GS - 3rd Gen (2006-2011) Discussion about the 2006+ model GS300, GS350, GS430, GS450H and GS460

F Sport BBK grinding noise

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Old 08-16-10, 11:32 AM
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patricksr5
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Default F Sport BBK grinding noise

I just had F Sport BBK installed last week. I am hearing a high pitched rubbing noise (not real loud but noticeable) when NOT using the brakes. When I apply the brakes there is no noise. I called the dealer and he said this is normal for the first 500 miles. I have read where people hear noise when brakes are applied and you might need to 'bed' the brakes but this is when the brakes are not applied. Anybody else have this when installing BBKs?
Old 08-16-10, 12:47 PM
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I8ABMR
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sounds a bit odd. I would call them again
Old 08-16-10, 02:13 PM
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patricksr5
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I agree, it sounds like a warped rotor to me, I am taking it back to the dealer today.
Old 08-17-10, 06:49 PM
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cpcalkins
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2pc rotors need to be trued before being installed... If they are not trued correctly you will get strange noises and even vibration during braking... Learned this the hard way with my M3 and 993TT brakes... If the dealer is not willing to do this, you may want to take your rotors off and take them to a machine shop that has experience with 2pc rotors...
Old 08-17-10, 07:07 PM
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passnu2
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is it hitting the dust shield?
Old 08-17-10, 07:19 PM
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designo
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Originally Posted by passnu2
is it hitting the dust shield?
Exactly....
Old 08-17-10, 11:49 PM
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rominl
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Originally Posted by passnu2
is it hitting the dust shield?
that would be epic... but if it's hitting, i think the noise would be all the time even when braking?
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