Actually, now that you mention it, that foam is also for sound
deadening. I'd forgotten about it as it doesn't usually give problems,
and it's below the air filter, so if it breaks up, it doesn't clog the
air mass meter screen like the piece on the lid. With the airbox lid
off, the air filter should hide this from view until removed - is it
possible there's no air filter at all in your car?
--
Mike F.
Thornhill (near Toronto), Ont.
Replace tt with t (twice!) and remove parentheses to email me directly.
(But I check the newsgroup more often than this email address.)