MERCEDES-BENZ C320 2001 W203 Workshop Manual

42 Seats
Te ch n i c a l
data Instruments
and controlsOperationDrivingInstrument
cluster displayPractical hints Car care Index
Front seat adjustment
To operate the front power seat adjustment switches,
turn the electronic key in starter switch to position 1
or 2 (with a front door open, the power seats can also be
operated with the electronic key removed or in starter
switch position 0).
Wa r n i n 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
reclined. Sitting in an excessively reclined position
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 back
and seat belts provide the best restraint when the
wearer is in an upright position and belts are
properly positioned on the body.Never place hands under seat or near any moving
parts while a seat is being adjusted.
When leaving the vehicle always remove the
electronic key from the starter switch, and lock
your vehicle. The power seats can also be operated with the
driver’s or front passenger door open. Do not leave
children unattended in the vehicle, or with access
to an unl ocked vehic l e. Uns upervi s ed us e of vehi cl e
equipment may cause serious personal injury.

43 Seats
Te ch n i c a l
data Instruments
and controlsOperationDrivingInstrument
cluster displayPractical hints Car care Index Power seat
The switches are located in each front door.We recommend to adjust the power seat in the following
order:
1Seat, up / down
Press the switch (up / down direction) until
comfortable seating position with still sufficient
headroom is reached.
2Seat adjustment, fore / aft
Press the switch (fore / aft direction) until a
comfortable seating position is reached that still
allows you to reach the accelerator / brake pedal
safely. The position should be as far rearward as
possible, consistent with ability to properly operate
controls.
3Seat cushion tilt
Press the switch in the direction of the arrow until
your legs are lightly supported.
4Backrest tilt
Press the switch in the direction of the arrow until
your arms are slightly angled when holding the
steering wheel.

44 Seats
Te ch n i c a l
data Instruments
and controlsOperationDrivingInstrument
cluster displayPractical hints Car care Index
5Head restraint
The height of the head restraint is adjusted
automatically with the seat so that the back of the
head is supported approximately at ear level. Adjust
the head restraint using the switch to support the
back of your head approximately at ear level.
Only minor personal adjustments, as described
below, should then be required.
For exterior rear view mirrors, see page 81;
inside rear view mirror, see page 80;
steering wheel adjustment, see page 79.
Adjust the head restraint angle by hand. Push or pull
the head restraint in direction of arrow.
Storing seat positions:
The head restraint, steering wheel and exterior rear
view mirror position are stored together with the seat
position.
See page 85 for notes on the memory function. For
recalling a stored seat / head restraint / steering wheel /
and exterior rear view mirror position see page 86.

45 Seats
Te ch n i c a l
data Instruments
and controlsOperationDrivingInstrument
cluster displayPractical hints Car care Index Manual seat
(Standard equipment on Model C 240)We recommend to adjust the seat in the following order:
1Fore/aft adjustment
Lift handle (1), slide seat to desired position and
allow handle to reengage. Check for proper
engagement before driving.
2Seat cushion tilt
Turn handwheel (2) forward or backward.
3Seat height adjustment
Press the switch (3) in the direction of the arrow
until your legs are lightly supported.
4Backrest tilt
Press the switch (4) in the direction of the arrow
until your arms are slightly angled when holding
the steering wheel.

46 Seats
Te ch n i c a l
data Instruments
and controlsOperationDrivingInstrument
cluster displayPractical hints Car care Index
5Head restraint height
Raising:
Pull up on head restraint.
Lowering:
Push button (5) and push down on head restraint.
Adjust head restraint to support the back of the head
approximately at ear level. The head restraint
inclination can also be adjusted manually.Head restraint inclination
Push or pull the head restraint in direction of arrow.

47 Seats
Te ch n i c a l
data Instruments
and controlsOperationDrivingInstrument
cluster displayPractical hints Car care Index Removal and installation of front seat head
restraints
Power seat
Caution!
Do not remove head restraints except when mounting
seat covers. Whenever restraints have been removed be
sure to reinstall them before driving.Note:
Tilt the backrest rearward for easier removal and
installation of the head restraints.
To r e m ove :
Press switch (1) upwards and hold until the head
restraint is fully extended. Pull head restraint out.
To i n st a l l :
Press switch (1) upwards and hold for about 5 seconds.
Press the head restraint down until it engages.
Adjust head restraint to the desired position.
Wa r n i n g !
For your protection, drive only with properly
positioned head restraints.Adjust head restraint to support the back of the
head approximately at ear level.Do not drive the vehicle without the seat head
restraints. Head restraints are intended to help
reduce injuries during an accident.

48 Seats
Te ch n i c a l
data Instruments
and controlsOperationDrivingInstrument
cluster displayPractical hints Car care Index
Manual seat
To remove:
Pull head restraint to its highest position. Push
button (1) and pull out head restraint completely.
To install:
Insert head restraint and push it down to the stop. Push
button (1) and adjust head restraint to the desired
position.
Wa r n i n g !
For your protection, drive only with properly
positioned head restraints.Adjust head restraint to support the back of the
head approximately at ear level.Do not drive the vehicle without the seat head
restraints. Head restraints are intended to help
reduce injuries during an accident.

49 Seats
Te ch n i c a l
data Instruments
and controlsOperationDrivingInstrument
cluster displayPractical hints Car care Index Multicontour seat (optional)
We recommend to adjust the multicontour seat in the
following order:
1Seat cushion depth
2Backrest bottom
3Backrest center
4Side bolster adjustmentSome models may be equipped with driver’s
multicontour seat. These seats have movable seat
cushions and inflatable air cushions built into the
backrest to provide additional lumbar and side support.
The seat cushion movement and amount of backrest
cushion height and curvature can be continuously
varied with regulators (1, 2 and 3) after turning the
electronic key in starter switch to position 2.
The side bolsters of the backrest can be adjusted with
rocker switch (4):
•press to the left –
increase side support,
•press to the right –
decrease side support.
If the engine is turned off, the last cushion setting is
retained in memory, and automatically adjusts the
cushion to this setting when the engine is restarted.

50 Seats
Te ch n i c a l
data Instruments
and controlsOperationDrivingInstrument
cluster displayPractical hints Car care Index
Heated seats (optional)
The front seat heaters can be switched on with the
electronic key in starter switch position 1 or 2.
The switch is located in the center console.Press switch to turn on seat heater:
1Normal seat heating mode. One indicator lamp in
the switch lights up.
2Rapid seat heating mode. Both indicator lamps in
the switch light up. After approximately 5 minutes
in the rapid seat heating mode, the seat heater
autom ati cally s witches to n ormal o peration an d on ly
one indicator lamp will stay on.
Turning off seat heater:
If one indicator lamp is on, press upper half of switch.
If both indicator lamps are on, press lower half of
switch.
If left on, the seat heater automatically turns off after
approximately 30 minutes of operation.

51 Seats
Te ch n i c a l
data Instruments
and controlsOperationDrivingInstrument
cluster displayPractical hints Car care Index Note:
When in operation, the seat heater consumes a large
amount of electrical power. It is not advisable to use the
seat heater longer than necessary.
The seat heaters may automatically switch off if too
many power consumers are switched on at the same
time, or if the battery charge is low. When this occurs,
the indicator lamp in the switch will blink (both
indicator lamps blink during rapid seat heating mode).
The seat heaters will switch on again automatically as
soon as sufficient voltage is available.
If the blinking of the indicator lamps is distracting to
you, the seat heaters can be switched off.