I have EBC red pads on my R53 and they're properly bedded in, however I've noticed an interesting phenomena with their performance. I haven't had a chance to get them on a track, but on the street, they have a great initial bite, but when I really get on them it seems like the braking force isn't proportional to pedal pressure. ie I press harder on the pedal but the braking force doesn't increase.

I've tried a couple of times to warm the brakes and see if it makes a difference in performance but I haven't gotten a good chance due to traffic and the nature of street driving. Has anybody else noticed anything like this? it's not particularly upsetting, but it makes me wonder if I should consider a different pad next time I need new ones.

 

Have you ever changed the brake fluid? This could be the problem.

 

I like where you're head is at, but yeah, I bled the brakes with new unopened fluid about 4 or 5 months ago when I installed new pads and rotors.

 

Spongy brake lines.?