front caliper bleeding

[JamesVD]

Hello All

I am stumped. Normally can figure mechanical things out.

Why two bleed screws on the front caliper? Why two brake fluid lines to the caliper? Only get fluid out of the top one. Also the center piston does not extend.

I am totally baffled?????

Thanks in Advance!
James

[iceman]

Combi brakes - one bleed is for the out pistons (main reservoir) and the centre piston is the CBS system, and the reservoir is usually behind the dash and harder to get to (have to remove plastics and bits to get to it easily).