Is tweeter defective?

Good afternoon motor talk! I have now installed in my Peugeot 307 the 2 way front system Cs760c from JBL. Super clear and just nice sound for every music direction. So completely satisfied. BUT something is not right with the right tweeter, there is always a well audible scratch on it. The funny thing is that this has also disappeared for 3 hours, but now occurred again. At the installation I intended to leave out the crossovers, because actually standard moderate which of the old original Peugeot tweeters must be installed.. or?… What could the problem be? Is the tweeter perhaps defective? Would JBL replace a single tweeter? Or does everything have to be expanded again? Thank you in advance! I wrote this via mobile phone, so please don’t pay attention to the errors!