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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 09-09-2015, 07:20 PM
jc8333 jc8333 is offline
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Location: Bay Area, California
 
Join Date: Dec 2013
Posts: 128
Mein Auto: 1999 528i (e39)
Squealing Noise

Hello -

I have a 1999 528i with 142K miles on it. I have a squealing noise that seems to be coming/echoing from under the car. I have had the car up on a lift, and the best guess was it was coming from the tranny area...not sure if there are any noises like this the tranny could make?

Below is a video link to the noise...All the belts and pulleys have been redone, there is a new alternator..done lots of other work too. The squeal only seems to happen once the engine/car is warm, and does not increase in volume when accelerating (so it is easiest heard at idle, but continues on and gets drowned out once driving).



I've tried so hard to locate the culprit, but so far no luck...any advise is welcomed. THe car has been making this noise for years, and I have done a LOT of maintenance on this car, however the noise still remains.
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  #2  
Old 09-09-2015, 07:33 PM
ca2014mp2 ca2014mp2 is offline
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Location: San Jose
 
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Mein Auto: E39 2000 528ITA
sounds like an air leak but you never raised the engine over an idle.. maybe an vid with you adding engine range. Have you changed any air leak issues and what are your fuel trim numbers to show it's not an air leak??
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Series E39 Vehicle code DP63 Model 528ITA Engine M52TU
Body type OTHER Catalog model USA Production date 1999 / 06
Transmission Automatic Steering Left Catalyzer YES

Production FROM : 1998/09/01 TO : 1999/08/31
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  #3  
Old 10-16-2015, 09:54 AM
jc8333 jc8333 is offline
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Location: Bay Area, California
 
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Mein Auto: 1999 528i (e39)
Put the car through a smoke test at my Indy, and it passed. So there are no vacuum leaks. Also, the car is throwing zero codes currently.
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Old 10-16-2015, 10:21 AM
ca2014mp2 ca2014mp2 is offline
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Location: San Jose
 
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Mein Auto: E39 2000 528ITA
humm.. what are your trim numbers? how about a vid above idle.. just as I asked above..
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Series E39 Vehicle code DP63 Model 528ITA Engine M52TU
Body type OTHER Catalog model USA Production date 1999 / 06
Transmission Automatic Steering Left Catalyzer YES

Production FROM : 1998/09/01 TO : 1999/08/31
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  #5  
Old 10-16-2015, 11:07 AM
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Cabover1000 Cabover1000 is offline
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Location: Belding,Michigan
 
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Mein Auto: 1998 bmw 540i
Alternator?
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Old 10-16-2015, 02:46 PM
jc8333 jc8333 is offline
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Location: Bay Area, California
 
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Mein Auto: 1999 528i (e39)
Let me work on getting a video above idle. Trim is 2.8L i6 (1999 528i)
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