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Home >> BMW >> 2006 >> 330i Automatic >> Repair and Diagnosis >> Restraints >> Restraints Control Systems >> Multiple Restraint Systems >> E90 Multiple Restraint System 5 >> Principles of Operation >> MRS 5 Control Unit >> System Self-test
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System Self-test

The MRS 5 performs a system self-test as from terminal R "ON". The airbag warning lamp is actuated for 3-5 s during the system self-test.

When the system self-test is concluded and no fault has been found, the airbag warning lamp goes out and the system is ready for operation.