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 safetyWarning!
G
To reduce the risk of injury when the front
air bags inflate, it is very important for the
driver and front passenger to always be in a
properly seated position and to wear their
respective seat belts.
For maximum protection in the event of a
collision always be in normal seated position
with your back against the backrest. Fasten
your seat belt and make sure that it is prop-
erly positioned on your body.
Since the air bag inflates with considerable
speed and force, a proper seating and hands
on steering wheel position will help to keep
you at a safe distance from the air bag.
Occupants who are unbelted, out of position
or too close to the air bag can be seriously
injured or killed by an air bag as it inflates
with great force in the blink of an eye:
Sit properly belted in a nearly upright
position with your back against the seat
backrest.
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.
131 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 77).
Rear seat head restraints
Folding head restraints back with
switch in the center console
The rear seat head restraints can be folded
backward for increased visibility.
1Head restraint release switch
Switch on the ignition (
page 36).
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.
iThe rear seat head restraints cannot be
adjusted.
133 Controls in detailSeats
1Release catch
Removing rear seat head restraints
Fold the backrest forward
(page 271).
Fold back head restraint (
page 131).
Press head restraint release catch1
and pull the head restraints out of the
guides.
Fold the backrest back to its original
position.Installing rear seat head restraints
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.
iWhen installing the head restraints,
make sure that:
you place the correct head restraint
on the middle seat. It is marked
with the letter “M” on the outside of
the metal bars.
the head restraints engage fully.
177 Controls in detail
Control system
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: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:
Function
Page
Adjust driver seat
177
Adjust passenger seat
177
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
508 IndexHead restraints 131
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 lamps
Headlamps
Automatic headlamp mode 142
Bi-Xenon*
Cleaning lenses 367
Cleaning system* 197
Halogen 436
High beam see High beam flasher
High beam see High beam headlamps
Low beam see Low beam headlamps
Manual headlamp mode 142
Messages in display 412, 413, 414,
415
Replacing bulbs 436
Switch 54
Headliner and shelf below rear window,
Cleaning and care of 371
Heated seats* 135
Heated steering wheel* 283Height adjustment
Vehicle level control 260
High beam flasher 145
High beam headlamps
Indicator lamp 25
Messages in display 414
Replacing bulbs 434
Switching on
High mounted brake lamp 434
Hood 319
Message in display 410
Horn 23
Hydroplaning 307
I
Identification labels 468
Identification Number, Vehicle (VIN) 468
Ignition 36, 50, 51
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 119Instrument cluster 24, 150, 495
Cleaning 370
Illumination brightness 150
Lamps 374
Messages in display see Multifunction
display messages
Multifunction display 153
Instrument lighting see Instrument cluster,
Illumination brightness
Instrument panel see Instrument cluster
Instruments and controls see Cockpit
Interior lighting
Delayed shut-off 173
Interior rear view mirror 45
Auto-dimming mirrors 197
Interior storage spaces see Storage com-
partments
J
Jack 422
Jump starting 454
514 IndexSatellite radio* 160
Seat belt force limiter 76
Seat belts 73
Children in the vehicle
Cleaning 371
Fastening 47
Height adjustment 49
Message in display 417
Proper use of 49, 75
Safety guidelines 70
Telltale 25, 380
Warning lamp 380
Seating capacity 333
Seats 40, 131
Drive-Dynamic seat* with multicontour
features 134
Easy-entry/exit feature 43
Heater* 135
Memory function 138
Ventilation 136
Seats, Rear bench seat* 271
Securing cargo
Cargo tie-down rings 275
Selector lever see Gear selector leverSelf-test
OCS 86
Tele Aid 286
Service and warranty information 10
Service intervals see Maintenance, Service
indicator
Service life, Tires 329
Service see Maintenance
Service system see FSS (Canada vehicles)
or Maintenance System (US vehicles)
Service, Parts 466
Settings 114
Control system menus 155
Control system submenus 155
Date 169, 170
Factory, SmartKey 108
Individual, Vehicle 163
Memory function 139
Resetting all, Control system 164
Selective, SmartKey 108
Selective, SmartKey with
KEYLESS-GO* 115
Time 169
Shelf below rear window, cleaning 371
Shift lock 497
Shift program mode 189Shifting
Into optimal gear range (automatic
transmission) 190
Side impact air bags 72
Side marker lamps
Cleaning lenses 367
Side windows see Power windows
Sidewall 355
Ski sack* 268, 270, 271
SmartKey see Key, SmartKey
Snow chains 359
Snow tires 358
Spare fuses 461
Spare wheel 422
Mounting 441
Speed settings
Cruise control 246
Distronic* 253
Speedometer 25, 249
SRS 66, 497
Indicator lamp 25, 383
Message in display 418
Standing lamps 141
Standing water, Driving through 310
Starter switch 36
Positions 36