2006 MERCEDES-BENZ R500 light

114 Controls in detailLocking and unlockingUnlocking and opening the tailgate
You can unlock and open the tailgate sep-
arately.
A minimum height clearance of 7.2 ft
(2.20 m) is required to open the tailgate.
Press and hold buttonŠ on the
SmartKey until the tailgate unlocks and
begins to open.Loss 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 Light Truck
Center.

Report the loss of the SmartKey or the
mechanical key immediately to your
car insurance company.

If necessary, have the mechanical lock
replaced.
Your authorized Mercedes-Benz Light
Truck Center will be glad to supply you
with a replacement.
SmartKey with KEYLESS-GO*
Vehicles equipped with KEYLESS-GO come
with two SmartKeys with KEYLESS-GO,
each with remote control and a removable
mechanical key.
The locking tabs for the mechanical key
portion of the two SmartKeys with
KEYLESS-GO are a different color to help
distinguish each SmartKey with
KEYLESS-GO unit.
The function of the SmartKey overrules the
KEYLESS-GO function.
The KEYLESS-GO function is integrated
into the SmartKey. On these vehicles, the
validity of the SmartKey with KEYLESS-GO
is checked when you grasp an outside door
handle.
If the SmartKey with KEYLESS-GO is valid,
your vehicle unlocks

the doors


the tailgate


the fuel filler flap
!The tailgate swings open upwards auto-
matically. Always make sure there is
sufficient overhead clearance.
Vehicles with tailgate opening/closing
system*:
To stop the opening procedure, press
buttonŠ on the SmartKey. The tail-
gate stops moving.
iIf the vehicle was previously centrally
locked with the SmartKey, the tailgate
will lock automatically when closed.
The turn signals will flash three times to
confirm locking.

119 Controls in detail
Locking and unlocking
Global unlocking
Grasp any outside door handle other
than the driver’s outside door handle.
All turn signal lamps flash once. The
locking knobs in the doors move up.
The anti-theft alarm system is dis-
armed.
Global locking

Press the lock button on an outside
door handle (
page 68) or the tailgate
(
page 120).
All turn signal lamps flash three times.
The locking knobs in the doors move
down. The anti-theft alarm system is
armed.
Restoring to factory setting

Press and hold buttonsŒ and‹
simultaneously for about 6 seconds
until battery check lamp5
(page 115) flashes twice.Checking the battery

Press button‹orŒ.
Battery check lamp5 (
page 115)
comes on briefly to indicate that the
SmartKey with KEYLESS-GO battery is
in order.
!If you can no longer lock or unlock the
vehicle with the SmartKey with
KEYLESS-GO, then the battery in the
SmartKey is discharged, the SmartKey
with KEYLESS-GO is malfunctioning or
the vehicle battery is drained.

Check the battery in the SmartKey
with KEYLESS-GO (
page 119)
and replace it if necessary
(
page 463).


Use the mechanical key to unlock
the driver’ door (
page 459).


Lock the vehicle as described in the
“Practical hints” section
(page 460).


Have the vehicle battery and the
vehicle battery connections
checked (
page 487).
If the SmartKey with KEYLESS-GO is
malfunctioning, contact an authorized
Mercedes-Benz Light Truck Center.
iIf battery check lamp5 (
page 115)
does not come on briefly during check,
the SmartKey with KEYLESS-GO bat-
tery is discharged.
Replace the battery (
page 463).
You can obtain the required battery at
any authorized Mercedes-Benz Light
Truck Center.
iIf the battery is checked within signal
range of the vehicle, pressing the
button‹orŒ will lock or un-
lock the vehicle accordingly.

121 Controls in detail
Locking and unlocking
Loss of the SmartKey with KEYLESS-GO
If you lose your SmartKey with
KEYLESS-GO or mechanical key, you
should do the following:
Have the SmartKey with KEYLESS-GO
deactivated by an authorized
Mercedes-Benz Light Truck Center.

Report the loss of the SmartKey with
KEYLESS-GO or the mechanical key im-
mediately to your car insurance com-
pany.

Have the mechanical lock replaced if
necessary.
Your authorized Mercedes-Benz Light
Truck Center will be glad to supply you
with a replacement.
Opening the doors from the inside
You can open a locked door from the in-
side. Open door only when conditions are
safe to do so.
1Locking knob
2Inside door handleFront doors

Pull on inside door handle2 on the
respective front door to open door.
If the door was locked, locking knob1
will move up.
Rear doors

Pull up locking knob1 on the respec-
tive rear door to unlock door.

Pull on inside door handle2 on the re-
spective rear door to open door.

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.

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.

128 Controls in detailLocking and unlockingClosing the tailgate from the outside
(vehicles with KEYLESS-GO*)
In vehicles with tailgate opening/closing
system* you can close the tailgate sepa-
rately from the outside using the tailgate
closing switch or the Šbutton on the
SmartKey.
1Tailgate closing switch
Make sure you have the SmartKey with
KEYLESS-GO* with you.

Press tailgate closing switch 1 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 slight-
ly.
iYou can also close the tailgate manual-
ly (
page 125).
iTo prevent a possible inadvertent lock-
out, the tailgate will open automatically
if a SmartKey with KEYLESS-GO* is
recognized inside the vehicle.
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 KEYLESS-GO locking/closing
switch.


Press the Šbutton on the SmartKey
with KEYLESS-GO.


Press or pull the remote tailgate switch
(on the driver’s door).

129 Controls in detail
Locking and unlocking
Closing the tailgate and locking the
vehicle from the outside (vehicles with
KEYLESS-GO*)
In vehicles with tailgate opening/closing
system* and KEYLESS-GO*, you can close
the tailgate and lock the vehicle simulta-
neously from the outside using the
KEYLESS-GO* locking/closing switch or
the Šbutton on the SmartKey.
1KEYLESS-GO* locking/closing switch
Make sure you have the SmartKey with
KEYLESS-GO* with you.

Press switch1 briefly.
The vehicle is locked and the tailgate
closes automatically. The turn signals
flash three times to confirm locking.
The locking knobs in the doors move
down. The anti-theft alarm system is
armed.
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.
Even with the SmartKey with KEYLESS-GO*
removed from the vehicle, the tailgate
closing switch can be operated. Therefore,
do not leave children unattended in the ve-
hicle, or with access to an unlocked vehicle.
Unsupervised 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.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.
iYou can also close the tailgate manual-
ly (
page 125).
iTo prevent a possible inadvertent lock-
out, the tailgate will open automatically
if a SmartKey with KEYLESS-GO* is
recognized inside the vehicle.

138 Controls in detailSeatsSeat backrest tilt (second-row seats)
The handles for adjusting the seats are
located on the rear of each seat base.
1Adjustment handle
While seated, pull handle 1 in direc-
tion of arrow to resistance point and
hold it there.

To move seat backrest back, lean light-
ly against backrest.

To move seat backrest forward, lean
forward with handle 1 pulled and held
at resistance point.
The seat backrest will move forward
against your back.

Release handle 1 when the seat back-
rest has reached the desired position.
To make sure the seat backrest has en-
gaged, lean firmly against the backrest.Seat backrest tilt (third-row seats)
The handles for adjusting the seats are
located on the outer side of each seat
backrest.
1Adjustment handle

While seated, pull handle 1 in direc-
tion of arrow and hold it there.