Page 34 of 384

34 Getting startedAdjusting
AdjustingSeatsWarning!
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
back reclined. Sitting in an extremely re-
clined position 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 abdomen or neck. That could cause se-
rious or fatal injuries. The seat back and seat
belts provide the best restraint when the
wearer is in an upright position and belts are
properly positioned on the body.
Your seat must be adjusted so that you can
correctly fasten your seat belt.
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
key from the starter switch, take the KEY-
LESS-GO* card with you, and lock your vehi-
cle.
The power seats can also be operated with
the driver’s or passenger door open. 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
Children 12 years old and under must never
ride in the front seat, 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 front passenger 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.
According to accident statistics, children
are safer when properly restrained in the
rear seating positions than in the front seat-
ing positions. Infants and small children
must ride in back seats and be seated in an
appropriate infant or child restraint system,
which is properly secured with the vehicle's
seat belt and top tether strap, or secured via
lower anchors and top tether strap, fully in
accordance with the child seat manufactur-
er’s instructions.
Page 35 of 384
35 Getting started
Adjusting
Seat adjustment
The seat adjustment switches are located
in each door.
1Head restraint height
2Seat height
3Seat cushion tilt
4Seat cushion depth
5Seat fore and aft adjustment
6Seat backrest tilt
Turn the key in the starter switch to
position1or2.
or
Press the KEYLESS GO* start/stop
button once or twice.
or
Open the driver’s or passenger door.
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.
Page 37 of 384

37 Getting started
Adjusting
More information can be found in the
“Controls in detail” section (
page 97).
Steering wheel Steering wheel adjustment
The stalk for steering wheel adjustment is
located on the steering column (lower left).
1Steering column, lengthen or shorten
2Steering column, height
Turn the key in the starter switch to
position1or2.
or
Press the KEYLESS GO* start/stop
button once or twice.
or
Open the driver’s or passenger door.
iThe front passenger seat head restraint
automatically lowers after a few sec-
onds when the front passenger seat is
not occupied.This improves the driver's
outward view as well as the forward
view from the rear passenger compart-
ment.
When the front passenger seat is occu-
pied again, the front passenger head
restraint returns to the last set position
within a few seconds.
If the front passenger seat was moved
fore or aft while not being occupied,
the front passenger seat head restraint
returns to a position that corresponds
best with the seat's axial position when
the seat is occupied again.
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
key from the starter switch, and take the
KEYLESS-GO
* card with you.
The steering wheel adjustment feature can
also be operated with the driver’s door
open. 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 serious
personal injury.
Page 43 of 384

43 Getting started
Driving
Automatic transmissionGearshift pattern for automatic
transmissionPPark position with selector lever lock
RReverse gear
NNeutral
DDrive position
Make sure that the gear selector lever
is set toP.Starting with the SmartKey
Turn the key in the starter switch to
position3 and hold until the engine
starts (
page 31).
Firmly depress the brake pedal.
The selector lever lock is released.
For information on turning off the engine
with the SmartKey, see “Turning off engine
with the SmartKey” (
page 51).
Starting with KEYLESS-GO*
You can start your vehicle without a key
using the KEYLESS-GO start/stop button
on the gear selector lever.1KEYLESS-GO start/stop button
Firmly depress the brake pedal during
the starting procedure. Do not depress
accelerator.
The selector lever lock is released.
Press KEYLESS-GO start/stop
button1 once.
The engine starts automatically.
For information on turning off the engine
with KEYLESS-GO, see “Turning off engine
with KEYLESS-GO” (
page 51).
iYou can also use the “touch-start”
function. Turn the key to position3 and
release it again immediately. The en-
gine then starts automatically.
Page 44 of 384

