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Home >> BMW >> 1982 >> 528e Automatic Trans >> Repair and Diagnosis >> External Pages >> Different car >> Section 185 (Passive Safety Systems - Overview) >> Passive Safety Systems >> Multiple Restraint System (MRS & MRS II) >> MRS/MRS II Deployment Logic >> BST Trigger Logic
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BST Trigger Logic

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Triggering of the BST requires no additional sensors. The MRS II control module will trigger the BST as follows:

FRONTAL COLLISION:  During a frontal collision that involves deployment of any front air bag, the BST will also be triggered

SIDE IMPACT:  Depending on the severity of the side impact, the BST may also be activated.

REAR IMPACT:  Detection of server rear impact will cause the MRS II to activate the seat belt tensioners and simultaneously activate the BST.

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