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Old 10-14-2012, 04:19 PM
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wjjklj wjjklj is offline
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Location: Louisville, Kentucky USA
 
Join Date: Dec 2008
Posts: 1,586
Mein Auto: 2009 750i
Alternator would cause fault codes and warnings like transmission failsafe. The starter is underneath the car and under the reinforcement plate. The battery and power module is where you say you hear the sound. The integrated power supply is underneath the passenger side cabin filter.
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