44 Getting startedDrivingStarting difficulties
If the engine does not start as described
above, carry out the following steps:
If you are starting the engine with the
SmartKey, turn key in starter switch to
position0 and repeat starting proce-
dure.
If you are starting the engine with
KEYLESS-GO: Close all doors to allow
for better detection of the KEYLESS-GO
card.
Or:
Start the engine with the key as radio
signals from another source may be in-
terfering with the KEYLESS-GO card.
Repeat the starting procedure
(page 42). Remember that extended
starting attempts can drain the battery.
Get a jump start (
page 316).
If the engine does not start after several
starting attempts, there could be a mal-
function in the engine electronics or in the
fuel supply system.
Notify an authorized Mercedes-Benz
Center.
Parking brake
1Parking brake pedal
2Parking brake release handle
Release the parking brake by pulling on
handle2.
The indicator lamp
;
(USA only) or
3
(Canada only) in the instrument
cluster goes out.
Warning!
G
When leaving the vehicle, always remove the
key from the starter switch, take the KEY-
LESS-GO* card with you and lock the vehi-
cle. Do not leave children unattended in the
vehicle, or with access to an unlocked vehi-
cle. Children could release the parking
brake, which could result in an accident
and/or serious injury.
Page 48 of 384

48 Getting startedDriving
Problems while driving
The engine runs erratically and misfires
An ignition cable may be damaged.
The engine electronics may not be op-
erating properly.
Unburned gasoline may have entered
the catalytic converter and damaged it.
Give very little gas.
Have the problem repaired by an au-
thorized Mercedes-Benz Center as
soon as possible.
The coolant temperature is over 248°F
(120°C)
The coolant is too hot and is no longer
cooling the engine.
Stop the vehicle as soon as possible
and turn off the engine. Allow engine
and coolant to cool.
Check the coolant level and add cool-
ant if necessary (
page 242).In case of accident
If the vehicle is leaking gasoline:
Do not start the engine under any cir-
cumstances.
Notify local fire and / or police authori-
ties.
If the extent of the damage cannot be de-
termined:
Notify an authorized Mercedes-Benz
Center.
If no damage can be determined on the
major assemblies
fuel system
engine mount
Start the engine in the usual manner.
!If leaves, snow, etc. block the wind-
shield wipers, switch off the wipers.
For safety reasons, withdraw key
from starter switch. Remove block-
age.
Turn the windshield wipers on
again.
If windshield wipers fail to function at
all in switch positionI:
Set the combination switch to the
next highest wiper speed.
Have the windshield wipers
checked at the nearest authorized
Mercedes-Benz Center.
Page 49 of 384

49 Getting started
Parking and locking
Parking and locking
You have now completed your first drive.
You have properly stopped and parked
your vehicle. End your drive as follows:Warning!
G
Wait until the vehicle is stationary before re-
moving the key from the starter switch. The
vehicle cannot be steered when the key is
removed.Warning!
G
With the engine not running, there is no
power assistance for the brake and steering
systems. In this case, it is important to keep
in mind that a considerably higher degree of
effort is necessary to brake or steer the ve-
hicle.
Warning!
G
Do not park this vehicle in areas where com-
bustible materials such as grass, hay or
leaves can come into contact with the hot
exhaust system, as these materials could be
ignited and cause a vehicle fire.
To reduce the risk of personal injury as a re-
sult of inadvertent vehicle movement, be-
fore turning off the engine and leaving the
vehicle always:
Keep right foot firmly on brake pedal.
Firmly depress parking brake pedal.
Move the selector lever to positionP.
Slowly release brake pedal.
When parked on an incline, turn front
wheels towards the road curb.
Turn the key to starter switch position0
and remove, or press start / stop button
(vehicles with KEYLESS-GO*).
Take the key or the KEYLESS-GO* card
and lock vehicle when leaving.
Page 50 of 384

50 Getting startedParking and lockingParking brake
1Parking brake
2Release handle
Step firmly on parking brake1.
When the engine is running, the indica-
tor lamp
;
(USA only) or
3
(Can-
ada only) in the instrument cluster will
be illuminated.
Switching off headlamps
Turn the exterior lamp switch to
M
(
page 46).
More information can be found in the
“Controls in detail” section (
page 108).
Warning!
G
When leaving the vehicle, always remove the
key from the starter switch, take the KEY-
LESS-GO* card with you and lock the vehi-
cle. Do not leave children unattended in the
vehicle, or with access to an unlocked vehi-
cle. Children could release the parking
brake and/or move the gear selector lever
from positionP, either of which could result
in an accident and/or serious injury.
Warning!
G
Getting out of your vehicle with the selector
lever not fully engaged in positionP is dan-
gerous. Also, when parked on an incline,
positionP alone may not prevent your vehi-
cle from moving, possibly hitting people or
objects.
Always set the parking brake in addition to
shifting to positionP (
page 43).
When parked on an incline, turn front wheels
towards the road curb.