ContentsSafety and Security........................... 59
Occupant safety................................... 60
Air bags ......................................... 61
Seat belts ....................................... 67
Children in the vehicle .................... 71
Blocking of rear door window
operation ........................................ 83
Panic alarm .......................................... 84
Activating ....................................... 84
Deactivating ................................... 84
Driving safety systems ......................... 85
ABS ................................................ 85
BAS ................................................ 87
ESP ................................................. 87
SBC brake system .......................... 90
Four wheel electronic traction
system (4MATIC) with the ESP ....... 93
Anti-theft systems................................ 94
Immobilizer..................................... 94
Anti-theft alarm system .................. 94
Tow-away alarm ............................. 95
Controls in detail............................... 97
Locking and unlocking ......................... 98
SmartKey ....................................... 98
SmartKey with KEYLESS-GO* ...... 102
Opening the doors from
the inside ..................................... 109
Opening the trunk ........................ 110
Closing the trunk.......................... 112
Trunk lid emergency release ........ 117
Automatic central locking ............ 118
Locking and unlocking from
the inside ..................................... 119
Seats ................................................. 121
Easy-entry/exit feature ................ 121
Removing and installing front
seat head restraints ..................... 123
Rear seat head restraints ............. 124
Drive - Dynamic seat* with
multicontour features................... 126
Seat heating* ............................... 127
Seat ventilation* .......................... 128Memory function ............................... 130
Storing positions into memory ..... 131
Recalling positions from memory . 131
Storing exterior rear view mirror
parking position ........................... 132
Lighting ............................................. 133
Exterior lamp switch .................... 133
Combination switch ..................... 137
Hazard warning flasher ................ 138
Interior lighting in the front .......... 139
Door entry lamps ......................... 140
Interior lighting in the rear ........... 141
Trunk lamp ................................... 141
Instrument cluster ............................. 142
Instrument cluster illumination .... 142
Coolant temperature indicator ..... 143
Trip odometer .............................. 143
Tachometer .................................. 144
Outside temperature indicator ..... 144
14 IntroductionWhere to find itThis Operator’s Manual is designed to pro-
vide comprehensive support information
for you, the vehicle operator. For easy
access, each section has its own reference
color:At a glance
Here you will find an overview of all the
controls that can be operated from the
driver’s seat.Getting started
Here you will find all the information you
need for your first drive. You should read
this section first if this is your first
Mercedes-Benz vehicle or if you are rent-
ing or borrowing this vehicle.Safety and Security
Here you will find descriptions of the safety
features of your vehicle.
Controls in detail
Here you will find detailed information
about the equipment installed in your vehi-
cle. This section expands on the “Getting
started” section and also describes techni-
cal innovations. If you are already familiar
with the basic functions of your vehicle,
this section will be of particular interest to
you.Operation
Here you will find all the information you
need for the proper operation of your vehi-
cle.Practical hints
This section provides fast assistance for
dealing with problems you may encounter.
Technical data
All important technical data for your vehi-
cle can be found in this section.Indexes
The glossary provides explanations of the
most important technical terms.
The table of contents and the index are de-
signed to help you find information quickly
and easily.
The following publications are part of your
vehicle documentation:
this Operator’s Manual
the Maintenance Booklet
Separate operating instructions will be
provided as required depending on the
equipment options installed in your vehi-
cle.
37 Getting started
Adjusting
Adjusting
SeatsWarning!
G
All seat, head restraint, steering wheel, and
rear view mirror adjustments, as well as fas-
tening of seat belts, must be done before
the vehicle is put into motion.Warning!
G
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 ride 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 belt would apply force at the ab-
domen or neck. That could cause serious or
fatal injuries. The seat back and seat belts
provide the best restraint when the wearer
is in a nearly upright position and belts are
properly positioned on the body.
Your seat must be adjusted so that you can
correctly fasten your seat belt (
page 43).
Never place hands under the seat or near
any moving parts while a seat is being ad-
justed.
Warning!
G
When leaving the vehicle, always remove the
SmartKey or the SmartKey with
KEYLESS-GO* from the starter switch, take
it with you, and lock the vehicle.
Even with the SmartKey or the SmartKey
with KEYLESS-GO* removed from the start-
er switch or the SmartKey with
KEYLESS-GO* removed from the vehicle,
the power seats can be operated when the
respective door is open. Therefore, do not
leave children unattended in the vehicle, or
with access to an unlocked vehicle. Unsu-
pervised use of vehicle equipment may
cause an accident and / or serious personal
injury.
