I was at a stop light and the brake rapidly(3 to 5 sec.) went to the floor. The pressure came back after driving around, then at the next stop light the same thing. Would this be the brake servo telling me its time to be replaced?

 

On a D1, most likely your master cylinder is failing, is it leaking and if so has it gotten into the booster? How often do you change your brake fluid? Dirty fluid is one thing that will kill your master cylinder as well as the ABS module.

 

I changed the fluid 6 months ago (syn. DOT5) with a good bleed to make sure that I only had syn. in it. It has not been leaking

 

Master cylinder is bleeding internally, time for a replacement.