 521

132 Controls in detailSeatsRemoving and installing rear seat head
restraints
1Release button
Removing rear seat head restraints
Fold back head restraint (
page 129).
Pull head restraint to its highest
position.
Push release button1 and pull out
head restraint.Installing rear seat head restraints
Insert head restraint and push it down
until it engages.
Push button1 and adjust head
restraint to desired position.
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 intend-
ed to help reduce injuries during an acci-
dent.
Do not interchange head restraints from
front and rear seat.
!When installing the head restraints,
make sure that:
The proper head restraint for each
seat is installed. The bars of the
head restraint designed for the mid-
dle rear seat are of even length and
shorter than those designed for use
on the outer rear seats.
The head restraints engage fully.
Page 134 of 521

133 Controls in detailSeats
Lumbar support
The curvature of the driver’s seat can be
adjusted to help enhance lower back sup-
port and seating comfort.
1Adjustment lever
Move adjustment lever1 in direction
of the arrows until you have reached a
comfortable seating position.Drive - Dynamic seat* with multicon-
tour features
The Drive - Dynamic seat automatically ad-
justs the lateral support provided by the
backrest to your driving style.
The Drive - Dynamic seat electronically
controls the air pressure in the air cham-
bers of the backrest side bolsters. This
function improves driving comfort and
pleasure.
In addition, the Drive-Dynamic seat has a
movable seat cushion and inflatable air
cushions built into the backrest to provide
additional lumbar and side support.
The seat cushion movement, backrest
cushion height and curvature can be con-
tinuously varied with switches on the right
side of the seat on the driver side, or the
left side of the seat on the passenger side
after turning the SmartKey in the starter
switch to position2 or pressing the KEY-
LESS-GO* start/stop button twice.1Backrest center
2Backrest bottom
3Seat cushion depth
4Activate drive dynamic function
5Backrest side bolsters
6Massage function
Switch on the ignition (
page 36).