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7 Series - E65 / E66 (2002 - 2008)
Discussion of BMW's 4th generation E65/E66 7 Series flagship. The E65 generated much controversy, due to its radical styling and iDrive user difficulties. Nonetheless, the E65 broke records to become the best-selling 7-series iteration ever, especially after its 2005 facelift.

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  #1  
Old 08-08-2015, 07:39 PM
marine4life marine4life is offline
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Whistle noise (Listen here via external link) - Help

Listen to the noise here at:



Already replaced AC Blower motor. Whistle problem remains!

It is NOT coming from the sunroof.
It does tend to sound electronic but I believe it is NOT electronic.
Noise appears to come from front dash.

Noise whistle comes on most often between 50mph and 80mph. It is always random.
Comes on regardless if AC is on or off; regardless is music is on or off. When I pull over on side of road and shut car off and remove key, noise whistle remains constant for an additional 15 seconds before going away on its own.

Noise sometimes begins and the very beginning of engine start up (in warm/hot weather).

Where is this particular noise coming from? Crank Case Value (CCV) Something else? Please help.

Has anyone experienced this ExAcT same noise and successfully resolved this problem?? Please share and advise….End_a_
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  #2  
Old 08-13-2015, 05:37 PM
marine4life marine4life is offline
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Has anyone experienced this noise before and can share what they did to fix it...please?
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  #3  
Old 08-13-2015, 06:09 PM
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PAPER PAPER is offline
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could be your L7 or even the ask unit . have you tried
to pin point the location it's coming from ?
under the seat subs ?
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Old 08-13-2015, 06:32 PM
marine4life marine4life is offline
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Paper,
It is not coming from under the seat. It is not the subs. As for my L7, I had that fixed by the infamous Factoryradioservice.com guy that everyone uses (John N) to fix their L7 and Ask unit. The noise seems like its coming from the AC vent...like behind it. I think i tired to see one time if it was coming from under the front hood of the vehicle but I cannot remember if i ever stopped and pulled over to listen to that. It always comes on randomly and when it does, i am on an open road movin....quick. It makes this noise upon the vehicle first waking up when the engine is fully turned over and started. Then it goes away. From there, the next time I here it, it is always a mystery and surprise me when it goes off. When it does go off, it stays making that noise WAY longer than the 20 seconds recorded. It more so so continues on like this for several minutes. The only way i know to get rid of it quicker is to pull over and shut the car off. It continues to make the noise for about 30 more seconds and then it will go away. Total mystery to me.....no idea what this is.....smh.
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Old 08-14-2015, 11:27 AM
ndcsucks ndcsucks is offline
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CCV's?
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Old 08-14-2015, 01:39 PM
pedro2u pedro2u is offline
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a test to check the CCV is to remove the oil filler cap with the engine running. When my CCV's failed, my engine would stall. Others said the noise would just go away. Worth a try. CCV's are cheap and an easy DIY.
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Old 08-14-2015, 02:49 PM
marine4life marine4life is offline
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I will look into that and see if that may be the problem. Not sure. I just did not want to do exploratory fixing but yeah. CCVs are not that much and will give it a try.....

If anyone else has something to offer and can relate to that exact noise they hear...please share. Thanks.
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Old 08-14-2015, 03:01 PM
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Ok so that rules out the L7 . What about the
Blower under the dash . If I recall correctly
Someone else had a similar noise coming
From the bearing squeaking .
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