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X3 E83 (2004 - 2010)
Talk about the E83 BMW X3 in this forum!

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  #1  
Old 06-28-2015, 05:12 PM
dave457 dave457 is offline
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Location: Boston, MA, USA
 
Join Date: Feb 2015
Posts: 10
Mein Auto: 2004 BMW X3 2.5i
Possible power steering issue

Hey guys. My 2004 X3 with 110,000K miles has been squealing/rattling for over a year. If I step on the gas the noise goes away. I replaced the two tensioner pulleys and the idler pulley. I replaced both belts. I replaced the water pump. No difference at all.
The rattle is gone when I run the engine for 30 seconds with no belts. The alternator pulley spins solid and smooth.
Which leads me to believe that it's the power steering. When I start the engine it squeals. While in park, if I tug the steering wheel right or left the noise gets worse. BUT, if I spin the wheel completely right or left to the hard stop, the noise goes away and stays away until I straighten the wheels. Then it goes back to chirp/squeal/rattling. The steering feels fine to me, but I did notice when I drove a friends X3, the steering felt a lot better. Mine feels anemic by comparison. The fluid appears to be at the correct level.
Thanks in advance for any advice. if there are any first hand experiences, or links to DIYs I'd love to hear about them!

Last edited by dave457; 06-28-2015 at 05:14 PM.
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  #2  
Old 06-29-2015, 11:34 AM
jlex jlex is offline
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Location: NW Pennsylvania
 
Join Date: Jul 2013
Posts: 467
Mein Auto: 2005 X3.0i
Have you ever changed the PS fluid? May be time.
I bought the reservoir (which has the filter included) very reasonably, then changed mine last weekend. Filled it with fluid, then changed that three times to eliminate most of the old stuff. Nice weekend project. My X3 has 110,000 mi. w/ no prior PS problems, but I thought it was time anyway...
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  #3  
Old Yesterday, 01:41 PM
dave457 dave457 is offline
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Location: Boston, MA, USA
 
Join Date: Feb 2015
Posts: 10
Mein Auto: 2004 BMW X3 2.5i
I did a flush with ATF, then I changed the Power Steering fluid Resevoir. It was easy. Makes the SAME noise. At least now I know it's the pump

Last edited by dave457; Yesterday at 02:32 PM.
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