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Go Back   Bimmerfest - BMW Forums > BMW Model Discussions > 5 Series > E39 (1997 - 2003)

E39 (1997 - 2003)
The BMW 5-Series (E39 chassis) was introduced in the United States as a 1997 model year car and lasted until the 2004 when the E60 chassis was released. The United States saw several variations including the 525i, 528i, 530i and 540i. -- View the E39 Wiki

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  #1  
Old 01-19-2013, 12:50 PM
Th98540i Th98540i is offline
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Location: Gastonia
 
Join Date: Jan 2013
Posts: 3
Mein Auto: 98 bmw 540i
E39 electrical ???

My 98 540i has electrical issues. The radio will play for about five mins and then no sound. Radio still on, just no sound. Also, air bag light is on and the check brake lights thing comes on. The car runs great just gremlins. Any ideas.
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  #2  
Old 01-19-2013, 12:59 PM
pleiades pleiades is offline
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Location: Oregon
 
Join Date: Jun 2010
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Mein Auto: '99 528i, M52TU w/stick
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Originally Posted by Th98540i View Post
My 98 540i has electrical issues. The radio will play for about five mins and then no sound. Radio still on, just no sound. Also, air bag light is on and the check brake lights thing comes on. The car runs great just gremlins. Any ideas.
Did these issues just start? Coincide with rainy weather? Any water leaks into the cabin or on/into the carpeting?

What happens if you lower the sunvisor? Nothing?

Finally, what is the state of charge on your battery, measured voltage with a multimeter with the car off, and with it running?

Any other electrical related nonsense you've spotted?
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Old 01-19-2013, 01:03 PM
Th98540i Th98540i is offline
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Location: Gastonia
 
Join Date: Jan 2013
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Mein Auto: 98 bmw 540i
No I bought it and didnt realize the issues at the time. Sunvisor has no affect so I thing the ignition switch is ok. Havent checked voltage because car runs fine and just installed batt. Rain or sun makes no diff

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Old 01-19-2013, 04:40 PM
Th98540i Th98540i is offline
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Location: Gastonia
 
Join Date: Jan 2013
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Mein Auto: 98 bmw 540i
Ok brake light thing is on because the third brake light is out. The nav monitor isnt working right either. It will only ket you turn it off after a few minutes.

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