Mercedes-Benz A-Class 2020, Operator'S Manual, Page: 38 / 434

* 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 ® : If the front seat belt
is not pulled tight across your body, the seat belt
adjustment may automatically 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 36).
Releasing seat belts
#
Press the release button in the seat belt
buckle and guide the seat belt back with the
seat belt tongue.
Activating/deactivating seat belt adjustment
via the multimedia system
Multimedia system:
4
©
5
Settings
5
Vehicle
#
Activate or deactivate Belt Adjustment .
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.
36 Occupant safety