
Activating the special seat belt retractor:
X
Pull the seat belt out fully and let the seat
belt retractor retract it again.
While the
seat belt is retracting, you should
hear a ratcheting sound. The special seat
belt retractor is activated.
X Push down on the child restraint system to
take up any slack.
Removing a child restraint system/
deactivating the special seat belt retractor:
X Always comply with the manufacturer's
installation instructions.
X Press the release button on the seat belt
buckle.
X Guide the seat belt tongue into the belt
outlet.
The special seat belt retractor is
deactivated. G
WARNING
Never release the seat belt buckle while the
vehicle is
in motion, since the special seat belt
retractor will be deactivated.
LATCH-type (ISOFIX) child seat anchors
in the rear G
WARNING
Observe "Important safety notes"
(Y page 47). G
WARNING
Children that are too large for a child restraint
must travel in seats using normal seat belts.
Position shoulder belt across the chest and
shoulder, not face or neck.
In order
to attain the correct seating position
for children weighing over 41 lb (18 kg), it may
be necessary to use a booster seat until they
reach a height where a normal lap/shoulder
seat belt lies properly across their bodies
without the need for a booster seat.
Install the child restraint system according to
the manufacturer's instructions. The child restraint system must be installed
firmly on both brackets.
An
incorrectly
installed child restraint system
can come loose in the event of an accident,
causing the child to be severely or fatally
injured.
Child restraint systems/child restraint
retaining brackets that are damaged or have
suffered damage due to an impact must be
replaced.
ISOFIX is a standardized securing system for
specially designed child restraint systems on
the rear seats. Securing rings for two LATCH-
type (ISOFIX) child restraint systems are
installed on the left and right of the rear seats.
Secure non-LATCH-type (ISOFIX) child
restraint systems using the vehicle's seat belt
system. Always install child restraint systems
according to the manufacturer's instructions. :
Securing rings
X Install the LATCH-type (ISOFIX) child
restraint system. Comply with the
manufacturer's instructions when
installing the LATCH-type (ISOFIX) child
restraint system.
X When a LATCH-type (ISOFIX) child restraint
system is installed, make sure that the
center seat
belt in the rear compartment is
fully functional and can move freely. 50
Children in the vehicle
Safety

Top Tether
G
WARNING
Observe "Important safety notes"
(Y page 47). G
WARNING
Always lock the rear seat backrests in their
upright position when the rear seats are
occupied by passengers. Lock the rear seat
backrests in their upright position before
installing the Top Tether straps or when the
cargo compartment is not in use. Make sure
that rear
seat backrests are secured properly
by pushing and pulling on the seat backrests.
If the seat backrest is not locked properly, the
seat backrest could fold forward. The child
restraint system is no longer supported
properly or held in position and can no longer
fulfill its function. This could cause serious or
even fatal injuries.
Top Tether provides an additional connection
between a child restraint system, secured
with a LATCH-type (ISOFIX) child seat anchor,
and the rear seat. This helps reduce the risk
of injury even further. X
Remove the cargo compartment cover
(Y page 192).
X Move the head restraint upwards.
X Install the LATCH-type (ISOFIX) child
restraint system with Top Tether. Comply
with the manufacturer's installation
instructions when doing so.
X Route Top Tether belt = under the head
restraint between the two head restraint
bars.
X Attach Top Tether hook : to Top Tether
anchorage ; on the trunk floor.
X Make sure that Top Tether belt = is not
twisted.
X Tension Top Tether belt =. Comply with
the manufacturer's installation
instructions when doing so.
X Move the head restraint back down again
slightly if necessary (
Y
page 77). Make
sure that you do not interfere with the
correct routing of Top Tether belt =. G
WARNING
Only use the described top tether anchorage
rings for the respective child seat. Other
lashing eyelets could tear in case of an
accident. Make
sure the top tether straps are
not crossed or twisted and the hook is
attached and closed properly. Children in the vehicle
51
Safety Z

