38 Getting startedAdjustingSeat adjustment
The seat adjustment switches are located
on the front doors.
1Head restraint height
2Seat height
3Seat cushion tilt
4Seat fore and aft adjustment
5Backrest tilt
Switch on the ignition (
page 33).
or
Open the respective door.Seat fore and aft adjustment
Press the switch forward or backward
in the direction of arrow4.
Adjust a comfortable seating position
that still allows you to reach the accel-
erator/brake pedal safely. The position
should be as far to the rear as possible,
consistent with ability to properly oper-
ate controls.Seat cushion tilt
Press the switch up or down in the di-
rection of arrow3 until your upper
legs are lightly supported.
Backrest tilt
Press the switch forward or backward
in the direction of arrow5 until your
arms are slightly angled when holding
the steering wheel.
Seat height
Press the switch up or down in the di-
rection of arrow2.
iWhen moving the seat, be sure there
are no items in the footwell or behind
the seats. Otherwise you could damage
the seats.
The memory function (
page 130) lets
you store the setting for the seat posi-
tion together with the setting for the
steering wheel and the exterior rear
view mirrors.
39 Getting started
Adjusting
Head restraint height
Press the switch up or down in the di-
rection of arrow5.Head restraint tilt
Manually adjust the angle of the head re-
straint.
Push or pull on the lower edge of the
head restraint cushion.
For more information on seats, see the
“Controls in detail” section (
page 121).
Steering wheel
iAdjust the head restraint in such a way
that it is as close to the head as possi-
ble.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
Do not adjust the steering wheel while driv-
ing. Adjusting the steering wheel while driv-
ing could cause the driver to lose control of
the vehicle.
When leaving the vehicle, always remove the
SmartKey or the SmartKey with
KEYLESS-GO* from the starter switch, take
it with you, and lock your vehicle.
Even with the SmartKey removed from the
starter switch or the SmartKey with
KEYLESS-GO* removed from the vehicle,
the steering wheel adjustment feature can
be operated when the driver’s door is open.
Therefore, do not leave children unattended
in the vehicle, or with access to an unlocked
vehicle. Unsupervised use of vehicle equip-
ment may cause an accident and / or seri-
ous personal injury.
75 Safety and Security
Occupant safety
Furthermore, the occupant weight may ap-
pear to increase or decrease due to
objects hanging on the seat, other passen-
gers pushing on the seat, objects lodged
underneath the seat or stuffed between
seat and middle console or between seat
and door or due to objects applying pres-
sure on the back of the seat. Always make
sure that the seat has clearance in all di-
rections at all times.
Both driver and the front passenger should
always use the 75 indicator
lamp as an indication of whether or not the
front passenger is properly positioned.
iIf your seat, including your trim cover
and cushion needs to be serviced in
any way, take the vehicle to your autho-
rized Mercedes-Benz Center.
Only seat accessories approved by
Mercedes-Benz may be used.
Warning!
G
If the 75 indicator lamp illumi-
nates when an adult or someone larger than
a small individual is in the front passenger
seat, have the front passenger re-position
himself or herself in the seat until the light
goes out, or check whether objects are
caught under or around the seat.
More information about air bag display mes-
sages (
page 374).
In the event of a collision, the air bag control
unit will not allow front passenger front
air bag deployment when the OCS classified
the front passenger seat occupant as being
up to or less than the weight of a typical
12-month-old child in a standard child re-
straint or if the front passenger seat is
sensed as being empty.
When the OCS senses that the front passen-
ger seat occupant is classified as being up
to or less than the weight of a typical
12-month-old child in a standard child re-
straint, the 75 indicator lamp will
illuminate when the engine is started and re-
main illuminated, indicating that the front
passenger front air bag is deactivated.
When the OCS senses that the front passen-
ger seat is classified as being empty, the
75 indicator lamp will illuminate
when the engine is started and remain illu-
minated, indicating that the front passenger
front air bag is deactivated.
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.
126 Controls in detailSeatsDrive - 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.
Additional 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 after turning the SmartKey
in the starter switch to position2 or press-
ing the KEYLESS-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 33).Multicontour features
Seat cushion depth
Adjust the seat cushion depth to the
length of your upper leg using
switch3.
Backrest contour
Adjust the contour of the backrest to
the desired position using æ or
ç.
Move the backrest support to the bot-
tom by using button2 or to the center
by using button1.
Backrest side bolders
Adjust the side bolsters so that they
provide good lateral support using
switch5.
127 Controls in detailSeats
Drive-dynamic features
Activating
Press button4 (
page 126).
The indicator lamp in the button comes
on for five seconds and the following
display appears in the multi-function
display for about five seconds.
Deactivating
Press button4 (
page 126) again.
The indicator lamp in the button goes
out.Massage function (PULSE)
The massage function can help prevent
muscle tension during long drives.
Press button6 (
page 126).
The indicator lamp in button2 comes
on. The air cushions in the lumbar area
pulsate.
Seat heating*
Both switches for the front seats are locat-
ed in the center console. The red indicator
lamps in the switch come on to show
which heating level you have selected.
iYou can adjust the characteristics of
the Drive - Dynamic seat using the con-
trol system (
page 169).
iWhen the engine is turned off, the last
cushion setting is retained in memory.
The cushion is automatically adjusted
to this setting when the engine is re-
started.iThe massage function turns off auto-
matically after approximately five min-
utes.
Leveloff
No indicator lamps on
1
One indicator lamp on
2
Two indicator lamps onThe seat heater automatically
switches to level 1 after approxi-
mately ten minutes.
3
Three indicator lamps onThe seat heater automatically
switches to level 2 after approxi-
mately five minutes.
257 Controls in detail
Loading
Removal of ski sack
For removal of the ski sack, we recom-
mend that you contact an authorized
Mercedes-Benz Center.
Split rear bench seat*
To expand the trunk, you can fold down the
left and right rear seat backrests.
The two sections can be folded down sep-
arately to enlarge the trunk.Folding the backrest forward
1Release handle
Warning!
G
Never drive vehicle with trunk open while
the ski sack is removed. Deadly carbon
monoxide (CO) gases may enter vehicle in-
terior, resulting in unconsciousness and
death.iTo prevent unauthorized persons from
access to the trunk, always close the
cover.
Warning!
G
When expanding the luggage compartment,
always fold the seat cushions fully forward.
Unless you are transporting cargo, the back-
rests must remain properly locked in the up-
right position.
In an accident, during hard braking or sud-
den maneuvers, loose items will be thrown
around inside the vehicle, and cause injury
to vehicle occupants unless the items are
securely fastened in the vehicle.
Always use the cargo tie down rings
(page 261).
!You must always release the seat cush-
ion and fold it up before folding the seat
backrests forward. The upholstery on
the seat backrest may otherwise be
damaged.
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.