brake fluid exchange

[tower]

I have now attempted to do the brake fluid change on both the "E" and "S" this past weekend, but am left with a question. I was successful in replacing the fluid in the brake reservoir and bleeding from the wheel calipers, but I cannot for the life of me see where the fluid drains from the antilock break controller (ABS). On both of the beasts, the ABS controller does not look anywhere close to the picture described in my copy of the "Mercedez-Benz E-class Owner's Bible".

Does this system automatically bleed the ABS system and reservoir when doing a conventional brake bleed?

Ron