2010 MERCEDES-BENZ R320 lock

Unless you open a door or the tailgate within
approximately 40 seconds after unlocking
the vehicle:
R
The vehicle will be locked again.
R The antitheft alarm system will be rearmed. X
Global locking: Press lock button : on an
outside door handle.
Selective setting If you frequently travel alone, you may wish
to reprogram the SmartKey. Grasping the
driver’s outside door handle will then only
unlock the driver’s door and the fuel filler flap.
X
Switching on/off: Press and hold buttons
% and & simultaneously for
approximately 6 seconds until the battery
check lamp (Y page 73) flashes twice.
The SmartKey will then function as follows:
X Unlocking driver’s door and fuel filler
flap: Grasp the driver’s outside door
handle.
X Global unlocking: Grasp any outside door
handle other than the driver’s outside door
handle.
X Global locking: Press lock button : on an
outside door handle. Checking SmartKey batteries
Example illustration: SmartKey with KEYLESS-GO
X
Press button & or % on the
SmartKey.
Battery check lamp : comes on briefly to
indicate that the SmartKey batteries are in
order.
If the battery check lamp does not come on
briefly during check, the SmartKey batteries
are discharged.
X Replace the batteries ( Y page 310).
i You can obtain the required batteries at
any authorized Mercedes-Benz Center.
i If the batteries are checked within signal
range of the vehicle, pressing button
& or % will lock or unlock the vehicle
accordingly. Loss of the SmartKey
If you lose your SmartKey or mechanical key,
you should do the following:
X Have the SmartKey deactivated by an
authorized Mercedes-Benz Center.
X Report the loss of the SmartKey or the
mechanical key to your car insurance
company immediately.
X Have the mechanical lock replaced if
necessary.
Any authorized Mercedes-Benz Center will be
glad to supply you with a replacement. Locking and unlocking
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Opening the doors from the inside
You can open a door from the inside even
when it is locked unless it is secured with the
child safety lock ( Y page 61).
Open door only when conditions are safe to
do so. Example illustration driver’s door
If the vehicle has previously been locked with
the SmartKey or with KEYLESS-GO, opening
a door from the inside will trigger the anti-
theft alarm system.
To cancel the alarm, see (
Y page 68).
X Front doors: Pull on inside door
handle ; on the respective front door.
If the door was locked, locking knob : will
move up.
X Rear doors: Pull up locking knob on the
respective rear door to unlock door.
X Pull on the inside door handle on the
respective rear door. Automatic central locking
The doors and the tailgate lock automatically
when the vehicle is set into motion.
You can open a locked front door from the
inside. Open door only when conditions are
safe to do so.
The doors are designed to unlock
automatically after an accident if the force of
the impact exceeds a preset threshold.
The vehicle locks automatically when the
ignition is switched on and the wheels are turning at vehicle speeds of above 9 mph
(15 km/h). You could therefore lock yourself
out when the vehicle is pushed or towed or is
on a test stand.
i
You can also activate or deactivate the
automatic central locking using the control
system (Y page 137). Locking and unlocking from the inside
G
Observe Safety notes, see page 55.
You can lock or unlock the vehicle from the
inside using the central locking switches. This
can be useful, for example, if you want to lock
the vehicle before starting to drive.
The central locking switches do not lock or
unlock the fuel filler flap.
The switches are located in each front door. X
Locking: Press central locking switch ;.
When all doors and the tailgate are closed,
the vehicle locks.
X Unlocking: Press central unlocking
switch :.
You can open a locked front door from the
inside at any time. Open door only when
conditions are safe to do so. 74
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If the vehicle was previously locked with the
central locking switch
R
and the SmartKey is set to factory settings,
the complete vehicle is unlocked when a
front door is opened from the inside
R and the SmartKey is set to selective
settings, only the front door opened from
the inside is unlocked
If the vehicle has been locked centrally with
the SmartKey or with KEYLESS-GO, it will not
unlock using the central unlocking switch. Tailgate
G
Warning!
Make sure the tailgate is closed when the
engine is running and while driving. Among
other dangers, deadly carbon monoxide (CO)
gases may enter vehicle interior resulting in
unconsciousness and death.
A minimum height clearance of 7.20 ft
(2.20 m) is required to open the tailgate.
Opening the tailgate from the outside X
Pull on handle :.
In vehicles without KEYLESS-GO: The
vehicle must be unlocked.
X Pull tailgate upwards to open. Closing the tailgate from the outside G
Observe Safety notes, see page 55. G
Warning!
To prevent possible personal injury, always
keep hands and fingers away from the cargo
compartment opening when closing the
tailgate. Be especially careful when small
children are around. X
Lower tailgate by pulling firmly on
handles :.
X Close tailgate with hands placed flat on it.
Once the tailgate touches the latch, the
tailgate will pull itself shut automatically.
Opening the tailgate from the inside G
Warning!
Do not leave children unattended in the
vehicle. Children could open the tailgate from
the inside, which could result in an accident
and/or serious personal injury.
! Always make sure there is sufficient
overhead clearance.
