2004 MERCEDES-BENZ C320 Owner's Manual

89 Controls in detail
Locking and unlocking
Separately locking the trunkThe lock is located next to the recessed
handle.
1Neutral position
2Locked

Close the trunk lid (
page 87).

Pull the mechanical key out of the
SmartKey (
page 305).

Insert the mechanical key in the trunk
lid lock.

Turn the mechanical key clockwise to
position2.
The trunk remains locked even when the
vehicle is centrally unlocked.
iThe emergency release button does
not open the trunk lid if the vehicle
battery is discharged or disconnected.iIf the emergency release button is
pressed and the vehicle was centrally
locked, the exterior lamps will flash and
the alarm will sound as the trunk lid
opens.
To cancel the alarm, do one of the
following:

Press buttonŒ or‹ on the
SmartKey.


Insert the SmartKey in the starter
switch.
iYour vehicle may be equipped with a
function permitting the separate lock-
ing of the trunk using the mechanical
key. If present, this feature can permit
you to deny any unauthorized person
access to the trunk by locking the trunk
separately and leaving the SmartKey
less the mechanical key with the
vehicle.
To verify the presence of this feature,
use the mechanical key to lock the
trunk and then attempt to open the
trunk by pulling on the trunk lid handle
after the vehicle has been centrally
unlocked with the SmartKey.

90 Controls in detailLocking and unlockingSeparately unlocking the trunk
Pull the mechanical key out of the
SmartKey (
page 305).

Insert the mechanical key in the trunk
lid lock.

Turn the mechanical key
counterclockwise to neutral
position1 (
page 89).
You can now open the trunk (
page 86).
A minimum height clearance of 5.71 ft
(1.74 m) is required to open the trunk lid.
Automatic central locking
The doors and the trunk automatically lock
when the ignition is switched on and the
wheels are turning at vehicle speeds of ap-
proximately 9mph (15km/h) or more.
You can open a locked door from the in-
side. Open door only when conditions are
safe to do so.For more information on towing the vehi-
cle, see see “Towing the vehicle”
(
page 328).
You can deactivate the automatic locking
mode using the control system, see “Set-
ting automatic locking” (
page 133).
iYou can only cancel the separate trunk
locking mode by means of the mechan-
ical key.
Warning!
G
Only drive with the trunk closed. Among
other dangers, such as your view being
blocked, exhaust fumes may enter the
vehicle interior.
iThe doors unlock automatically after an
accident if the force of the impact
exceeds a preset 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

91 Controls in detail
Locking and unlocking
Locking and unlocking from the inside
You can lock or unlock the doors and the
trunk from inside using the central locking
switch. This can be useful, for example, if
y o u w a n t t o l o c k t h e v e h i c l e b e f o r e s t a r t i n g
to drive.
The fuel filler flap will not be locked or
unlocked with the central locking switch.The switch is located in the center console.
Central locking switch1Locking
2Unlocking
Locking
Press upper switch position1 of
central locking switch.
If all doors are closed, the vehicle
locks.Unlocking

Press lower switch position2 of
central locking switch.
The vehicle unlocks.
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. Unsuper-
vised use of vehicle equipment may cause
an accident and/or serious personal injury.
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 using the SmartKey, it will not
unlock using the central locking switch.
If the vehicle was previously locked
with the central locking switch

while in the selective remote con-
trol mode, only the door opened
from the inside is unlocked.


while in the global remote control
mode, the complete vehicle is
unlocked when a door is opened
from the inside.

92 Controls in detailSeats
SeatsFor information on seat adjustment, see
“Seats” (
page 32).
Easy-entry/exit feature*
With the easy-entry/exit feature activated,
the steering wheel tilts upwards and the
driver’s seat moves to the rear.
This allows easier entry into and exit from
the vehicle when the driver’s door is
opened. However, the engine must be
turned off.
When the SmartKey is inserted in the
starter switch and the driver’s door is
closed, the steering wheel and the driver’s
seat return to their last set positions.You can activate the following functions:


Steering column:
Only the steering column is adjusted.


