2007 MERCEDES-BENZ R350 child lock

68 Getting started
Parking and locking
Releasing seat belts
Press the seat belt release button
(
page 52).
Allow the retractor to completely re-
wind the seat belt by guiding the latch
plate.
Locking
Exit the vehicle and close all doors and
the tailgate.
Locking with the SmartKey
Press button‹on the SmartKey
(
page 38).
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.
For more information, see “Locking and
unlocking” (
page 112).
!Make sure the seat belt retracts fully so that
the seat belt and/or latch plate cannot get
caught or pinched in the door or in the seat
mechanism. This can damage the seat belt and
impair the effectiveness of the seat belt, and/or
cause damage to the door and/or door trim pan-
el. Such damage is not covered by the
Mercedes-Benz Limited Warranty.
Damaged seat belts must be replaced.
Contact an authorized Mercedes-Benz Light
Truck Center.
Warning!G
To prevent possible personal injury, always
keep hands and fingers away from the door
openings when closing the doors.
Be especially careful when small children
are around.
Before closing doors, make sure there is no
possibility of someone getting caught in a
door during closing.
Warning!G
When leaving the vehicle, always remove the
SmartKey from the starter switch, take the
SmartKey with KEYLESS-GO* with you, and
lock your vehicle. Do not leave children
unattended in the vehicle, or with access to
an unlocked vehicle. Unsupervised use of
vehicle equipment may cause an accident
and/or serious personal injury.
iIf you hear a warning signal, you have
forgotten to switch off the exterior lamps before
opening the driver’s door.
In addition the message
Switch off lights
appears in the multifunction display.
Switch off the exterior lamps.

85 Safety and Security
Occupant safety
Infant and child restraint systems
We recommend all infants and children be
properly restrained at all times while the
vehicle is in motion.
All lap-shoulder belts except the driver’s
seat belt have special seat belt retractors
for secure fastening of child restraints.
To fasten a child restraint, follow child
restraint instructions for mounting. Then
pull the shoulder belt out completely and
let it retract. During seat belt retraction, a
ratcheting sound can be heard to indicate
that the special seat belt retractor is acti-
vated. The belt is now locked. Push down
on child restraint to take up any slack.
To deactivate, release seat belt buckle and
let seat belt retract completely. To deacti-
vate the special seat belt retractor for the
front passenger seat, the front passenger
seat must be in the most backward posi-
tion. The seat belt can again be used in the
usual manner.The use of infant or child restraints is re-
quired by law in all 50 states, the District
of Columbia, the U.S. territories and all
Canadian provinces.Do not expose the child restraint system to
direct sunlight. The child restraint system’s
metal parts, for example, could become very
hot, and the child could be burned on these
parts.
If children open a door, they could

injure other persons

get out of the car and injure themselves
or be injured by following traffic
Do not carry heavy or hard objects in the
passenger or cargo compartment unless
they are firmly secured in place. For more in-
formation, please refer to the “Loading”
(
page 297) and “Useful features”
(
page 311) sections in the “Controls in
detail” chapter.
Unsecured or improperly positioned cargo
increases a child’s risk of injury in the event
of:

strong braking maneuvers

sudden changes of direction

an accident
Warning!G
Never release the seat belt buckle while the
vehicle is in motion, since the special seat
belt retractor will be deactivated.
iFor information on child seats with mounting
fittings for tether anchorages, see “Installation
of infant and child restraint system”
(
page 95).
For information on LATCH type child seat
mounts, see “Child seat anchors – LATCH type”
(
page 93).

