I’m going to be replacing the right front brake caliper, when I go to bleed the brakes do I bleed right front then the left front, or right front and then left rear? Do both front brake lines go to one half of the master cylinder, or does the right front and left rear go to one half of the master cylinder? (1996 850)
Thanks in advance.

 

I always have bled the longest line first, so I always go right rear, left rear, right front, left front, in that order.

 

If you are just changing one caliper, then just bleed that one wheel. No need to do all 4 wheels unless you step on and release the brakes with the line off.

 

Johnny M. is correct in that you could get by with just bleeding the corner you're replacing, but depending on how long the caliper is off the car and the line is open to air, there's a chance air could get in the rest of the system. May as well do all the corners if you're due for a brake fluid flush though.

In any case, i would recommend using a pressure bleeder; i have one from these guys:
http://www.motiveproducts.com/

That makes it a one man job, and it's much easier to get all the air out of the system.

As for you last question; it's partitioned LftRear/RtFront and RtRear/LftFront. Not sure when it happened (years ago) but it's mandated for all car manufacturers for safety's sake. If they were partitioned BothFront and BothRear what would happen if you lost BothFront? You would not be able to stop very effectively since most of your braking power is in your front brakes!

 

Thanks to all.

Bob.