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Brake rotors hex screw sizes needed

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Old 04-17-2014, 10:42 AM
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Default Brake rotors hex screw sizes needed

I'm about to work on the brakes and rotors. I don't want to get a whole set of hex sockets but can't remember what sizes I need for my 2007 530i

Anybody know the size required? And any abnormal tool that I need in order to change the brakes and rotors?

Tia
Old 04-17-2014, 04:02 PM
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twh
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You can get a set of hex sockets at Sears or even Home Depot for like $15.
Old 04-18-2014, 10:50 AM
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Originally Posted by Bimmer5project
I'm about to work on the brakes and rotors. I don't want to get a whole set of hex sockets but can't remember what sizes I need for my 2007 530i

Anybody know the size required? And any abnormal tool that I need in order to change the brakes and rotors?

Tia
Please it was a 6 or 7 mm alley if I remember correctly
Old 04-29-2014, 10:42 AM
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A 6 hex fits perfectly, and the same kind you use in the engine bay screws also work.

Problem was, mine was rusted in. Had to drill them out anyway.

Maybe post a DIY on how I did it later.
Old 05-05-2014, 06:35 PM
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I believe it is a 7mm hex for removing the 2 screws pointing to the inside of the car

something like this:
Sears.com

got mine at NAPA for like 3-4 bucks

This link has the PDFs for the front & rear breaks from BMW mechanic guides.
If you want a more detailed one I will try to find the one I used when I did mine.
DIY for Brake Pad Change? - BMW M5 Forum and M6 Forums

as far as the actual rotor it is held on by a common size and a multi-tool one should have the size. Don't remember it off the top of my head. Doesn't require a ton of torque so the multi-tool worked fine for me.

Last edited by jfolli1; 05-05-2014 at 06:37 PM.
Old 05-06-2014, 12:40 PM
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A 7mm hex tool is required for the caliper guide pins. This is not a size that is included in most sets. You'll want a standard length, 3/8" drive socket. The NAPA Carlyle brand is good (Taiwan), but Sears has gone to China. There are many other tool brands to choose from.

Last edited by txag_530i; 05-07-2014 at 10:28 AM.
Old 05-06-2014, 03:54 PM
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I used a impact hammer to remove mine. More than likely if you try by hand you will strip the head. I think the impact hammer cost about $12.00 at just about any parts store.
Old 05-07-2014, 10:34 AM
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7mm hex is for the 2 screw on the inside, the rotor is like a 5mm I think.
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