Question about 2004 BMW 525 i

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Why does my 2004 BMW 525 intermittedly have no power?

2004 BMW 525 will not start intermittedly. Key fob will not unlock the doors, no lights, bells, or emergency lights. Put the key in and nothing happens. Starter does not turn over. Randomly (a minute to a few days) everything comes back to life and drives fine. Will start perfectly for hours, days or months then dies just like this again. Im assuming the battery is ok since it comes to life without doing anything to the car. Could this be a dying key fob or is it much more complicated like an electrical issue. (transmission was just replaced 6months ago and can afford another issue with this car) Please Help!

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IT DOES SOUND LIKE KEY FOB DYING AND I HOPE IT IS AS IT WOULD BE CHEAPEST PROBLEM TO SOLVE. GOOD LUCK

Posted on Apr 14, 2017

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Posted on Jan 02, 2017

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cansmo

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SOURCE: 2004 BMW 525 will not start intermittedly.

It can be related to the transmission repair such as power ground not being sufficiently connected,because this is intermittent,There is also a Technical bueletin from BMW about power loss, and no crank situation No. SI B 12 03 06, engine electrical system

Posted on Aug 25, 2012

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These details will help.

Thanks.

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2004 BMW 525 will not start intermittedly. Key fob will not unlock the doors, no lights, bells, or emergency lights. Put the key in and nothing happens. Starter does not turn over. Randomly (a minute to a...


It can be related to the transmission repair such as power ground not being sufficiently connected,because this is intermittent,There is also a Technical bueletin from BMW about power loss, and no crank situation No. SI B 12 03 06, engine electrical system

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