2003 Mini Cooper Base, Automatic CVTFACTORY OEM SERVICE PROCEDURE

System Components: Notes

The MRS5 system consists the following components:

  • MRS5 control unit
  • Crash sensors - "b" pillar (x 2)
  • Crash sensors - up front (x 2)
  • Door pressure sensors (x 2)
  • MRS warning lamp (in IKE)
  • Slip ring
  • Passenger seat occupancy detector (OC-3)
  • Seat belt switches
  • Driver's airbag module
  • Front passenger's airbag module
  • Driver's side (thorax) airbag module
  • Front passenger's side (thorax) airbag module
  • Advanced head protection system (AHPS2) airbag - right hand
  • Advanced head protection system (AHPS2) airbag - left hand
  • Driver's seat belt pre-tensioner
  • Front passenger's seat belt pre-tensioner
  • Battery Safety Terminal
Fig 1: Multiple Restraint System 5 (MRS 5) Components
G04724750Courtesy of BMW OF NORTH AMERICA, INC.
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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