Child-proof locks
Child-proof locks for the rear doors G
WARNING
Observe "Important safety notes"
( Y page 47).
G
WARNING
Children could open a rear door from inside
the vehicle. This could result in serious
injuries or an accident. Therefore, when
children ride
in the rear always secure the rear
doors with the child-proof locks.
You secure each door individually with the
child-proof locks on the rear doors. A door
secured with a child-proof lock cannot be
opened from inside the vehicle. When the
vehicle is unlocked, the door can be opened
from the outside. X
To activate: press the child-proof lock
lever down in the direction of arrow
;.
X Make sure that the child-proof locks are
working properly.
X To deactivate: press the child-proof lock
lever up in the direction of arrow :.
Override feature for the rear side
windows G
WARNING
Observe "Important safety notes"
( Y page 47). G
WARNING
When children ride on the vehicle's rear seats,
activate the override switch. Otherwise, the
children could be injured, e.g. by trapping
themselves in the rear side window. X
To deactivate: slide override switch : to
the right.
The . symbol
becomes visible. Operation
is only possible using the switches in the
driver's door.
X To release: slide override switch
:
to the
left.
The . symbol is covered. Operation using
the switches in the rear compartment is
possible again. Panic alarm52
Panic alarm
Safety

G
WARNING
The tailgate swings open to one side. Always
make sure
there is sufficient clearance for the
tailgate.
Make sure the tailgate is closed when the
engine is running and while driving. Among
other dangers, deadly carbon monoxide (CO)
gases may enter vehicle interior resulting in
unconsciousness and death.
! The tailgate swings out to the side when
opened. Therefore, make sure that there is
sufficient clearance. Opening
You can only open the rear door after
unlocking it first.
X Press the
% button on the SmartKey.
X
Press release button : and pull door
handle ;.
X Open the rear door. Closing
G
WARNING
To prevent possible personal injury, always
keep hands and fingers away from the cargo
compartment opening when closing the
tailgate. Be especially careful when small
children are around. Side windows
Important safety notes
G
WARNING
When closing the door windows, make sure
there is
no danger of anyone being harmed by
the closing procedure.
Activate the override switch when children
are riding in the back seats of the vehicle. The
children may otherwise injure themselves,
e.g. by becoming trapped in the window
opening.
The closing of the door windows can be
immediately halted by releasing the switch or
by releasing button & on the SmartKey. G
WARNING
Do
not keep any part of your body up against
the window
pane when opening a window. The
downward motion of the pane may pull that
part of your body down between the window
pane and the door frame and trap it there. If
there is a risk of entrapment, release the
switch and pull it to close the window. Opening and closing the side
windows
:
Override feature for rear door windows
; Front left
= Front right
? Rear right
A Rear left68
Side windows
Opening/closing

Useful information ..............................
74
Correct driver's seat position ............ 74
Seats .................................................... 75
Steering wheel .................................... 81
Mirrors ................................................. 84
Memory functions ............................... 85 73Seats, steering wheel and mirrors

Useful information
i This Operator's Manual describes all
models and all standard and optional
equipment of your vehicle available at the
time of publication of the Operator's
Manual. Country-specific differences are
possible. Please
note that your vehicle may
not be equipped with all features
described. This also applies to safety-
related systems and functions.
i Please read the information on qualified
specialist workshops (Y page 20). Correct driver's seat position
Observe the safety guidelines on
(
Y page 75).
X Check whether you have adjusted seat =
properly.
Electrical seat adjustment ( Y page 76).
When adjusting the seat, make sure:
R you are as far away from the driver's air
bag as possible.
R you are sitting in a normal upright
position. R
you can fasten the seat belt properly.
R you have moved the backrest to an
almost vertical position.
R you have set the seat cushion angle so
that your thighs are gently supported.
R you can depress the pedals properly.
X Check whether the head restraint is
adjusted properly (Y
page 77).
When doing so, make sure that you have
adjusted the head restraint so that the back
of your head is supported at eye level by
the center of the head restraint.
Observe the safety guidelines on
(Y page 75).
X Check whether steering wheel : is
adjusted properly.
Adjusting the steering wheel electrically
(Y page 82).
When adjusting the steering wheel, make
sure:
R you can
hold the steering wheel with your
arms slightly bent.
R you can move your legs freely.
R you can see all the displays in the
instrument cluster clearly.
Observe the safety guidelines on
(Y page 41).
X Check whether you have fastened seat
belt ; properly (Y
page 43).
The seat belt should:
R fit snugly across your body
R be routed across the middle of your
shoulder
R be routed in your pelvic area across the
hip joints
X Before starting off, adjust the rear-view
mirror and the exterior mirrors
(Y page 84) in such a way that you have
a good view of road and traffic conditions.
X Vehicles with a memory function: save
the seat,
steering wheel and exterior mirror
settings ( Y page 85).74
Correct driver's seat position
Seats, steering wheel and mirrors

