Apologize for putting this thread up. I don't intend it. Just wanna share my experience. I have the same problem and i have no idea what to do. Been looking for the TSB for the radiator and found out just by visiting the dealer. Guess the radiator cooling fan motor may have been improperly assembled. Customer satisfaction notification e19 radiator cooling fan module. they said they'll gonna do the job in the shortest period. a month later i visited the car and according to them its not yet done. WTF. so i got it to the mechanic with the tsb...done the repair and the problem has now been resolved.