2007 MERCEDES-BENZ R320CDI Unlocking

129 Controls in detail
Locking and unlocking
Closing the tailgate
Make sure you have the SmartKey with
KEYLESS-GO* with you.
Press tailgate closing switch1 briefly.
The tailgate closes and an acoustic
warning sounds.
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 and locking the tailgate
Make sure you have the SmartKey with
KEYLESS-GO* with you.
Press KEYLESS-GO* locking/closing
switch2 briefly.
The tailgate closes automatically and
an acoustic warning sounds. Once the
tailgate is closed, the vehicle locks if
doors are closed. 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.
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 automatically after
closing it. The turn signals will flash three times
to confirm locking.
iTo prevent a possible inadvertent lockout,
the tailgate will open automatically if a SmartKey
with KEYLESS-GO* is recognized inside the
vehicle.

130 Controls in detail
Locking and unlocking
Automatic central locking
The doors and the tailgate lock automati-
cally when the ignition is switched on and
the wheels are turning at vehicle speeds of
approximately 9 mph (15 km/h) or more.
You can open a locked door from the in-
side. Open door only when conditions are
safe to do so.
For information on towing the vehicle, see
“Towing the vehicle” (
page 517).
You can deactivate the automatic locking
mode using the control system
(
page 189).
Locking and unlocking from the inside
You can lock or unlock the doors and the
tailgate from inside using the central lock-
ing or unlocking switch. This can be useful,
for example, if you want to lock the vehicle
before starting to drive.
The fuel filler flap cannot be locked or un-
locked with the central locking or unlock-
ing switch.
The switches are located in the front-door
control panels.1Central unlocking switch
2Central locking switch
Locking
Press central locking switch2.
If all doors and the tailgate are closed,
the vehicle locks.
Unlocking
Press central unlocking switch1.
The vehicle unlocks.
iThe doors unlock automatically after an
accident if the force of the impact exceeds a pre-
set threshold.
The vehicle automatically locks 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 or towed

is on a test stand
Warning!G
When leaving the vehicle, always remove the
SmartKey or SmartKey with KEYLESS-GO*
from the starter switch, take it 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 vehi-
cle equipment may cause an accident
and/or serious personal injury.

131 Controls in detail
Locking and unlocking
iYou can open a locked door from the inside.
Open door only when conditions are safe to do
so.
If the vehicle was previously centrally locked
with the SmartKey or the SmartKey with
KEYLESS-GO*, it will not unlock using the central
unlocking switch1.
If the vehicle was previously locked with the cen-
tral locking switch2:

While in the selective remote control mode,
only the front door opened from the inside is
unlocked.

While in the global remote control mode, the
vehicle is unlocked completely when a front
door is opened from the inside.
iWith the passenger-side door opened, you
cannot lock the vehicle with the central locking
switch.

184 Controls in detail
Control system
In low ambient light conditions the
following lamps will switch on additionally:

Parking lamps

Tail lamps

License plate lamps

Side marker lamps
For more information on the daytime
running lamp mode, see “Lighting”
(
page 146).Setting locator lighting
With the locator lighting feature activated,
the exterior lamp switch in positionU
(
page 147) and the interior lighting in
automatic mode (
page 153), the
following lamps will switch on during dark-
ness when the vehicle is unlocked using
button Πon the SmartKey or SmartKey
with KEYLESS-GO*:

Parking lamps

Tail lamps

License plate lamps

Side marker lamps

Front fog lamps*
The locator lighting switches off when the
driver’s door is opened.
If you do not open a door after unlocking
the vehicle with the SmartKey, the lamps
will switch off automatically after approxi-
mately 40 seconds.
Move the selection marker with
buttonæ orç to the
Lighting
submenu.
Press buttonj ork repeatedly
until the message
Function Surround
lighting
appears in the multifunction
display.
The selection marker is on the current
setting.
Press buttonæ orç to switch
the locator lighting function
On or Off.
Turn the exterior lamp switch to
positionU when exiting the vehicle.
The locator lighting feature is
activated.
iFor safety reasons, changing the setting for
the daytime running lamp mode is not possible
while the vehicle is in motion. The following
message appears in the multifunction display:
Settings
only possible
at standstill
For safety reasons, resetting to factory settings
(
page 176) while driving will not deactivate the
daytime running lamp mode.