Seats
Important safety notes
G
WARNING
In order to avoid possible loss of vehicle
control, all seat, head restraint, steering
wheel and rear view mirror adjustments, as
well as fastening of seat belts, must be done
before setting the vehicle in motion. G
WARNING
Do not adjust the driver's seat while driving.
Adjusting the seat while driving could cause
the driver to lose control of the vehicle.
Never travel
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. This could cause serious or
fatal injuries. The seat backrest and seat belts
provide the best restraint when the wearer is
in a position that is as upright as possible and
seat belts are properly positioned on the
body. G
WARNING
Your seat belt must be adjusted so that you
can correctly fasten your seat belt.
Observe the following points:
R adjust the
seat backrest until your arms are
slightly angled when holding the steering
wheel.
R adjust the seat to a comfortable seating
position that still allows you to reach the
accelerator/brake pedal safely. The
position should be as far back as possible
with the driver still able to operate the
controls properly.
R 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.
R never place hands under the seat or near
any moving parts while a seat is being
adjusted.
Failure to do so could result in an accident
and/or serious personal injury. G
WARNING
The electrically adjustable seats can be
operated at
any time. Therefore, 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. G
WARNING
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 seat whenever possible.
Regardless of seating position, children 12
years old and under must be seated and
properly secured in an appropriately sized
child restraint system or booster seat
recommended for the size and weight of the
child. For additional information, see the
"Children in the vehicle" section.
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. G
WARNING
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. Seats
75
Seats, steering wheel and mirrors
Z

Do not drive the vehicle without the seat head
restraints. Head restraints are intended to
help reduce injuries during an accident.
! To avoid
damage to the seats and the seat
heating, observe the following information:
R do not spill any liquids on the seats. If
liquid is spilled on the seats, dry them as
soon as possible.
R if the seat covers are damp or wet, do not
switch on the seat heating. The seat
heating should also not to be used to dry
the seats.
R clean the seat covers as recommended;
see the "Interior care" section.
R do not transport heavy loads on the
seats. Do not place sharp objects on the
seat cushions, e.g. knives, nails or tools.
The seats should only be occupied by
passengers, if possible.
R when the seat heating is in operation, do
not cover the seats with insulating
materials, e.g. blankets, coats, bags,
seat covers, child seats or booster seats.
! Make sure that there are no objects in the
footwell or behind the seats when resetting
the seats. There is a risk that the seats
and/or the objects could be damaged.
! When the rear bench seat is folded
forwards, the front seats cannot be moved
to their rearmost position. You could
otherwise damage the seats and the rear
bench seat.
! Make sure that the sun visor is folded up
before adjusting the backrest and head
restraint height. The head restraint and sun
visor could otherwise collide when the head
restraint is fully extended.
i If the front door is open, the seats can be
adjusted for up 30 minutes after the
ignition has been switched off.
i The head restraints in the front and rear
seats can be removed ( Y page 78). Please contact an authorized Mercedes-
Benz Center for more information.
i You can find further information about
enlarging the cargo compartment (folding
the rear bench seat forwards) on
(Y page 190). Adjusting the seats electrically
General notes The buttons are located on the door control
panel.
:
Head restraint height
; Backrest angle
= Seat fore-and-aft adjustment
? Seat cushion angle
A Seat height
X Turn
the SmartKey to position
1 or
2
in the
ignition lock.
Seat fore-and-aft adjustment !
Before moving the front passenger seat
forward, make sure that the cup holder on
the center
console is folded down and that
the cup holder on the armrest has been
removed. Otherwise, the front passenger
seat or the cup holders may be damaged.
X Slide the button forwards or back in the
direction of arrow =.76
Seats
Seats, steering wheel and mirrors