I can see that your window is dirty also below the line of maximum closure. Mine is full of green stuff as well; do you plan on taking it out and cleaning it properly? It is driving me nuts when I see the moss inside my doors.....
At the same time, I think that cleaning it with warm soapy water would do good to the weather seals on the door as well. How are they attached to the door? Just pushed in or are there some clips (waiting to be broken)?