Page 91 of 474
89 Safety and Security
Anti-theft systems
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.Arming tow-away alarm
Lock your vehicle.
The tow-away alarm is automatically
armed after about 30 seconds.Disarming tow-away alarm
To prevent triggering the tow-away alarm,
switch off the tow-away alarm feature be-
fore towing the vehicle, or when parking on
a surface subject to movement, such as a
ferry or auto train.
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
30 seconds, a call to the Response
Center is initiated automatically by the
by the Tele Aid system (
page 255)
provided Tele Aid service was sub-
scribed to and properly activated and
that necessary cellular service and GPS
coverage are available.
Page 92 of 474
90 Safety and SecurityAnti-theft systemsThe button is located on the upper part of
the front center console.
1Indicator lamp
2Tow-away alarm off button
Switch off the ignition and remove the
SmartKey from the starter switch.
Press button2.
The indicator lamp1 in the button
comes on briefly.
Exit the vehicle and lock it with the
SmartKey or (vehicles with
KEYLESS-GO*) the lock button at each
outside door handle or trunk lid.
iYou cannot disarm the tow-away alarm
if the ignition is switched on.
iWhen you unlock your vehicle, the
tow-away protection disarms automati-
cally.
The tow-away alarm remains disarmed
until you lock your vehicle again.
Page 114 of 474

112 Controls in detailLocking and unlockingPower closing assist for doors and trunk lid
It is not necessary to slam the door or
trunk lid closed. A pneumatic power-as-
sisted mechanism draws doors and trunk
lid closed quietly and automatically once
door and trunk lid has been latched. When
the pneumatic power-assisted mechanism
has stopped, doors and/or trunk can be
re-opened.Power closing assist for doors
Press the doors gently past the initial
engage position into the lock.
The doors close automatically.
Power closing assist for trunk lid
Press the trunk lid gently into its lock.
The trunk closes automatically.
Automatic central locking
The doors and the trunk automatically lock
when the ignition is switched on and the
wheels are turning at vehicle speeds of ap-
proximately 9 mph (15 km/h) or more.
You can open a locked door from the in-
side. Open door only when conditions are
safe to do so.
You can deactivate the automatic locking
using the control system (
page 168).
Warning!
G
To prevent possible personal injury, always
keep hands and fingers away from the door
or trunk opening when closing a door or the
trunk lid. Be especially careful when small
children are around.
In case of danger, pull the inside or outside
door handle, or press the trunk lid lock.
To prevent personal injury, never actuate
the closing assist mechanism by tampering
with the door or trunk lid latch.
Warning!
G
Only drive with the doors closed. Otherwise,
one or more of the doors could open while
the vehicle is in motion, putting you and/or
others at risk.Warning!
G
Only drive with the trunk closed as, among
other dangers such as visibility blockage,
exhaust fumes may enter the vehicle interi-
or.
iThe doors unlock automatically after an
accident if the force of the impact ex-
ceeds a preset threshold. The vehicle
locks automatically when the ignition is
switched on and the wheels are turning
at vehicle speeds of approximately
9 mph (15 km/h) or more. You could
therefore lock yourself out when the
vehicle
is pushed or towed
is on a test stand
Page 179 of 474

177 Controls in detail
Automatic transmission
Gear selector lever position
Effect
ì
Park position
Gear selector lever position
when the vehicle is parked. Place
gear selector lever in positionP
only when vehicle is stopped.
The park position is not intended
to serve as a brake when the
vehicle is parked. Rather, the
driver should always set the
parking brake in addition to
placing the gear selector lever in
positionP to secure the vehicle.
EffectThe SmartKey can only be
removed from the starter switch
with the gear selector lever in
positionP. With the SmartKey
removed, the gear selector lever
is locked in positionP.
í
Reverse gear
Place gear selector lever in
positionR only when vehicle is
stopped.
Effect
ë
Neutral
No power is transmitted from the
engine to the drive axle. When
the brakes are released, the
vehicle can be moved freely
(pushed or towed).
To avoid damage to the trans-
mission, never engageN while
driving.
If the ESP is deactivated or
malfunctioning:
Move gear selector lever toN
only if the vehicle is in danger of
skidding, e.g. on icy roads.
ê
Drive
The transmission shifts
automatically. All forward gears
are available.
Page 180 of 474

