Mercedes-Benz C-Class Operator's Manual page 53

Press the release button in the belt buckle,
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hold the belt tongue firmly and guide the belt
back.
Seat belt adjustment
The seat-belt adjustment is an integral part of
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the PRE-SAFE convenience function. This func-
tion adjusts the driver's and front-passenger
seat belt to the upper body of the occupants.
The belt strap is tightened slightly when:
the belt tongue is engaged in the buckle and
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the ignition is switched on
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The seat-belt adjustment will apply a certain
retraction force if any slack is detected between
the vehicle occupant and the seat belt. Do not
hold on to the seat belt tightly while it is adjust-
ing.
You can switch the seat-belt adjustment on and
off using the multimedia system. Information on
activating and deactivating the seat-belt adjust-
ment function can be found in the Digital Oper-
ator's Manual or in the separate operating
instructions for the multimedia system.
Belt warning for the driver and front
passenger
The 7 seat belt warning lamp in the instru-
ment cluster is a reminder that all vehicle occu-
pants must wear their seat belts. It may light up
continuously or flash. In addition, there may be
a warning tone.
Regardless of whether the driver's seat belt has
already been fastened, the 7 seat belt warn-
ing lamp lights up for six seconds each time the
engine is started. If the front doors are closed
and the driver or front-passenger seat belt has
not been fastened, the 7 seat belt warning
lamp lights up again after the six seconds. As
soon as the driver's and front-passenger seat
belts are fastened or a front door is opened
again, the 7 seat belt warning lamp goes out.
If the driver's seat belt is not fastened after the
engine is started, an additional warning tone will
sound. The warning tone switches off after six
seconds or once the driver's seat belt is fas-
tened.
If the vehicle speed exceeds 15 mph (25 km/h)
and the driver's or front-passenger seat belt is
not fastened, a warning tone sounds again. The
warning tone sounds with increasing intensity
for a maximum of 60 seconds or until the driver
Occupant safety
or front passenger have fastened their seat
belts.
If the driver or front passenger unfasten their
seat belt while the vehicle is in motion, the belt
warning automatically reactivates.
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For more information on the 7 seat belt
warning lamp, see "Warning and indicator
lamps in the instrument cluster, seat belts"
( page 287).
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Air bags
Introduction
The air bag installation point is identified by the
label AIR BAG.
An air bag supplements a correctly fastened
seat belt. However, it is not intended as a sub-
stitute for the seat belt. Air bags provide addi-
tional protection in the event of an accident.
Not all air bags are deployed in an accident. The
various air bag systems work independently of
each other ( page 58).
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There is, however, no system available today
that can completely rule out injury or death.
It is also not possible to rule out a risk of injury
caused by an air bag due to the high speed at
which the air bag must be deployed.
Important safety notes
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WARNING
If you do not sit in the correct seat position,
the air bag cannot protect as intended and
could even cause additional injury when
deployed. This poses an increased risk of
injury or even fatal injury.
To avoid hazardous situations, always make
sure that all of the vehicle's occupants:
have fastened their seat belts correctly,
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including pregnant women
are sitting correctly and maintain the great-
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est possible distance to the air bags
follow the following instructions
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Always make sure that there are no objects
between the air bag and the vehicle's occu-
pants.
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