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

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  #1  
Old 01-19-2010, 12:52 PM
KruelHouse KruelHouse is offline
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Location: Ohio
 
Join Date: Dec 2007
Posts: 50
Mein Auto: X3
Strange Sound while in reverse

Lately, I've noticed a strange sound coming from the rear of the X whenever I'm backing up. It sounds almost as if the park brake is still engaged, and when I gently apply the brakes, I can faintly detect a light grinding sound. I did a forum search earlier this morning, and I think there was a member with an e46 that was doing the same thing. Someone mentioned the "park brake shoes/pads", but there wasn't a conclusion. Has anyone had any experience with this?

In addition, after going on a long drive, I sometimes smell the aroma of a burning substance (oil/fluid) whenever I walk toward the rear of the car.
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  #2  
Old 01-19-2010, 07:13 PM
Mtnbiker Mtnbiker is offline
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Location: Connecticut
 
Join Date: Dec 2004
Posts: 19
Mein Auto: 2005 x3 3.0 Highland Grn
Best go have the brakes checked.
Break sensors (the dash lites up) are only on the front right, and left rear wheels. Could have a pinch in the hand brake cable that is keeping some pressure on one of the rear wheels.
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  #3  
Old 01-19-2010, 10:55 PM
Supercourse Supercourse is offline
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Location: British Columbia, Canada
 
Join Date: Feb 2008
Posts: 3,068
Mein Auto: 2004 X3 2.5i
If it is an issue with the Handbrake, keep in mind that the Owner's Manual says:

To prevent corrosion and one-sided braking action, occasionally apply the handbrake lightly when the vehicle is slowly coming to a standstill at a traffic light if the traffic conditions are suitable.

Particularly applicable to areas where salt is used in winter.

"If traffic conditions are suitable" means of course that anyone following you will not see any brake lights coming on if just the handbrake is used.
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  #4  
Old 01-21-2010, 08:35 AM
KruelHouse KruelHouse is offline
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Location: Ohio
 
Join Date: Dec 2007
Posts: 50
Mein Auto: X3
Thanks for the input! Ironically, the noise just ceased yesterday, and I cannot replicate it. I'm actually planning on replacing the brakes soon anyway.
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