Safety Warning
DIY auto repair can cause serious injury, fire, or vehicle damage. These guides are for informational purposes only. Always follow OEM torque specs, wear PPE, and consult a certified mechanic if you are unsure. You are solely responsible for your safety.
2006 BMW 325i StandardFACTORY 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
- Curtain airbag - right side
- Curtain airbag - left side
- Driver's seat belt pre-tensioner
- Front passenger's seat belt pre-tensioner
- Battery Safety 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:
- • You smell fuel, burning insulation, or see smoke.
- • Brakes feel soft, pull hard to one side, or make grinding noises.
- • The engine overheats, stalls repeatedly, or misfires under load.
- • You are missing required tools, torque specs, or safe lifting equipment.
- • You are not confident in the next step or safety outcome.