Steering column and seat:
The steering column and the seat are
adjusted.
The easy-entry/exit feature can be
switched on or off in the convenience
submenu of the control system
(
page 133).
Warning!
G
You must make sure no one can become
trapped or injured by the moving steering
wheel and the driver’s seat when the
easy-entry/exit feature* is activated, the
driver’s door is being opened and the engine
is turned off or the SmartKey is removed
from the starter switch.
Do not leave children unattended in the
vehicle, or with access to an unlocked
vehicle. Children could open the driver’s
door and unintentionally activate the
easy-entry/exit feature*, which could result
in an accident and/or serious personal
injury.
iTo cancel seat/steering wheel
movement, do one of the following:

Press the seat adjustment switch*
(page 28)


Move the steering column stalk*
(page 37)


Press the memory button*
(page 28)

93 Controls in detail
Seats
Removing and installing front seat head restraints
For information on head restraint
adjustment, see “Seats” (
page 32).
Front seat head restraints, manual seat
1Release buttonRemoving front seat head restraints

Pull head restraint to its highest
position.

Push release button1 and pull out
head restraint.
Installing front seat head restraints

Insert head restraint and push it down
until it engages.

Push release button1 and adjust
head restraint to desired position.
Warning!
G
For your protection, drive only with properly
positioned head restraints.
Adjust head restraint so that 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 intend-
ed to help reduce injuries during an acci-
dent.
Do not interchange head restraints from
front and rear seat.
iTilt the backrest to the rear for easier
removal and installation of the head
restraints.

94 Controls in detailSeatsFront seat head restraints, power seat*
Removing front seat head restraints
Press switch1 upwards and hold until
head restraint is fully extended.

Pull out head restraint.
Installing front seat head restraints

Press switch1 upwards and hold for
about five seconds.

Push head restraint down until it
engages.

Adjust head restraint to desired
position (
page 35).
Rear seat head restraints
Head restraint height (rear outer seats)
1Release button
Raising:
Manually adjust the height of the head
restraint by pulling it upward.
If the head restraint is fully retracted,
push release button1 and pull the
head restraint out.Lowering:

To lower the head restraint, push
release button1 and push down on
the head restraint.Warning!
G
For your protection, drive only with properly
positioned head restraints.
Adjust head restraint so that 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.!The center rear seat head restraint
cannot be adjusted.

95 Controls in detail
Seats
Folding head restraints back with
release button
T h e r e a r s e a t h e a d r e s t r a i n t s c a n b e f o l d e d
backward for increased visibility.
1Release button
Push release button1.
The head restraints will fold backward.Folding head restraints back with
switch in the center console
1Head restraint release switch

Start the engine.

Press the symbol-side on the rocker
switch1 to release the head
restraints.
The head restraints will fold backward.Placing head restraints upright

Pull the head restraint forward until it
locks into position.
iYou can also fold the head restraints
back using the switch in the center
console (
page 95).
Warning!
G
For safety reasons, always drive with the
rear head restraints in the upright position
when the rear seats are occupied.
Keep the area around head restraints clear
of articles (e.g. clothing) to not obstruct the
folding operation of the head restraints.

96 Controls in detailSeatsHead restraint tilt
Two different head restraint angle
positions are available.
Press the release button (
page 95)
and tilt the head restraint to the
desired position.Removing and installing rear seat head
restraints (outer seats)
1Release button
Removing rear seat head restraints

Fold back head restraint (
page 95).

Pull head restraint to its highest
position.

Push release button1 and pull out
head restraint.
!Make sure the head restraints engage
when placing them upright. Otherwise
their protective function cannot be as-
sured.
Warning!
G
For your protection, drive only with properly
positioned head restraints.
Adjust head restraint so that the head re-
straint 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 ac-
cident or similar situation.
Do not drive the vehicle without the seat
head restraints. Head restraints are intend-
ed to help reduce injuries during an acci-
dent.
Do not interchange head restraints from
front and rear seat.!The center rear seat head restraint
cannot be removed.