You can unlock the tailgate from the third-row
seats and then open it manually. Locking and unlocking
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X
Push handle : in direction of arrow ; and
hold it there.
X From this position, lift handle : in
direction of arrow = and hold it there.
The tailgate is released and can be opened
manually.
i If you do not open the tailgate within a few
seconds, the tailgate lock will engage again
automatically. Additionally, the tailgate will
relock automatically if the vehicle was
locked when the tailgate was released from
the inside.
If the tailgate lock does not engage
automatically and, if applicable, the tailgate
does not relock after a few seconds, you
have to close the tailgate manually
(Y page 75). Power tailgate
G
Warning!
Make sure the tailgate is closed when the
engine is running and while driving. Among
other dangers, deadly carbon monoxide (CO)
gases may enter vehicle interior resulting in
unconsciousness and death.
! The tailgate swings open upwards
automatically. Always make sure there is
sufficient overhead clearance.
A minimum height clearance of 7.20 ft
(2.20 m) is required to open the tailgate. In vehicles with power tailgate, you can
R
open and close the tailgate from the inside
and the outside electrically
R limit the opening height of the tailgate
R interrupt the opening/closing procedure at
any time by
-pressing or pulling the door-mounted
remote tailgate opening/closing switch
- pulling the outside handle on the tailgate
- pressing the tailgate closing switch
- pressing the KEYLESS-GO locking/
closing switch
Notes for operating the tailgate with the
SmartKey:
You can also open, close, and stop the
tailgate by pressing button F on the
SmartKey.
The prerequisites for this are:
R No SmartKey is inserted in the starter
switch.
R KEYLESS-GO: The vehicle’s on-board
electronics must have status 0
(Y page 80).
Opening the tailgate from the outside You can unlock and open the tailgate
simultaneously from the outside when the
vehicle is stationary.
X
Press and hold button F on the
SmartKey until the tailgate unlocks and
begins to open.
While the tailgate is opening, an acoustic
warning sounds.
or
X Vehicles with KEYLESS-GO: Pull on the
handle ( Y page 75). 76
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Closing the tailgate from the outside
G
Observe Safety notes, see page 55. G
Warning!
Monitor the closing procedure carefully to
make sure no one is in danger of being
injured. To prevent possible personal injury,
always keep hands and fingers away from the
cargo compartment opening when closing the
tailgate. Be especially careful when small
children are around. To stop the closing
procedure, do one of the following:
R Press or pull the remote tailgate opening/
closing switch on the driver’s door.
R Press the tailgate closing switch.
R Press the KEYLESS-GO locking/closing
switch.
R Pull outside handle on the tailgate.
R When no SmartKey is inserted in the starter
switch (vehicles with KEYLESS-GO: Make
sure the vehicle’s on-board electronics
have status 0): Press button F on the
SmartKey.
Do not leave the SmartKey in the vehicle. You
may lock yourself out.
If the vehicle was previously centrally locked
with the SmartKey or KEYLESS-GO, the
tailgate will lock automatically when it is
closed. The turn signal lamps flash three
times to confirm locking. Vehicles without KEYLESS-GO Vehicles with KEYLESS-GO
X
Press tailgate closing switch : or press
and hold button F on the SmartKey until
the tailgate begins to close.
If the tailgate comes into contact with an
object while closing, the closing procedure is
stopped and the tailgate reopens. This may
happen if luggage has been piled too high, for
example.
Closing the tailgate and locking the
vehicle from the outside (vehicles with
KEYLESS-GO) G
Observe Safety notes, see page 55. G
Warning!
Monitor the closing procedure carefully to
make sure no one is in danger of being
injured. To prevent possible personal injury,
always keep hands and fingers away from the
cargo compartment opening when closing the
tailgate. Be especially careful when small
children are around. To stop the closing
procedure, do one of the following:
R Press or pull the remote tailgate opening/
closing switch on the driver’s door.
R Press the tailgate closing switch.
R Press the KEYLESS-GO locking/closing
switch.
R Pull outside handle on the tailgate.
R When no SmartKey is inserted in the starter
switch (vehicles with KEYLESS-GO: Make
sure the vehicle’s on-board electronics Locking and unlocking
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have status 0): Press button
F on the
SmartKey.
You can close the tailgate and lock the vehicle
simultaneously from the outside using the
KEYLESS-GO locking/closing switch. X
Make sure you have the SmartKey with you.
X Press KEYLESS-GO locking/closing
switch : briefly.
The tailgate closes.
Once the tailgate and all doors are closed:
R
The vehicle locks.
R The turn signals flash three times to
confirm locking.
R The locking knobs in the doors move
down.
R The anti-theft alarm system is armed.
If the tailgate comes into contact with an
object while closing, the closing procedure is
stopped and the tailgate reopens. This may
happen if luggage has been piled too high, for
example.
The closing process is stopped if the system
cannot recognize a SmartKey with KEYLESS-
GO anymore. Make sure the SmartKey with
KEYLESS-GO is within approximately 3 ft
(1 m) of the tailgate. Repeat the closing
procedure if necessary.
