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      07-12-2011, 07:22 PM   #179
TMANN
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Drives: '12 M3; '95 M3; '12 X535d
Join Date: Oct 2010
Location: Seattle, WA

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I just purchased the Cool Carbon brake pads (David, thanks for the special!) and ECS ss brake lines for an upgrade (mostly just to do HPDE) to my '07 E92. I have 41K miles on the original pads and rotors, with the wear sensors telling me I have another 14K or so life on the originals. I do not plan to replace my rotors at this time. I have a few questions:

1. Any need to prematurely replace my rotors?

2. I plan to swap my OEM pad back onto the OEM rotors after the track season for the winter. Is that a problem?

3. After reading the brake-bedding procedure, it appears I'll need 300-500 miles to get them properly bedded? Therefore it doesn't appear I should make a swap from my original OEM pads to the new Cool Carbons a few days before an HPDE event?

4. It seems I read all the time about guys who swap pads before track days. How do they do this and keep their rotors from wearing unevenly? Or are there any other issues I should be aware of?

5. Do I need to replace the brake wear sensors when the pads are changed, or just the rotors?

6. Any idea how much it might cost in labor to swap the brake likes and pads?
Appreciate 0