I siliconed the windscreen grommets in my 2007 NC a couple of years ago and have regularly cleaned out the hood drain tubes and door drain holes. As a result she has been totally dry inside for the 8 years that I’ve owned her.
That is until last week’s biblical downpours during which water gathered on the driver’s side scuff plate which then ran into the diver’s footwell.
I took the door card off and took out the large Bose speaker (which was soaked but did dry out OK) and saw that the door drain holes were as I thought, clear, but that water had been coming in and draining out onto the scuff plate via the clips on the inner door seal.
Much staring, pondering and tea drinking later, I discovered that the little bit of trim on the leading edge of the seal that runs between the door skin and side window was loose and that there was a rectangular hole underneath it where, I presume, a clip to hold it down was supposed to be.
I siliconed the trim back on and when set, attacked the area with a pressure washer. It’s also rained since then but so far so good.
Hope this helps someone
Regards
Darryl