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-   -   2005 4.4 x5 whistling and tapping noise (https://xoutpost.com/bmw-sav-forums/x5-e53-forum/64399-2005-4-4-x5-whistling-tapping-noise.html)

cavx5 11-24-2009 11:02 AM
hi everyone..i have similar noise...been asking around and was told is normal...i dont know everything and every noise on these cars is normal....mrbmw...where would i find intake boot yor reference in your post..i have a 2005 4.4...and like azx54.4 states i also have hight pitch noises in the cabin only not from radio mine appear to be linked to the hvac system/controls...thanks rob

anerbe 11-24-2009 03:29 PM
Quote:
Originally Posted by cavx5 (Post 683800)
hi everyone..i have similar noise...been asking around and was told is normal...i dont know everything and every noise on these cars is normal....mrbmw...where would i find intake boot yor reference in your post..i have a 2005 4.4...and like azx54.4 states i also have hight pitch noises in the cabin only not from radio mine appear to be linked to the hvac system/controls...thanks rob
the fix has been posted here in the past for the noise associated with the HVAC and throttle application. seach for it. I had the problem and it has to do with the HVAC tubes and the driveline/trans location

rafraf77 11-30-2009 03:31 PM
Quote:
Originally Posted by AZX54.4 (Post 683568)
I think my 05 4.4 makes these noises as well. I can hear i high pitch noise at lower speeds in the cabin. Almost sounds like high pitch frequencies coming through the radio under acceleration. Maybe its the same noise? Its note vacuum leak or anything
The high frequency noise you are talking about was another mystery I have had noticed as well and was told it is coming from hydraulics of rear self leveling suspension. Do I need to mention that it is perfectly normal? :)

AZX54.4 11-30-2009 05:25 PM
Quote:
Originally Posted by rafraf77 (Post 685353)
The high frequency noise you are talking about was another mystery I have had noticed as well and was told it is coming from hydraulics of rear self leveling suspension. Do I need to mention that it is perfectly normal? :)
Haha, thats bmw's answer to a lot of the noises I ask about. "Its normal" Well thats interesting that it might be a hydraulic noise for the rear self leveling suspension.

zigzag 06-23-2010 06:58 PM
Rafraf,
have you found how to fix it?


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