Had my wiper mechanism replaced at a local 'garage'. Since then full of water in passenger side. To dry this properly you'll need to cut the 1.5" of soundproofing out from under the fitted carpet (this will never dry out on its own, it holds a massive amount of water). I re-newed the long rubber seal that fits under the wiper tray (that's the tray you have to remove to get at the wiper mechanism and the pollen filter, held in by three bolts). Fords couldn't find this on their parts database so I bought one from Seat for