The tailgate remains unlocked when a
SmartKey with KEYLESS-GO is recognized
inside the vehicle to prevent a possible
inadvertent lockout. In this case, the turn
signals will not flash and the anti-theft alarm
will be triggered when the tailgate is opened. Opening/closing the tailgate from the
inside Opening
G
Observe Safety notes, see page 76. G
Warning!
Maintain sight of the area around the rear of
the vehicle while operating the tailgate with
the door-mounted remote tailgate switch.
Monitor the opening procedure carefully to
make sure no one is in danger of being
injured.
To interrupt the opening procedure, press or
pull the door-mounted remote tailgate switch.
When the SmartKey is not inserted in the
starter switch (vehicles with KEYLESS-GO:
Make sure the vehicle’s on-board electronics
have status 0): Press button F on the
SmartKey.
You can unlock and open the tailgate
simultaneously from the driver’s seat when
the vehicle is stationary. X
Pull remote tailgate opening/closing
switch : until the tailgate begins to open.
While the tailgate is opening, an acoustic
warning sounds.
Closing G
Observe Safety notes, see page 55. G
Warning!
Maintain sight of the area around the rear of
the vehicle while operating the tailgate with 78
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R
Adjust the head restraint so that it is as
close
to the head as possible. The center of
the head restraint must support the back of
the head at eye level.
R Never place hands under the seat or near
any moving parts while a seat is being
adjusted.
Failure to do so could result in an accident
and/or serious personal injury. G
Warning!
The power seats can be operated at any time.
Therefore, do not leave children unattended
in the vehicle, or with access to an unlocked
vehicle. A child’s unsupervised access to a
vehicle could result in an accident and/or
serious personal injury. G
Warning!
According to accident statistics, children are
safer when properly restrained in the rear
seating positions than in the front seating
position. Thus, we strongly recommend that
children

be placed in the rear seats whenever
possible. Regardless of seating position,
children 12 years old and under must be
seated and properly secured in an
appropriately sized infant restraint, toddler
restraint, or booster seat recommended for
the size and weight of the child. For additional
information, see “Children in the vehicle”.
A child’s risk of serious or fatal injuries is
significantly increased if the child restraints
are not properly secured in the vehicle and/
or the child is not properly secured in the child
restraint. G
Warning!
For your protection, drive only with properly
positioned head restraints.
Adjust

the head restraint so that it is as close
to the head as possible and the center of the
head restraint supports the back of the head
at eye level. This will reduce the potential for
injury to the head and neck in the event of an
accident or similar situation. Do not drive the vehicle without the seat head
restraints. Head restraints are intended to
help reduce injuries during an accident.
Seat adjustment
! When moving the seats, make sure there
are no items in the footwell or behind the
seats. Otherwise, you could damage the
seats and/or the items.
Power seats !
When the second-row seats are folded
forward, e.g. for cargo volume expansion,
the front seats may not be moved to the
rearmost position. Otherwise you could
damage the front and second-row seats.
! When

adjusting the seat backrest tilt and
head restraint height, make sure the sun
visor is folded up. If the head restraint is in
the uppermost position, it could hit and
damage the sun visor.
i Vehicles without memory function:
The seats can be adjusted within 5 minutes
after either front door has been opened.
The counter resets each time
R you open or close a front door
R you insert the SmartKey into the starter
switch
R you remove the SmartKey from the
starter switch
R you switch the ignition on or off
Just like in vehicles with memory function,
the power seats can be operated at any
time when the ignition is switched on.
i The memory function (Y page 96) lets
you store the settings for the seat position
together with the settings for the steering
wheel (electrical) and exterior rear view
mirrors. 82
Seats
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X
While seated, reach behind you with both
hands and find lower edge of the head
restraint.
X Push or pull on the lower edge of the head
restraint cushion to the desired position. Easy-entry/exit feature for third-row
seats
This feature allows for easier access to and
exit from the vehicle’s third-row seats. G
Warning!
To help avoid personal injury, the second-row
seat backrests must be properly locked either
in the upright position or, when using the
expanded cargo volume, in the fully folded
position while the vehicle is in motion.
! 7-seat vehicles:
Do not use the driver’s side easy-entry/exit
feature for third-row seats when the
second-row middle seat is in armrest
position. Otherwise, the seat belt outlet of
the second-row middle seat could damage
the seat backrest of the outboard seat.
! Vehicles with Rear Seat Entertainment
Package:
When using the easy-entry/exit feature, a
fully raised head restraint could hit the
monitor when the seat is moving forward.
Lower the head restraint or hold on to the
seat backrest to prevent damage. Easy-entry feature for third-row seats The releases for the easy-entry feature are
located on the entry side and the back of each
outboard second-row seat.
X
Pull and hold easy-entry lever : in
direction of arrow at resistance point.
The seat backrest folds forward.
X Push the seat forward as far as it will go.
You should now have sufficient space to
access the vehicle’s third-row seat. Easy-entry/exit position
X
Enter the vehicle.
For information on how to fold down the
second-row seats completely, see
“Expanding cargo volume” ( Y page 189).
Easy-exit feature for third-row seats The easy-exit straps are located on the rear
of each outboard second-row seat base.84
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