2002 BMW 745iFACTORY OEM SERVICE PROCEDURE

Intelligent Safety Integration System (ISIS): Components

The ISIS is made up of the following components:

  • SIM (System Master)
  • byteflightΒ 
  • A-Pillar Satellites, Left and Right
  • B-Pillar Satellites, Left and Right
  • Seat Satellites, Driver and Passenger
  • Seat Satellite, Rear
  • Door Satellite, Driver and Passenger
  • Vehicle Center Satellite
  • Steering Column Switch Center
  • Central Gateway Module
  • Driver and Passenger Front "Smart" Airbags
  • Driver and Passenger Knee Airbags
  • Advanced HPS I (HPS II with rear airbag option)
  • Side Airbags, Driver and Passenger (Rear side airbags optional)
  • Seat Belt Tensioners with Buckle Switch, Driver and Passenger
  • Seat Belt Tension Limiters, Driver and Passenger
  • Seat Belt End Fitting Tensioners, Left and right rear passengers
  • Seat Occupancy Sensors, Driver and Passenger (4 seating positions with rear airbag option)
  • Active Head Restraint (with Comfort Seat option)
  • Safety Battery Terminal
Factory Service Tools

Use the Manual With the Right Hardware

Pair factory procedures with proven DIY tools so the instructions are easier to execute.

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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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