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Old 06-12-2011, 03:33 PM
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Default BMW Crash Sensitive Head Restraints

  • Service training ST712. BMW Crash Sensitive Head Restraints. 15 pages. Language - English.
Models: E60, E61, E63, E64, E83, E70
Production: From 9/2007 Production
E70 From 10/2007 Production

After completion of this module you will be able to:
Identify which vehicles utilize the crash sensitive head restraints
Explain the operation of the crash sensitive head restraint
Explain how to replace a crash sensitive head restraint

Contents:

Introduction . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .3

System Components . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .5

Head Restraint Bar . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .8
Head Restraint Frame . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .8
Pyrotechnic Actuator . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .8
Spring Actuating Mechanism . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .9
Button for Head Restraint Adjustment . . . . . . . . . . . . . . . . . . . . . . . . . . . . .9

Principles of Operation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .10
Deployment in the Event of a Rear Impact . . . . . . . . . . . . . . . . . . . . . . . .11
Electrical Connection . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .13
Head Restraint Versions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .13

Service Information . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .14
Replacing the Pyrotechnic Actuator . . . . . . . . . . . . . . . . . . . . . . . . . . . . .14
Check Control Message . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .14
Retrofitting . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .14
Head Rest Retaining Catch . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .15
All Non-multifunction Seats . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .15
Multifunction Seats . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .15

Free download - in attached file.
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