Srs (Airbag) - Volvo V70 Owner's Manual

SRS system
(airbags in the steering wheel and the dashboard)
The system consists of a gas generator (1) surrounded by the inflatable
airbag (2). Upon a sufficiently violent collision, a sensor (3) reacts,
activating the gas generator igniter, and the airbag inflates as it heats up.
To cushion the impact, the airbag deflates when compressed. When this
occurs, smoke escapes into the car. This is completely normal. The entire
process, including inflation and deflation of the airbag, occurs in tenths
of a second.
NOTE! The sensor (3) reacts differently depending on whether the
driver's seat belt or front passenger seat belt is used or not. Crash
situations can occur where only one airbag is deployed.
Volvo Dual-Stage Airbag
In the event of lesser collisions, substantial enough to cause injury, the
airbags inflate to slightly more than half their full capacity. In the event of
collisions of greater force, the airbags inflate to their full capacity.
Seat belts and seat belt tensioners
All seat belts are equipped with a pyrotechnic seat belt tensioner (4).
A small charge, integrated into the seat belt reel, ignites at the moment of
impact and tensions the belt over the body so that any slack, caused by
clothing etc., is minimized. The belt restrains the occupant more rapidly.
The front seat seat belt tensioners are only triggered if the seat belt is
connected.
10

SRS (airbag)

SRS system left-hand drive
1
2
4
1. Gas generator
2. Airbag
SRS system right-hand drive
1
2
3
4
8801923d
1. Gas generator
2. Airbag
1
2
3
4
8801896d
3. Sensor
4. Seat belt tensioner
1
2
4
3. Sensor
4. Seat belt tensioner