I own a XC90 and about six months ago I notcied that my driver side floor mat was wet after a rain storm. I brought it to my dealer and they said that where the water drained from the roof and car was blocked from debris. they cleaned it out and it was fine. Six months later I noticed the water again. I was wondering if anyone knows where the drains need to be cleaned so i can do it myself. i think they might be where the windshield meets the front hood. I noticed a few vent areas that looked like they had some leaves covering them. I would appreciate it if anyone knew exactly what needs to be cleaned or unblocked. thanks, again.
GD

 

If you remove the A pillar (The panel on the inside of the windsheild) then you will see the clear drain tube going down to the side if the dash make sure the hose didn't pop out of its place.

If it is still secured then check for blockage.