Page 56 of 430

53 Central locking system
Te ch n i c a l
data Instruments
and controlsOperationDrivingInstrument
cluster displayPractical hints Car care Index Vehicles with trunk lid opening / closing system:
Press trunk lid button (2) briefly. The trunk lid closes
automatically.
The trunk lid can also be closed with the trunk lid
opening / closing switch located on the driver’s door, see
page 56.Notes:
The automatic closing process is interrupted if the
trunk lid is pushed against an object. The trunk lid will
reverse slightly and stop. In its final closing stage the
hydraulic power closing assist mechanism releases the
trunk lid which then drops into the lock by its own
weight. Now the trunk lid will stop but not reverse
slightly.
Investigate and correct the cause of interruption.
Now press trunk lid button (2) again to close the trunk
lid.
P54.25-2403-26
Wa r n i n g !
To prevent possible personal injury, always keep
hands and fingers away from the trunk opening
when closing the trunk lid. Be especially careful
when small children are around.Always be sure persons who might get injured are
away from the trunk area when you operate the
trunk closing button located on the vehicle door.To interrupt the hydraulic power closing assist
mechanism press trunk lid close button (2) inside
the trunk lid, push in trunk lid lock or press
buttonŠ on the electronic key.
Page 57 of 430
54 Central locking system
Te ch n i c a l
data Instruments
and controlsOperationDrivingInstrument
cluster displayPractical hints Car care Index
In case of a malfunction the trunk lid can be opened and
closed manually.
To open, unlock trunk lid with the mechanical key and
open lid by hand, see page 51.
To close, lower trunk lid with hands placed flat on trunk
lid. Please remember to keep your fingers out of the
space between the lid and the vehicle.
Vehicles with KEYLESS-GO:
To prevent a possible inadvertent lockout, the trunk lid
will open automatically if a KEYLESS-GO-card is
recognized in the area of the rear shelf or inside the
trunk.Trunk lamp
The trunk lamp will switch off after approximately
10 minutes if the trunk lid is left open.
Page 58 of 430

55 Central locking system
Te ch n i c a l
data Instruments
and controlsOperationDrivingInstrument
cluster displayPractical hints Car care Index Trunk lid release switch
(Vehicles without trunk lid opening / closing system)
The switch is located on the driver’s door.The trunk lid will swing open automatically. You should
always make sure there is sufficient clearance.
A minimum height clearance of 6 ft. (1.85 m) is
required to open the trunk lid.
To open the trunk, the vehicle must be at standstill. Pull
up on switch until trunk lid is open.
The indicator lamp in the switch remains on with trunk
lid open.
Notes:
The trunk can also be opened by using the remote
control. Press Šbutton.
The trunk lid cannot be opened by the switch or the
remote control when previously locked separately with
the mechanical key. To open, see page 51.
The trunk lid cannot be opened with the trunk lid
release switch when the vehicle was previously locked
with the remote control. To unlock vehicle with the
remote control, see page 33.
Page 60 of 430

57 Central locking system
Te ch n i c a l
data Instruments
and controlsOperationDrivingInstrument
cluster displayPractical hints Car care Index Notes:
The automatic closing process is interrupted, if the
trunk lid is pushed against an object. The trunk lid will
reverse slightly and stop. In its final closing stage the
hydraulic power closing assist mechanism releases the
trunk lid which then drops into the lock by its own
weight. Now the trunk lid will stop but not reverse
slightly.
Investigate and correct the cause of interruption.
Now press trunk lid opening/closing switch again to
close the trunk lid.
In case of a malfunction the trunk lid can be opened and
closed manually.
To open, unlock trunk lid with the mechanical key and
open lid by hand, see page 51.
To close, lower trunk lid with hands placed flat on trunk
lid. Please remember to keep your fingers out of the
space between the lid and the vehicle.The trunk can also be opened by using the remote
control. PressŠ button.
The trunk lid cannot be opened by the switch or the
remote control when previously locked separately with
the mechanical key. To open, see page 51.
The trunk lid cannot be opened with the trunk lid
opening/closing switch when the vehicle was
previously locked with the central locking switch. To
unlock vehicle with the central locking switch, see
page 48.
Ve h i c l e s w i t h K E Y L E S S - G O :
To prevent a possible inadvertent lockout, the trunk lid
will open automatically if a KEYLESS-GO-card is
recognized in the area of rear shelf or inside the trunk.
Page 62 of 430

