Anyone know what causes the black spottiness on brake rotors? I put new pads and discs a couple of months ago and noticed black spots or pits on the rotors of my rear brakes. The discs i replaced had the same symptom. I thought they were just old.
so this is a common problem with 9-5s? i don't think my '99lpt had that problem. But then again, i sold it shortly after i put new brakes on the rear.
If its common, then i have nothing to worry about. Thought maybe i had ceased calipers or something.
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