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

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  #1  
Old 03-26-2017, 03:25 AM
bathtub bathtub is offline
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Location: Adelaide, Australia
 
Join Date: May 2015
Posts: 25
Mein Auto: BMW E83 X3
Squeaking on downshifts

Hey guys,

Having a weird issue with my X3. It's a 3.0i auto with the 5 speed. About 135,000kms.

Whenever I downshift hard in manual mode, I get a pretty loud squeaking noise from somewhere in the front of the car. It happens in reverse and occasionally on slow downshifts in between gears as well.

Has anyone else had this issue? Any idea where I should begin looking? It seems like it happens whenever there is backwards load on the drivetrain.

Thanks in advance.. looking forward to hearing some ideas.


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  #2  
Old 03-27-2017, 09:24 PM
bathtub bathtub is offline
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Location: Adelaide, Australia
 
Join Date: May 2015
Posts: 25
Mein Auto: BMW E83 X3
So for anyone interested.. I pulled out the rear driveshaft and it's the rear uni joint making the noise. Now for the fun part.. finding a new one in Australia for less than a million bucks haha.


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