Hi I've had issues finding a leak in a 2011 Ford Fiesta. It's the rear passenger side. Today I've taken the door card off expecting to find a plastic vapour barrier/membrane but all there is a black plastic panel with a sticky seal under the outer edge as shown in the photo. Is this normal? It doesn't seem to be leaking from here anyway as I had the hose on the window at the same time to see if I could see any water ingress.
