What happens to passengers not wearing seat belts?What happens to passengers not wearing 
seat belts?  - Forces acting in a collision - Seat belts - Safety - Audi S5 Owner's Manual - Audi S5

Passengers not wearing seat belts risk fatal injuries in the event of an accident.

Fig. 169 A driver not wearing a seat belt can be thrown forwards
Fig. 169 A driver not wearing a seat belt can be thrown forwards

Fig. 170 A rear passenger not wearing a seat belt can be thrown forwards
Fig. 170 A rear passenger not wearing a seat belt can be thrown forwards

In a frontal collision, unbelted passengers will be thrown forwards and make violent contact with the steering wheel, dashboard, windscreen, etc ⇒ fig. 169. Passengers not wearing their belts risk being thrown out of the car, resulting in potentially fatal injuries.

The common belief that occupants can brace their weight with their hands in a minor collision is false. Even at low speeds the forces acting on the body in a collision are so great that it is not possible to hold yourself in the seat.

It is also important for the rear passengers to wear seat belts, as they could otherwise be thrown forwards violently in an accident.

Rear passengers who do not use seat belts endanger not only themselves but also the other occupants ⇒ fig. 170.