2003 MERCEDES-BENZ CLK320 CABRIOLET key

47 Seats
Te ch n i c a l
data Instruments
and controlsOperationDrivingInstrument
cluster displayPractical hints Car care Index Roll bar and head restraints, rear
The rear head restraints are integrated in the roll bar.
The roll bar will be automatically raised in an accident
or in a potentially dangerous driving situation. A ratchet
noise can be heard when the roll bar is automatically
raised.
The roll bar can be lowered again after an automatic
deployment by pressing the upper half of the roll bar
switch (for at least 8 seconds) until the roll bar drive
mechanism audibly engages. Then press the lower half
of the switch to lower the roll bar.
If the roll bar was raised using the switch, it will be
automatically lowered when activating the soft top
switch.
Wa r n i n g !
Raising or lowering of the roll bar could injure rear
seated occupants. Before operating the roll bar switch make sure that
the roll bar’s path is clear and no persons due to
inattention are injured by the moving roll bar. For your own safety we recommend to drive with
the roll bar raised, if
• the outside temperature is below +5
°F (-15
°C).
• the rear seats are occupied by passengers.
Before working on the vehicle, e.g. when changing
wheels, the roll bar should be raised with the
switch, and the electronic key should be removed
from the steering lock, to prevent possible injury. In case of potential danger release the switch to
immediately interrupt the operating procedure.

48 Seats
Te ch n i c a l
data Instruments
and controlsOperationDrivingInstrument
cluster displayPractical hints Car care Index
Switch for roll bar and head restraints, rear
The switch is located in the center console.
Turn electronic key in steering lock to position 2.
Press switch:
1Raise roll bar
2Lower roll bar
The lowering or raising procedure is immediately
interrupted by releasing the roll bar switch. With the engine running and the roll bar lowered, the
warning lamp in the roll bar switch will blink for
approx. 15 seconds. The blinking is reminding you to
raise the roll bar if the rear passenger seats are
occupied. See also page 229 for roll bar warning lamp.
Important!
The roll bar is intended to be a safety enhancement to
the other features designed into the vehicle. No system
in any vehicle can eliminate the possibility of serious
injury or fatality in an accident. Properly fastened seat
belts and child restraints must be used!
Notes:
If the warning lamp in the switch comes on, then a
malfunction has been detected. In this case, drive only
with the roll bar raised until the problem has been
corrected. Raise the roll bar by pressing the upper half
of the roll bar switch.
Have the system checked at your authorized
Mercedes-Benz Center as soon as possible.
Items being transported in the rear passenger
compartment should be placed in such a manner as not
to affect the movement of the roll bar when being
raised.
P91.59-2001-26
12

49 Seats
Te ch n i c a l
data Instruments
and controlsOperationDrivingInstrument
cluster displayPractical hints Car care Index Backrest
1Release lever
Folding forward:
Lift release lever (1) and fold backrest forward. The seat
will automatically slide forward and the head restraint
will move down.
Folding back:
Lift release lever (1) and fold backrest back. The seat
and head restraint return to their previous positions.
To interrupt the procedure, activate the power seat
switch.Notes:
The automatic seat slide is provided with a safety
feature. The automatic process is interrupted, if the
backrest of the sliding seat is pushed against an
occupant or object. The seat will slide forward, stop, and
make 3 attempts sliding backward.
To halt the automatic process, activate the power seat
switch. Investigate and correct the cause of interruption.
Now use memory button or power seat switch to bring
seat into desired position.
The backrest release lever (1) also serves as a rest for
the front seat belt, bringing it within easy reach.
Wa r n i n g !
When leaving the vehicle, always remove the
electronic key from the steering lock, and lock your
vehicle.The power seats can also be operated with the
driver’s or passenger door open. 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.Never place hands under seat or near any moving
parts during a seat adjustment procedure.

50 Seats
Te ch n i c a l
data Instruments
and controlsOperationDrivingInstrument
cluster displayPractical hints Car care Index
Multicontour seat (optional)
Some models may be equipped with multicontour seats.
These seats have movable seat cushions, and inflatable
air cushions built into the backrest to provide additional
lumbar and side support.We recommend to adjust the multicontour seat in the
following order:
1Seat cushion depth
Slide the switch fore or aft until your legs are
supported comfortably.
2Backrest bottom
3Backrest center
4Side bolster adjustment
Adjust the side bolster to provide good lateral
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 steering lock to position 2.
The side bolsters of the backrest can be adjusted with
rocker switch (4):
•press to the right – increase side support,
•press to the left – 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.
1
2
3
4
P91.25-2063-26

51 Seats
Te ch n i c a l
data Instruments
and controlsOperationDrivingInstrument
cluster displayPractical hints Car care Index Heated seats, front (optional)
The front seat heater switches are located in the center
console.
The front seat heaters can be switched on with the
electronic key in steering lock positions 1 or 2.
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 automatically
switches to normal operation and only 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.
P54.25-2036-26
12

