Page 82 of 399

82 Safety and SecurityAnti-theft systemsAnti-theft alarm system
Once the alarm system has been armed, a
visual and audible alarm is triggered when
someone opens
a door
the trunk
the hood.
The alarm system will also be triggered
when
someone attempts to raise the vehicle
the vehicle is opened with the mechan-
ical keyArming the alarm system
The alarm system is armed within approx.
10 seconds after locking the vehicle. The
indicator lamp in the button for the
tow-away alarm will then blink.
Disarming the alarm system
The alarm system is disarmed when you
unlock your vehicle with the remote con-
trol or KEYLESS-GO*.
Canceling the alarm
With the key
Insert the key in the starter switch.
or
Press the Œ or ‹ button on the
key.With KEYLESS-GO*
Grasp the outside door handle.
or
Press the KEYLESS-GO* start/stop
button.
Tow-away alarm
Once the tow-away alarm is armed, a visual
and audible alarm will be triggered when
someone attempts to raise the vehicle.
iIf the alarm stays on for more than
20 seconds, an emergency call is initi-
ated automatically by the Tele Aid sys-
tem* (
page 234), provided that the
Tele Aid service was subscribed to and
properly activated.
iThe tow-away protection alarm is trig-
gered, for example, if the vehicle is lift-
ed on one side.
If the alarm stays on for more than
20 seconds, an emergency call is initi-
ated automatically by the Tele Aid sys-
tem* (
page 234), provided that the
Tele Aid service was subscribed to and
properly activated, and that necessary
cellular service and GPS coverage are
available.
Page 90 of 399

90 Controls in detailLocking and unlocking
Important notes on using KEYLESS-GO
You can also use the SmartKey with
KEYLESS-GO like a normal key
(page 86).
You can combine KEYLESS-GO func-
tions with normal key functions (e.g.
unlocking with KEYLESS-GO and lock-
ing with the remote control).
Always carry the SmartKey with
KEYLESS-GO with you.
Never store the SmartKey with
KEYLESS-GO together with:
Electronic items such as a cellular
phone or another SmartKey with
KEYLESS-GO
Metallic objects such as coins or
metal foil
Doing so could impair the function of
the KEYLESS-GO system.
To lock or unlock the vehicle, the key
must be located outside the vehicle
within approximately 3 ft. (1 m) of a
door or the trunk.
In order to start the engine with the
SmartKey with KEYLESS-GO:
The SmartKey with KEYLESS-GO
must be located in the vehicle.
All the doors must be closed.
If you have started the engine with the
KEYLESS-GO start/stop button, you
can only turn it off again with this but-
ton, even if you have put the key in the
starter switch in the meantime.
This does not apply if, after starting, the
selector lever is still in positionP. The
SmartKey will then have priority over
the KEYLESS-GO function and the vehi-
cle’s electrical system will operate ac-
cording to the position of the key in the
starter switch, even stopping the en-
gine.
If the SmartKey with KEYLESS-GO is
positioned farther away from the vehi-
cle (e.g. inside clothing or briefcase)
and can no longer be recognized by the
Warning!
G
When leaving the vehicle always remove the
key from the starter switch, take the Smart-
Key with KEYLESS-GO (if so equipped) with
you and lock the vehicle. Do not leave chil-
dren unattended in the vehicle, or with ac-
cess to an unlocked vehicle. Unsupervised
use of vehicle equipment may cause serious
personal injury.!To prevent possible malfunction, avoid
exposing the SmartKey with
KEYLESS-GO to high levels of electro-
magnetic radiation.
Page 110 of 399

110 Controls in detailMemory functionThe memory button is located on the door.
MMemory button
1,2,3Stored positions
Be sure that the ignition is switched on
or the relevant door is open and the
SmartKey is inserted in the starter
switch.
Storing positions into memory
Adjust the seats, steering wheel and
rear view mirrors to the desired posi-
tion (
page 34).
Press memory buttonM.
Release memory button and press
stored position button 1, 2 or 3 within
three seconds.
All the settings are stored at the select-
ed position.
Recalling positions from memory
On memory button, press and hold
stored position button1, 2 or3 until
the seat, steering wheel and rear view
mirrors have fully moved to the stored
positions.iReleasing the button immediately
stops movement to the stored posi-
tions.Warning!
G
Do not operate the power seats using the
memory button if the backrest is in an ex-
cessively reclined position. Doing so could
cause damage to front or rear seats.
First move backrest to an upright position.
Page 112 of 399

112 Controls in detailLighting
LightingFor notes on how to switch on the head-
lamps and use the turn signals, see the
"Getting started" section (
page 46).
Exterior lamp switch
The exterior lamp switch is located on the
dashboard to the left of the steering wheel.MOff
UAutomatic headlamp mode
CParking lamps (also side marker
lamps, tail lamps, license plate
lamps, instrument panel lamps)
Canada only:
When engine is running, the low
beam is also switched on.
BParking lamps plus low beam or
high beam headlamps (combination
switch pushed forward).
ˆStanding lamps, right (turn left one
stop)
‚Standing lamps, left (turn left two
stops)
iIf you remove the key and open the
driver’s door while the parking lamps or
low beam headlamps are switched on,
then
a warning sounds
$ appears in the multifunction
display
the message
Turn off lamps!
ap-
pears in the multifunction display
iWith the daytime running lamp mode
activated and the engine running, the
low beam headlamps cannot be
switched off manually.
Page 141 of 399

