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Disabling & Activating Air Bag System

WARNING: This page does not describe the selected car, but rather 70 other vehicles, including the 2008 BMW 760Li, 2008 BMW 750i, 2008 BMW 750Li, 2008 BMW 650i, and 2007 BMW Z4. However, it is still accessible from the selected car via links, so may be relevant.
CAUTION: Ensure radio is off before disconnecting battery. This will prevent damage to radio microprocessor. On cars with radio codes, ask customer for radio code card before disconnecting battery. Make a note of stored transmitters, restore these transmitters after reconnecting the battery.
  1. Before proceeding, see SERVICE PRECAUTIONS  . Retrieve fault codes before disconnecting battery. Ensure radio and ignition is off. Disconnect and shield negative battery cable. WAIT at least 5 minutes (one minute on 7-series models) for energy capacitor in SRS control unit to discharge. System is now disabled.
  2. Ensure no one is inside vehicle and connect negative battery cable. System is now activated. Perform system operation check to ensure system is functioning properly and no fault codes are set. See SYSTEM OPERATION CHECK  .
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