2011 BMW 528iFACTORY OEM SERVICE PROCEDURE

4.2. Crash-relevant functions: Notes

The Crash Safety Module must fulfill the following crash-relevant functions:

  • Evaluating the sensor signals
  • Detecting crashes
  • Determining the triggering time and the triggering sequence
  • Triggering the output stages of the firing circuits
  • Sending the crash message to all bus users
  • Crash documentation
  • Emergency call function
Factory Service Tools

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When to See a Mechanic

Stop DIY work and contact a certified mechanic immediately if any of the following apply:

  • β€’ You smell fuel, burning insulation, or see smoke.
  • β€’ Brakes feel soft, pull hard to one side, or make grinding noises.
  • β€’ The engine overheats, stalls repeatedly, or misfires under load.
  • β€’ You are missing required tools, torque specs, or safe lifting equipment.
  • β€’ You are not confident in the next step or safety outcome.

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