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      09-15-2016, 05:32 AM   #1
bmwak
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640d - Scraping/grinding noise at low speeds on cold start

Wondering if someone can advise on this...my 640d seems to be making this grinding/scraping noise, which seems to be coming from low speed wheel rotation on cold starts.

It does go away after the brakes are warmed up a bit. It sounds exactly like the noise that you get with new brake discs/pads when they are 'box fresh' and are bedding in. But usually the noise goes away. I did have new front pads (genuine) but nothing is wrong with them.

My dealer tells me it is a characteristic of it and nothing is wrong or I don't have warped discs or anything. Any ideas?
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      09-15-2016, 11:26 AM   #2
drmlee
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mine does the same thing in the morning. it goes away but always starts again when the car sits for along time.
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      09-15-2016, 03:45 PM   #3
doughboy650gc
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I get a creaking/sqeaking when the car goes over the 1st few bumps then fades away after.....taking and dropping off the car at the dealership on sat.
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      09-15-2016, 04:25 PM   #4
upstate650
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This is usually just a little crust on the rotors goes away quickly and no big deal.
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      09-16-2016, 06:56 AM   #5
bmwak
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Thanks for the info all.

Just to confirm this is when just moving, not when braking, despite it coming from the brakes. Is yours all the same?
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      09-16-2016, 11:41 AM   #6
doughboy650gc
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def. not brake scrape... sounds more like suspension noise
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      09-17-2016, 04:12 PM   #7
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I have had the same problem..just check all screw..especially security one.
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