2008 MERCEDES-BENZ C300 seats

90 Controls in detail
Seats
Removing and installing rear seat head
restraints (vehicles with split foldable
rear seat)
1Release button
Removing: Unlock the rear seat back-
rest and fold it slightly forward
(
page 281).
Pull head restraint to its highest
position.
Push release button1 and pull out
head restraint.
Installing: Position the head restraints
so that the notches on the rod are on
the left when looking in the direction of
travel.
Insert head restraint and push it down
until it engages.
Fold the rear seat backrest back until it
engages (
page 282).
Push release button1 and adjust
head restraint to desired position.
Warning!G
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.
iThe rear head restraints cannot be removed
on vehicles which do not have the split foldable
rear seat.
iAdjust the head restraint in such a way that
it is as close to the head as possible.

91 Controls in detail
Seats
Lumbar support
The curvature of the front seats can be ad-
justed to help enhance lower back support
and seating comfort.
1Adjustment lever
Move adjustment lever1 in direction
of arrows until you have reached a
comfortable seating position.
Seat heating*
The buttons for the front seats are located
in the center console. The red indicator
lamps on the button come on to show the
selected heating level.
1Seat heating buttonLevel
3Three indicator lamps on
(highest level)
The seat heating automatically
switches to level2 after approxi-
mately 5 minutes.
2Two indicator lamps on
The seat heating automatically
switches to level1 after approxi-
mately 10 minutes.
1One indicator lamp on
(lowest level)
The seat heating automatically
switches off after approximately
20 minutes.
offNo indicator lamp on

92 Controls in detail
Seats
Switch on the ignition.
Switching on: Press button1 repeat-
edly until the desired heating level is
set.
One or more red indicator lamps on the
button come on to show the selected
heating level.
Switching off: Press button1 repeat-
edly until all indicator lamps go out.
iIf one or more of the lamps on the seat
heating button are flashing once, there is insuffi-
cient voltage available because too many electri-
cal consumers are turned on. The seat heating
switches off automatically.
The seat heating will switch back on again
automatically as soon as sufficient voltage is
available.

103 Controls in detail
Memory function* (Canada only)
MMemory button
1 2 3Memory position buttons
Storing positions into memory*
Adjust the seat (page 85) to the de-
sired position.
On the driver’s side: Adjust the steering
wheel (
page 93) and the exterior rear
view mirrors (
page 97) to the desired
position.
Press memory buttonM.
Release memory buttonM and press
one of the memory position buttons
within 3 seconds.
An acoustic signal sounds to confirm.
The settings are stored with the select-
ed position.
Recalling positions from memory*
Press and hold memory position
button until the seat, steering wheel
and exterior rear view mirrors have
completely moved to the stored
positions.
iThe memory function* is operational at any
time. Seat and steering wheel adjustment is al-
ways possible.
!Do not operate the power seats using the
memory position button if the seat backrest is in
an excessively reclined position. Doing so could
cause damage to front or rear seats.
First move seat backrest to an upright position.
iReleasing the memory position button
immediately stops movement to the stored
positions.

105 Controls in detail
Fastening the seat belts
Fastening the seat belts
For additional information on children in
the vehicle, see “Children in the vehicle”
(
page 51).
Warning!G
Always fasten your seat belt before driving
off. Always make sure all of your passengers
are properly restrained.
Failure to wear and properly fasten and
position your seat belt greatly increases
your risk of injuries and their likely severity
in an accident. You and your passengers
should always wear seat belts.
If you are ever in an accident, your injuries
can be considerably more severe without
your seat belt properly buckled. Without
your seat belt buckled, you are much more
likely to hit the interior of the vehicle or be
ejected from it. You can be seriously injured
or killed.
In the same crash, the possibility of injury or
death is lessened if you are wearing your
seat belt. The air bags can only provide the
protection they were designed to afford if
the occupants are using their seat belts
(
page 36).
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
appropriately sized infant restraint, toddler
restraint, or booster seat recommended for
the size and weight of the child.
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.
Warning!G
Never let more people ride in the vehicle
than there are seat belts available. Be sure
everyone riding in the vehicle is correctly re-
strained with a separate seat belt. Never use
a seat belt for more than one person at a
time.
Warning!G
Never ride in a moving vehicle with the seat
backrest 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 seat belt would apply force at
the abdomen or neck. That could cause se-
rious or even fatal injuries. The seat back-
rest and seat belt provide the best restraint
when the wearer is in a nearly upright posi-
tion and the seat belt is properly positioned
on the body.