178 Controls in detailAutomatic transmission
!
Coasting the vehicle, or driving for any
other reason with gear 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 gear
selector lever not fully engaged in positionP
is dangerous. Also, positionP alone is not
intended to or capable of preventing your
vehicle from moving, possibly hitting people
or objects.
Always set the parking brake in addition to
shifting to positionP (
page 48).
When parked on an incline, turn the front
wheels towards the road curb.
Do not park this vehicle in areas where
combustible 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.
Warning!
G
When leaving the vehicle, always remove the
SmartKey or SmartKey with KEYLESS-GO*
from the starter switch, take it with you, and
lock the vehicle. Do not leave children unat-
tended in the vehicle, or with access to an
unlocked vehicle. Children could move the
gear selector lever from positionP, which
could result in an accident and/or serious
personal injury.
Page 207 of 474

205 Controls in detail
Automatic climate control
To open center air vents and to adjust the
booster blower:
Turn thumbwheel3.Rear side air vents
4Rear side air vent, right and left
5Air volume control for rear side air vent
To open rear side air vents:
Turn thumbwheel5 towards the win-
dow.Rear passenger compartment climate
control*
The automatic climate control is operation-
al whenever the engine is running. You can
operate the climate control system in ei-
ther the automatic or manual mode. The
system cools or heats the interior depend-
ing on the selected interior temperature
and the current outside temperature.
The automatic climate control system is
adjustable individually for the rear passen-
ger compartment.
The control panel is located in the rear cen-
ter console.
Nearly all dust particles, pollutants and
odors are filtered out before outside air en-
ters the passenger compartment through
the air distribution system.
iThe booster blower allows air volume
speed to the rear passenger compart-
ment to be increased at four different
levels.
The temperature at the air vents for
rear passenger compartment1
and2 is the same as at the dashboard
center air vents.
Page 227 of 474

225 Controls in detail
Driving systems
The distance warning function on/off but-
ton and thumbwheel for setting distance
are located on the lower part of the front
center console.
1Distance warning function on/off but-
ton
2Thumbwheel for setting distanceIncreasing distance
Increasing the distance setting causes Dis-
tronic to maintain a greater following dis-
tance to the vehicle ahead.
Turn thumbwheel2 towards¯.
Decreasing distance
Decreasing the distance setting causes
Distronic to maintain a shorter following
distance to the vehicle ahead.
Turn thumbwheel2 towards®.Distance warning function
When Distronic is deactivated, this func-
tion will continue to warn you when recog-
nizing a stationary obstacle or a slower
vehicle moving in the vehicle’s path and
the danger of a collision exists:
The distance warning lampl in the
instrument cluster comes on.
An intermittent warning sounds.
If these warnings are issued, you must
brake manually to maintain a safe distance
and avoid a collision with the vehicle
ahead.
When pressing the brake pedal, the warn-
ing sound stops. The warning sound also
stops when the distance to the vehicle
ahead is sufficient again without applying
the brake pedal. In this case the distance
warning lampl also extinguishes.
Page 245 of 474

243 Controls in detail
Useful features
Vanity mirror in the rear
The vanity mirrors are located in the roof
lining for the rear seat passengers.
Opening the vanity mirror
Press the cover of the vanity mirror.
The vanity mirror folds down and the
mirror lamp comes on.
Closing the vanity mirror
Push the vanity mirror up until it engag-
es in place.
Storage compartments
!Before tilting a front seat backrest from
the reclined position to an upright posi-
tion, close the respective vanity mirror
in the rear. Otherwise the vanity mirror
may get damage.
Warning!
G
To help avoid personal injury during a colli-
sion or sudden maneuver, exercise care
when stowing objects in the vehicle. Put lug-
g a g e o r c a r g o i n t h e t r u n k i f p o s s i b l e . D o n o t
pile luggage or cargo higher than the seat
backs.
Luggage nets cannot secure hard or heavy
objects.
Keep compartment lids closed. This will help
to prevent stored objects from being thrown
about and injuring vehicle occupants during
an accident.