49 Getting started
Driving
Place the shoulder portion of the belt
across the top of your shoulder and the
lap portion across your hips.
Push latch plate2 into buckle3 until
it clicks.
If necessary, tighten the lap portion to
a snug fit by pulling shoulder portion
up.
Belt outlet height adjustment
1Release button
Press release button1 and move the
seat belt height adjuster upward or
downward.Proper use of seat belts
Do not twist the belt when fastening.
Adjust seat belt so that the shoulder
portion is located as close as possible
to the middle of the shoulder (it should
not touch the neck). Never pass the
shoulder portion of the belt under your
arm.
Position the lap belt as low as possible
on your hips (over hip joint) and not
across the abdomen.
Place the seat backrest in a nearly
upright position.
Never use a seat belt for more than one
person at a time.
Do not fasten a seat belt around a
person and another object at the same
time. When using a seat belt to secure
infant or toddler restraints or children
in booster seats, always follow the
child seat manufacturer’s instructions.
Check your seat belt periodically
during travel to make sure that it is
properly positioned.
Make sure that the seat belt is always
fitted snugly. Take special care of this
when wearing loose clothing. Warning!
G
Do not pass belts over sharp edges. They
could tear.
Do not allow the belt to get caught in the
door or in the seat adjustment mechanism.
This could damage the belt.
Never attempt to make modifications to
seat belts. This could impair the effective-
ness of the belts.
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.
Damaged seat belts or belts that were highly
stressed in an accident must be replaced.
Contact an authorized Mercedes-Benz
Center.
68 Safety and SecurityOccupant safety
Adjust the driver seat as far as possible
rearward, still permitting proper opera-
tion of vehicle controls. The distance
from the center of the driver’s breast-
bone to the center of the air bag cover
on the steering wheel must be at least
10 in (25 cm) or more. You should be
able to accomplish this by a combina-
tion of adjustments to the seat and
steering wheel. If you have any prob-
lems, please see your authorized
Mercedes-Benz Center.
Do not lean your head or chest close to
the steering wheel or dashboard.
Keep hands on the outside of steering
wheel rim. Placing hands and arms
inside the rim can increase the risk and
potential severity of hand/arm injury
when driver front air bag inflates.
Adjust the front passenger seat as far as
possible rearward from the dashboard
when the seat is occupied.
Occupants, especially children, should
never place their bodies or lean their
heads in the area of the door where the
side impact air bag inflates. This could
result in serious injuries or death should
the air bag be triggered. Always sit near-
ly upright, properly use the seat belts
and use an appropriately sized infant or
toddler restraint or booster seat recom-
mended for the size and weight of the
child.
Failure to follow these instructions can
result in severe injuries to you or other
occupants.
If you sell your vehicle, it is important that
you make the buyer aware of this safety
information. Be sure to give the buyer this
Operator’s Manual.
Warning!
G
Accident research shows that the safest
place for children in an automobile is in the
rear seat.
It should be noted that with respect to both
front and rear side impact air bags there is a
possibility for a side impact air bag related
injury if occupants, especially children, are
not properly seated or restrained when next
to a side impact air bag which needs to de-
ploy rapidly in a side impact in order to do its
job.
To help avoid the possibility of injury, please
follow these guidelines:
(1) Occupants, especially children, should
never place their bodies or lean their
heads in the area of the door where the
side impact air bag inflates. This could
result in serious injuries or death should
the side impact air bag be deployed.
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.
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).
178 Controls in detailControl systemSetting parking position for exterior rear
view mirror
Use the
Mirror adjustment parking aid
function to select whether the passen-
ger-side exterior rear view mirror should be
turned downward during parking maneu-
vers when reverse gearR is engaged. For
additional information, see “Activating ex-
terior rear view mirror parking position”
(
page 198).
Move the selection marker to the Convenience
submenu using
buttonæ orç.
Press buttonj ork repeatedly
until the message
Mirror adjustment
parking aid
appears in the multifunc-
tion display.
The selection marker is on the current
setting.
Press buttonæ orç to switch Mirror adjustment parking aid
on or
off
.Dynamic seat* submenu
Access the
Dynamic Seat
submenu via the
Settings
menu. Use the
Dynamic Seat
submenu to change the settings for the dy-
namic seats. The following functions are
available:
Function
Page
Adjust driver seat
179
Adjust passenger seat
179
179 Controls in detail
Control system
Adjusting the dynamic seat
The function dynamic seat adjustment lets
you determine the way the seat adjusts
while driving.
