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7 Series - E65 / E66 (2002 - 2008)
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  #1  
Old 05-19-2014, 01:38 AM
Blackbox760 Blackbox760 is offline
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Join Date: Oct 2011
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Mein Auto: 2003 E66 760Li
Squeal noice from under car

Good day
I am trying to locate a noise coming from underneath the car. At first it sounded like one of the fan belts slipping but on closer investigation I can not really locate the source of the noise. I used a piece of hose to listen and try and pin point the location of the noise, at one stage I thought it might be the power steering pump but now it sound if the noise is more from the rear of the engine.

I tried to find a bearing (thrust bearing?) on the ETK but the drawings does not show a bearing between engine and gearbox. Does anybody here experienced such a noise at some stage and can give me some pointers please?

Thank you
C
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  #2  
Old 05-26-2014, 08:21 PM
BigRoob BigRoob is offline
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Location: NC
 
Join Date: Aug 2013
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Mein Auto: 2007 BMW 750I
You may want to have someone look at you rear main seal. My 750I is making a sound like yours now. Part costs like $94 but with labor your looking at almost $1300. Hope this helps.

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  #3  
Old 05-26-2014, 08:46 PM
Blackbox760 Blackbox760 is offline
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Mein Auto: 2003 E66 760Li
Thank you for the answer, will you please let me know if your noise is sorted with a seal replacement?

I started to think it is maybe low gearbox oil level that cause the noise, after I posted I remembered that lately I had rough shifting and maybe the noise/oil level is related as I saw some oil underneath the gearbox when I jacked up the car to search for the noise.

Cheers
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