Mercedes-Benz C-Class Convertible 2021 Operator's Manual page 43

* NOTE Deployment of the Emergency
Tensioning Device and side air bag when
the front passenger seat is unoccupied
If the seat belt tongue is engaged in the seat
belt buckle of the unoccupied front
passenger seat, the Emergency Tensioning
Device and the side air bag may also deploy
in the event of an accident along with other
systems.
Only one person should use each seat
#
belt at any one time.
Vehicles without automatic front passenger
airbag shutoff:
* NOTE Deployment of the Emergency
Tensioning Device when the front-
passenger seat is unoccupied
If the seat belt tongue is engaged in the seat
belt buckle of the unoccupied front-
passenger seat, the Emergency Tensioning
Device may also deploy in the event of an
accident along with other systems.
Only one person should use each seat
#
belt at any one time.
Seat belt adjustment function
®
Vehicles with PRE-SAFE : After a front seat
belt has been fastened, the automatic seat belt
adjustment may apply a certain tightening force.
Do not hold the seat belt tightly while it is
adjusting.
You can activate and deactivate the seat belt
adjustment function using the multimedia sys‐
tem ( page 41).
/
Activating/deactivating seat belt adjustment
via the multimedia system
Multimedia system:
Vehicle î Vehicle Settings
4 5
Belt Adjustment
5
Activate O or deactivate ª the function.
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Occupant safety
Releasing seat belts
Press the release button in the seat belt
#
buckle and guide the seat belt back with the
seat belt tongue.
Seat belt warning function for the driver and
front passenger
The ü seat belt warning lamp in the instru‐
ment display is a reminder that all vehicle occu‐
pants must wear their seat belts correctly.
The ü seat belt warning lamp lights up for six
seconds every time the vehicle is started.
In addition, a warning tone may sound.
When the driver's and front passenger's doors
are closed and the driver and front passenger
have fastened their seat belts, the seat belt
warning goes out.
In the following cases, the seat belt warning
lights up during a journey if:
The vehicle speed exceeds 15 mph
R
(25 km/h) and the driver's or front
passenger seat belt is not fastened.
41