2007 MERCEDES-BENZ R320CDI keyless

116 Controls in detail
Locking and unlocking
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 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
SmartKey with KEYLESS-GO*
1‹ Lock button
2Š Unlock button* for tailgate
3Locking tab for mechanical key
4ΠUnlock button
5Battery check lamp
6Â Panic button (
page 99)
Warning!G
When leaving the vehicle, always take the
SmartKey with KEYLESS-GO* with you and
lock the vehicle. Do not leave children unat-
tended in the vehicle, or with access to an
unlocked vehicle. Unsupervised use of
vehicle equipment may cause an accident
and/or serious personal injury.
!To prevent possible malfunction, avoid
exposing the SmartKey with KEYLESS-GO to high
levels of electromagnetic radiation.
iUSA only:
This device complies with Part 15 of the
FCC Rules. Operation is subject to the following
two conditions:
(1) This device may not cause harmful interfer-
ence, and
(2) this device must accept any interference
received, including interference that may
cause undesired operation.
Any unauthorized modification to this device
could void the user’s authority to operate the
equipment.

117 Controls in detail
Locking and unlocking
Important notes on using KEYLESS-GO*

You can also use the SmartKey with
KEYLESS-GO like a normal SmartKey
(
page 112).

You can combine KEYLESS-GO func-
tions with normal SmartKey functions
(e.g. unlocking with KEYLESS-GO and
locking with the ‹button).

Always carry the SmartKey with
KEYLESS-GO with you.

Never store the SmartKey with
KEYLESS-GO together with

electronic items such as a cellular
phone or another SmartKey with
KEYLESS-GO

metallic objects such as coins or
metal foil
Doing so could impair the function of
the KEYLESS-GO system.

To lock or unlock the vehicle, the
SmartKey with KEYLESS-GO must be
located outside the vehicle within
approximately 3 ft (1 m) of the respec-
tive door or the tailgate.

In order to start the engine with the
SmartKey with KEYLESS-GO:

The SmartKey with KEYLESS-GO
must be located in the vehicle.

The KEYLESS-GO start/stop button
must be inserted in the starter
switch (
page 41).

The brake pedal must be firmly de-
pressed. Do not depress the accel-
erator.

If the SmartKey with KEYLESS-GO is
positioned farther away from the vehi-
cle, the system may no longer recog-
nize the SmartKey with KEYLESS-GO.
The vehicle then cannot be locked or
the engine started via the KEYLESS-GO
system.
iCanada only:
This device complies with RSS-210 of Industry
Canada. Operation is subject to the following
two conditions:
(1) This device may not cause interference, and
(2) this device must accept any interference
received, including interference that may
cause undesired operation of the device.
Any unauthorized modification to this device
could void the user’s authority to operate the
equipment.
iYou can also open and close the power win-
dows, the tilt/sliding sunroof*, or the tilt/sliding
panel* (
page 261) using the SmartKey with
KEYLESS-GO, see “Summer opening feature”
(
page 254) and “Convenience closing fea-
ture” (
page 256).

118 Controls in detail
Locking and unlocking

If the SmartKey with KEYLESS-GO is
removed from the vehicle (e.g. if a
passenger exits the vehicle with the
SmartKey with KEYLESS-GO)

when pressing the KEYLESS-GO
start/stop button or trying to lock
the vehicle with the lock button on
an outside door handle, the mes-
sage
Key not detected appears in
the multifunction display

with the engine running, the mes-
sage
Key not detected appears in
the multifunction display while
driving off
Find the SmartKey with KEYLESS-GO or
change its present location immediate-
ly (e.g. place it on the front passenger
seat or insert it in shirt pocket).

If you have started the engine with the
KEYLESS-GO start/stop button
(
page 55), you can turn it off again
with

the KEYLESS-GO start/stop button
(
page 67)

the SmartKey inserted in the starter
switch when the automatic trans-
mission is in position P

Remember that the engine can be
started by anyone with a SmartKey
with KEYLESS-GO that is left inside the
vehicle.
Possibility 1: (One SmartKey with
KEYLESS-GO in the vehicle, one
SmartKey with KEYLESS-GO outside
the vehicle):
If you leave the SmartKey with
KEYLESS-GO behind when exiting and
locking the vehicle, no message
appears in the multifunction display.
Possibility 2: (One SmartKey with
KEYLESS-GO in the vehicle, no
SmartKey with KEYLESS-GO outside
the vehicle):
When exiting and trying to lock the
vehicle, the message
Key detected in
vehicle
will appear in the multifunction
display. The vehicle will not be locked.

