Page 31 of 356

31
Getting started
Unlocking
Starter switch positionsStarter switch0
For removing key
The steering is locked when the key is
removed from the starter switch. If
necessary, move steering wheel slight-
ly to allow the locking mechanism to
engage.
1 Power supply to some electrical con-
sumers, such as seat adjustment
2 Ignition (power supply for all electrical
consumers) and driving position
3 Starting position
Warning!
G
When leaving the vehicle, always remove the
SmartKey from the starter switch and lock
the vehicle. Do not leave children unattend-
ed in the vehicle, or with access to an un-
locked vehicle. Unsupervised use of vehicle
equipment may cause an accident and/or
serious personal injury.iVehicles with automatic transmission:
The SmartKey can only be removed
from the starter switch with the gear
selector lever in position P.
!If the key is left in the starter switch
position 0 for an extended period of
time, it can no longer be turned in the
starter switch.
Remove the key from the starter
switch and reinsert.
If the key can still not be turned, the
battery may not be sufficiently
charged.
Check the battery and charge it if
necessary (
page 294).
Get a jump start (
page 297).
To prevent accelerated battery dis-
charge and a possible dead battery, al-
ways remove the key from the starter
switch.
Page 32 of 356

32 Getting startedAdjusting
AdjustingSeats
The seats can be adjusted either manually
or electrically, depending on the vehicle’s
equipment.Warning!
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 excessively 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
serious 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 cor-
rectly fasten your seat belt (
page 41).
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 and lock your ve-
hicle.
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 passenger side front
airbag when it is properly installed. Other-
wise they will be struck by the airbag when
it inflates 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 36 of 356

36 Getting startedAdjustingFolding backrest forward
Pull release lever1 forward and tilt the
seat backrest forward.
Vehicles with manual seat adjustment:
If necessary, press the head restraint
downward while tilting the backrest
forward. Folding backrest back
Fold and press the backrest rearward
until it engages in driving position.
Vehicles with manual seat adjustment:
If necessary, pull the head restraint out
while tilting the seat back.
More information can be found in the
“Controls in detail” section (
page 89). Rear seat head restraints
1 Lock button
iVehicles with power seat*: The head
restraints will automatically move
down.
iVehicles with power seat*: The head
restraint returns to its previous posi-
tions.
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.
Page 37 of 356

37
Getting started
Adjusting
Folding head restraints back
Push lock button
1.
The head restraints will fold backward.
Placing head restraint upright
Pull the head restraint forward until it
locks into position.
Two different head restraint angle posi-
tions are available.
Head restraint height
1 Release knob Raising:
Pull up on head restraint.
If the head restraint is fully retracted,
press release knob
1 and pull the head
restraint out.
Lowering:
Push button 1.
Push down on head restraint.
Steering wheel
Warning!
G
For your protection, drive only with properly
positioned head restraints.
Adjust head restraint to support the back of
the head approximately at ear level.
Do not drive the vehicle without the seat
head restraints. Head restraints are intend-
ed to help reduce injuries during an acci-
dent.
Warning!
G
Do not adjust the steering wheel while driv-
ing. Adjusting the steering wheel while driv-
ing, or driving without the adjustment
locked could cause the driver to lose control
of the vehicle.
When leaving the vehicle, always remove the
key from the starter switch and lock your ve-
hicle.
The electrical steering wheel adjustment
feature* can also be operated with the driv-
er’s door open. Do not leave children unat-
tended in the vehicle, or with access to an
unlocked vehicle. Unsupervised use of vehi-
cle equipment may cause an accident
and/or serious personal injury.
Page 38 of 356
38 Getting startedAdjustingSteering wheel adjustment, manual1 Release handle
To unlock the steering column, pull
handle 1 out until its stop limit.
Adjust the steering wheel to the de-
sired position.
To lock, press handle 1 all the way in
until it engages.
The steering wheel is once again
locked into position. Steering wheel adjustment, electrical*
Turn the key in the
starter switch to
position 1 or 2.
or
Open the driver’s door.
The switch is located on the steering col-
umn (lower left).
1 Steering column, lengthen or shorten
2 Steering column, height
!Do not drive the vehicle until you have
properly locked the steering column.
If the warning message
STEERING
WHEEL ADJUST - LOCK! is displayed
while the engine is running, the steer-
ing column is not locked (page 268).
Page 44 of 356

44 Getting startedDriving
Ensure that the seat belt is always fit-
ted snugly. You should avoid wearing
bulky clothing, such as winter coats,
when traveling in the vehicle.
Starting the engineManual transmission
Gearshift pattern for manual transmission
Make sure that the gearshift lever is in
Neutral position.
Do not depress accelerator.
Fully depress clutch pedal.
Otherwise the engine cannot be start-
ed due to the integrated safety inter-
lock.
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.
Damaged seat belts or belts that were highly
stressed in an accident must be replaced by
an authorized Mercedes-Benz Center.
Warning!
G
Inhalation of exhaust gas is hazardous to
your health. All exhaust gas contains carbon
monoxide, and inhaling it can cause uncon-
sciousness and lead to death.
Do not run the engine in confined areas
(such as garage) which are not properly ven-
tilated. If you think that exhaust gas fumes
are entering the vehicle while driving, have
the cause determined and corrected imme-
diately. If you must drive under these condi-
tions, drive only with at least one window
fully open.
Page 45 of 356

45
Getting started
Driving
Turn the key in the starter switch to
position
3. Release only when the en-
gine is firing regularly (
page 31).
More information can be found in the
“Controls in detail” section (page 130).
Automatic transmission*
Gearshift pattern for automatic
transmissionP Park position with selector lever lock
R Reverse gear
N Neutral
D Drive position
Make sure that the gear selector lever
is set to P.
Do not depress accelerator.
Starting
Turn the key in the starter switch to
position 3 and hold until the engine
starts (
page 31).
Depress the brake pedal.
The selector lever lock is released.
For information on turning off the engine
with the key see “Turning off the engine”
(
page 52) Starting difficulties
If the engine does not start as described,
carry out the following steps:
Turn key in starter to position
0 and re-
peat starting procedure.
Remember that extended starting at-
tempts can drain the battery
Get a jump start (
page 297).
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.
iYou can also use the “touch-start”
function. Turn the key to position 3 and
release it again immediately. The en-
gine then starts automatically.
Page 46 of 356

46 Getting startedDrivingParking brake 1 Release handle
2 Parking brake
Release the parking brake by pulling on
handle 1.
The indicator lamp
;
(USA only) or
3
(Canada only) in the instrument
cluster goes out.
Driving
Depress the brake pedal.
Move selector lever to position D or R
(manual transmission: first or reverse
gear).
Release the brake pedal.
Carefully depress the accelerator
pedal.
Once the vehicle is in motion, the auto-
matic central locking system engages
and the locking knobs drop down. After a cold start, the automatic transmis-
sion engages at a higher revolution. This al-
lows the catalytic converter to reach its
operating temperature earlier.
Warning!
G
When leaving the vehicle, always remove the
key from the starter switch and lock the ve-
hicle. Do not leave children unattended in
the vehicle, or with access to an unlocked
vehicle. Children could release the parking
brake, which could result in an accident
and/or serious injury.
iYou can open a locked door from the
inside. Open door only when conditions
are safe to do so.
!If you hear a warning signal when driv-
ing off, you have forgotten to release
the parking brake.
Release the parking brake.!Simultaneously depressing the acceler-
ator pedal and applying the brake re-
duces engine performance and causes
premature brake and drivetrain wear.iVehicles with automatic transmission:
Wait for the gear selection process to
complete before setting the vehicle in
motion.