seat MERCEDES-BENZ C320 2004 W203 Service Manual

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.

97 Controls in detail
Seats
Installing rear seat head restraints
Insert head restraint and push it down
until it engages.

Push button1 and adjust head
restraint to desired position.
Multicontour seat*
This multicontour seat has a movable seat
cushion and inflatable air cushions built
into the backrest to provide additional
lumbar and side support.
The seat cushion movement, backrest
cushion height and curvature can be con-
tinuously varied with switches on the right
side of the seat after starting the engine.
1Seat cushion depth
2Backrest bottom
3Backrest center
4Backrest side bolster adjustment
Start the engine.Seat cushion depth

Adjust the seat cushion depth to the
length of your upper leg using
switch1.
Backrest contour

Adjust the contour of the backrest to
the desired position using switches2
and3.
Backrest side bolsters

Adjust the backrest side bolsters so
that they provide good lateral support
using switch4.

98 Controls in detailSeatsHeated seats*
Both switches for the front seats are
located in the center console.
1Normal heating
2Rapid heating
Make sure the ignition is switched on.
All the lamps in the instrument cluster
come on.Switching on seat heating

Press upper switch position1.
A red indicator lamp on the switch
comes on.
Switching off seat heating

Press upper switch position1 again.
Switching on rapid seat heating

Press lower switch position2.
Both red indicator lamps on switch
come on.Switching off rapid seat heating

Press lower switch position2 again.
iThe seat heater will be automatically
switched off after approximately
30 minutes.iThe system switches over to normal
heating mode after approximately five
minutes. Only one indicator lamp
remains lit.
!If one or both of the indicator lamps on
the seat heater switch are flashing,
there is insufficient voltage available
since too many electrical consumers
are turned on. The seat heater switches
off automatically.
The seat heater will switch back on
again automatically as soon as suffi-
cient voltage is available.

99 Controls in detail
Memory function*
Memory function*
The memory button and stored position
switch are located on the door.
You can store up to three different settings
per SmartKey.
The following settings are saved for each
stored position:

Driver’s seat and backrest position


Steering wheel position


Driver’s side exterior rear view mirror
position


Passenger side exterior rear view mir-
ror position


Front passenger seat position
These key-dependent memory settings
can be deactivated if desired
(
page 135).
!Prior to operating the vehicle, the driv-
er should check and adjust the seat
height, seat position fore and aft, and
seat backrest angle if necessary, to
ensure adequate control, reach and
comfort. The head restraint should also
be adjusted for proper height. See also
the section on airbags (
page 55) for
proper seat positioning.
In addition, adjust the steering wheel to
ensure adequate control, reach, opera-
tion and comfort. Both the interior and
exterior rear view mirrors should be
adjusted for adequate rear vision.
Fasten seat belts. Infants and small
children should be seated in a properly
secured restraint system that complies
with U.S. Federal Motor Vehicle Safety
Standards 213 and 225 and Canadian
Motor Vehicle Safety Standards 213
and 210.2.
Warning!
G
Do not activate the memory function while
driving. Activating the memory function
while driving could cause the driver to lose
control of the vehicle.

100 Controls in detailMemory function*The memory button and stored position
button are located on the door.
1Memory button
2Stored position button
Make sure the ignition is switched on
or the relevant door is open and the
SmartKey is inserted in the starter
switch.
Storing positions into memory
Adjust the seats, steering wheel and
rear view mirrors to the desired posi-
tion (
page 32).

Turn button2 to selected memory
position.

Press memory button1.

Release memory button and push
button2 within three seconds.
All the settings are stored at the
selected position.
Recalling positions from memory
Turn button2 to selected memory
position.

Press and hold button2 until the seat,
steering wheel and rear view mirrors
have fully moved to the stored posi-
tions.iReleasing the button immediately
stops movement to the stored posi-
tions.Warning!
G
Do not operate the power seats using the
memory button if the seat backrest is in an
excessively reclined position. Doing so
could cause damage to front or rear seats.
First move backrest to an upright position.

