One of the problems I noticed with my '02 Cooper S when I first got it was the rear window washer did not spray washing fluid. I tried to clear it and ended up taking apart half the wiper motor and clearing 3 or 4 clogs in various locations, but there is still a major block between the motor and the wiper arm. A heavy wire won't clear it and it comes back out with an inch or two of dirty grease on it. Is there any way to clear this block or is replacing the wiper motor my best option?

 

I wish someone had an answer. I have the same problem.