My Ford Focus (2002) has a small leak in the passenger foot-well
At the RHS of the foot-well, near the centre-line of the car,
there is what appears to be a rectangular black plastic port. I thought it was
an air vent. At first glance, the port seems to have an open aperture, but inserting fingers inside the port reveals that it is blanked off inside. This port protrudes from the floor of the car
and is surrounded by carpet. Removing the top layer of carpet reveals the
underlay. The port has a rubber seal around it at the point it disappears into
the metalwork. Squeezing the seal , makes a small amount of water weep from it.
It’s not flooded, just about a teaspoon full. Not sure how to resolve this.