134 Controls in detailControl systemActivating easy-entry/exit feature*
Use this function to activate and
deactivate the easy-entry/exit feature.
When the feature is activated, the steering
wheel and driver’s seat will move back to
facilitate exiting when you

remove the SmartKey from the starter
switch


open the driver’s door
However, the engine must be turned off.After entering the vehicle the steering
wheel and seat will move into the position
stored in memory when you


close the driver’s door with the
SmartKey in starter switch position2.


you put the SmartKey in the starter
switch with the driver’s door closed.
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 and
the driver’s door is being opened and the en-
gine is turned off or the SmartKey is re-
moved from the starter switch.
Do not leave children unattended in the ve-
hicle, 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 35)


move the steering column stalk*
(page 37)


press the stored position button*
(page 100)

135 Controls in detail
Control system

Move the selection marker with
theæ orç button to the CONVENIENCE
submenu.

Press buttonj ork repeatedly
until you see this message in the
display:
EASY-ENTRY FEATURE
ACTIVATE.
The selection marker is on the current
setting.

Pressæ orç to change the
easy-entry/exit setting.The following settings are available for
the easy-entry/exit feature:Setting key-dependency
Use this function to set whether the
memory settings for the seats, the steering
wheel and the mirrors should be stored
separately for each SmartKey (
page 99).

Move the selection marker with
theæ orç button to the CONVENIENCE
submenu.

Press buttonj ork repeatedly
until you see this message in the
display:
SETTINGS KEY-DEPENDENT
.
The selection marker is on the current
setting.

Pressæ orç to set
key-dependency to
ON or
OFF
.
OFF
The
easy-entry/exit
feature is
deactivated
STEERING COLUMN
Only the
steering column
is moved
STEERING COLUMN +
SEAT
Both the
steering column
and the seat are
moved

155 Controls in detail
Climate control
Climate control panel
The storage compartment between the
front seats can be ventilated (
page 160).
Item
1
Thumbwheel for air volume control
for left center air vent
2
Left center air vent, adjustable
3
Right center air vent, adjustable
4
Thumbwheel for air volume control
for right center air vent
5
Air volume control for side air vent
6
Side air vent, adjustable
7
Side defroster vent, fixed
8
Climate control paneliFor draft-free ventilation, move the
sliders for the center air vents2, 3
and6 to the middle position.
Item
1
Air volume control
2
Left-side temperature control
3
Right-side temperature control
4
Air distribution control
5
Rear window defroster
6
AC cooling on/off (AC
OFF
)
7
Air distribution and air volume
(automatic mode)
8
Air recirculation
9
Defrosting

212 Controls in detailLoadingRemoving the ski sack
You can remove the ski sack for cleaning
or drying.
1Button
2Ski sack frame
3Flap
Open trunk lid.

Press button1.
The flap3 opens downward.

Press button1 firmly until ski sack
frame2 is released.

Pull ski sack frame2 with ski sack
out.Installing the ski sack
Install the ski sack in the reverse order.

Push ski sack frame2 with ski sack
inward until the ski sack frame snaps
into place.

Close flap3.

Close trunk lid.
Split rear bench seat*
To expand the cargo area, you can fold
down the left and right rear seat backrests.
The two sections can be folded down
separately.
Warning!
G
Never drive vehicle with trunk open while
the ski sack is removed. Deadly carbon
monoxide (CO) gases may enter vehicle in-
terior, resulting in unconsciousness and
death.iTo prevent unauthorized persons from
accessing the trunk, always close the
flap.
Warning!
G
When expanding the luggage area, always
fold the seat cushions fully forward.
Unless you are transporting cargo, the
backrests must remain properly locked in
the upright position.
In an accident, during hard braking or
sudden maneuvers, loose items will be
thrown around inside the vehicle, and cause
injury to vehicle occupants unless the items
are securely fastened in the vehicle.