I am having a brake issue on my M3.
I have always thought the brakes were not as good as they should be, and have trouble getting the abs to engage, even when I try to stomp the pedal hard.
Since I have had the car, all rotors and pads were replaced and calipers completely rebuilt. System was flushed and bled with Ate super blue, and all rubber lines to the calipers and the two over the subframe have been replaced with Goodridge stainless lines.
Fast forward to this season, and I took the car for a warm up drive around the neighbourhood to scrub any surface rust off everything, then went for a run up to grouse mountain from my house out by Seymour mountain. (about 35-40 min round trip)Got back to the house and pulled the wheels off as the brakes did not sound right to me. When I pulled the wheels off, I found the rear rotors still rusty and the fronts clean. The rear pads look almost new (after 1000 miles on the car).
Is this an ABS pump issue or M/C issue or brake bias valve issue.........do you think?
If I bleed the rears I get fluid fine, so the line or T is not plugged, it just doesn't seem to clamp the rears very well.
Also, my ATE m/c has a circle with a 30 in it. Is that the normal m3 m/c.