Search for the correct bleeding procedure. For starters, the heat should be full on while you're topping it off.

__________________
Black Sapphire MetallicNevada BrownDark Bamboo e70 X5 xDrive4.8
Alpine WhiteCoral RedAluminum f30 328i Sportline/6MT
Imola RedBlackBlack Aluminum e46 330i ZHP/6MT