Move the selection marker with
buttonæ orç to the Dynamic Seat
submenu.
Press buttonj ork repeatedly
until the message
Dyn. multi-cont.
seat, driver
for the driver seat or
Dyn. multi-cont. seat, fr. pass.
for the passenger seat appears in the
multifunction display.
The selection marker is on the current
setting.
Press buttonæ orç to switch
function to
Weak
or
Powerful
.The following settings are available:
Weak
(Comfort) Less lat-
eral support and
slow air pressure
build-up in the air
chambers of the
backrest side bol-
sters
Powerful
(Sporty) Strong lat-
eral support and
fast air pressure
build-up in the air
chambers of the
backrest side bol-
sters
504 IndexGear selector lever, Cleaning 368
Global Positioning System see GPS
Glove box 272
Good visibility 197
GPS 493
Gross Axle Weight Rating see GAWR
Gross Vehicle Weight Rating see GVWR
Gross Vehicle Weight see GVW
GVW 351
GVWR 351
H
Halogen headlamps see Headlamps
Hard plastic trim items, cleaning 368
Hazard warning flasher 147
Head restraints 129
Folding back 132
Front seat, Adjusting 42
Rear seat, Removing and installing
Removing and installing 132
Headlamp cleaning system* 197
Headlamp shut-off delay see Delayed
shut-off, Exterior lampsHeadlamps
Automatic headlamp mode 144
Bi-Xenon*
Cleaning lenses 365
Cleaning system* 197
Halogen 434
High beam see High beam flasher
High beam see High beam headlamps
Low beam see Low beam headlamps
Manual headlamp mode 144
Messages in display 409, 410, 411,
412
Replacing bulbs 434
Switch 54
Headliner and shelf below rear window,
Cleaning and care of 368
Heated seats* 135
Heated steering wheel* 279
Height adjustment
Vehicle level control 256
High beam flasher 147
High beam headlamps
Indicator lamp 25
Messages in display 410
Replacing bulbs 432
Switching onHigh mounted brake lamp 432
Hood 315
Message in display 407
Horn 23
Hydroplaning 305
I
Identification labels 468
Identification Number, Vehicle (VIN) 468
Ignition 36, 50
Switching on 51
Immobilizer 101
Indicator lamps see Lamps, indicator and
warning
Infant and child restraint systems see Chil-
dren in the vehicle
Inflation pressure see Tires, Inflation pres-
sure
Inside door handle 119
Instrument cluster 24, 151, 493
Cleaning 367
Illumination brightness 151
Lamps 372
Messages in display see Multifunction
display messages
Multifunction display 155
510 IndexReset button, In instrument cluster 25,
151, 166
Rest tool
Depository 428
Restraint system see Children in the vehi-
cle
Restraint system see SRS
Reverse gear position 186
Rim 352
Rims 472
Roadside Assistance 12
Roller sunblind* 200
RON 313, 495
Rubber parts, cleaning 367
S
Safety
Driving safety systems 91
Occupant 66
Reporting defects 18
Safety belts see Seat belts 47
Satellite radio* 162
Seat belt force limiter 76Seat belts 72
Children in the vehicle
Cleaning 368
Fastening 47
Height adjustment 49
Message in display 414
Proper use of 49, 74
Safety guidelines 70
Telltale 25, 377
Warning lamp 377
Seat cushions
Removing and installing 138
Seating capacity 329
Seats 40, 129
Drive-Dynamic seat* with multicontour
features 133
Easy-entry/exit feature 43
Heater* 135
Memory function 140
Split rear bench seat* 260
Ventilation 136
Securing cargo
Cargo tie-down rings 264
Selector lever see Gear selector leverSelf-test
OCS 85
Tele Aid 283
Service and warranty information 10
Service intervals see Maintenance, Service
indicator
Service life, Tires 325
Service see Maintenance
Service system see FSS (Canada vehicles)
or Maintenance System (US vehicles)
Service, Parts 466
Settings 114
Control system menus 157
Control system submenus 157
Date 171, 172
Factory, SmartKey 108
Individual, Vehicle 165
Memory function 140
Resetting all, Control system 166
Selective, SmartKey 109
Selective, SmartKey with
KEYLESS-GO* 115
Time 171
Shelf below rear window, cleaning 368
Shift lock 495
Shift program mode 189