Rattle in sunroof comp., code P0240?

[prmoorman1]

I have a 1997 528i, I have a unnerving rattling in the sunroof compartment!
Anybody ever having had, or having this problem please weigh in on a
solution, and how to enter in there to see what the problem, and the cure
will be. It is very unsettling! I read somewhere, I think, they say you raise
the roof,and that there is 7 star screws on each side, and the glass will
come out,or, something to that effect. While here, anyone know the code
P0240 bank 1? Specifics please. thanx