Evening all
Whilst taking my seats out to refit new plastic clips to the base of them to hold them in place

thought I would check under the carpets for rust etc.... Floors are as new which is the good news

but..... I found this thick spongy material under the carpet (drivers side) not sure if it is original fit from new about the size of the floor mat... It was soaking wet, dripping when hung up.... so dragged it out to dry!!!! Same material found in back footwell drivers side also wet....
Expecting to find the same on the passenger side when I lift that seat out tomorrow..... Anyone got any ideas, obviously some serious water creeping in somewhere....
Any help very welcome....
Thanks in advance...