Quote Originally Posted by shogun
Might be helpful some day when you have to change the heater core.
http://img372.imageshack.us/gal.php?g=DSCF4274.jpg
Pics were made by a member of the German E34 Forum
Superb photos. Rather complex, but it help understand how it's build, thanks very much for that.

In my particular case i would have appreciate photos pinpointing /showing more specificaly the different flaps from the indide and outside of the box, in particular it's difficult to figure out where the "air recirculation" and "fresh air" flaps are located, how they are activated and what they look like.