Help needed - I broke the subframe bolt

[pundit]

6 is not a normal bolt it's pressed into it's hole in the body, i've never needed to change one in a e34 but they usually can be hammered out in other bimmers, the trick is doing it without screwing up the new one if you go for a used one

Okay!

[BigKriss]

http://www.bmwe34.net/e34main/mainte...amebushing.htm

This shows how to remove the bolt, but how do I hammer it out, since the bolt it broken. The bolt is stuck inside. Do I have to drill it out or remove it from the top. I'm lost as what to do. I'm getting the parts from BMA autoparts, seems the easiest way to go.