I was coming here to ask about this. I have damp carpet in the left rear storage compartment. I purchased new tail light seals thinking that was the problem but the old ones look basically BRAND new and there is no trace of water having slipped in right there.

I did upgrade to the springy bump-stops a couple of months back. You think that could be the issue?

the wet carpet is confined to the bottom of the rear storage compartment where the amp and phone wiring harness it zip-tied.

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2005 X5 3.0i - 71k mi (9.2018) -> 81k (9.19) -> 100k 9.21 -> 123k (8.25)
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SOLD : ( 2003 X5 3.0 - 177k mi (9.2018) -> 186k (9.19) -> 205k (9.21)
SOLD : ( 1997 328is Coupe - Hellrot Red
SOLD : ( 1988 528e w/ Bullseye s256 / MS2 Extra / GC Coilovers / Yukon Coils ~ 300+ HP