A hint to make things easier with disc brakes.
Being a hot rodder at heart, really dislike bleeding brakes and needing two people unless you have a pressure bleeder or a Mity-Vac (which never worked well for me)
I had to bleed the brakes on our 5er yesterday after having to remove a line to drop the front belly cover. When I installed the disc system a couple years ago, I installed Russel Sprrd Bleeders. These are a bleeder that is a miniature check valve that opens only under fairly high brakeline pressure. This in turn will allow you to open them, put your drain hose on then go and operate the actuator pump - without having a second person. Oh and you do need to top off the actuator reservoir after each wheel. I ended up using just about a pint of brake fluid and 15 minutes to do ours. I also installd them on my truck when I upgraded the brakes
http://www.russellperformance.com/mc/speed-bleeders/
You do need to confirm the correct sixe. Mine were 3/8" but had been told that they were 1/4" by etrailer, the caliper supplier.
Amazon also sells them