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E36/7 Z3 (1996-2002)
E36/7 Z3 Roadster, Z3 coupe, Z3 M Roadster and Z3 M Coupe talk with our gurus here.

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  #1  
Old 01-03-2011, 02:14 PM
Hemeter123 Hemeter123 is offline
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Location: Florida
 
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Mein Auto: 1987 Z3
Z3 Wheel bearing?

I have a 1996 Z3 1.9 When I am driving regardless of speed it sound like I am flying in a plane. The noise does not increase of decrease with speed. My son said the wheel bearing is going. Any thoughts?
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  #2  
Old 01-03-2011, 02:22 PM
Bking Bking is offline
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Mein Auto: 10 528, 02 330i, 92 535i
Tire cupping is the cause for most all straight line noise. A bad wheel bearing usually shows up in a slight curve.
If you have a bad wheel bearing that makes noise in a straight line you should be able to jack up the car and figure out which one but keep in mind that it is normal for the brake pads to rub some and that can cause a false diagnosis.
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Old 01-05-2011, 04:33 PM
RichardTS RichardTS is offline
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Mein Auto: 2006 Z4 M & E90 335
Quote:
Originally Posted by Hemeter123 View Post
I have a 1996 Z3 1.9 When I am driving regardless of speed it sound like I am flying in a plane. The noise does not increase of decrease with speed. My son said the wheel bearing is going. Any thoughts?
Wheel bearing noise should vary with speed. With no change at varying speeds I would look for something not connected to the wheels or the engine.
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