the rust in passenger floor can come from block air con drain tube, or from the plenum intake. When the bonnet is up, above the fire wall you will see the wiper motor on the drivers side and on the passenger side the is a blanking plate with a seal, this is where the wiper motor would go on left hand drives models. Water can run past this seal on heavy rain as the drain on the tray below cant cope fills up, water then enters the cabin. Seal with silkafex of similar.
there a couple other spots nut hose are the common water ingress spots.
block sun roof drain tubes all let water in.
rear cargo door seals let water into rear. alpine windows common to rust, I had to remove mine then weld a piece of metal in and bog and finish it.
Bookmarks