Sealing the opening at the front of the sills

I have been cleaning up my front inner wings and have removed the panels at the rear of the inner wing and cleaned up the wiring and water hoses. The front of of the sills is open to the elements and the removable panel does not seal this gap when it is replaced.

The previous owner had squirted in some expanding foam and this sealed the opening and it seems to have kept this sills very clean. It was easy enough to remove and I was wondering if I should squirt some replacement foam in the gaps when I put everything back together or not.

If I seal it no water will get in but I am wondering a) what the original method of sealing was and b) am I better to leave it open so that air can blow through it.

I know there is not much rain here in the Middle East but one day the car will go back to the UK.

Simon

 

Thanks Tony, taht is pretty much what I thought.

Simon

 

Thanks Tony, that is pretty much what I thought.

Simon