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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 10-09-2012, 08:33 PM
Tiko530 Tiko530 is offline
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Location: NYC
 
Join Date: Sep 2012
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Mein Auto: 2003 530i
Strange noise from 530

I have a 2003 530i, today while parked in the driveway I noticed a very low but audible noise coming from the front when I was in the car. It sounded almost like an airplane powering up to take off, it would increase in pitch for a few seconds stay flat then lower in pitch and go away, and would repeat itself a few times. I'm assuming it was some sort of vacuum noise. Very low volume but definitely audible in a quite setting with the radio off, I noticed it again while driving the vehicle later.

Is this a normal noise or something I should be concerned about?
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  #2  
Old 10-10-2012, 04:54 AM
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16valex 16valex is offline
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Location: Albany NY
 
Join Date: Jul 2004
Posts: 2,585
Mein Auto: 530I/5SC 97-528/5
Quote:
Originally Posted by Tiko530 View Post
I have a 2003 530i, today while parked in the driveway I noticed a very low but audible noise coming from the front when I was in the car. It sounded almost like an airplane powering up to take off, it would increase in pitch for a few seconds stay flat then lower in pitch and go away, and would repeat itself a few times. I'm assuming it was some sort of vacuum noise. Very low volume but definitely audible in a quite setting with the radio off, I noticed it again while driving the vehicle later.

Is this a normal noise or something I should be concerned about?
It's your aux fan doing its job, nothing to worry about, perfectly normal.
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  #3  
Old 10-10-2012, 07:39 PM
Tiko530 Tiko530 is offline
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Location: NYC
 
Join Date: Sep 2012
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Mein Auto: 2003 530i
Thanks, good to know. I've become paranoid ever since I bought this car.
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