2006 MERCEDES-BENZ R500 stop start

104 Safety and SecurityAnti-theft systemsImmobilizer
The immobilizer prevents unauthorized
persons from starting your vehicle.
Activating
With the SmartKey
Remove the SmartKey from the starter
switch.
With KEYLESS-GO*

Press the KEYLESS-GO start / stop
button (
page 40) once.
The engine is turned off.

Open the driver’s door.Deactivating
With the SmartKey


Turn the SmartKey in the starter switch
to position2 (
page 38).
With KEYLESS-GO*


Switch on the ignition (
page 38).
Anti-theft alarm system
Once the alarm system has been armed, a
visual and audible alarm is triggered when
someone opens

a door


the tailgate


the hood
The alarm will stay on, even if the activat-
ing element (a door, for example) is imme-
diately closed.
The alarm system will also be triggered
when


the vehicle is raised, see “Tow-away
alarm” (
page 106)


the vehicle is opened with the mechan-
ical key, see “Unlocking the vehicle”
(page 459)


a door is opened from the inside, see
“Opening the doors from the inside”
(page 121)
iStarting the engine will also deactivate
the immobilizer.
In case the engine cannot be started
(yet the vehicle’s battery is charged),
the system is not operational. Contact
an authorized Mercedes-Benz Light
Truck Center or call
1-800-FOR-MERCedes (in the USA), or
1-800-387-0100 (in Canada).

106 Safety and SecurityAnti-theft systemsDisarming the alarm system
Unlock the vehicle (
page 36).
The turn signal lamps flash once to
indicate that the vehicle is disarmed.Canceling the alarm
To cancel the alarm:
With the SmartKey

Insert the SmartKey in the starter
switch.
or

Press theŒ or ‹button on the
SmartKey.
With KEYLESS-GO*

Grasp an outside door handle.
The SmartKey with KEYLESS-GO must
be within 3 ft (1 m) of the vehicle.
or

Press the KEYLESS-GO start / stop
button (
page 40).
The SmartKey with KEYLESS-GO must
be inside the vehicle.
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.
iThe alarm system will rearm automati-
cally again after approximately
40 seconds if neither a door nor the
tailgate is opened.
iThe tow-away protection alarm is trig-
gered, for example, if the vehicle is
lifted on one side.
If the alarm stays on for more than
30 seconds, a call to the Response
Center is initiated automatically by the
Tele Aid* system (
page 311) provid-
ed Tele Aid* service was subscribed to
and properly activated, and that neces-
sary cellular service and GPS coverage
are available.

108 Safety and SecurityAnti-theft systems
Exit and lock the vehicle (
page 67).
The alarm system is armed indepen-
dently of whether the tow-alarm is
switched on or off.Canceling tow-away alarm
To cancel the alarm after it has been
triggered:
With the SmartKey

Insert the SmartKey in the starter
switch.
or

Press theŒ or ‹button on the
SmartKey.With KEYLESS-GO*

Grasp an outside door handle.
The SmartKey with KEYLESS-GO must
be within 3 ft (1 m) of the vehicle.
or

Press the KEYLESS-GO start/stop
button (
page 40).
The SmartKey with KEYLESS-GO must
be inside the vehicle.
iThe tow-away alarm is switched off on
a one-time basis only. It will be armed
automatically the next time you lock
the vehicle.
If you have disabled the tow-away
alarm feature in the control system
(page 191), you can switch on the
tow-away alarm on a one-time basis as
described above.


122 Controls in detailLocking and unlocking
Opening the tailgate
Opening the tailgate from the outside
A minimum height clearance of 7.2 ft
(2.20 m) is required to open the tailgate.
The handle is located above the rear
license plate recess.
Vehicles without KEYLESS-GO*:
The vehicle must be unlocked (
page 37).

Pull on the handle.
The tailgate opens slightly.

Pull tailgate upwards to open.The tailgate can also be opened using the
SmartKey (
page 114).
iIf the vehicle has previously been
locked from the outside with the
SmartKey or KEYLESS-GO*, opening a
door from the inside will trigger the
anti-theft alarm system.
To cancel the alarm, do one of the
following:
With the SmartKey

Insert the SmartKey in the starter
switch.


Press theŒ or ‹button on
the SmartKey.
With KEYLESS-GO*


Grasp an outside door handle.


Press the KEYLESS-GO start/stop
button (
page 40).
The SmartKey with KEYLESS-GO
must be inside the vehicle.
!Vehicles with tailgate opening/closing
system*:
To stop the opening procedure, press
buttonŠ on the SmartKey. The tail-
gate stops moving.
The tailgate swings open upwards auto-
matically. Always make sure there is
sufficient overhead clearance.iIf the vehicle was previously centrally
locked, the tailgate will lock automati-
cally after closing it (
page 124). The
turn signals will flash three times to
confirm locking.

125 Controls in detail
Locking and unlocking
If the tailgate comes into contact with an
object while closing (e.g. luggage that has
been piled too high) the closing procedure
is stopped and the tailgate reopens.Closing the tailgate from the outside
manually
1Handle

Lower tailgate by pulling firmly on
handle1.