54 Restraint systems
Te ch n i c a l
data Instruments
and controlsOperationDrivingInstrument
cluster displayPractical hints Car care Index
Note:
For cleaning and care of the seat belts, see page 304.
Seat belt nonusage warning system
With the electronic key in steering lock position 2, a
warning sounds for a short time if the driver’s seat belt
is not fastened. See also seat belt warning lamp on
page 228.
Wa r n i n g !
Never ride in a moving vehicle with the backrest
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 even fatal injuries. The
backrest and seat belt provide the best restraint
when the wearer is in an upright position and the
belt is properly positioned on the body.
Wa r n i n g !
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 for injury or
death is lessened if you are wearing your seat belt.Wa r n i n g !
Never let more people ride in the vehicle than there
are seat belts available. Be sure everyone riding in
the vehicle is correctly restrained with a separate
seat belt.

57 Restraint systems
Te ch n i c a l
data Instruments
and controlsOperationDrivingInstrument
cluster displayPractical hints Car care Index Caution!
For safety reasons, avoid adjusting the seat or backrest
into positions which could affect the correct seat belt
position.
Wa r n i n g !
USE SEAT BELTS PROPERLY.• Seat belts can only work when used properly.
Never wear seat belts in any other way than as
described in this section, as that could result
in serious injuries in case of an accident.• E ach oc c upan t s houl d wear t hei r s ea t bel t a t al l
times, because seat belts help reduce the
likelihood of and potential severity of injuries
in accidents, including rollovers. The
integrated restraint system includes SRS
(driver airbag, front passenger airbag, door
mounted side impact airbags), ETD (seat belt
emergency tensioning devices), and front seat
knee bolsters. The system is designed to
enhance the protection offered to properly
belted occupants in certain frontal (front
airbags) and side (side impact airbags) impacts
which exceed preset deployment thresholds.
• Never wear belts over rigid or breakable
objects in or on your clothing, such as
eyeglasses, pens, keys etc., as these might
cause injuries.• Never wear the shoulder belt under your arm,
against your neck or off your shoulder. In a
crash, your body would move too far forward.
That would increase the chance of head and
neck injuries. The belt would also apply too
much force to the ribs or abdomen, which
could severely injure internal organs such as
your liver or spleen.• Position the lap belt as low as possible on your
hips and not across the abdomen. If the belt is
positioned across your abdomen, it could cause
serious injuries in a crash.• Each seat belt should never be used for more
than one person at a time. Do not fasten a seat
belt around a person and another person or
other objects.• Belts should not be worn twisted. In a crash,
you wouldn’t have the full width of the belt to
manage impact forces. The twisted belt against
your body could cause injuries.

59 Restraint systems
Te ch n i c a l
data Instruments
and controlsOperationDrivingInstrument
cluster displayPractical hints Car care Index BabySmart
TM airbag deactivation system
Special BabySmart
TM compatible child seats, designed
for use with the Mercedes-Benz system and available at
any authorized Mercedes-Benz Center are required for
use with the BabySmart
TM airbag deactivation system.
With the special child seat properly installed, the
passenger front airbag will not deploy. The 7
indicator lamp located on the center console will be
illuminated, except with electronic key removed or in
steering lock position 0. The system does not deactivate
the door mounted side impact airbag.
BabySmart
TM is a trademark of Siemens Automotive Corp.
Self-test BabySmart
TM
without special child seat installed
After turning electronic key in steering lock to
position 1 or 2, the 7 indicator lamp located on the
center console comes on for approx. 6 seconds and then
extinguishes.
If the indicator lamp should not come on or is
continuously lit, the system is not functioning. You must
see an authorized Mercedes-Benz Center before seating
any child on the front passenger seat.
Wa r n i n g !
The BabySmart
TM airbag deactivation system will
ONLY work with a special child seat designed to
operate with it. It will not work with child seats
which are not BabySmart
TM compatible.
Never place anything between seat cushion and
child seat (e.g. pillow), since it reduces the
effectiveness of the deactivation system. The
bottom of the child seat must make full contact
with the passenger seat cushion. An incorrectly
mounted child seat could cause injuries to the
child in case of an accident instead of protecting
the child.
Follow the manufacturer’s instructions for
installation of special child seats.When using a BabySmart
TM compatible child seat
on the front passenger seat, the front passenger
airbag will not deploy only if the 7 indicator
lamp remains illuminated.
Please be sure to check the indicator every time
you use the special system child seat.Should the light go out while the restraint is
installed, please check installation. If the light
remains out, do not use the BabySmart
TM restraint
to transport children on the front passenger seat
until the system has been repaired.