Today I was doing my every-2-year brake fluid flush on my BMW. I had finished with the two back wheels, and was starting on the front passenger side wheel, when I sheared off the bleed screw on the caliper DAMMIT! So, now, there's no part of it above the caliper housing as it sheared evenly at about the housing level. What really annoys is that I was leaving for Florida in the morning in the car, but I wanted to finish the flush first. I'm gonna try to find a shop that'll get the thing out and put a new one in in the morning but may be unalbe to on such short notice. (I tried for a while doing this myself, but have finished with that attempt.)
This may seem like a stupid question, but it's not something I've thought much about: If I use the car for a couple of weeks with the front lines un-flushed, would the fluid in those lines affect the nice clean fluid in the lines to the back wheels? IOW, if I flush the front lines in a couple of weeks, will it be as good as if I'd been able to do them all today? Thanks.