141 Controls in detail
Control system
Move the selection marker with
theæ orç button to the
Light-
ing
submenu.
Press buttonj ork repeatedly
until you see this message in the dis-
play:
Headlamps delayed shut-off
.
The selection marker is on the current
setting.
Pressæ orç to select the de-
sired lamp-on period.
You can select:
0 s
, the delayed switch-off feature
is deactivated.
15 s
, 30 s
, 45 s
or
60 s
, the delayed
switch-off feature is activated.
Turn the exterior lamp switch to posi-
tion U.You can temporarily deactivate the de-
layed switch-off feature:
Before leaving the vehicle, turn the key
in the starter switch to position0.
Then turn it to position2 and back
to0.
The delayed switch-off feature is deac-
tivated. It will reactivate as soon as you
reinsert the key in the starter switch.
For vehicles with KEYLESS-GO*:
Press the KEYLESS-GO start/stop but-
ton on the gear selector lever
(page 33).Interior lighting delayed switch-off
Use this function to set whether and for
how long you would like the interior light-
ing to remain lit during darkness after the
key is removed from the starter switch.
Move the selection marker with
theæ orç button to the
Light-
ing
submenu.
Press buttonj ork repeatedly
until you see this message in the dis-
play:
Interior lamp delayed
shut-off
.
The selection marker is on the current
setting.
Page 154 of 399

154 Controls in detailAutomatic transmissionGear selector lever position
Effect
P
Park position
Selector position when the vehicle
is parked. Only place selector lever
in positionP when vehicle is
stopped. The park position is not in-
tended to serve as a brake when
the vehicle is parked. Rather, the
driver should always set the park-
ing brake in addition to placing the
selector lever in positionP to se-
cure the vehicle.
The key can only be removed from
the starter switch with the selector
lever in positionP. With the key re-
moved the selector lever is locked
in positionP.
Effect
R
Reverse gear
Place selector lever in positionR only
when vehicle is stopped.
N
Neutral
No power is transmitted from the en-
gine to the drive axle. When the
brakes are released, the vehicle can
be moved freely (pushed or towed).
To avoid damage to the transmission,
never engageN while driving.
If the ESP is deactivated or malfunc-
tioning:
Only move selector lever toN if the
vehicle is in danger of skidding (e.g.
on icy roads).
D
Drive
The transmission shifts automatical-
ly. All five forward gears are avail-
able.
!Coasting the vehicle, or driving for any
other reason with selector lever inN
can result in transmission damage that
is not covered by the Mercedes-Benz
Limited Warranty.Warning!
G
Getting out of your vehicle with the selector
lever not fully engaged in positionP is dan-
gerous. Also, positionP alone is not intend-
ed to or capable of preventing your vehicle
from moving, possibly hitting people or ob-
jects.
Always set the parking brake in addition to
shifting to positionP (
page 45).
When parked on an incline, turn the front
wheels towards the road curb.
Page 156 of 399
156 Controls in detailAutomatic transmissionAccelerator position
Your driving style influences the transmis-
sion’s shifting behavior:
Less throttle Earlier upshifting
More throttle Later upshiftingKickdown
Use kickdown when you want maximum
acceleration.
Press the accelerator past the point of
resistance.
The transmission shifts into a lower
gear.
Ease on the accelerator when you have
reached the desired speed.
The transmission shifts up again.Emergency operation (Limp home
mode)
If vehicle acceleration worsens or the
transmission no longer shifts, the trans-
mission is most likely operating in limp
home (emergency operation) mode. In this
mode, only 2nd gear and reverse gear can
be activated.
Stop the vehicle.
Move selector lever toP.
Turn off the engine.
Wait at least ten seconds before re-
starting.
Restart the engine.
Move selector lever to positionD (for
2nd gear) orR.
Have the transmission checked at an
authorized Mercedes-Benz Center as
soon as possible.
Page 160 of 399

160 Controls in detailGood visibility
Rear window sunshade*
The switch is located in the center console.
Turn the key to starter switch position
1 or 2. Vehicles with KEYLESS-GO*:
press the start/stop button once or
twice.
Press the switch briefly at 1 to raise the
sunshade.
Press the switch briefly at 1 to lower
the sunshade.
Always raise the sunshade fully for its sup-
port against the window frame.
iIf sunlight enters through a side win-
dow, disengage sun visor from
mounting1 and pivot to the side.
Mirror lamp3 will switch off.
Warning!
G
When operating the rear window sunshade,
be sure that there is no danger of anyone be-
ing harmed by the raising or lowering proce-
dure.
The raising or lowering procedure can be im-
mediately halted by briefly pressing the up-
per or lower half of the switch.
Briefly press upper or lower half of the
switch again to raise or lower the rear win-
dow sunshade completely.Warning!
G
When leaving the vehicle, always remove the
SmartKey from starter switch, and lock your
vehicle. Do not leave children unattended in
the vehicle, or with access to an unlocked
vehicle. Unsupervised use of vehicle equip-
ment can cause serious personal injury.