I am in the middle of replacing the evaporator on my 740 turbo. As described in the FAQ, putting the lower cover back on the HVAC box is extremely difficult. What the FAQ doesn't talk about is the possiblity of looseing that side of the whole box from the firewall. If I could do this -- I think even 1/2" of wiggle room would make this job MUCH easier.

So - does anyone know how this beast attaches to the firewall? I found one bolt near the evaporator drain, but it didn't seem to help much. Another bracket inside at the top of the box didn't help much either. Right now, it looks like the fresh air intake is holding it fast in place. But before I remove the cowling to look for a bolt under there -- Anyone know right away whether there is a bolt or bracket under the cowling that will free this side (the fan side) of the HVAC system?

Thanks -

AJ