312 Controls in detail
Useful features
Closing CD changer*
1CD changer
Gently push CD changer 1 up in
direction of arrow until it engages.
For information on CD changer operation,
see separate COMAND system operating
instructions.
Locking and unlocking the glove box
separately
You can lock the glove box separately, e.g.
when the vehicle is in the shop for service.
Take the mechanical key out of the
SmartKey or SmartKey with
KEYLESS-GO* (
page 478).
1Unlocking glove box
2Locking glove box
Insert mechanical key into glove box
lock.
Turn mechanical key to position 2 to
lock the glove box.
Turn mechanical key to position 1 to
unlock the glove box.Storage compartment in front center
console
1Cover
2Chrome label
Tab lightly on chrome label 2 of
cover1.
Cover 1 swings open.
Additional storage compartment in
front center console
A storage compartment is located in front
of the armrest in the front center console.
iThe glove box can only be locked or
unlocked with the mechanical key.

336 Controls in detail
Useful features
Call priority
If other service calls such as a Roadside
Assistance call or Information call are
active, an Emergency call is still possible.
In this case, the Emergency call will take
priority and override all other active calls.Remote door unlock
In case you have locked your vehicle unin-
tentionally (e.g. SmartKey inside vehicle),
and the reserve SmartKey is not handy:
Contact the Mercedes-Benz Response
Center at 1-800-756-9018 (in the USA)
or 1-888-923-8367 (in Canada).
You will be asked to provide your pass-
word which you provided when you
completed the subscriber agreement.
Then return to your vehicle at the time
arranged with the Response Center
and pull the tailgate recessed handle
for a minimum of 20 seconds until the
SOS button is flashing.
The message
Connecting call
appears in the multifunction display.
As an alternative, you may unlock the vehi-
cle via Internet using the ID and password
sent to you shortly after the completion of
your acquaintance call.The Response Center will then unlock your
vehicle with the remote door unlocking
feature.
iThe indicator lamp in the respective button
flashes until the call is concluded. Emergency
calls can only be terminated by a Response
Center or Customer Assistance Center repre-
sentative, whereas Roadside Assistance and
Information calls can also be terminated using
thetbutton on the multifunction steering
wheel or the END button on the COMAND
system headunit.
!If the indicator lamp continues to flash or
the system does not reset, contact the Response
Center at 1-800-756-9018 (in the USA) or
1-888-923-8367 (in Canada), or Mercedes-Benz
Customer Assistance at 1-800-FOR-MERCedes
(1-800-367-6372) in the USA or Customer
Service at 1-800-387-0100 in Canada.
iThe remote door unlock feature is
available if the relevant cellular phone network is
available.
The SOS button will flash and the message
Connecting call will appear in the multifunc-
tion display to indicate receipt of the door unlock
command.
Once the vehicle is unlocked, a Response Center
specialist may attempt to establish voice contact
with the vehicle occupants.
If the tailgate recessed handle was pulled for
more than 20 seconds before door unlock autho-
rization was received by the Response Center,
you must wait 15 minutes before pulling the
tailgate recessed handle again.

360 Operation
At the gas station
Refueling
The fuel filler flap is located on the
right-hand side of the vehicle towards the
rear. Locking/unlocking the vehicle with
the SmartKey or the SmartKey with
KEYLESS-GO* automatically
locks/unlocks the fuel filler flap.
Turn off the engine

by turning the SmartKey to
position0 (
page 39). Remove the
SmartKey from the starter switch.

by pressing the KEYLESS-GO*
start/stop button (
page 41).
Open the driver’s door (with the
driver’s door open, starter switch is
now in position 0, same as
SmartKey removed from starter
switch).
Briefly push on fuel filler flap at the
position indicated the arrow.
The fuel filler flap opens slightly.
Warning!G
Gasoline and diesel fuels are highly flamma-
ble and poisonous. They burn violently and
can cause serious injury.
Never allow sparks, flame or smoking mate-
rials near gasoline or diesel fuel!
Turn off the engine before refueling.
Whenever you are around gasoline or diesel
fuel, avoid inhaling fumes and skin or cloth-
ing contact, extinguish all smoking materi-
als.
Direct skin contact with gasoline or diesel
fuels and the inhalation of gasoline or diesel
fuel vapors can damage your health.
Warning!G
Do not fill diesel tanks with gasoline. Do not
mix diesel fuel with gasoline. Otherwise the
fuel system and engine could be damaged.
In addition, the vehicle could catch fire.
!Damage resulting from mixing gasoline with
diesel fuel is not covered by the Mercedes-Benz
Limited Warranty.
!Diesel engine: When filling the diesel fuel
tank using fuel containers, place a filling filter, a
suede cloth or a clean flannel cloth as a filter.
Otherwise, particles from the fuel container
could clog the fuel lines and/or the diesel injec-
tion system.

419 Practical hints
What to do if …
Where will I find ...?
Unlocking / locking in an
emergency
Opening / closing in an emergency
Resetting activated head restraints
Replacing SmartKey batteries
Replacing bulbs
Replacing wiper blades
Flat tire
Bleeding the fuel system
(diesel engine only)
Battery
Jump starting
Towing the vehicle
Fuses