The hard top on my 328ic convertible leaks just back of the "A" pillar, dripping on to the outer edges of the front seats. Not sure if the soft top leaks or not as heavy rain is rare except in winter when I have the hard top on. The BMW dealership seemed clueless about how to fix this problem so I did not let them work on it. Might it be a blocked drainage duct in the "A" pillar? or what?