106 Controls in detail
Fastening the seat belts
1Seat belt outlet
2Latch plate
3Release button
4Buckle
Pull the seat belt smoothly from the
seat belt outlet1.
Place the shoulder portion of the seat
belt across the top of your shoulder
and the lap portion across your hips.
Push latch plate2 into buckle4 until
it clicks.
If necessary, adjust the seat belt to the
correct height (
page 107).
If necessary, tighten the lap portion to
a snug fit by pulling shoulder portion
up.
To release the seat belt, press release
button3 and guide latch plate2
back to seat belt outlet1.
Proper use of seat belts

Do not twist the seat belt when fasten-
ing.

Adjust seat belt so that the shoulder
portion is located as close as possible
to the middle of the shoulder (it should
not touch the neck). Never pass the
shoulder portion of the seat belt under
your arm.

Position the lap belt as low as possible
on your hips (over hip joint) and not
across the abdomen.

Place the seat backrest in a nearly up-
right position.

Never use a seat belt for more than one
person at a time.

Do not fasten a seat belt around a per-
son and another object at the same
time. When using a seat belt to secure
infant restraints or toddler restraints or
children in booster seats, always follow
the child seat manufacturer’s instruc-
tions.
Warning!G
Read and observe the additional warning no-
tices printed in the “Safety and Security”
section.

120 Controls in detail
Power windows
Opening and closing power windows
The door windows are opened and closed
electrically. The switches

for all door windows are on the driver’s
door

for the front passenger door window
are on the front passenger door

for each rear door window are on the
respective rear door
1Left front door window
2Right front door window
3Right rear door window
4Override switch
5Left rear door window
Warning!G
Do not keep any part of your body up against
the side window pane when opening a win-
dow. The downward motion of the pane may
pull that part of your body down between
the window pane and the door frame and
trap it there. If there is a risk of entrapment,
release the switch and press it again to
close the window.
Warning!G
When closing the windows, make sure there
is no danger of anyone being harmed by the
closing procedure.
Activate the override switch (
page 57)
when children are riding in the back seats of
the vehicle. The children may otherwise in-
jure themselves, e.g. by becoming trapped
in the window opening.
The closing of the door windows can be im-
mediately halted by releasing the switch or,
if the switch was pressed past the resis-
tance point and released, by pressing the
lower part of the respective switch again.
The door windows are equipped with the ex-
press-close and automatic reversal func-
tion. If the window encounters an
obstruction that blocks its path in a circum-
stance where you pressed the switch past
the resistance point and released it to close
the window, the automatic reversal function
will stop the window and open it slightly.

191 Controls in detail
Audio system
Adjusting surround sound
With surround sound, you can choose be-
tween
LOGIC7® On and LOGIC7® Off.
Select Sound
Sound.
A dot R indicates the current setting.
To select a setting: Slidermq or
rotateymz.
To save setting: Press n.
The setting is stored and the menu is
exited.
To exit menu without saving: Press
button í or slideomp.
iThe LOGIC7® On function of the
harman/kardon LOGIC7® Surround Sound sys-
tem permits the playback of discrete 5.1 and ste-
reo recordings with an optimal surround sound
platform for each passenger.
The LOGIC7
® distributes the 5.1 surround infor-
mation over the 13-channel system architecture
to provide the optimum sound experience from
all seats. This produces the sound characteristic
as intended by the sound engineer during the
original recording.
Harman/kardon LOGIC7
® converts all two-chan-
nel stereo sound material into multi-channel sur-
round sound. The surround information stored
during the original recording is read out using
LOGIC7
® and likewise distributed over the
13 channels. No effects are created during this
process; only that which was already there be-
comes audible.
In addition, harman/kardon LOGIC7
® moves the
perceived sound source away from the individual
loudspeakers, thus generating a natural 360°
sound experience for each passenger.
iBy selecting LOGIC7® Off, all compatible
formats are played back as they are present on
the medium. Due to the vehicle’s spatial charac-
teristics, an optimal sound experience is not en-
sured from all seats.
iBalance and fader will be set to the default
value (0/0) automatically by activating or deacti-
vating LOGIC7
®.
iPlease note the following:

For an optimal sound experience from all
seats, the balance and fader should be ad-
justed to the center of the passenger com-
partment with LOGIC7
® switched on.

The best sound results are achieved when
playing high-quality audio CDs.

For MP3 tracks, the bit rate should be at
least 128 kbit/s.

Surround playback cannot be activated in
mono-signal sources as AM or Weatherband.
It will not function for mono-signal sources
as, e.g. mono audio tracks on some specific
audio CDs.

In the case of poor radio reception quality,
e.g. in tunnels, LOGIC7® should be switched
off, as otherwise a dynamic switchover from
stereo to mono and thus temporary sound
characteristic shifts can occur.

With certain stereo recordings, the resulting
sound characteristic may deviate from con-
ventional stereo playback.