Hi
Had a search and can't find anyone else who has had this issue but I may be wrong.
I noticed this in the recent bad weather when my windscreen got very mucky, very often so I was using lots of screenwash.
When I clean my windscreen my passenger footwell gets wet!
The screenwash is leaking in where the carpet goes under the plastic trim, I only noticed it when I went for my dual controls and due to the carpet and mat being so wet my foot slipped straight off the pedal. (Luckily it was the clutch not eh brake so we stopped)
I then watched as it bubbled in everytime the screen needed a clean - I'm pretty sure it shouldn't do this.
Any ideas?