Warning!
G
According to accident statistics, children
are safer when properly restrained in the
rear seating positions than in the front seat-
ing position. Thus, we strongly recommend
that children be placed in the rear seats. Re-
gardless of seating position, children 12
years old and under must be seated and
properly secured in an appropriate infant or
toddler restraint, or booster seat recom-
mended for the size and weight of the child.
For additional information, see “Children in
the vehicle” (
page 71).
A child’s risk of serious or fatal injuries is
significantly increased if the child restraints
are not properly secured in the vehicle and
the child is not properly secured in the child
restraint.
43 Getting started
Driving
Driving
Fastening the seat beltsWarning!
G
Do not lay any objects in the driver’s foot-
well. Be careful that floor mats or carpets in
the driver’s footwell have sufficient clear-
ance for the pedals.
During sudden driving or braking maneuvers
the objects could get caught between the
pedals. You could then no longer brake or
accelerate.Warning!
G
Always fasten your seat belt before driving
off. Always make sure all of your passengers
are properly restrained, even those sitting in
the rear and pregnant women.
Failure to wear and properly fasten and po-
sition your seat belt greatly increases your
risk of injuries and their likely severity in an
accident. You and your passengers should
always wear seat belts.
If you are ever in an accident, your injuries
can be considerably more severe without
your seat belt properly buckled. Without
your seat belt buckled, you are much more
likely to hit the interior of the vehicle or be
ejected from it. You can be seriously injured
or killed.
In the same crash, the possibility of injury or
death is lessened if you are wearing your
seat belt. The air bags can only provide the
protection they were designed to afford if
the occupants are using their seat belts
(page 67).
Warning!
G
According to accident statistics, children
are safer when properly restrained in the
rear seating positions than in the front seat-
ing position. Thus, we strongly recommend
that children be placed in the rear seats.
Regardless of seating position, children
12 years old and under must be seated and
properly secured in an appropriate infant or
toddler restraint, or booster seat recom-
mended for the size and weight of the child.
For additional information, see “Children in
the vehicle” (
page 71).
A child’s risk of serious or fatal injuries is
significantly increased if the child restraints
are not properly secured in the vehicle and
the child is not properly secured in the child
restraint.
44 Getting startedDriving
1Retractor
2Latch plate
3Buckle
4Release button
Warning!
G
Never let more people ride in the vehicle
than there are seat belts available. Be sure
everyone riding in the vehicle is correctly re-
strained with a separate seat belt. Never use
a seat belt for more than one person at a
time.
Warning!
G
Never ride 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 belt would apply force at the ab-
domen or neck. That could cause serious or
even fatal injuries. The seat backrest and
seat belt provide the best restraint when the
wearer is in a nearly upright position and the
belt is properly positioned on the body.Warning!
G
Read and observe the additional warning no-
tices printed in the “Safety and security”
section (
page 67).
45 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 up-
right position.
Never use a seat belt for more than one
person at a time.
Do not fasten a seat belt around a per-
son 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 dur-
ing travel to make sure that it is proper-
ly 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.
59 Safety and Security
Occupant safety
Panic alarm
Driving safety systems
Anti-theft systems
60 Safety and SecurityOccupant safetyIn this section you will learn the most im-
portant facts about the restraint system
components of the vehicle.
Seat belts (
page 67)
Child restraints (
page 80)
Lower anchors and tethers for children
(LATCH) (
page 81)
Supplemental Restraint System (SRS) with
Air bags (
page 61)
Air bag control unit (with crash sen-
sors)
Emergency tensioning device (ETD) for
seat belts (
page 70)Air bag system components with
75indicator lamp
(page 78)
Front passenger seat with Occupant
Classification System (OCS)
(page 74)
As independent systems, their protective
functions work in conjunction with each
other. The SRS system conducts a self-test when
the ignition is switched on and in regular
intervals while the engine is running. This
facilitates early detection of malfunctions.
The
1
indicator lamp in the instrument
cluster lights up when the ignition is
switched on and goes out no later than a
few seconds after the engine has been
started.
The SRS components are in operational
readiness if the
1
indicator lamp is not
lit when the engine is running.
A malfunction in the system has been
detected if the
1
indicator lamp:
fails to go out after approximately
four seconds after the engine was
started
does not come on at all
comes on after the engine was started
or while driving
iFor information on infants and children
traveling with you in the vehicle and
restraint systems for infants and chil-
dren, see “Children in the vehicle”
(page 71).