Mercedes Benz 2002 ml 320 Manual Do Utilizador

Airbags are intended as a supplement to seat belts. 
Airbags alone cannot protect as well as airbags plus 
seat belts in impacts for which the airbags were 
designed to operate, and do not afford any protection 
whatsoever in crashes for which the airbags are not 
designed to deploy.

The SRS uses two crash severity levels (thresholds) to 
activate either the Emergency Tensioning Retractor 
(ETR) or front airbag or both. Activation depends on the 
direction and severity of the impact exceeding the 
preset thresholds and whether the seat belt is fastened.

Seat belt fastened

• first threshold exceeded: ETR activates

• second threshold exceeded: airbag also activates

Seat belt not fastened

Front seats:

• first threshold exceeded: 

airbag activates, but not ETR

Rear outer seats:

• first threshold exceeded: 

ETR activates

Driver, front passenger and rear outer seat systems 
operate independently of each other.