Close tailgate with hands placed flat on
it.
Warning!
G
Maintain sight of the area around the rear of
the vehicle while operating the tailgate with
the door mounted switch. Monitor the
closing procedure carefully to make sure no
one is in danger of being injured.
To interrupt the closing procedure, press or
pull the door mounted remote tailgate
switch.
Even with the SmartKey or the SmartKey
with KEYLESS-GO* removed from the
starter switch or the SmartKey with
KEYLESS-GO* removed from the vehicle,
the remote tailgate switch can be operated.
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.
Warning!
G
Only drive with the tailgate closed as,
among other dangers such as blocked
visibility, exhaust fumes may enter the
vehicle interior.


127 Controls in detail
Locking and unlocking

Press tailgate closing switch1 briefly.
The tailgate closes.
If the tailgate comes into contact with an
object while closing (e.g. luggage that has
been piled too high), the closing procedure
is stopped and the tailgate reopens
slightly.iYou can also close the tailgate manual-
ly (
page 125).
Warning!
G
Monitor the closing procedure carefully to
make sure no one is in danger of being in-
jured. To prevent possible personal injury,
always keep hands and fingers away from
the cargo compartment opening when clos-
ing the tailgate. Be especially careful when
small children are around. To stop the clos-
ing procedure, do one of the following:

Press the tailgate closing switch1.


Press the Šbutton on the SmartKey.


Press or pull the remote tailgate switch
(on the driver’s door).
Even with the SmartKey removed from the
starter switch, the tailgate closing switch
can be operated. Therefore, 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.
Warning!
G
Only drive with the tailgate closed as,
among other dangers such as blocked
visibility, exhaust fumes may enter the vehi-
cle interior.iDo not place the SmartKey in the open
cargo compartment. You may lock
yourself out.iIf the vehicle was previously centrally
locked, the tailgate will lock automati-
cally after closing it. The turn signals
will flash three times to confirm lock-
ing.

132 Controls in detailSeatsFor information on seat adjustment, see
the “Getting started” section (
page 43).
For more information on seats, see “Load-
ing” (
page 279).
Easy-entry/exit feature*
Easy-entry/exit feature for driver’s
seat
This feature allows for easier entry into and
exit from the vehicle.
The easy-entry/exit feature can be
activated or deactivated in the Convenience
submenu of the control sys-
tem (
page 189).When exiting the vehicle, with the
easy-entry/exit feature activated and
depending on your selection, the steering
wheel tilts upwards and/or the driver’s
seat moves a few inches to the rear when
you


remove the SmartKey from the starter
switch
or


open the driver’s door with the
SmartKey in starter switch position
0or1(
page 38) or the
KEYLESS-GO* start/stop button in
position1 (page 40)
Warning!
G
You must make sure no one can become
trapped or injured by the moving steering
wheel and driver’s seat when the
easy-entry/exit feature is activated.
To cancel seat/steering wheel movement,
do one of the following:

Press seat adjustment switch
(page 43).


Move steering column stalk*
(page 46).


Press memory buttonM* (
page 145).
Do not leave children unattended in the ve-
hicle, or with access to an unlocked vehicle.
Children could open the driver’s door and
unintentionally activate the easy-entry/exit
feature, which could result in an accident
and/or serious personal injury.
!Do not activate the easy-entry/exit fea-
ture if the seat backrest is in an exces-
sively reclined position. Doing so could
cause damage to the driver’s seat or
left rear seat.
Move the seat backrest to an upright
position first.

133 Controls in detailSeats
When entering the vehicle, with the
easy-entry/exit feature activated, the
steering wheel or, depending on your se-
lection, the steering wheel and driver’s
seat will return to their last set memory po-
sition or a factory-set maximum forward
position when you

close the driver’s door with the ignition
switched on


insert the SmartKey into the starter
switch or press the KEYLESS-GO*
start/stop button (
page 40) once
with the driver’s door closed
iIf the current position for the steering
wheel is in the uppermost tilt position,
the steering wheel will no longer be
able to move upward when the
easy-entry/exit feature is activated.
If the current seat position falls into a
factory-set position range and the sys-
tem recognizes the current seat posi-
tion to be rearward enough for easy
entry and exit, the driver’s seat will not
move to the rear when the
easy-entry/exit feature is activated.
iFor safety reasons, the driver’s seat will
not return to its last set position with
the easy-entry/exit feature activated if
the system recognizes the last set posi-
tion as an extreme forward position. In-
stead, the driver’s seat will remain at or
move to a factory-set maximum for-
ward position. To again fully return the
driver’s seat to your last set position or
to memory position, adjust the seat to
the desired position or press and hold
the respective memory position button
(page 145).
iVehicles with memory function*:
The steering wheel and seat position is
stored into memory when you

switch off the ignition (
page 38)


allocate the current position steer-
ing wheel and seat position to a cer-
tain memory position button
(page 145)