96 Safety and Security
Occupant safety
Securely fasten hook3, which is part
of top tether strap4, to anchorage
ring2.
Make sure

the top tether strap is not twisted

the head restraint is installed and
positioned such that the top tether
strap* can pass freely between the
head restraint and top of seat back-
rest

top tether strap is positioned be-
tween the seat backrest and the
cargo compartment cover blind*
(if installed)

the top tether strap is positioned
between the seat backrest and the
partition net* (if installed)
Fold seat backrest up and push back-
wards until it audibly engages.
A second-row seat is properly locked
only when lock status indicator 1 is in
hinged position and red marking 2 is
barely visible (
page 135).
Warning!G
When installing a child seat on a third-row
seat, do not fasten hook 3 to the strap
below anchorage ring 2. Otherwise, the
child seat will not be securely fastened.
A child’s risk of serious or fatal injuries is
significantly increased if the child seat is not
properly secured in the vehicle.
Warning!G
After installing top tether straps, make sure

the seats are properly locked

the seat backrests are in an upright po-
sition and are properly locked
A second-row seat is properly locked only
when lock status indicator 1 is in hinged
position and red marking 2 is barely visible
(
page 135).
If a seat and seat backrest are not properly
locked, the seat could move forward and the
seat backrest could fold. The child seat
would no longer be properly supported or
positioned to provide its intended benefit.
That could cause serious or even fatal
injuries.


97 Safety and Security
Occupant safety
Lower the head restraint if necessary
(
page 139).
Make sure the top tether strap can
pass freely between the head restraint
and top of seat backrest.
Install the child restraint system and
tighten the top tether strap according
to the child restraint manufacturer’s
instructions.
Blocking of rear door window operation
With the override switch you can disable
the rear side window switches in the rear
door panels.The override switch is located on the
driver’s door control panel.
1Override switch
For more information on power windows,
see “Power windows” (
page 251).
Warning!G
Activate the override switch when children
are riding in the back seats of the vehicle.
The children could otherwise injure them-
selves, e.g. by becoming trapped in the
window opening.
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.

113 Controls in detail
Locking and unlocking
Factory setting
Global unlocking
Press buttonŒ.
All turn signal lamps flash once. The
locking knobs in the doors move up.
The anti-theft alarm system is
disarmed.
The vehicle will lock again automatically
and reactivate the anti-theft alarm system
within approximately 40 seconds of un-
locking if

neither door nor tailgate is opened

the SmartKey is not inserted in the
starter switch

the central locking switch is not
activated
Warning!G
When leaving the vehicle, always remove the
SmartKey from the starter switch, take it
with you and lock the vehicle. Do not leave
children unattended in the vehicle, or with
access to an unlocked vehicle. It is possible
for children to open a locked door from the
inside, which could result in an accident
and/or serious personal injury.
!To prevent possible malfunction, avoid ex-
posing the SmartKey to high levels of electro-
magnetic 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
interference, 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.
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* using the SmartKey, see “Summer open-
ing feature” (
page 254) and “Convenience
closing feature” (
page 256).

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.

125 Controls in detail
Locking and unlocking
Limiting opening height of tailgate*
Vehicles with power tailgate*:
The tailgate opening height can be limited
when transporting goods on a roof rack*
(e.g. presence of an MB sport luggage con-
tainer*). When activated, the tailgate
opens to approximately 6.4 ft (1.95 m).
Activate the limiting opening height of
tailgate using the control system
(
page 189).
Closing the tailgate
Closing the tailgate from the inside
electrically*
In vehicles with power tailgate* you can
close the tailgate from the inside using the
remote tailgate switch.
Press remote tailgate switch1
(
page 124) until tailgate begins to
close.
The tailgate closes. The indicator lamp
in the remote tailgate switch goes out.
While the tailgate is closing an acoustic
signal sounds.
To interrupt the closing procedure:
Press or pull remote tailgate switch1
(
page 124).
!The tailgate swings open upwards automat-
ically. Always make sure there is sufficient over-
head clearance. To stop the opening procedure,
press or pull remote tailgate switch1 or press
theŠ button on the SmartKey or SmartKey
with KEYLESS-GO*. The tailgate stops moving.
iThe tailgate can also be opened using
theŠ button on the SmartKey (
page 115)
or SmartKey with KEYLESS-GO* (
page 121).
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.


126 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.
Once the tailgate touches the latch,
the tailgate will pull itself shut automat-
ically.
Warning!G
Only drive with the tailgate closed as,
among other dangers such as blocked
visibility, exhaust fumes may enter the
vehicle interior.
Warning!G
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.
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
unattended in the vehicle, 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
vehicle interior.