Page 31 of 434

30 Getting startedUnlocking
The “Getting started” section provides an
overview of the vehicle’s most basic func-
tions. First-time Mercedes-Benz owners
should pay special attention to the infor-
mation given here.
If you are already familiar with the basic
functions described here, the “Controls in
detail” section will provide you with further
information. The corresponding page refer-
ences are located at the end of each seg-
ment.
Unlocking
Unlocking with the SmartKeySmartKey with remote control1‹Lock button
2ŠUnlock button for trunk lid
3ŒUnlock button
4ÂPanic button
Press unlock button Œ on the
SmartKey.
All turn signal lamps flash once. The
locking knobs in the doors move up.
The SBC brake system is activated.
Enter the vehicle and insert the
SmartKey in the starter switch.
For more information, see “Locking and
unlocking” (
page 90).
iOpening a door causes the windows on
that side of the car to open slightly.
They will return to the up-position when
the door is closed.
Page 32 of 434

31 Getting started
Unlocking
Starter switch positionsStarter switch0For removing SmartKey
1Power supply to some electrical con-
sumers, such as seat adjustment
2Ignition (power supply for all electrical
consumers) and driving position
3Starting position
Warning!
G
When leaving the vehicle, always remove the
SmartKey from the starter switch, take the
SmartKey with KEYLESS-GO* with you and
lock the vehicle. 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.iThe SmartKey can only be removed
from the starter switch with the gear
selector lever in position P.
!If the SmartKey cannot be turned in the
starter switch, the starter battery may
not be sufficiently charged.
Check the starter battery and
charge it if necessary (
page 358).
Get a jump start (
page 363).
To prevent accelerated battery dis-
charge or a completely discharged bat-
tery, always remove the SmartKey from
the starter switch when the engine is
not in operation.
Page 33 of 434

32 Getting startedUnlockingUnlocking with KEYLESS-GO*
If your vehicle is equipped with the
KEYLESS-GO function, your vehicle checks
whether the SmartKey with KEYLESS-GO is
valid when you grasp the door handle. If
your SmartKey with KEYLESS-GO is valid,
the doors will unlock and you can open
them.
The function of the SmartKey overrules the
KEYLESS-GO function.
Grasp the door handle.
The turn signal lamps flash once. The
locking knobs on the doors move up.
The SBC brake system is activated.
If the SmartKey with KEYLESS-GO is inside
the vehicle, pressing the KEYLESS-GO
start/stop button on the gear selector le-
ver corresponds to turning the SmartKey
to the various starter switch positions.iTo unlock the vehicle, the SmartKey
with KEYLESS-GO must be outside the
vehicle, no further than approx. 3 feet
(1 meter) away from the door.
Warning!
G
When leaving the vehicle, always remove the
SmartKey from the starter switch, take the
SmartKey with KEYLESS-GO* with you and
lock the vehicle. 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 34 of 434

33 Getting started
Unlocking
1KEYLESS-GO start/stop button
Before you press the KEYLESS-GO
start/stop button, the vehicle’s on-board
electronics have the status0 (as with
SmartKey removed).
The SmartKey with KEYLESS-GO must be
located in the vehicle.
Make sure the gear selector lever is set
toP.
Do not depress the brake pedal.Position 1
Press the KEYLESS-GO start/stop but-
ton once.
This supplies power to some electrical
consumers, such as seat adjustment.Ignition (or Position 2)
Press the KEYLESS-GO start/stop but-
ton twice.
This supplies power to all electrical
consumers. All lamps in the instrument
cluster come on.
For more information, see “SmartKey with
KEYLESS-GO*” (
page 93).
For information on starting the engine us-
ing the KEYLESS-GO start/stop button,
see “Starting with KEYLESS-GO*”
(
page 44).
iIf you now press the KEYLESS-GO
start/stop button
once again, the ignition (position2)
is switched on
twice, the power supply is again
switched off
iIf you now press the KEYLESS-GO
start/stop button once, the power sup-
ply is again switched off.
Page 35 of 434

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
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 backrest 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 40).
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 from the starter switch, take the
SmartKey with KEYLESS-GO* with you, and
lock your vehicle.
Even with the SmartKey removed from the
starter 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.
Page 38 of 434

37 Getting started
Adjusting
Steering wheel Steering wheel adjustment
The stalk for steering wheel adjustment is
located on the lower left of the steering
column.
1Adjusting steering column, in or out
2Adjusting steering column, up or down
Switch on ignition
or
Open the driver’s door.Adjusting steering column in or out
Move stalk forward or back in the direc-
tion of arrow1 until a comfortable
steering wheel position is reached with
your arms slightly bent at the elbow.
Adjusting steering column up or down
Move stalk up or down in the direction
of arrow2.
Make sure your legs can move freely
and that you have a good view on all
the displays (including malfunction and
indicator lamps) on the instrument
cluster.
For more information, see “Heated steer-
ing wheel* (SL 500, SL 600)”
(
page 220).
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
SmartKey from the starter switch, take the
SmartKey with KEYLESS-GO
* with you and
lock your vehicle.
Even with the SmartKey removed from the
starter switch or the SmartKey with
KEYLESS-GO* removed from the vehicle,
the steering wheel adjustment feature can
be operated when the driver’s door is open.
Therefore, 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.
iThe memory function (
page 114) lets
you store the setting for the steering
wheel together with the settings for the
seat position and the rear view mirrors.
Page 44 of 434

43 Getting started
Driving
Starting the engine Automatic transmission
Gearshift pattern for automatic
transmissionP Park position with gear selector lever
lock
R Reverse gear
N Neutral
D Drive position
For more information, see “Automatic
transmission” (
page 155).Starting with the SmartKey
Make sure the gear selector lever is set
to P.
Do not depress the accelerator.
Turn the SmartKey in the starter switch
to position3 and hold until the engine
starts (
page 31).
Depress the brake pedal.
The gear selector lever lock is released.
For information on turning off the engine
with the SmartKey, see “Turning off with
the SmartKey” (
page 53).
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 a garage) which are not properly
ventilated. If you think that exhaust gas
fumes are entering the vehicle while driving,
have the cause determined and corrected
immediately. If you must drive under these
conditions, drive with at least one window
fully open.
iYou can also use the “touch-start”
function. Turn the SmartKey to
position3 and release it again immedi-
ately. The engine then starts automati-
cally.
Page 45 of 434

44 Getting startedDrivingStarting with KEYLESS-GO*
You can start your vehicle without the
SmartKey in the starter switch using the
KEYLESS-GO start/stop button on the
gear selector lever.
1KEYLESS-GO start/stop button
Make sure the gear selector lever is set
to P.
Depress the brake pedal during the
starting procedure. Do not depress ac-
celerator.
The selector lever lock is released.
Press KEYLESS-GO start/stop
button1 once.
The engine starts automatically if the
SmartKey with KEYLESS-GO is in the
vehicle.
For information on turning off the engine
with KEYLESS-GO, see “Turning off with
KEYLESS-GO*” (
page 54).
Starting difficulties
If the engine does not start as described,
carry out the following steps:
If you are starting the engine with the
SmartKey: Turn SmartKey in starter
switch to position0 and repeat starting
procedure.
If you are starting the engine with
KEYLESS-GO*: Close any doors that
may be open to allow for better detec-
tion of the SmartKey with
KEYLESS-GO.
Or:
Start the engine with the SmartKey as
radio signals from another source may
be interfering with the SmartKey with
KEYLESS-GO*.
Repeat the starting procedure
(page 43). Remember that extended
starting attempts can drain the battery.
Get a jump start (
page 363).
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.