When opening the hatch on my 03 Cooper - I get alot of water coming out of the drain holes along the bottom of the door. Only started recently - there must be a hole letting water in - possibly where the rear wiper arm comes through the door - there is some inward play on the wiper arm. Otherwise the door seems to seal OK - no breaks in the weatherstrip and the trunk area is dry. Anyone else experience this and what are the fixes? I just hope the gathering water hasn't started a rust fest.