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Disconnecting Battery

WARNING: This page does not describe the selected car, but rather 22 other vehicles, including the 2006 BMW 330Ci, 2006 BMW 325Ci, 2005 BMW 330i, 2005 BMW 330Ci, and 2005 BMW 325i. However, it is still accessible from the selected car via links, so may be relevant.
  1. Turn ignition off. DO NOT disconnect battery leads and leads from alternator and starter motor while engine is running.
  2. There is a danger of mixing up battery leads. If battery positive and negative leads are the same color, follow the polarity to the battery. Then mark and cover leads.
  3. On vehicles with radio code, radio code must be re-entered after connecting battery. Obtain radio code card from customer. Make a note of stored stations. Stored setting of on-board computer and clock will be lost.
  4. Detach terminal of battery negative lead from car battery and secondary battery, if fitted. DO NOT pull lever off pole shoes by force. DO NOT remove socket-head cap screw of IBS. Cover battery negative terminals and secure.
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