About two weeks ago I replaced the brake caliper and bracket (plus pads and rotors, but that's not important here) with a shiny new remanufactured one. I was under the car the other day and noticed they had already started corroding. Is this normal?
I realize there is brake dust down there... could it be due to leaking brake fluid (I initially had not tightened the banjo bolt enough which i realized while bleeding the system, and that might be the source of the deep orange corrosion in the photo)? My reservoir seems to be topped up. Or perhaps it's just normal? Just wondering...