59 Central locking system
Te ch n i c a l
data Instruments
and controlsOperationDrivingInstrument
cluster displayPractical hints Car care Index Trunk lid emergency release
The emergency release button (1) is located in the trunk
lid.
Briefly press emergency release button (1).
The trunk unlocks and the trunk lid opens.Important!
The emergency release button (1) does not open the
trunk lid, if the vehicle battery is discharged or
disconnected.
Illumination of the emergency release button (1):
The button will blink for 30 minutes after opening the
trunk.
The button will blink for 60 minutes after closing the
trunk.
Note:
When pressing the emergency release button while the
vehicle was centrally locked, the exterior lamps will
flash and the alarm will sound.
To cancel the alarm, insert the electronic key in the
starter switch or press buttonŒ or‹ on the
electronic key or (vehicles with KEYLESS-GO) when
carrying the KEYLESS-GO-card, grasp the door handle
or press the start-/stop button on the gear selector lever.
1
Page 63 of 430

60 Antitheft alarm system
Te ch n i c a l
data Instruments
and controlsOperationDrivingInstrument
cluster displayPractical hints Car care Index
Antitheft alarm system
1Indicator lamp in switch located in center console
The antitheft alarm is automatically armed or disarmed
with the remote control or the KEYLESS-GO function, by
locking or unlocking the vehicle.The antitheft alarm is armed within approximately
10 seconds after locking the vehicle with the remote
control or the lock button at each door handle (vehicles
with KEYLESS-GO).
A blinking lamp (1) indicates that the alarm is armed.
Operation:
Once the alarm system has been armed, the exterior
vehicle lamps will flash and an alarm will sound when
someone:
•opens a door,
•opens the trunk,
•opens the hood,
•attempts to raise the vehicle.
The alarm will last approximately 2
1/2minutes in form
of flashing exterior lamps. At the same time an alarm
will sound for 30 seconds. The alarm will stay on even if
the activating element (a door, for example) is
immediately closed. If the alarm stays on for more than
20 seconds, an emergency call is initiated automatically.
See Tele Aid on page 218.
Page 64 of 430
61 Tow-away alarm
Te ch n i c a l
data Instruments
and controlsOperationDrivingInstrument
cluster displayPractical hints Car care Index Note:
When you unlock the driver’s door with the mechanical
key, the exterior lamps will flash and the alarm will
sound.
To cancel the alarm, insert the electronic key in the
starter switch or press buttonŒ or‹ on the
electronic key; or (vehicles with KEYLESS-GO) when
carrying the KEYLESS-GO-card, grasp the door handle
or press the start-/stop button on the gear selector lever.Tow-away alarm
The switch is located in the center console.
1Press to switch off
2Indicator lamp
Once the alarm system has been armed, the exterior
vehicle lamps will flash and an alarm will sound when
someone attempts to raise the vehicle.
Page 65 of 430

62 Tow-away alarm
Te ch n i c a l
data Instruments
and controlsOperationDrivingInstrument
cluster displayPractical hints Car care Index
The alarm will last approximately 2
1/2minutes in form
of flashing exterior lamps. At the same time an alarm
will sound for 30 seconds. The alarm will stay on even if
the vehicle is immediately lowered. To cancel the alarm,
insert the electronic key in the starter switch or press
buttonŒ or‹ on the electronic key; or (vehicles
with KEYLESS-GO) when carrying the KEYLESS-GO-
card, grasp the door handle or press the start-/stop
button on the gear selector lever.
If the alarm stays on for more than 20 seconds, an
emergency call is initiated automatically. See Tele Aid
on page 218.To prevent triggering the tow-away alarm feature, switch
off the tow-away alarm before towing the vehicle, or
when parking on a surface subject to movement, such
as a ferry or auto train.
To do so, turn electronic key in starter switch to
position 1 or 0, or remove electronic key from starter
switch. Press tow-away alarm switch (1). The indicator
lamp (2) illuminates briefly.
Exit vehicle, and lock vehicle with the electronic key or
(vehicles with KEYLESS-GO) the lock button at each
door handle.
The tow-away alarm remains switched off until the
vehicle is locked again with the electronic key or the
lock button at each door handle (vehicles with
KEYLESS-GO), at which time it is automatically
reactivated.