2007 MERCEDES-BENZ R320CDI ESP

39 Getting started
Unlocking
Unlocking with KEYLESS-GO*
With the KEYLESS-GO function, you can
lock or unlock the vehicle without using
the remote control buttons on the
SmartKey and start the engine without
inserting the SmartKey into the starter
switch.Grasp an outside door handle or the
tailgate handle.
All turn signal lamps flash once. The
vehicle unlocks. The locking knobs in
the doors move up. The anti-theft alarm
system is disarmed. The locator light-
ing comes on if the feature is enabled
in the control system (
page 184).
Enter the vehicle.
For more information, see “SmartKey with
KEYLESS-GO*” (
page 116).
Starter switch positions
iTo unlock the vehicle, the SmartKey with
KEYLESS-GO must be outside the vehicle, no
further than approximately 3 feet (1 meter) away
from the respective door.
Warning!G
When leaving the vehicle, always take the
SmartKey with KEYLESS-GO* 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.
i If 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.
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
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.

40 Getting started
Unlocking
SmartKey
Starter switch
0For removing SmartKey
1Power supply for some electrical
consumers, such as seat adjustment
2Ignition (power supply for all electrical
consumers) and driving position
All lamps (except high beam headlamp
indicator lamp and turn signal indicator
lamps unless activated) in the instru-
ment cluster come on. If a lamp in the
instrument cluster fails to come on
when the ignition is switched on, have
it checked and replaced if necessary. If
a lamp in the instrument cluster remains on after starting the engine or
comes on while driving, refer to “Lamps
in instrument cluster” (
page 420).
3Starting position
iWhen you switch on the ignition, the
indicator and warning lamps (except high beam
headlamp indicator lamp and turn signal indica-
tor lamps unless activated) in the instrument
cluster come on. The indicator and warning
lamps (except high beam headlamp indicator
lamp and turn signal indicator lamps if activated)
will go out when the engine is running.
This indicates that the respective systems are
operational.
iWhen the SmartKey is removed from the
starter switch and the automatic transmission is
in a position other thanP, the automatic
transmission automatically shifts toP.
!If the SmartKey cannot be turned in
the starter switch, the battery may not be
sufficiently charged.

Check the battery and charge it if necessary
(
page 506).

Get a jump start (page 514).
To prevent accelerated battery discharge or a
completely discharged battery, always remove
the SmartKey from the starter switch when the
engine is not in operation.

41 Getting started
Unlocking
SmartKey with KEYLESS-GO*
Vehicles equipped with the KEYLESS-GO
feature are supplied with a SmartKey with
integrated KEYLESS-GO function and a
removable KEYLESS-GO start/stop
button.
With the KEYLESS-GO start/stop button
inserted and the SmartKey with
KEYLESS-GO present in the vehicle, press-
ing the KEYLESS-GO start/stop button

without the brake pedal depressed
corresponds to the various starter
switch positions (
page 42)

with the brake pedal firmly depressed
will start the engine (
page 55)
If you wish or should there be a need to
insert the SmartKey with KEYLESS-GO in
the starter switch, the KEYLESS-GO
start/stop button can be easily removed
by pulling it out of the starter switch.1KEYLESS-GO start/stop button
2Starter switch
KEYLESS-GO start/stop button
3USA only
4Canada only
The SmartKey with KEYLESS-GO must be
located in the vehicle.
Insert KEYLESS-GO start/stop
button1 into starter switch 2 (if not
inserted already).
Make sure the automatic transmission
is set toP.
Do not depress the brake pedal.
iThe KEYLESS-GO start/stop button does
not need to be removed from the starter switch
when you leave the vehicle. However, always
take the SmartKey with KEYLESS-GO with you
when you leave the vehicle. As long as the
S m a r t K e y w i t h K E Y L E S S - G O i s i n t h e v e h i c l e , t h e
vehicle’s electrical systems can be switched on
or the engine can be started using the
KEYLESS-GO start/stop button.

42 Getting started
Unlocking
Position 0
Before you press the KEYLESS-GO
start/stop button, the vehicle’s on-board
electronics have status0 (as with
SmartKey removed).
Position 1
Press the KEYLESS-GO start/stop
button once.
This supplies power for some electrical
consumers, such as seat adjustment.Ignition (or Position 2)
Press the KEYLESS-GO start/stop
button twice.
This supplies power for all electrical
consumers.
All lamps (except high beam headlamp
indicator lamp and turn signal indicator
lamps unless activated) in the instru-
ment cluster come on. If a lamp in the
instrument cluster fails to come on
when the ignition is switched on, have
it checked and replaced if necessary. If
a lamp in the instrument cluster
remains on after starting the engine or
comes on while driving, refer to “Lamps
in instrument cluster” (
page 420).For information on starting the engine
using the KEYLESS-GO start/stop button,
see “Starting with KEYLESS-GO*”
(
page 55).
For more information on KEYLESS-GO, see
“SmartKey with KEYLESS-GO*”
(
page 116).
iIf you now press the KEYLESS-GO
start/stop button

once more, the ignition (position2) is
switched on

twice more, the power supply is again
switched off
iIf you now press the KEYLESS-GO
start/stop button once more, the power supply
is again switched off.
iWhen you switch on the ignition, the
indicator and warning lamps (except high beam
headlamp indicator lamp and turn signal indica-
tor lamps unless activated) in the instrument
cluster come on. The indicator and warning
lamps (except high beam headlamp indicator
lamp and turn signal indicator lamps if activated)
will go out when the engine is running.
This indicates that the respective systems are
operational.

