
40 Getting startedAdjusting
Seat adjustment
The seat adjustment switch is located in 
the door.
1Head restraint height
2Seat height
3Seat cushion tilt
4Seat cushion depth
5Seat fore and aft adjustment
6Backrest tilt
Switch on the ignition (
page 36).
or
Open the respective door.Seat fore and aft adjustment 
Press the switch forward or backward 
in direction of arrow 5.
Adjust seat to a comfortable seating 
position that still allows you to reach 
the accelerator / brake pedal safely. 
The position should be as far to the rear 
as possible, consistent with ability to 
properly operate controls.
Warning!
G
Children 12 years old and under must never 
ride in this vehicle, except in a 
Mercedes-Benz authorized BabySmart
TM 
compatible child seat, which operates with 
the BabySmart
TM system installed in the ve-
hicle to deactivate the passenger front air-
bag when it is properly installed. Otherwise 
they will be struck by the airbag when it in-
flates in a crash. If this happens, serious or 
fatal injury will result.
Infants and small children must be seated in 
an appropriate infant or child restraint sys-
tem, which is properly secured with the ve-
hicle’s seat belt, fully in accordance with the 
child seat manufacturer’s instructions.
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.
iThe memory function (
page 121) lets 
you store the settings for the seat posi-
tion together with the settings for the 
steering wheel and the exterior rear 
view mirrors.
!When moving the seats, make sure 
there are no items in the footwell or be-
hind the seats. Otherwise you could 
damage the seats.  

46 Getting startedDriving
Fastening the seat belts
Warning!
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 maneu-
vers, 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 your passengers are 
properly restrained, even 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 passenger should al-
ways 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 airbags can only provide the 
protection they were designed to afford if 
the occupants are using their seat belts 
(page 64).
Warning!
G
Children 12 years old and under must never 
ride in this vehicle, except in a 
Mercedes-Benz authorized BabySmart
TM 
compatible child seat, which operates with 
the BabySmart
TM system installed in the ve-
hicle to deactivate the passenger front air-
bag when it is properly installed. Otherwise 
they will be struck by the airbag when it in-
flates in a crash. If this happens, serious or 
fatal injury will result. 

67 Safety and Security
Occupant safety
Warning!
G
Should you choose to place a child 12 years 
old or under in the passenger seat of your 
vehicle, you must properly use a 
BabySmart
TM child restraint which will turn 
off the passenger front airbag (
page 76). 
BabySmart
TM will not, however, turn off any 
side impact airbag.
It should be noted, however, that there is a 
possibility for a head-thorax airbag related 
injury if occupants, especially children, are 
not properly seated or restrained when next 
to a head-thorax airbag 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 
head-thorax airbag inflates. This could 
result in serious injuries or death should 
the head-thorax airbag be activated.
(2) Always sit nearly upright, properly use 
the seat belts and use an appropriately 
sized infant or child restraint system for 
all children 12 years old or under.
(3) Always wear seat belts properly.
If you believe that, even with the use of 
these guidelines, it would be safer for your 
passenger seat occupants to have the pas-
senger side head-thorax airbag deactivated, 
then deactivation can be accomplished 
upon your written election to do so at an au-
thorized Mercedes-Benz Center at an addi-
tional cost. Please contact your local 
authorized Mercedes-Benz Center or call 
our Customer Assistance Center at 
1-800-FOR-MERCedes (1-800-367-6372) 
for details. 

