Ron_S

i think this is the root cause for me, as shown in your pics. not sure how you got access to this part, do you have a suggestion on how can i clean this footwell ? or should I go from the bottom, remove black plastic trim and then try to increase the drain hole opening?

Having the same problem ... 😞 i think I got two suspects for water coming in at passenger area and then moving towards back seat of passenger area: 1. tested all four sunroof drain holes, front two are kind of slow, i noticed water drips from three-four places at the bottom black plastic rail/trim (near front passenger tire and also between passenger and rear passenger seats) when I pour water in front passenger side drain hole on the sunroof. which makes me think, the blockage is at the body frame(footwell) where drain pipe drops water and it got clogged up, or slow to drain water from here to ground. to clean this part, what do you suggest? should i remove the electric parts ? not sure how another user(zeppo) got the pic of it. i think its the culprit in my case, let me know if you have any suggestions(attached pic from prior reply from another user) 2. Another suspect is the leaves/debris below wiper in the front windshield since i was parking under the tree 😞 i can clean the leaves etc but not sure how to open and elan under it , just to make sure there is no blockages from this drain.