[zycad]

i have replaced the brake servo and master cylinder on my s4 spider,but i didn't bench bleed the master cylinder before putting it in.will a good bleed of the system remove all the air from the master cylinder or do i need to bleed the master cylinder? and how do i bench bleed the master?

 

[Jim Spackman]

You should be able to bleed it normally in the car. I did this recently in my 75 which runs essentially the same cylinder.

 

[SimonGTV]

No need to bench bleed, rebuilt mine recently, bled the calipers then the master cylinder and all's good.