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Old 05-04-2013, 12:52 AM
beavis55 beavis55 is offline
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Location: hawaii
Join Date: Apr 2013
Posts: 3
Mein Auto: 2003 X5 3.0i
"tea kettle" noise

i have an 03 x5 3.0i. i have a faint high pitched whistle noise, resembles a tea kettle. its most noticeable when im in park and driving under 25mph.

i havent pin pointed the exact location of the noise. it sounds like its coming from the front but sometimes it almost sounds like its coming from the rear.

no performance issues, runs like a champ. i just got the serpentine belts changed along with the V/C gasket.

any ideas?
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Old 05-04-2013, 07:07 AM
boramkiv's Avatar
boramkiv boramkiv is offline
Propellers Up Front
Location: Chesapeake, VA
Join Date: Jan 2011
Posts: 2,007
Mein Auto: Some Bavarian car outside
Bearings in one of the pulleys is bad.
Thats one possible explanation. It could probably be confirmed if the pitch becomes a bit higher if while in park, and you rev the engine just a tad bit.
A high pitch sound can be very confusing on its location if you turn your head left and right. (doppler effect)

Another possibility, when my alternator started to go, (about one month prior) it started to make a high pitch sound, although that sounded more like a whistle. I pulled up to the dealer en route to my house, and asked the tech to listen, he replied "go inside and set up an appointment so we can diagnose better".
Although that was the correct answer for him to say, he really boiled my blood a bit because I knew it was the alternator, but just wanted a confirmation.
I ended up needing that appointment when my battery light came on a few weeks later.
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Old 05-10-2013, 05:55 PM
Spring20 Spring20 is offline
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Location: New jersey
Join Date: Apr 2013
Posts: 81
Mein Auto: 2006 BMW X5
Had same problem. Was DISA unit
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