I noticed today that my passenger side door card is getting wet along the bottom. Before i fitted the door card i made sure i taped over all the splits in the polythene. I swapped the outer door scraper with the inner door scraper from the other side but it still seems to let water in from somewhere

there is defo no way it's getting through the polythene behind the doorcard?

make sure the drain holes are clear in the bottom of the door (there are 2)

could be filling up inside and overflowing through the air escape flaps.

i'll check 2moro

think you will find them about 2" from each bottom corner of the door tucked up behind the bottom seem.

a door key should be about the right size to poke in them

before i clear them i'll take the door cards off to see if i can see a collection of water in door.