43 Getting started
Adjusting
Adjusting
Seats
Warning!G
All seat, head restraint, steering wheel, and
rear view mirror adjustments, as well as
fastening of seat belts, must be done before
the vehicle is put into motion.
Warning!G
Do not adjust the driver’s seat while driving.
Adjusting the seat while driving could cause
the driver to lose control of the vehicle.
Never ride in a moving vehicle with the seat
back in an excessively reclined position as
this can be dangerous. You could slide
under the seat belt in a collision. If you slide
under it, the belt would apply force at the
abdomen or neck. That could cause serious
or fatal injuries. The seat backrest and seat
belts provide the best restraint when the
wearer is in a nearly upright position and
belts are properly positioned on the body.
Your seat must be adjusted so that you can
correctly fasten your seat belt (
page 51).
Never place hands under the seat or near
any moving parts while a seat is being
adjusted.
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.
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 power seats can be operated when the
respective door is open.
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.
Warning!G
According to accident statistics, children
are safer when properly restrained in the
rear seating positions than in the front seat-
ing 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
appropriate infant or toddler restraint, or
booster seat recommended for the size and
weight of the child. For additional informa-
tion, see “Children in the vehicle”
(
page 84).
A child’s risk of serious or fatal injuries is
significantly increased if the child restraints
are not properly secured in the vehicle and
the child is not properly secured in the child
restraint.

44 Getting started
Adjusting
Seat adjustment
The seat adjustment switch is located on
the entry side of each front seat base.
1 Head restraint height (vehicles with
memory function)*
2Seat cushion tilt
3Seat height
4Seat backrest tilt
5 Seat fore and aft adjustmentSwitch on the ignition (page 40).
or
Open the respective door (vehicles
with memory function*).
The seat can be adjusted with the re-
spective door opened.
or
Open a front door (vehicles without
memory function*).
The seat can be adjusted within
3 minutes after either front door has
been opened.
!When moving the seat, make sure there are
no items in the footwell or behind the seat.
Otherwise you could damage the seat.
!When the second-row seats are folded
forward, e.g. for cargo compartment expansion
(
page 301), 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 (
page 215). If the head restraint is in
the uppermost position, it could hit and damage
the sun visor.
iThe memory function* (page 144) lets
you store the settings for the seat position to-
gether with the settings for the steering wheel
and the exterior rear view mirrors.

45 Getting started
Adjusting
Seat fore and aft adjustment
Press the switch forward or backward
in direction of arrow5.
Adjust the seat to a comfortable
seating position that still allows you to
reach the accelerator/brake pedal
safely. The position should be as far to
the rear as possible, consistent with
ability to properly operate controls.
Seat height
Press the switch up or down in
direction of arrow3.
Seat cushion tilt
Press the switch up or down in
direction of arrow2 until your upper
legs are lightly supported.
Seat backrest tilt
Press the switch forward or backward
in direction of arrow4 until your arms
are slightly angled when holding the
steering wheel.Head restraint height
Vehicles with memory function*:
Press switch (page 44) up or down in
direction of arrow1.
Vehicles without memory function:
1Head restraint
2Release button
Warning!G
Do not drive the vehicle without the seat
head restraints. Head restraints are
intended to help reduce injuries during an
accident.
With a third-row seat occupied, make sure
to move the respective head restraint up
from the lowest non-use position and have
the occupant adjust the head restraint
properly.
For your protection, drive only with properly
positioned and engaged head restraints.
Adjust the head restraint in such a way 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 attempt to remove front seat head
restraints. They can only be removed by qualified
technicians. We recommend that you have this
work carried out by an authorized
Mercedes-Benz Light Truck Center.


48 Getting started
Adjusting
Make sure that

you can reach the steering wheel with
your arms slightly bent at the elbows

you can move your legs freely

all displays (including malfunction and
indicator lamps) on the instrument
cluster are clearly visible
The steering wheel adjustment stalk is
located on the lower left of the steering
column.1Adjusting steering wheel, in or out
2Adjusting steering wheel, up or down
Switch on the ignition (page 39).
or
Open the driver’s door.
Adjusting steering wheel in or out
Move stalk forward or back in direction
of arrow1.
Adjusting steering wheel up or down
Move stalk up or down in direction of
arrow2.
Mirrors
Adjust the interior and exterior rear view
mirrors before driving so that you have
a good view of the road and traffic
conditions.iThe memory function* (page 144) lets
you store the settings for the steering wheel
together with the settings for seat positions and
the exterior rear view mirrors.
Warning!G
In case of an accident, liquid electrolyte may
escape the mirror housing if the mirror glass
breaks.
Electrolyte has an irritating effect. Do not
allow the liquid to come into contact with
eyes, skin, clothing, or respiratory system.
In case it does, immediately flush affected
area with water, and seek medical help if
necessary.
!Electrolyte drops coming into contact with
the vehicle paint finish can only be completely
removed while in their liquid state and by apply-
ing plenty of water.