119 Controls in detail
Locking and unlocking
Factory setting
Global unlocking
Grasp an 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.
The vehicle will lock again automatically
and reactivate the anti-theft alarm system
within approximately 40 seconds of
unlocking if

neither door nor tailgate is opened

the central locking switch is not
activatedGlobal locking
Press the lock button on an outside
door handle (
page 69).
With the tailgate and all doors closed,
the turn signal lamps flash three times.
The locking knobs on the doors move
down. The anti-theft alarm system is
armed.Selective setting
If you frequently travel alone, you may wish
to reprogram the SmartKey with
KEYLESS-GO so when you grasp the driv-
er’s door handle only the driver’s door and
the fuel filler flap unlocks.
Press and hold buttonsŒ and‹
simultaneously for about 5 seconds
until battery check lamp5
(
page 116) flashes twice.
The SmartKey with KEYLESS-GO will
then function as follows:
Unlocking driver’s door and fuel filler
flap
Grasp the driver’s outside door handle.
All turn signal lamps flash once. The
locking knob in the driver’s door moves
up. The anti-theft alarm system is dis-
armed.
iIf the vehicle has been parked for more than
72 hours, you must pull an outside door handle
in order to activate the KEYLESS-GO function.
iThe vehicle could be inadvertently unlocked
if the SmartKey with KEYLESS-GO is within 3 ft
(1 m) of the vehicle and

an outside door handle is splashed
with water
or

you attempt to clean an outside door handle

120 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 69).
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 5 seconds
until battery check lamp5
(
page 116) flashes twice.Checking the batteries
Press button‹orŒ.
Battery check lamp5 (
page 116)
comes on briefly to indicate that the
SmartKey with KEYLESS-GO batteries
are in order.
!If you can no longer lock or unlock the
vehicle with the SmartKey with KEYLESS-GO, the
batteries in the SmartKey with KEYLESS-GO are
discharged, the SmartKey with KEYLESS-GO is
malfunctioning, or the vehicle battery is drained.

Check the batteries in the SmartKey with
KEYLESS-GO (
page 120) and replace
them if necessary (
page 483).

Use the mechanical key to unlock the
drivers’ door (
page 478).

Lock the vehicle as described in the
“Practical hints” section (
page 479).

Have the vehicle battery and the vehicle bat-
tery connections checked (
page 506).
If the SmartKey with KEYLESS-GO is malfunc-
tioning, contact Roadside Assistance or an
authorized Mercedes-Benz Light Truck Center.
iIf battery check lamp5 (page 116) does
not come on briefly during check, the SmartKey
with KEYLESS-GO batteries are discharged.
Replace the batteries (
page 483).
You can obtain the required batteries at any
authorized Mercedes-Benz Light Truck Center.
iIf the batteries are checked within signal
range of the vehicle, pressing the
button‹orŒ will lock or unlock the
vehicle accordingly.

121 Controls in detail
Locking and unlocking
Unlocking and opening the tailgate
(Vehicles with power 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.
The handle is located above the rear
license plate recess.Pull on the handle.
or
Press and hold buttonŠ on the
SmartKey with KEYLESS-GO until the
tailgate unlocks and opens.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
immediately to your car insurance
company.
Have the mechanical lock replaced if
necessary.
Your authorized Mercedes-Benz Light
Truck Center will be glad to supply you
with a replacement.
!The tailgate swings open upwards automat-
ically. Always make sure there is sufficient over-
head clearance.
To stop the opening procedure, press
buttonŠ on the SmartKey. The tailgate stops
moving.
iIf the vehicle was previously centrally locked
with the SmartKey or KEYLESS-GO, the tailgate
will lock automatically when closed
(
page 125). The turn signals will flash three
times to confirm locking.

122 Controls in detail
Locking and unlocking
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.
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 41).
The SmartKey with KEYLESS-GO must be
inside the vehicle.

123 Controls in detail
Locking 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.Pull on the handle.
The tailgate opens slightly.
Pull tailgate upwards to open.Opening the tailgate from the inside
manually
You can unlock the tailgate from the
third-row seats and then open it manually.
The handle is located on the right-hand
side of the tailgate’s window trim.
1Handle
2Push
3Lift
Push handle 1 in direction of arrow2
and hold it there.iVehicles without KEYLESS-GO*:
The vehicle must be unlocked (
page 39).
Vehicles with KEYLESS-GO*:
When opening the tailgate, the vehicle is globally
unlocked.
!The tailgate swings open upwards automat-
ically. Always make sure there is sufficient over-
head clearance.
Vehicles with power tailgate*:
To stop the opening procedure, press
buttonŠ on the SmartKey. The tailgate stops
moving.
iIf the vehicle was previously centrally
locked, the tailgate will lock automatically after
closing it (
page 125). The turn signals will
flash three times to confirm locking.
iThe tailgate can also be opened using
theŠ button on the SmartKey (
page 115)
or SmartKey with KEYLESS-GO* (
page 121).