ditto on the foam gasket for the tail lights. I had a similar problem on my e39 (well, just the traces of water at the bottom). also, there are vent crates (at least on my e39) in both compartments you may want to check just in case.

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-Greg
97 BMW 528iA -SOLD http://forums.bimmerforums.com/forum...d.php?t=551141 Alpine white on black, H&R, Michelin, Hella, Alpine 9855 - run 3 way active, typeR 12" 2005ed sub, ED NINe.1 sub amp, ED NINe.4 comp amp, box 2.5cu.ft tuned to 30Hz, 7" Dayton Reference, LPG25NFA tweeters

References: bimmerforums.com