Impact Sensor Signals
WARNING: This page does not describe the selected car, but rather 151 other vehicles, including the 2006 BMW X5, 2006 BMW M3, 2006 BMW 330Ci, 2006 BMW 325Ci, and 2005 BMW X5. However, it is still accessible from the selected car via links, so may be relevant.
During a frontal collision of sufficient impact at least one impact sensor and the safety sensor in the SRS module will close signalling airbag activation.
Sufficient impact generally results from a collision with a solid, non-moving object at a speed greater than 12 MPH.