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X5 E53 (1999 - 2006)
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  #1  
Old 02-11-2014, 01:26 PM
pquast pquast is offline
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Brake vibration

I new to BMW ownership and new to the forum as well. My question is has anybody else had braking problems. When I apply the brake above 45-50mph I get what feels like a warped rotor and I feel it in the steering wheel as well. But if I apply the brakes again I don't feel it near as bad as I did the first time. I looked at the pads and they are far from the service limit, I shook all four tires to see if the control arm bearings were bad and they were good as well. Steering is tight and responsive.
What I am looking for is some insight on this. I am planning on doing a complete brake job on it in a couple of weeks. Thank you reClick image for larger version

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  #2  
Old 02-11-2014, 03:05 PM
chatcher chatcher is offline
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Try to rebed the brakes

http://www.zeckhausen.com/bedding_in_brakes.htm
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  #3  
Old 02-11-2014, 05:53 PM
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Had the same issues with my 2003 3.0i at 120k miles, believe it or not it was the lower ball joints and upper control arms bushings. Only way to check is with the wheels up for the ball joint and if there are small cracks in the front control arm bushing in the front. I bought my parts from http://www.fcpeuro.com/ and my brother did the hard labor. It drives like brand new with 142k miles now.
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Old 02-12-2014, 07:12 AM
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Scott ZHP Scott ZHP is offline
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+1 on the control arm bushings. With the wheels straight ahead, and lightly holding the steering wheel, tap the brakes at about 30mph. If the wheel twitches in your hands, your front control arm bushings are likely worn.
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  #5  
Old 02-12-2014, 11:02 AM
pquast pquast is offline
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Scott ZHP, tried the 30mph nothing in the steering wheel, looked at all the ball joints they still look good.


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  #6  
Old 02-12-2014, 12:41 PM
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Curious how many miles? I would bet its the front control arm bushings. Mine did not always shake but once replaced it never shook again w lower ball joint.

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Old 02-12-2014, 12:44 PM
pquast pquast is offline
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  #8  
Old 02-12-2014, 12:49 PM
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Sounds right. If u can wiggle the wishbone arm that runs from lower ball joint to the front where the black plastic pan starts then control arm bushing. Mine needed ball joint too but looked fine until taken apart were worn out.

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  #9  
Old 02-12-2014, 12:50 PM
pquast pquast is offline
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The check brake lining indicator just came on.


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  #10  
Old 02-12-2014, 12:55 PM
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Do u see fluid leaking? Not seen this before unless brakes rotors are worn out. Stumped.

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  #11  
Old 02-12-2014, 02:04 PM
pquast pquast is offline
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No leaks, I am going to change front pads and rotors this weekend. I will use a dial gauge and see which rotor is warped. Next month I will change the front control arms just to be safe.


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  #12  
Old 02-12-2014, 05:42 PM
AJR1982 AJR1982 is online now
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Warped rotors may stop vibration when they are warmed up.

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  #13  
Old 02-15-2014, 09:15 PM
pquast pquast is offline
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Replace front brakes, runout on the drivers side inside was .006". Now it is driving great. Control arm bushings look new too.


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