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DIY: Do It Yourself
Post here to share or improve your wrench turning skills! All BMW E46 DIY tips, tales, and projects discussed inside. Learn to work on your car and know the right BMW parts you will need!

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Old 08-05-2015, 07:23 AM   #1
skesque
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Brakes: Good Practice?

Hi,


Is it ok just to change pads twice for every rotor change?


Any other advice appreciated.

Thanks


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Last edited by skesque; 08-05-2015 at 08:10 AM.
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Old 08-05-2015, 10:13 AM   #2
Gus-CO
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As long as the rotors are within the minimum thickness you will be fine. Usually I see 3 pads wear out before the rotor hits the limit.
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Old 08-05-2015, 10:24 AM   #3
skesque
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Should the rotors be resurfaced every pad change?


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Old 08-05-2015, 10:27 AM   #4
Gus-CO
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Good question.... If you do, most likely the rotor will last 2 pads only.

I never did resurface and never had noise problems. Just comparing how much new rotors cost compared to turning them, it is not worth spending $20-30 resurfacing. If it makes noise I would just get new rotors afterwards.
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Old 08-05-2015, 01:17 PM   #5
venerated
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Just be careful if there's any warping or ridges in your rotor, as that will wear out your new brake pads quickly.
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a list of parts to replace on these is easy; just replace everything.
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Old 08-06-2015, 04:37 PM   #6
Riverbmr3
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I replaced my rotors everytime I replace my pads
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Old 08-13-2015, 12:35 PM   #7
havnfun328
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I'm sure I'll be flamed for this, but I don't touch the rotors unless they are warped.
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Old 08-13-2015, 01:42 PM   #8
skesque
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I replaced my rotors everytime I replace my pads

Why?


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Old 08-14-2015, 12:51 PM   #9
Gus-CO
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Why?


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Warped rotors basically do not exist. Proper braking technique which is as simple as: DO NOT come from 85 to a complete stop and keep standing on the exact same spot waiting for the light to come green will avoid pulsation on the pedal

If you don't to that your brakes will never pulsate. And 99% of the time they are not warped when they do.. What you feel pulsating is a layer of pad unevenly deposited onto the rotor. It got deposited when the rotor was too hot and the brakes were applied for too long with the car completely stopped.

Rotors have minimum thickness. Just measure yours and replace if it's below the recommended. Be careful bedding the pads and do not stop and keep the brakes pressed for too long after a hard braking. You will have good brakes for several thousand miles..

This is good reading:
http://www.stoptech.com/technical-su...nd-other-myths

Last edited by Gus-CO; 08-14-2015 at 12:59 PM.
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