77 Safety and Security
Occupant safety
Infant and child restraint systems
Only use a BabySmart
TM compatible child 
restraint for the front passenger seat in 
this vehicle.
We recommend all infants and children be 
properly restrained at all times while the 
vehicle is in motion.
The passenger lap-shoulder belt has a spe-
cial seat belt retractor for the secure fas-
tening of child restraints.
To fasten a child restraint follow child re-
straint instructions for mounting. Then pull 
the shoulder belt out completely and let it 
retract. During the seat belt retraction a 
ratcheting sound can be heard to indicate 
that the special seat belt retractor is acti-
vated. The belt is now locked. Push down 
on child restraint to take up any slack.
To deactivate, release seat belt buckle and 
let seat belt retract completely. The seat 
belt can again be used in the usual man-
ner.The use of infant or child restraints is re-
quired by law in all 50 states, the District of 
Columbia, the U.S. territories, and all Ca-
nadian provinces.
Infants and small children should be seat-
ed in an appropriate infant or child re-
straint system which is properly secured 
by a lap-shoulder belt and that complies 
with U.S. Federal Motor Vehicle Safety 
Standard 213 and Canadian Motor Vehicle 
Safety Standard 213.
A statement by the child restraint manu-
facturer of compliance with this standard 
can be found on the instruction label on 
the restraint and in the instruction manual 
provided with the restraint.When using any infant or child restraint 
system, be sure to carefully read and fol-
low all manufacturer’s instructions for in-
stallation and use. 
Please read and observe warning labels af-
fixed to inside of vehicle and to infant or 
child restraints.
Warning!
G
Never release the seat belt buckle while the 
vehicle is in motion, since the special seat 
belt retractor will be deactivated.
Warning!
G
Children 12 years old and under must never 
ride in this vehicle, except in a 
Mercedes-Benz authorized BabySmart
TM 
compatible child seat, which operates with 
the BabySmart
TM system installed in the ve-
hicle to deactivate the passenger front air-
bag when it is properly installed. Otherwise 
they will be struck by the airbag when it in-
flates in a crash. If this happens, serious or 
fatal injury will result.
 

79 Safety and Security
Occupant safety
The 7indicator lamp located on the 
glove box will be illuminated, except with 
the SmartKey removed or in starter switch 
position0.
Self-test BabySmart
TM without special 
child seat installed
After turning the SmartKey in the starter 
switch to position1 or2 or pressing the 
KEYLESS-GO* start/stop button once or 
twice, the 7 indicator lamp located on 
the glove box comes on for approximately 
6 seconds and then goes out.
If the indicator lamp should not come on or 
is continuously lit, the system is not func-
tioning. You must see an authorized 
Mercedes-Benz Center before seating any 
child on the passenger seat.
iThe system does not deactivate the 
head-thorax airbag and the emergency 
tensioning device.
Warning!
G
The BabySmart
TM airbag deactivation sys-
tem will ONLY work with a special child seat 
designed to operate with it. It will not work 
with child seats which are not BabySmart
TM 
compatible.
Never place anything between seat cushion 
and child seat (e.g. pillow), since it reduces 
the effectiveness of the deactivation sys-
tem. 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 protecting the child.
Follow the manufacturer’s instructions for 
installation of special child seats.
Warning!
G
When using a BabySmart
TM compatible child 
seat on the front passenger seat, the pas-
senger front airbag will not deploy only if the 
7 indicator lamp remains illuminated. 
Please be sure to check the indicator every 
time you use the special system child seat. 
Should the light go out while the restraint is 
installed, please check installation. If the 
light remains out, do not use the 
BabySmart
TM restraint to transport children 
on the passenger seat until the system has 
been repaired. 

453 Technical terms
ABS
(A
ntilock B
rake S
ystem)
Prevents the wheels from locking up 
during braking so that the vehicle can 
continue to be steered.
ABC
(A
ctive B
ody C
ontrol)
Active, computer-controlled system 
that hydraulically adjusts the suspen-
sion at all four wheels in response to 
various driving situations.
Accessory weight
(
page 310)
Air pressure
(page 310)
Alignment bolt
Metal pin with thread. The alignment 
bolt, or centering bolt, is an aid used 
when changing a tire to align the wheel 
with the wheel hub.
Aspect ratio
(page 310)BabySmart
TM airbag deactivation 
system
This system detects if a special system 
compatible child restraint seat is in-
stalled on the front passenger seat. The 
system will automatically deactivate 
the passenger front airbag when such a 
seat is properly installed (indicator 
lamp 7 on the glove box comes on 
and remains illuminated). 
BabySmartTM compatible child seats
Special restraint system for children. 
The sensor system for the passenger 
seat prevents deployment of the pas-
senger front airbag if a BabySmart
TM 
compatible child seat is installed. See 
your authorized Mercedes-Benz Center 
for availability.
Bar
(
page 310)BAS
(B
rake A
ssist S
ystem)
System for potentially reducing braking 
distances in emergency braking situa-
tions. The system is activated when it 
senses an emergency based on how 
fast the brake is applied.
Bead
(
page 310)
Bi-Xenon headlamps*
Headlamps which use an electric arc as 
the light source and produce a more in-
tense light than filament headlamps. 
Bi-Xenon headlamps produce low 
beam and high beam.
CAC
(Customer A
ssistance C
enter)
Mercedes-Benz customer service cen-
ter, which can help you with any ques-
tions about your vehicle and provide 
assistance in the event of a break-
down.