Page 93 of 417
92 Safety and SecurityAnti-theft systemsArming tow-away alarm
Lock your vehicle with the SmartKey.
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
before towing the vehicle, or when parking
on a surface subject to movement, such as
a ferry or auto train.
The button is located on the lower part of
the center console.
1Tow-away alarm off button
2Indicator lamp
Switch off the ignition and remove the
SmartKey.
Press button 1.
Indicator lamp2 in button1 comes
on briefly.
Exit and lock your vehicle with the
SmartKey.
The tow-away alarm remains disarmed
until you lock your vehicle again.
iWhen you unlock your vehicle, the
tow-away protection disarms
automatically. The tow-away alarm
remains disarmed until you lock the
vehicle again.
iYou cannot disarm the tow-away alarm
while the ignition is switched on.
Page 94 of 417
93 Safety and Security
Anti-theft systems
Canceling the alarm
To cancel the alarm:
Press theŒ or‹ button on the
SmartKey.
or
Insert the SmartKey in the starter
switch.
Page 99 of 417

98 Controls in detailLocking and unlockingFactory setting
Global unlocking
Press buttonŒ.
All turn signal lamps flash once. The
anti-theft alarm system is disarmed.
The vehicle will lock again automatically
and reactivate the anti-theft alarm system
within approximately 40 seconds of un-
locking if:
neither door nor trunk is opened
the SmartKey is not inserted in the
starter switch
the central locking switch is not
activated
Global locking
Press button‹.
With the hood, trunk and all doors
closed, all turn signal lamps flash three
times. The anti-theft alarm system is
armed.Selective setting
If you frequently travel alone, you may wish
to reprogram the SmartKey so that
pressingŒ only unlocks the driver’s
door and the fuel filler flap.
Press and hold buttonsŒ and‹
simultaneously for about five seconds
until battery check lamp5 flashes
twice.
The SmartKey will then function as
follows:
Unlocking driver’s door and fuel filler
flap
Press buttonŒ once.
All turn signal lamps flash once. The
anti-theft alarm system is disarmed.Global unlocking
Press buttonŒ twice.
All turn signal lamps flash once. The
anti-theft alarm system is disarmed.
Global locking
Press button‹.
With the hood, trunk and all doors
closed, all turn signal lamps flash three
times. The anti-theft alarm system is
armed.
Page 101 of 417

100 Controls in detailLocking and unlockingLoss of SmartKey or mechanical key
If you lose a SmartKey or mechanical key,
you should do the following:
Have the SmartKey deactivated by an
authorized Mercedes-Benz Center.
Report the loss of the SmartKey or the
mechanical key immediately to your
car insurance company.
If necessary, have the trunk lock
replaced.
Your authorized Mercedes-Benz Center
will be glad to supply you with a replace-
ment.
Opening the doors
Opening from the outside
For information on opening the doors from
the outside, see “Getting started”
(page 38).Opening from the inside
You can open a locked door from the in-
side. Open the door only if the vehicle is
stationary and when conditions are safe to
do so.
1Inside door handle
Pull on door handle1.
The door swings outwards and up-
wards automatically.!Ensure sufficient side- and overhead
clearance prior to opening the doors,
see “Main dimensions” (
page 373).
iIf the vehicle has previously been
locked from the outside with the
SmartKey, opening a door from the
inside will trigger the anti-theft alarm
system.
To cancel the alarm, do one of the
following:
Press buttonŒ or‹ on the
SmartKey.
Insert the SmartKey in the starter
switch.
Page 104 of 417

103 Controls in detail
Locking and unlocking
Illumination of the emergency release
button:
The button will flash for 30 minutes
after opening the trunk.
The button will flash for 60 minutes
after closing the trunk.
Automatic locking
The doors and the trunk lid lock automati-
cally when the vehicle is set into motion.
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 135).
Locking and unlocking from the inside
You can lock or unlock the vehicle from in-
side using the central locking switches.
This can be useful, for example, if you want
to unlock the passenger door from the in-
side or want to lock the vehicle before
starting to drive.
The central locking switch does not lock or
unlock the fuel filler flap.
iThe emergency release button does
not open the trunk lid if the vehicle
battery is discharged or disconnected.
If the vehicle has previously been
locked from the outside with the
SmartKey, opening the trunk from the
inside using the emergency release
button will trigger the anti-theft alarm
system.
To cancel the alarm, do one of the
following:
Press buttonŒ or‹ on the
SmartKey.
Insert the SmartKey in the starter
switch.
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
is on a test stand
Warning!
G
When leaving the vehicle, always remove the
SmartKey from the starter switch, take it
with you, and lock the vehicle. Do not leave
children unattended in the vehicle, or with
access to an unlocked vehicle. Unsuper-
vised use of vehicle equipment may cause
an accident and/or serious personal injury.
Page 216 of 417

215 Controls in detail
Useful features
Stolen Vehicle Recovery services
In the event your vehicle was stolen:
Report the incident to the police
The police will issue a numbered inci-
dent report.
Pass this number on to the
Mercedes-Benz Response Center along
with your password issued to you when
you subscribed to the service.
The Response Center will then attempt
to covertly contact the vehicle’s Tele
Aid system. Once the vehicle is locat-
ed, the Response Center will contact
the local law enforcement and you. The
vehicle’s location will only be provided
to law enforcement.
Garage door opener
The built-in remote control is capable of
operating up to three separately controlled
devices, for example garage door openers,
gate openers, or other devices compatible
with HomeLink
® or some other systems.
You can program the signal transmitter
buttons.
Remote control integrated into the interior
rear view mirror1Indicator lamp
2 3 4Signal transmitter button
5Hand-held transmitter button
6Hand-held remote control
transmitter (not part of the
vehicle equipment)
iWhen the anti-theft alarm or the
tow-away alarm stays on for more than
30 seconds, a call is initiated automat-
ically to the Response Center. See
anti-theft alarm system (
page 90)
and tow-away alarm (
page 91).
Page 343 of 417
342 Practical hintsLocking/unlocking in an emergencyUnlocking the vehicle
Unlocking the trunk
If you are unable to unlock the trunk with
the SmartKey, open the trunk with the
mechanical key.
The handle is located above the rear
license plate recess.1Mechanical key locking tab
2Mechanical key
Move locking tab1 in the direction of
arrow.
Slide mechanical key2 out of the
housing.
Trunk lid lock3Unlocking
Insert the mechanical key in the trunk
lid lock.
Perform the following two steps simul-
taneously:
Turn the mechanical key
counterclockwise to the stop, to
position3.
Pull the trunk lid handle and lift the
trunk lid.
iUnlocking the trunk with the mechani-
cal key will trigger the anti-theft alarm
system when the door is opened.
To cancel the alarm, insert the
SmartKey in the starter switch.
Page 344 of 417
343 Practical hints
Locking/unlocking in an emergency
Unlocking the driver’s door
If you can no longer lock or unlock the
doors using the SmartKey, unlock the driv-
er’s door using the emergency release
catch.The emergency release catch is located on
the left side in the trunk.
1Emergency release catch
Unlock the trunk (
page 342).
Pull emergency release catch1.
The door is unlocked.
Open the door in the normal way.
Notify an authorized Mercedes-Benz
Center.
iUnlocking the driver’s door with the
emergency release catch will trigger
the anti-theft alarm system.
To cancel the alarm, insert the
SmartKey in the starter switch.
iIf it still is not possible to unlock the
door, pull more firmly on the emergen-
cy release catch.